Best QA Outsourcing Companies in the USA

At LenGreo, we specialize in QA outsourcing services tailored for U.S.-based companies looking to enhance the quality, reliability, and performance of their software. Our mission is to help businesses across industries streamline their testing processes, reduce time-to-market, and maintain flawless user experiences without the cost and complexity of growing an in-house QA team.

By integrating seamlessly with your internal operations, our expert QA engineers bring a results-driven, flexible approach to software quality assurance. From manual and automated testing to performance, usability, and security testing, we ensure your applications meet the highest standards across all platforms and use cases.

Whether you’re scaling a SaaS platform, launching a fintech app, or securing a healthcare solution, our QA services are structured to deliver precise outcomes aligned with your business objectives.

Hoofdzaken:

• QA teams embedded directly into your workflows
• Flexible, scalable outsourcing models
• Proven success supporting U.S. companies in SaaS, FinTech, Cybersecurity, and Healthcare
• Full transparency and ongoing communication
• Focused on quality, speed, and end-user satisfaction

Belangrijkste diensten:

• Website QA & Support
• Digital Transformation Support
• IT Consulting & Strategy Development
• Aangepaste webontwikkeling
• SEO, Paid Ads & Demand Generation
• Lead Generation & Appointment Setting

Contact- en sociale media-informatie:

• Website: Lengreo
• Email: hi@lengreo.com
• Phone: +31 686 147 566
• LinkedIn: Lengreo
• Instagram: @lengreo
• Twitter/X: @Lengreo

Our cases

SEO for BIM & VDC Services Provider

PPC For Adult Content Platform

Biological Age Blood Testing Kit

QASource is a software testing and quality assurance service provider based in California, with delivery centers located in India, Canada, and Mexico. They work with a range of organizations across sectors such as healthcare, finance, legal, and cloud services. Their teams are typically integrated into client environments and follow established processes to support ongoing development efforts.

The company offers a variety of testing services, including both manual and automated approaches. Their operating model focuses on adapting to changing project demands, and they support testing across commonly used tools and platforms. Their services are designed to align with each client’s specific workflow and technical setup.

Hoofdzaken:

• Delivery centers in multiple regions
• Experience across several industry sectors
• Team integration with client development processes

Belangrijkste diensten:

• Automated and manual software testing
• Mobile, API, and performance testing
• AI-enabled testing and blockchain testing
• Salesforce and cloud-based application testing
• QA consulting and analysis

Contact- en sociale media-informatie:

• Website: www.qasource.com
• Phone: +1.925.271.5555
• Email: info@qasource.com
• Address: 73 Ray St, Pleasanton, CA 94566
• LinkedIn: www.linkedin.com/company/qasource
• Facebook: www.facebook.com/qasource
• Twitter/X: x.com/qasource

ScienceSoft is a software quality assurance and testing services provider based in Texas, with operations supporting clients across various industries and project types. Their QA teams work with organizations on both short-term testing efforts and ongoing managed QA services. They offer services through different engagement models, including full-cycle QA outsourcing and support for multiple concurrent projects.

The company follows established software development methodologies and offers testing aligned with Agile, DevOps, and CI/CD workflows. Their teams handle both manual and automated testing, using tools such as Selenium, Appium, and Microsoft Coded UI Tests. They also support compliance-focused projects involving regulations like HIPAA and GDPR.

