Top Enterprise App Development Companies in the UK

Building enterprise applications has become less about keeping up with trends and more about creating the systems that hold an organisation together. In the UK, some of the most experienced software firms are helping enterprises replace clunky legacy platforms with scalable, well-integrated apps that actually reflect how their businesses run. From handling complex data flows to automating routine processes, these apps sit at the core of modern operations.

In this overview, we’ll look at the top companies shaping enterprise app development in the UK, what they bring to the table, and why their approaches stand out. If you’re weighing up whether to commission a new solution or modernise what you already have, these firms offer a useful snapshot of how the UK market is tackling enterprise software challenges today.

1. LenGreo

At Lengreo, we support enterprise clients in the UK with a range of services that include application development, but our focus often starts at the intersection of digital marketing and custom web platforms. When enterprise organisations need systems that not only reflect their business logic but also help generate leads, manage outreach, or optimise marketing funnels, we step in to deliver tailored web development solutions. These projects often involve a full discovery phase, UI/UX design, back-end development, and long-term support.

We also take on work where marketing and tech overlap. This includes building and optimizing websites as part of broader enterprise digital strategies or integrating systems that enable better reporting, outreach, or conversion. While we’re not a traditional enterprise software vendor, we offer scalable website development and marketing tech solutions that fit well within complex B2B environments.

Key Highlights:

Experience working with enterprise-level B2B clients across the UK and Europe
Focus on integrated tech and marketing projects, not just development
Emphasis on research, UX design, and long-term support
Combines web development with lead generation, SEO, and outreach
Involvement in strategic planning, not just implementation

Services:

Website development for enterprise and B2B use cases
UX research, prototyping, and interface design
Web-based system implementation with post-launch QA
SEO audits and keyword strategies
Paid ads (PPC, LinkedIn, Meta) integration with web platforms
Lead generation tools and outreach systems for sales teams
Content-driven web architecture (blogs, landing pages, media listings)

Contact Information:

Website: Lengreo
Contact Email: hi@lengreo.com
Phone Number: +31 686 147 566
LinkedIn: Lengreo
Twitter: @Lengreo
Instagram: @lengreo

Our cases

SEO for BIM & VDC Services Provider

PPC For Adult Content Platform

Biological Age Blood Testing Kit

2. TatvaSoft UK

TatvaSoft UK provides enterprise application development services for organisations with diverse needs, offering support from planning to maintenance. Their work spans both large-scale internal systems and customer-facing platforms, developed using a wide range of backend and frontend technologies. They tend to work with clients across sectors like finance, logistics, healthcare, and retail, developing software that’s aligned with each industry’s structure and compliance requirements.

They also provide dedicated development teams, which clients often use for long-term projects or as support for existing digital operations. Their model covers full-cycle development with an agile approach, often integrating cloud-native architecture and automation. The team usually collaborates with enterprises to modernise outdated systems or build custom applications that support internal workflows or customer management.