Best Integration Testing Companies Across the USA

3 min
Targets we’ve achieved:
Increased US Software Development Company's annually acquired clients by 400% *
Generated 50+ business opportunities for UK Architecture & Design Services Provider *
Reduced cost per lead by over 6X for Dutch Event Technology Company *
Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
Boosted conversion rate of Ukrainian IT Company by 53.6% *
Increased US Software Development Company's annually acquired clients by 400% *
Generated 50+ business opportunities for UK Architecture & Design Services Provider *
Reduced cost per lead by over 6X for Dutch Event Technology Company *
Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
Boosted conversion rate of Ukrainian IT Company by 53.6% *
Increased US Software Development Company's annually acquired clients by 400% *
Generated 50+ business opportunities for UK Architecture & Design Services Provider *
Reduced cost per lead by over 6X for Dutch Event Technology Company *
Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
Boosted conversion rate of Ukrainian IT Company by 53.6% *
Increased US Software Development Company's annually acquired clients by 400% *
Generated 50+ business opportunities for UK Architecture & Design Services Provider *
Reduced cost per lead by over 6X for Dutch Event Technology Company *
Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
Boosted conversion rate of Ukrainian IT Company by 53.6% *
Increased US Software Development Company's annually acquired clients by 400% *
Generated 50+ business opportunities for UK Architecture & Design Services Provider *
Reduced cost per lead by over 6X for Dutch Event Technology Company *
Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
Boosted conversion rate of Ukrainian IT Company by 53.6% *
Increased US Software Development Company's annually acquired clients by 400% *
Generated 50+ business opportunities for UK Architecture & Design Services Provider *
Reduced cost per lead by over 6X for Dutch Event Technology Company *
Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
Boosted conversion rate of Ukrainian IT Company by 53.6% *
Sergii Steshenko
CEO & Co-Founder @ Lengreo

Introduction

As businesses embrace complex digital ecosystems, integration testing becomes essential for ensuring seamless interaction between software modules. In the USA, several companies specialize in delivering high-quality integration testing services. These firms help organizations prevent costly system failures, reduce downtime, and improve user experience by verifying that all components of their applications work together as intended. This article highlights top integration testing providers known for their technical expertise, reliability, and innovation.

1. LenGreo

1. LenGreo

At Lengreo, we focus on B2B digital marketing with a strong emphasis on strategy and lead generation. Our goal is to help businesses, especially in the software and IT sectors, connect with potential clients through targeted outreach. We provide integration testing services in the USA. By improving their visibility and helping them attract new business opportunities, our work often supports the efforts of QA and testing teams indirectly.

We offer services such as consulting, SEO, content marketing, and paid advertising campaigns. These help our clients strengthen their market presence, attract qualified leads, and streamline their sales processes. Our approach is based on practical execution and alignment with each client’s business goals, with experience working across different industries and markets, including the United States.

 

Key Highlights:

  • We specialize in B2B lead generation for software and IT companies
  • We build and optimize client acquisition strategies
  • We use LinkedIn, email outreach, and cold calling for targeted campaigns
  • We support clients across different countries, including the USA
  • We align digital efforts with overall business and sales goals

 

Services:

  • B2B digital marketing strategy and consulting
  • Lead generation and appointment setting
  • SEO and content marketing
  • Paid advertising campaign management
  • Demand generation and client retention strategies
  • Website development and optimization

 

Contact Information:

Our cases
SEO for BIM & VDC Services Provider
SEO for BIM & VDC Services Provider
PPC For Adult Content Platform
PPC For Adult Content Platform
Biological Age Blood Testing Kit
Biological Age Blood Testing Kit
2. QAwerk

2. QAwerk

QAwerk provides a wide range of quality assurance services with a focus on ensuring the reliability and functionality of software across platforms. Their team supports integration testing by verifying how modules, components, and third-party systems work together in various environments. They focus on identifying bugs that might disrupt data flows or affect the user experience during module interactions. Their QA process includes manual and automated testing, making it possible to simulate user behavior and validate software across desktop, mobile, and web systems.