Hoofdzaken:

• Offers multiple outsourcing models for QA projects
• Aligns testing practices with industry-standard methodologies
• Supports both one-time and continuous QA engagements

Belangrijkste diensten:

• Manual and automated testing
• Performance, usability, and security testing
• QA consulting and test process improvement
• Testing for web, mobile, and desktop applications
• Compliance audits and pre-certification testing

Contact- en sociale media-informatie:

• Website: www.scnsoft.com
• Phone: +12143066837
• E-mail: contact@scnsoft.com
• Address: 5900 S. Lake Forest Drive, Suite 300, McKinney, Dallas area, TX-75070
• LinkedIn: www.linkedin.com/company/sciencesoft
• Facebook: www.facebook.com/sciencesoft.solutions
• Twitter/X: x.com/ScienceSoft

Zymr is a software engineering firm that offers QA outsourcing services to support organizations across sectors such as healthcare, finance, retail, and cloud technologies. Their approach focuses on integrating testing processes into existing development pipelines, with an emphasis on aligning QA with specific industry demands. Their teams are based in the United States and India, providing global delivery capability for a range of digital testing needs.

The company provides testing services for applications at various stages of the development cycle, including early-stage evaluations, ongoing functional checks, and post-deployment performance testing. They support scaling of QA operations based on project workload and offer specialized testing for areas like security, user experience, and system integration.

Hoofdzaken:

• Offers QA support tailored to specific industries and technical environments
• Combines U.S.-based leadership with development teams in India
• Supports scaling and flexible team deployment across project phases

Belangrijkste diensten:

• Functional and regression testing
• Test automation and performance testing
• Security, API, and integration testing
• UI/UX and user acceptance testing
• Data migration and network testing

Contact- en sociale media-informatie:

• Website: www.zymr.com
• Phone: +1-408-884-7100
• Email: hello@zymr.com
• Address: 33 Irving Pl, New York, NY 10003, United States
• LinkedIn: www.linkedin.com/company/zymrinc
• Facebook: www.facebook.com/zymrcloud
• Instagram: www.instagram.com/zymrcloud
• Twitter/X: x.com/ZymrCloud

Bigscal is a software development company that provides QA outsourcing services for businesses seeking to manage and scale their software testing efforts. With an office in the United States, they support clients across various industries including healthcare, finance, and retail, offering testing solutions tailored to different stages of the software development lifecycle.

Their QA services cover a range of engagement models, from single-product testing to multi-product and full-cycle QA outsourcing. The company uses widely adopted testing frameworks and tools to carry out automated and manual tests, while their structured approach includes transition planning, service delivery, and ongoing process improvement.

Hoofdzaken:

• Offers remote QA outsourcing with U.S. presence
• Supports various project scales and testing needs
• Follows a structured QA process with defined stages

Belangrijkste diensten:

• Functional, regression, and performance testing
• Test automation using tools like Selenium and Appium
• API and integration testing
• User acceptance and UI/UX testing
• Security and data migration testing

Contact- en sociale media-informatie:

• Website: www.bigscal.com
• Phone: +91 7862861254
• Email: contact@bigscal.com
• Address: 1915, 447 Broadway, 2nd Floor, New York, US, 10013
• LinkedIn: www.linkedin.com/company/bigscaltechnologiespvtltd
• Facebook: www.facebook.com/bigscal
• Instagram: www.instagram.com/bigscal.technologies
• Twitter/X: x.com/BigscalTech

ImpactQA is a software testing and quality assurance outsourcing company with offices in Houston and New York. They provide QA services through distributed teams, supporting clients across various industries and project sizes. Their approach emphasizes aligning testing strategies with specific business and technical requirements while working within standard software development models such as Agile, Waterfall, and DevOps.

Their QA outsourcing services include support for both individual products and broader transformation initiatives. They use a range of tools for automation, performance monitoring, and bug tracking, and offer continuous testing support across web, mobile, desktop, and SaaS applications.

Hoofdzaken:

• U.S.-based with offshore and nearshore delivery capabilities
• Offers both full-cycle QA and targeted testing services
• Utilizes popular test tools and supports multiple development models

Belangrijkste diensten:

• Functional, regression, and performance testing
• Test automation and mobile app testing
• Security, usability, and compatibility testing
• API and cloud testing
• Custom QA strategy development and TaaS (Testing-as-a-Service) model

Contact- en sociale media-informatie:

• Website: www.impactqa.com
• Phone: +1 (347) 268-6188
• Email: solutions@impactqa.com
• Address: 12650 Crossroads Park Dr, Suite 100, Houston, Texas, 77065
• LinkedIn: www.linkedin.com/company/impactqa-it-services-pvt-ltd
• Facebook: www.facebook.com/ImpactQA
• Instagram: www.instagram.com/impactqa
• Twitter/X: x.com/Impact_QA

ValueCoders is a technology services provider offering software testing and QA outsourcing solutions to businesses across different industries. With offices in the United States, they support startups, enterprises, and digital agencies through structured QA engagement models. Their services are designed to align with a variety of project needs, from single-product QA to organization-wide testing transformations.

Their QA process follows a phased approach that includes transition planning, service delivery, and ongoing process evolution. ValueCoders provides testing services using commonly adopted tools and frameworks, supporting test automation and integration within CI/CD environments. Their outsourcing model also includes options for dedicated teams and flexible engagement plans.

Hoofdzaken:

• U.S. presence with global service capability
• QA outsourcing available for single or multiple projects
• Follows a structured delivery model with customizable engagement

Belangrijkste diensten:

• Functional, regression, and performance testing
• Test automation and security testing
• Compatibility and user acceptance testing
• QA process consulting and TCoE setup
• Testing for web, mobile, and enterprise applications

Contact- en sociale media-informatie:

• Website: www.valuecoders.com
• Phone: +1 628 600 5055
• Email: sales@valuecoders.com
• Address: 5900 Balcones Drive, STE 100, Austin , TX 78731, USA
• LinkedIn: www.linkedin.com/company/valuecoders
• Facebook: www.facebook.com/ValueCoders
• Instagram: www.instagram.com/valuecodersofficial_
• Twitter/X: x.com/ValueCoders

Devox Software is a technology services company that provides QA outsourcing and software testing services to businesses in the United States, Western Europe, and the Middle East. They support organizations through a variety of engagement models, including short-term QA projects, dedicated testers, and full offshore QA teams.

Their services include both manual and automated testing, covering areas such as integration, behavior-driven, and end-to-end testing. Devox Software follows a structured QA process that aligns with different development stages, offering flexible cooperation options and access to QA engineers with expertise across a wide range of technologies.

Hoofdzaken:

• Offers flexible engagement options including dedicated testers and part-time specialists
• U.S. office provides accessible communication and project oversight
• Supports testing across full development lifecycle and multiple tech stacks

Belangrijkste diensten:

• Manual and automated software testing
• Integration, unit, and end-to-end testing
• QA for mobile, web, and enterprise applications
• Behavior-driven and performance testing
• QA team setup and support for offshore delivery models

Contact- en sociale media-informatie:

• Website: devoxsoftware.com
• Email: info@devoxsoftware.com
• Address: 17000 N Bay Rd, unit 508, 33160, Sunny Isles Beach, FL
• LinkedIn: www.linkedin.com/company/devox-software
• Facebook: www.facebook.com/devoxsoftware
• Twitter/X: x.com/DevoxSoftware

Codoid provides QA outsourcing and software testing services for businesses seeking external support in launching, maintaining, and managing software quality. They serve a global client base, including companies in the United States, across industries such as telecom, education, manufacturing, and technology. Their services are structured to integrate with client teams or operate as standalone QA partners, offering flexibility based on project requirements.

Codoid’s testing capabilities include both manual and automated approaches, covering mobile, performance, API, and accessibility testing. They also offer specialized testing for areas like eLearning and data analytics. Their delivery models range from extended team arrangements to fully managed services, providing U.S. businesses with scalable, cost-effective quality assurance solutions.