They support clients from early-stage planning to ongoing testing cycles, adapting their approach to each project’s needs. Their services also include security testing, documentation, and AR/VR testing. QAwerk provides dedicated QA teams, allowing companies to scale quality assurance work without expanding internal teams. They also offer overnight testing services, enabling clients in different time zones to receive results quickly. Their experience covers software in industries like gaming, healthcare, and eCommerce.

 

Key Highlights:

  • Focuses on quality across web, mobile, and desktop platforms
  • Offers dedicated QA teams for external support
  • Uses manual and automated testing methods
  • Provides overnight testing for faster turnaround
  • Covers AR/VR and security testing in addition to standard QA

 

Services:

  • Integration testing
  • Web, mobile, and desktop app testing
  • Manual and automated testing
  • Penetration testing
  • AR/VR testing
  • Documentation and QA consulting
  • Dedicated QA team setup
  • Overnight testing service

 

Contact Information:

  • Website: qawerk.com
  • E-mail: sales@qawerk.com
  • Facebook: www.facebook.com/QAwerk
  • Twitter: x.com/qawerk
  • LinkedIn: www.linkedin.com/company/qawerk
  • Instagram: www.instagram.com/qawerk.testing
  • Phone: +1 347 329 1444

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    3. A1QA

    3. A1QA

    A1QA delivers quality assurance services across different software types, with a strong focus on integration testing in complex systems. They help verify the interactions between modules, APIs, databases, and third-party services to ensure consistency across application layers. Their integration testing is closely aligned with Agile and DevOps practices, and can be included in CI/CD pipelines for continuous feedback throughout development cycles. Their goal is to identify miscommunications between components that unit testing might not catch.

    Their team supports a wide variety of systems including web, mobile, cloud, and embedded applications. In addition to integration testing, they provide performance, usability, and security testing. They also work on test automation and QA strategy, making it possible to embed quality practices into the development lifecycle. A1QA operates from multiple global locations, including a U.S. office, allowing closer collaboration with American clients and software teams.

     

    Key Highlights:

    • Works with complex, multi-module systems across platforms
    • Offers integration testing as part of full-cycle QA services
    • Supports Agile and DevOps workflows
    • Provides local collaboration through U.S. office
    • Combines manual, automated, and continuous testing

     

    Services:

    • Integration testing
    • QA consulting and strategy
    • Manual and automated testing
    • Functional and performance testing
    • Cybersecurity and compatibility testing
    • Documentation services
    • Regression and migration testing
    • User acceptance and accessibility testing

     

    Contact Information:

    • Website: www.a1qa.com
    • Facebook: www.facebook.com/a1qa.software.testing
    • Twitter: x.com/a1qa_testing
    • LinkedIn: www.linkedin.com/company/a1qa
    • Address: 160 Clairemont Ave, Suite 200, Decatur, GA 30030, USA
    • Phone: +1 720 207 5122
    4. TestMatick

    4. TestMatick

    TestMatick provides integration testing services aimed at verifying communication between modules, services, and third-party systems. Their team focuses on identifying data mismatches, broken logic, and cross-module bugs that can affect performance or stability after individual components have passed unit testing. Their approach includes custom test plans integrated into CI/CD pipelines, allowing early detection of issues during development and release cycles.

    They test web, mobile, and enterprise applications using both manual and automated methods. Their lab is equipped with a wide range of devices and environments to simulate real-world use cases. This helps uncover problems related to compatibility, system behavior, and integration between services. TestMatick also supports functional, usability, and performance testing, making it possible to test the full product experience. Their services are accessible to U.S. clients through their presence in New York.

     

    Key Highlights:

    • Offers integration testing across full workflows and platforms
    • Runs tests in CI/CD environments to catch issues early
    • Uses device labs to simulate real user interactions
    • Covers multiple types of testing beyond integration
    • Provides reports focused on actionable results

     

    Services:

    • Integration testing
    • Functional and usability testing
    • Manual and automated QA
    • Performance and compatibility testing
    • Mobile and game testing
    • Penetration testing
    • Testing across various OS and device configurations

     

    Contact Information:

    • Website: testmatick.com
    • E-mail: contact@testmatick.com
    • Facebook: www.facebook.com/testmatick
    • Twitter: x.com/testmatick
    • LinkedIn:  www.linkedin.com/company/testmatick
    • Instagram: www.instagram.com/testmatick.team
    • Address: 276 5th Ave Suite 704, New York, NY 10018
    • Phone: +1 (212) 203-8264
    5. CelticQA

    5. CelticQA

    CelticQA provides integration testing services to U.S.-based software teams, with a focus on verifying how system components interact in real environments. Their approach includes testing data transfers, API communication, and dependencies between internal modules and third-party services. By embedding these tests into CI pipelines, they help clients detect problems early in the release cycle, reducing the risk of deployment failures caused by integration issues. Their test execution methods aim to mirror actual user and system workflows, allowing for early discovery of hidden issues.

    In addition to integration testing, they support broader quality assurance strategies including test automation, manual testing, and performance validation. Their services also include planning QA roadmaps and improving QA maturity, particularly for organizations working with growing technology stacks. Operating from multiple U.S. locations, including Georgia, CelticQA combines technical processes with standardized reporting to help clients maintain quality across complex systems and fast development cycles.

     

    Key Highlights:

    • Focuses on integration testing across complex systems
    • Supports CI-based workflows for faster release feedback
    • Offers QA maturity planning and process optimization
    • Applies consistent test execution standards
    • Works with both internal and third-party system components

     

    Services:

    • Integration testing
    • Test automation
    • Manual and functional testing
    • Performance and regression testing
    • API and data migration testing
    • QA strategy development
    • Continuous integration support
    • Robotic process automation

     

    Contact Information:

    • Website: celticqa.com
    • E-mail:  info@CelticQA.com
    • LinkedIn: www.linkedin.com/company/celticqasolutionsus
    • Address: 1720 Mars Hill Rd 8 201, Acworth, GA 30101, USA
    6. QA Madness

    6. QA Madness

    QA Madness offers integration testing services designed to validate how different system parts work together across web, mobile, and desktop platforms. Their engineers create and execute test scenarios to check the behavior of APIs, databases, services, and user interfaces in combined workflows. They help uncover common issues such as broken data flows, inconsistent logic, or failed third-party integrations that may not be visible through isolated testing.

    Their testing is integrated into clients’ CI pipelines to support frequent verification with each code change. The QA Madness team delivers test results in sync with development sprints, making it easier for product teams to prioritize and resolve integration-related bugs quickly. Their approach is structured to adapt to different tech environments and project sizes, supporting continuous delivery goals while maintaining system stability and functional integrity.

     

    Key Highlights:

    • Conducts integration testing across web, mobile, and desktop systems
    • Detects cross-component failures and logic mismatches
    • Aligns test delivery with Agile sprint cycles
    • Integrates testing into CI pipelines
    • Works with multiple tech stacks and architectures

     

    Services:

    • Integration testing
    • Web and mobile app testing
    • API testing
    • Manual and automated testing
    • Cybersecurity testing
    • Dedicated QA team support
    • QA consulting and audit

     

    Contact Information:

    • Website: www.qamadness.com
    • E-mail: hello@qamadness.com
    • Facebook: www.facebook.com/qa.madnesss
    • Twitter: x.com/Qamadness
    • LinkedIn: www.linkedin.com/company/qamadness
    • Instagram: www.instagram.com/qa.madness
    7. PixelQA

    7. PixelQA

    PixelQA provides integration testing services as part of their broader quality assurance offerings. Their team focuses on validating the interaction between application modules, APIs, backend systems, and external services. By simulating real user behavior and combined system operations, they help detect and resolve failures in process flow, data consistency, and logic execution across software components.

    They support integration testing across industries like healthcare, finance, and e-commerce, adjusting to project-specific requirements and release schedules. PixelQA also provides support for continuous testing through automation and CI integration. Their testing models are flexible, allowing clients to choose between dedicated QA teams, fixed-scope projects, or time-based engagements depending on development needs and resources.