Hoofdzaken:

• Serves clients in the U.S. and other global markets
• Offers both integrated team support and full QA management
• Experience across mobile, analytics, telecom, and education sectors

Belangrijkste diensten:

• Manual and automation testing
• Mobile app and performance testing
• Accessibility and API testing
• Data analytics and eLearning testing
• Regression and web service testing

Contact- en sociale media-informatie:

• Website: codoid.com
• Phone: +1 833 (685) 6161
• Email: info@codoid.com
• Address: 539 W. Commerce St #428, Dallas, TX – 75208.
• LinkedIn: www.linkedin.com/company/codoid-qacompany
• Facebook: www.facebook.com/codoid.innovations
• Instagram: www.instagram.com/codoid.innovations
• Twitter/X: x.com/codoid

EPAM Startups & SMBs offers QA outsourcing and software testing services designed to support businesses in the United States and globally. As part of EPAM Systems, they provide scalable QA solutions tailored to startups, small and medium-sized businesses, and enterprise clients. Their services cover the full software development lifecycle, with flexible models that adapt to evolving project needs.

Their quality assurance process includes functional, performance, security, usability, and compliance testing. QA services can be delivered through full-cycle engagement or as team augmentation, using a wide range of testing tools and technologies. With offices in the U.S. and a global team of professionals, they help businesses improve product quality, speed up delivery, and reduce operational costs.

Hoofdzaken:

• U.S.-based presence with global delivery capabilities
• Offers both full-cycle QA outsourcing and team augmentation
• Serves startups and SMBs across multiple industries

Belangrijkste diensten:

• Functional, performance, and security testing
• Usability, compatibility, and compliance testing
• Test automation using tools like Selenium, Appium, and TestNG
• Continuous integration and defect tracking
• QA consulting and prototype testing

Contact- en sociale media-informatie:

• Website: startups.epam.com
• Address: 275 Seventh Ave, 20th Floor, Suite 2002, New York, NY 10001, USA

Aegis Softtech provides QA outsourcing services for businesses seeking to improve software quality across web, desktop, and mobile platforms. With clients in the United States and other global markets, they support a range of industries including fintech, healthcare, eCommerce, logistics, and enterprise software. Their services help companies test applications at every stage of development through customized QA strategies.

The company offers both manual and automated testing and supports projects from planning through execution and final reporting. Their team conducts a wide array of tests, such as functional, non-functional, compatibility, and performance testing. Aegis emphasizes flexible delivery, dedicated QA teams, and detailed test documentation to support smooth product launches.

Hoofdzaken:

• Serves U.S. businesses and international clients across multiple sectors
• Offers flexible QA models tailored to different project needs
• Covers full QA lifecycle from planning to delivery and reporting
  

Belangrijkste diensten:

• Website, mobile app, and desktop application testing
• Manual and automated testing
• Functional and non-functional testing
• ERP and enterprise software testing
• Mobile compatibility and user interface testing

Contact- en sociale media-informatie:

• Website: www.aegissofttech.com
• Phone: 1800 889 7020
• Email: info@aegissofttech.com
• Address: 80 Broad Street, 5th and 6th Floors, New York City, NY 10004, USA
• LinkedIn: www.linkedin.com/company/aegis-softtech
• Facebook: www.facebook.com/AegisSoftTech
• Instagram: www.instagram.com/aegissofttechusa
• Twitter/X: x.com/AegisSoftTech

BairesDev provides QA outsourcing and software testing services to businesses in the United States and worldwide. With access to engineering talent from across Latin America, they deliver flexible QA solutions that integrate with existing development workflows. Their services support various software testing needs, from small QA engagements to fully managed testing teams for complex systems.

Their approach includes both manual and automated testing across web, mobile, and enterprise applications. BairesDev also incorporates AI and machine learning in automated testing, offering predictive analytics, self-healing scripts, and load simulations. Services focus on ensuring security, usability, performance, and functionality throughout the development lifecycle.