     

    Key Highlights:

    • Validates cross-system functionality and third-party integration
    • Offers flexible testing models for different project types
    • Simulates full workflows to detect hidden integration issues
    • Works with industry-specific systems and compliance needs
    • Supports automation and continuous integration

     

    Services:

    • Integration testing
    • Manual and automated QA
    • API and load testing
    • Regression and system testing
    • Security and compatibility testing
    • Dedicated QA resources
    • CI-based test automation
    • Testing across finance, healthcare, retail, and more

     

    Contact Information:

    • Website: www.pixelqa.com
    • E-mail: info@pixelqa.com
    • Facebook: www.facebook.com/pixelqa.company
    • Twitter: x.com/pixelqa_company
    • LinkedIn: www.linkedin.com/company/pixel-qa
    • Address: 14720 E., 44th St. S. Independence, MO, USA 64055
    • Phone: +1 540 404 5858
    8. ScienceSoft

    8. ScienceSoft

    ScienceSoft offers integration testing services tailored to validate how software modules interact in real-world workflows. Their team focuses on testing the connections between internal systems, APIs, and third-party components to detect integration failures like broken data exchanges, logic inconsistencies, and interface mismatches. These tests are designed to go beyond unit-level validation by replicating full business processes and identifying issues that might not show up in isolated modules.

    Their integration testing process is embedded into continuous integration pipelines, supporting fast feedback and defect detection on every code merge. Operating from their Texas office, they align with U.S. business hours and development practices. Their test coverage supports Agile workflows and includes structured reporting that gives engineering teams clear insights into system-level performance and integration risks across distributed systems.

     

    Key Highlights:

    • Performs system-level integration tests within CI pipelines
    • Verifies real-world interactions between APIs, services, and modules
    • Offers structured test reporting and clear feedback loops
    • Aligns testing with Agile delivery practices
    • Supports collaboration across U.S.-based software teams

     

    Services:

    • Integration testing
    • Custom software development
    • QA and test automation
    • IT consulting and infrastructure services
    • Cybersecurity and compliance testing
    • Data analytics and application support

     

    Contact Information:

    • Website: www.scnsoft.com
    • E-mail: contact@scnsoft.com
    • Facebook: www.facebook.com/sciencesoft.solutions
    • Twitter: x.com/ScienceSoft
    • LinkedIn: www.linkedin.com/company/sciencesoft
    • Address:5900 S. Lake Forest Drive Suite 300, McKinney, Dallas area, TX 75070
    • Phone: +1 214 306 6837
    9. Jalasoft

    9. Jalasoft

    Jalasoft provides integration testing services for U.S. development teams, focusing on how application components interact across distributed systems. Their engineers simulate real usage scenarios to test service connections, backend integrations, and external APIs. They help identify hidden failures such as broken logic chains, database sync issues, or missing API responses that might surface after deployment if left unchecked.

    Integration testing is part of their automated CI workflow, enabling detection of cross-component issues during development rather than in production. Their nearshore delivery model supports close time zone alignment and live collaboration with U.S.-based clients. Their engineers integrate with existing teams and toolchains to provide targeted integration testing while maintaining delivery speed and code quality across iterations.

     

    Key Highlights:

    • Designs integration tests for complex system interactions
    • Uses nearshore delivery with time zone alignment to the U.S.
    • Embeds testing into continuous integration workflows
    • Works with real data flow and multi-service logic
    • Supports live collaboration during daily stand-ups

     

    Services:

    • Integration testing
    • QA automation and functional testing
    • Software development and DevOps services
    • CI/CD pipeline integration
    • Dedicated team and staff augmentation models

     

    Contact Information:

    • Website: www.jalasoft.com
    • Facebook: www.facebook.com/JalasoftLatam
    • LinkedIn: www.linkedin.com/company/jalasoft
    • Instagram: www.instagram.com/jalasoft
    • Phone: +1 (254) 284-7459
    10. TestFort

    10. TestFort

    TestFort offers integration testing for U.S.-based teams with a focus on detecting faults across systems that rely on complex workflows. Their QA specialists validate how various components like APIs, databases, and third-party services work together, simulating realistic application scenarios. Their goal is to catch integration-related failures such as broken API calls, invalid data transfers, and inconsistent state changes across services.

    Their approach incorporates integration checks into the CI/CD pipeline, helping teams validate service connections automatically on each code push. Test scenarios are tailored to reflect the domain risks of sectors like healthcare, fintech, and e-commerce. Detailed and prioritized test reports help clients identify and fix issues quickly without slowing down the release cycle.

     

    Key Highlights:

    • Runs integration testing across regulated and high-traffic systems
    • Uses CI/CD integration for continuous validation
    • Detects cross-system defects that unit testing may miss
    • Tailors test scenarios for industry-specific workflows
    • Provides ranked issue reports for faster resolution

     

    Services:

    • Integration testing
    • Manual and automated QA
    • Functional and regression testing
    • Load, security, and API testing
    • Dedicated QA teams and consulting
    • Testing for healthcare, retail, and finance systems

     

    Contact Information:

    • Website: testfort.com
    • E-mail: contacts@testfort.com
    • Twitter: x.com/Testfort_inc
    • LinkedIn: www.linkedin.com/company/testfortqa
    • Instagram: www.instagram.com/testfort_ua
    • Address: 30 N Gould St, Ste R, Sheridan, WY 82801, USA
    • Phone: +1 310 388 93 34
    11. Sun Technologies

    11. Sun Technologies

    Sun Technologies delivers system integration testing services focused on validating the communication between interconnected software components. Their testing process targets interface-level issues rather than individual module bugs, using both white-box and black-box techniques. They prepare structured test plans, simulate data flow across modules, and track issues that surface when subsystems interact. Their approach supports risk-based analysis and incorporates automated tools for execution and defect tracking.

    They use incremental testing methods including top-down, bottom-up, and hybrid strategies based on system architecture. This helps isolate issues early and maintain stability as systems evolve. Their integration testing covers industries such as BFSI, retail, healthcare, and manufacturing. With support from their internal QA automation center and scriptless testing tools like IntelliSWAUT and SWAUT, Sun Technologies provides scalable integration test coverage for enterprise applications and services.

     

    Key Highlights:

    • Focuses on interface-level fault detection
    • Applies white-box and black-box integration methods
    • Uses incremental testing strategies based on system architecture
    • Covers industries including BFSI, healthcare, and retail
    • Supports automation via internal tools and frameworks

     

    Services:

    • Integration testing
    • Automation testing using IntelliSWAUT and SWAUT
    • QA strategy and process development
    • Infrastructure monitoring and modernization
    • Robotic process automation
    • Data scraping and AI/ML testing
    • Game testing services across platforms

     

    Contact Information:

    • Website: www.suntechnologies.com
    • E-mail: sales@suntechnologies.com
    • Facebook: www.facebook.com/SunTechnologies1996
    • Twitter: x.com/SunTech_Inc
    • LinkedIn: www.linkedin.com/company/sun-technologies
    • Instagram: www.instagram.com/sun.technologies
    • Address: 3700 Mansell Road Suite# 220, Alpharetta GA 30022, USA
    • Phone: (770) 418-0434
    12. Plego Technologies

    12. Plego Technologies

    Plego Technologies provides integration testing services that verify the compatibility and coordination of software components across APIs, services, and databases. Their process involves both manual and automated test execution, aiming to catch integration-related errors during early development stages. They design test cases for real-world use scenarios and system-level workflows to ensure that connected components behave consistently when working together.

    Their test strategy includes bottom-up, top-down, and incremental approaches depending on system needs. These are used to simulate interactions between subsystems, allowing teams to address issues before deployment. Plego supports integration testing in combination with functional, regression, and continuous testing efforts. Their service extends to various business domains and software environments, including web, mobile, and enterprise systems.

     

    Key Highlights:

    • Designs integration tests for web, mobile, and enterprise systems
    • Uses both manual and automated testing approaches
    • Simulates full system workflows to uncover hidden issues
    • Supports API and web service validation
    • Applies flexible testing models tailored to project needs

     

    Services:

    • Integration testing
    • Functional and regression testing
    • API testing and data synchronization
    • Continuous integration testing
    • Automation testing
    • Product and application support

     

    Contact Information:

    • Website: plego.com
    • E-mail: sales@plego.com
    • Facebook: www.facebook.com/plegotech
    • Twitter: x.com/plegotech
    • LinkedIn: www.linkedin.com/company/plego-technologies
    • Address: 4949 Forest Ave, First Floor Downers Grove, IL, 60515
    • Phone: 630-541-7929
    13. Qualimatrix

    13. Qualimatrix

    Qualimatrix offers integration testing services aimed at confirming that software modules operate correctly together within various systems. Their focus is on building test strategies that reflect actual software architecture and interaction patterns. They support integration testing across industries like healthcare, banking, and e-commerce, and use methods that include data flow validation, interface testing, and error tracking between services and platforms.