Hoofdzaken:

• U.S.-based operations with QA talent sourced from Latin America
• Offers both manual testing and AI-driven automation solutions
• Focus on scalability, cross-platform compatibility, and security

Belangrijkste diensten:

• Functional and regression testing
• AI/ML-driven automated testing
• API, mobile, and web testing
• Security, performance, and usability testing
• Manual exploratory testing and accessibility evaluation

Contact- en sociale media-informatie:

• Website: www.bairesdev.com
• Phone: +1 (408) 478-2739
• Address: 1401 Chain Bridge Road, McLean, VA, USA
• LinkedIn: www.linkedin.com/company/bairesdev
• Facebook: www.facebook.com/bairesdev
• Instagram: www.instagram.com/bairesdev
• Twitter/X: x.com/bairesdev

Beyond Key is a software services company offering QA outsourcing solutions to businesses in the United States and globally. With offices in Indiana and Illinois, they support organizations across sectors like healthcare, finance, retail, education, manufacturing, and technology. Their QA services are designed to help companies streamline testing, improve software reliability, and reduce time-to-market without compromising quality.

Their team delivers testing around the clock using a combination of onshore and offshore resources. Beyond Key provides functional, performance, security, usability, and automation testing, tailoring solutions to match client requirements. They use modern testing tools and methodologies to ensure high coverage, scalability, and cost-efficiency.

Hoofdzaken:

• U.S.-based offices with global testing support
• Industry experience across healthcare, finance, retail, and more
• Offers QA services with scalable engagement options

Belangrijkste diensten:

• Functional, security, and performance testing
• Mobile app and compatibility testing
• Test automation and manual QA
• Usability and accessibility testing
• Customized QA strategy and reporting

Contact- en sociale media-informatie:

• Website: www.beyondkey.com
• Phone: +1-954.317.3944
• Email: contact@beyondkey.com
• Address: 201 N Illinois Street, 16th Floor – South Tower, Indianapolis, IN 46204
• LinkedIn: www.linkedin.com/company/beyond-key-systems-pvt-ltd
• Facebook: www.facebook.com/beyondkeySystems
• Twitter/X: x.com/keybeyond

BIT Studios is a software development company that provides software testing and QA outsourcing services to businesses, including those based in the United States. The company offers testing support for web, mobile, desktop, and SaaS applications across a range of industries such as healthcare, finance, insurance, logistics, and manufacturing.

QA services are delivered through various engagement models, including dedicated QA teams, staff augmentation, and project-based arrangements. The company utilizes a wide range of testing tools and approaches to support functional, performance, and security testing requirements.

Hoofdzaken:

• Offers QA outsourcing services to U.S. businesses
• Provides solutions for multiple industries and software types
• Flexible collaboration options based on client needs

Belangrijkste diensten:

• Functional, regression, and usability testing
• Automated and manual software testing
• API, mobile, and web application testing
• Security and accessibility testing
• QA audits and process implementation
• Continuous integration and test case development

Contact- en sociale media-informatie:

• Website: www.bitstudios.com
• Phone: 469-707-8782
• Email: info@bitstudios.com
• Address: 700 Central Expy S #400, Allen, Dallas area, TX 75013
• LinkedIn: www.linkedin.com/company/bit-studios
• Twitter/X: x.com/bitstudios

a1qa is a QA outsourcing provider offering software testing services for web, mobile, desktop, and cloud applications. The company supports organizations across a wide range of industries by delivering tailored quality assurance solutions that align with business objectives. a1qa works with U.S.-based businesses and applies structured, transparent QA practices to help optimize software quality.

Engagement models include remote, on-site, and hybrid QA teams, and service offerings span functional, performance, and security testing, among others. a1qa also provides consulting, managed QA, and continuous testing support.

Hoofdzaken:

• Provides QA outsourcing for companies in the U.S.
• Offers flexible collaboration models to suit business needs
• Delivers full-cycle and specialized QA services

Belangrijkste diensten:

• Functional and performance testing
• Security and compatibility testing
• Test automation and continuous testing
• QA consulting and managed QA
• Testing for embedded, IoT, and blockchain applications

Contact- en sociale media-informatie:

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