    Their testing solutions are guided by collaboration with clients, ensuring that test coverage aligns with development goals and deployment needs. Their team applies agile practices and uses current testing tools to conduct repeatable and scalable integration tests. Alongside integration efforts, they offer continuous testing, microservices testing, and AI-based QA for modern software systems.

     

    Key Highlights:

    • Supports integration testing across industries and platforms
    • Focuses on data flow and system compatibility validation
    • Offers agile-aligned testing processes
    • Provides AI-powered QA features
    • Customizes test coverage to fit client-specific needs

     

    Services:

    • Integration testing
    • Microservice and system-level testing
    • Agile and continuous testing
    • Manual and automated QA
    • AI-based predictive testing
    • Security, performance, and usability testing

     

    Contact Information:

    • Website: www.qualimatrix.tech
    • E-mail:  support@qualimatrix.tech
    • Facebook: www.facebook.com/qualimatrix
    • Twitter: x.com/qualimatrixx
    • LinkedIn: www.linkedin.com/company/qualimatrix
    • Instagram: www.instagram.com/qualimatrix
    • Address: 4900 California Ave, Bakersfield, CA 93309, United States
    • Phone: +01 6614579795
    14. QATestLab

    14. QATestLab

    QATestLab provides integration testing services focused on verifying how individual software modules interact once combined into a complete system. Their process includes both full-system and incremental testing approaches to confirm proper communication between components. They identify problems that may arise when different parts of a solution are integrated, especially when those parts are built by separate teams or vendors.

    They adapt their testing techniques based on project requirements and development practices, whether it’s a traditional or CI-driven environment. Using both manual and automated methods, they detect integration issues early in the development cycle. This helps reduce post-release problems and improves system reliability during deployment. Their testing efforts are backed by test documentation, consulting, and independent validation when needed.

     

    Key Highlights:

    • Uses both full-system and incremental integration approaches
    • Focuses on early detection of integration issues
    • Supports traditional and continuous integration workflows
    • Applies both manual and automated testing
    • Provides independent testing and consulting services

     

    Services:

    • Integration testing
    • Manual and automated QA
    • Regression and performance testing
    • QA consulting and audit
    • Managed testing
    • Compatibility and localization testing
    • Test documentation

     

    Contact Information:

    • Website: qatestlab.com
    • E-mail: contact@qa-testlab.com
    • Facebook: www.facebook.com/qatestlab
    • Twitter: x.com/QATestLab
    • LinkedIn: www.linkedin.com/company/qatestlab
    15. QAlified

    15. QAlified

    QAlified delivers integration testing services with an emphasis on confirming that modules, APIs, and data sources operate correctly when linked together. Their team creates and runs tests based on expected interactions and workflows to ensure smooth information flow and interface compatibility across systems. They handle integration verification for both frontend and backend systems, adapting to various application environments such as web, mobile, and ERP.

    Their service models include QA outsourcing, managed testing, and consulting. These allow clients to choose the right support level depending on internal capabilities. QAlified applies best practices in test execution and reporting, helping development teams reduce integration-related defects during releases. Their testing services are used across public and private sector software, including healthcare and financial applications.

     

    Key Highlights:

    • Verifies API, module, and data interaction reliability
    • Offers flexible engagement options for QA support
    • Covers multiple platforms including web, mobile, and ERP
    • Applies standard testing practices for structured results
    • Provides consulting and training as needed

     

    Services:

    • Integration testing
    • Functional and automated QA
    • Performance and security testing
    • QA consulting and project-based testing
    • Managed QA services
    • Usability and accessibility testing

     

    Contact Information:

    • Website: qalified.com
    • E-mail: info@qalified.com
    • Facebook: www.facebook.com/QAlified
    • Twitter: x.com/qalified
    • LinkedIn: www.linkedin.com/company/qalified
    • Instagram: www.instagram.com/qalifieduy
    • Address: 3558 Round Barn Blvd. – Suite 200, USA
    • Phone: (707) 527-3819
    16. ImpactQA

    16. ImpactQA

    ImpactQA provides integration testing services as part of their quality assurance offering, focusing on ensuring seamless communication between software modules, APIs, and third-party systems. Their team uses a combination of automated and manual techniques to simulate real usage scenarios and identify issues that can occur when separate components are integrated into a larger system. Their approach supports CI/CD pipelines, helping detect defects early in the release cycle and maintaining functional stability across environments.

    They also support a range of industries including healthcare, banking, e-learning, and logistics. Integration testing is part of a broader testing framework that includes functional, performance, and security testing. Their services are delivered through managed testing models and can be tailored to fit the needs of enterprises undergoing digital transformation or software modernization. ImpactQA aligns its testing with business goals, emphasizing risk mitigation, test coverage, and operational efficiency.

     

    Key Highlights:

    • Performs integration testing with both manual and automated methods
    • Supports CI/CD pipeline integration for continuous validation
    • Works across industries like healthcare, banking, and logistics
    • Uses structured test execution aligned with enterprise QA needs
    • Provides test automation frameworks to reduce release time

     

    Services:

    • Integration testing
    • Functional and regression testing
    • Test automation and CI/CD implementation
    • Mobile and API testing
    • Usability and compatibility testing
    • Security and performance testing
    • Managed QA services and consulting

     

    Contact Information:

    • Website: www.impactqa.com
    • E-mail: solutions@impactqa.com
    • Facebook: www.facebook.com/ImpactQA
    • Twitter: x.com/Impact_QA
    • LinkedIn: www.linkedin.com/company/impactqa-software-testing-services
    • Instagram: www.instagram.com/impactqa
    • Address: 12650 Crossroads Park Dr, Suite 100, Houston, Texas, 77065
    • Phone: +1 (347) 268-6188
    17. SumatoSoft

    17. SumatoSoft

    SumatoSoft offers integration testing as part of their custom software development process, aiming to confirm that system components function correctly when linked together. They verify interactions across APIs, databases, cloud services, and user-facing features through structured test scenarios. Testing is integrated into development sprints using a mix of manual checks and automated tools to identify failures caused by inconsistent data flow or communication gaps between modules.

    Their services are tailored to enterprise and startup projects in industries like healthcare, logistics, and finance. Integration testing supports the broader delivery of scalable software solutions, ensuring system-level compatibility before production. SumatoSoft builds QA directly into the software lifecycle, helping teams prevent issues that surface only after components are merged or deployed into live environments.

     

    Key Highlights:

    • Integrates testing within software development sprints
    • Focuses on component interaction across APIs and services
    • Uses structured test scenarios to validate workflows
    • Works across sectors including healthcare and finance
    • Aligns QA with delivery of scalable, custom systems

     

    Services:

    • Integration testing
    • Manual and automated QA
    • Web and mobile app testing
    • Custom enterprise software testing
    • API and data layer validation
    • IoT and AI-based system testing
    • Support and post-launch maintenance testing

     

    Contact Information:

    • Website: sumatosoft.com
    • E-mail: info@sumatosoft.com
    • Facebook: www.facebook.com/sumatosoft
    • Twitter: x.com/SumatoSoft
    • LinkedIn: www.linkedin.com/company/sumatosoft
    • Address: One Boston Place, Suite 2602 Boston, MA 02108, United States
    • Phone: +18572390848
    18. Q-Pros

    18. Q-Pros

    Q-Pros delivers integration testing services that evaluate the communication between interconnected software components. Their process involves checking data transfer, functional interaction, and module compatibility within both frontend and backend systems. Tests are designed to detect issues such as broken interfaces, logic conflicts, and response failures that occur when individual parts of the software interact under load or real conditions.

    Their testing covers a variety of environments and platforms, including mobile, web, and enterprise software. Q-Pros also supports government, IT governance, and DevOps projects, embedding integration testing into broader QA and process alignment services. They apply both black-box and white-box approaches depending on the system under review, and offer performance and compliance testing to ensure full operational readiness.

     

    Key Highlights:

    • Focuses on integration reliability across platforms
    • Applies black-box, white-box, and gray-box testing methods
    • Supports DevOps pipelines and IT governance efforts
    • Covers mobile, web, and government-grade systems
    • Detects integration issues through structured interaction testing

     

    Services:

    • Integration testing
    • Functional and regression testing
    • Automated and performance testing
    • Mobile and usability testing
    • QA consultation and IT governance QA
    • Security, compliance, and localization testing
    • DevOps and continuous testing support

     

    Contact Information:

    • Website: q-pros.com
    • E-mail: usa@q-pros.com 
    • LinkedIn: www.linkedin.com/company/q-pros
    • Address: 5900 Balcones Drive STE 100 Austin, TX, 78731, USA
    • Phone: (+1) 512 876 8005 
    19. Abstracta

    19. Abstracta

    Abstracta provides integration testing services that focus on validating interactions between software components within complex applications. Their team uses a mix of manual and automated testing methods to confirm that modules, APIs, and third-party services communicate reliably during real-world operations. They aim to detect integration issues early in development to prevent breakdowns during production or deployment.

    Their testing approach is integrated with performance, security, and accessibility efforts, supporting development teams across sectors like e-commerce, healthcare, and finance. Abstracta includes integration testing as part of a broader QA strategy that also leverages test automation frameworks and custom tools. Their goal is to help engineering teams maintain application stability and avoid issues caused by disconnected or poorly integrated system elements.

     

    Key Highlights:

    • Validates API, module, and system interactions
    • Combines integration testing with performance and security QA
    • Works across industries including e-commerce, finance, and healthcare
    • Integrates testing into CI workflows for early defect detection
    • Builds custom tools and test strategies for flexible implementation

     

    Services:

    • Integration testing
    • Functional and test automation
    • Performance and security testing
    • Accessibility testing
    • QA strategy development
    • DevOps and CI support
    • Software development and AI-driven solutions

     

    Contact Information:

    • Website: abstracta.us
    • E-mail: hello@abstracta.us
    • Twitter: x.com/abstractaus
    • LinkedIn: www.linkedin.com/company/abstracta
    • Address: 1110 Brickell Ave, Suite 200, Miami, Florida 33131, USA
    • Phone: +1 415 745-3678
    20. QualityLogic

    20. QualityLogic

    QualityLogic offers integration testing services that focus on ensuring compatibility and communication between system components across various platforms. Their team works with APIs, mobile apps, and backend services to identify data inconsistencies, failed requests, and process-level integration problems. Their testing is commonly used in regulated industries or performance-critical environments such as IoT, streaming media, and digital accessibility.

    They support both agile and hybrid development workflows, offering onshore, offshore, or blended QA resources. Integration testing is delivered alongside functional, performance, and usability testing, forming part of a flexible QA approach. QualityLogic’s methods are adapted to client-specific requirements and include testing for legacy systems, smart energy protocols, and next-gen applications like AR/VR.

     

    Key Highlights:

    • Focuses on module interaction and communication across platforms
    • Supports integration testing in high-performance and regulated systems
    • Offers flexible onshore and hybrid testing models
    • Works with APIs, mobile, streaming, and IoT applications
    • Aligns testing with agile and legacy development practices

     

    Services:

    • Integration testing
    • Functional and usability testing
    • Performance and load testing
    • API and interoperability testing
    • AR/VR and IoT QA
    • Digital accessibility and WCAG compliance
    • QA consulting and test automation tools

     

    Contact Information:

    • Website: www.qualitylogic.com
    • E-mail: info@qualitylogic.com
    • Facebook: www.facebook.com/QualityLogic
    • Twitter: x.com/QualityLogic
    • LinkedIn: www.linkedin.com/company/qualitylogic
    • Address: 2245 First Street, Suite 103 Simi Valley, CA 93065, USA
    • Phone: (208) 424-1905

    Conclusion

    Integration testing plays a critical role in ensuring that software systems operate smoothly when different components, services, or modules are combined. The companies highlighted in this article offer structured and reliable integration testing services, each with its own approach, tools, and industry focus. Whether embedded in CI/CD pipelines or part of broader QA frameworks, their efforts help detect and resolve system-level issues early in the development lifecycle.

    Choosing the right partner depends on your specific project requirements, such as industry compliance, delivery timelines, or the need for automation. By working with experienced integration testing providers, teams can reduce risks, improve software stability, and maintain the quality expected in today’s fast-paced development environments.