Scan the leading custom software development companies in the UK that build bespoke solutions and offer specialized software services for various verticals. Compare their portfolios, reviews, expertise, budget, team size and more to find the right team for your next project.

We Vetted The Best United Kingdom Software Development Firms For You

11 Companies - Rankings updated: September 06, 2026

We evaluate every agency on DesignRush according to expertise credentials and client satisfaction ratings. Some placements are sponsored.

Expertise
Arts
Budget
Sort by: Number of Reviews
United Kingdom × Arts × Sort by: Number of Reviews × Clear Filters

  • Altar.io

    Custom Product & Software Development Focused On Your Success

    Altar.io is dedicated to building user-focused digital solutions with a co-founder mindset. Our unparalleled skills in software creation ensure rapid, lean development and transparent collaboration. We deliver precise, market-ready products that empower clients to innovate and succeed...

    Top Services:

    • Software Development
    • Mobile App Development
    • AI Development
    • Product Design
    • UI/UX Design
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    9 Projects Listed

    Altar.io Services

    • Software Development
    • Mobile App Development
    • AI Development
    • Product Design
    • UI/UX Design
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Loan Lynx
    • Movie Me!
    • Krepling
    • Ovvio
    • Fave
    • Legartis
    • McKinsey & Co
    • Audio Test Kitchen
    • QuartalFS
    • Apiax
    Data sourced from the agency's DesignRush profile

    Altar.io Reviews & Testimonials

    • Dudley Gould ACA
      Dudley Gould ACA Founder at Circit
      4.8 ★

      Fintech Review from Dudley Gould ACA

      What set's Alatar.io apart is their team. They are not only experienced product managers, software developers and designers but have a lot of experience building and helping startups. Whilst Altar.io is responsible for all of the tech development, a huge amount of my time with the Altar.io team is actually spent working on strategy, marketing and business development. I highly recommend working with Altar.io.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit Website View Profile
    4.2 4.2 (1)
    5.0 5.0 (1)

  • Ocean View Games

    Unity Engineering For The Games Industry

    Ocean View Games is a London-based Unity game development studio led by former Jagex engineers. We specialize in co-development and staff augmentation, mobile porting and performance optimization, multiplayer and networking engineering, and educational game development. Our team has shipped titles for Jagex...

    Top Services:

    • Software Development
    • Mobile App Development
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed

    Ocean View Games Services

    • Software Development
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Domi Online
    • Nova Blast
    • Pocket Factory
    • The Language Conservancy
    Data sourced from the agency's DesignRush profile

    Ocean View Games Reviews & Testimonials

    • Harley Swann
      Harley Swann Lead Developer / Developer at Domi Game Studios
      5.0 ★

      Software Development Review from Harley Swann

      We partnered with Ocean View Games to support development of Domi Online, a large-scale MMORPG requiring strong performance optimization and scalable multiplayer systems. Acting as our Lead Engineering partner, they took ownership of core gameplay systems, multiplayer networking, and technical scalability. Leveraging their experience from Jagex working on RuneScape, they designed systems capable of supporting high concurrent player counts and complex in-game interactions. Their work significantly improved network performance, stability, and deployment reliability, helping us run smoother playtests and build a production-ready multiplayer stack. Project management was excellent throughout, with clear milestones, reliable delivery, and strong communication. Overall, Ocean View Games delivered outstanding technical expertise and remain a trusted engineering partner!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit Website View Profile
    4.3 4.3 (1)

  • Digital Republic

    Digital transformation and mobile solutions.

    Digital Republic empowers businesses by harnessing the potential of web and mobile applications, cloud commerce, AI, and machine learning technologies. Our comprehensive approach ensures that our clients stay ahead in the digital landscape, driving innovation and achieving sustainable growth...

    Top Services:

    • Digital Strategy
    • Software Development
    • Digital Services
    • eCommerce Development
    • Mobile App Development
    • Show more
    Location
    Chichester, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $75/hr
    Minimal Budget
    $10,000 - $25,000

    Digital Republic Services

    • Digital Strategy
    • Software Development
    • Digital Services
    • eCommerce Development
    • Mobile App Development
    • Web Design
    • Web Development
    • UI/UX Design
    • Cloud Consulting
    • IoT
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Wecre8
    • Camsure Home Surveys
    • Fresh Photo House
    • UK Harbour Masters
    • Bloomsbury Square
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • Tayfusion

    An ethical web and database solutions provider

    Tayfusion is an award-winning Database Design & Digital Transformation Consultancy. We are an ethical solutions provider. We play fair and never act in a way that is contrary to the best interests of our clients...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Development
    • ERP Consulting
    • Big Data Analytics
    • Show more
    Location
    Dundee, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $140/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed

    Tayfusion Services

    • Software Development
    • Mobile App Development
    • Web Development
    • ERP Consulting
    • Big Data Analytics
    • DevOps Consulting
    • IoT
    • CRM Consulting
    • eCommerce Development
    • Digital Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Paths for All
    • Housing Options Scotland
    • Tayside Contracts
    • Air Service Training
    Data sourced from the agency's DesignRush profile

    Tayfusion Reviews & Testimonials

    • Jo Stewart
      Jo Stewart Review from Google
      5.0 ★

      Jo Stewart's Review Sourced from Google

      Greig was very helpful. He offered us a great deal and answered all of our questions fully. Would definitely recommend

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit Website View Profile
    5.0 5.0 (1)

  • Corporation Pop

    Corporation Pop - Creating Deeply Engaging Interactive Experiences

    We create deeply engaging interactive experiences that connect you with your customers...

    Top Services:

    • UI/UX Design
    • Web Development
    • Web Design
    • VR/AR
    • Mobile App Development
    • Show more
    Location
    Manchester, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $75/hr
    Minimal Budget
    $25,000 - $50,000

    Corporation Pop Services

    • UI/UX Design
    • Web Development
    • Web Design
    • VR/AR
    • Mobile App Development
    • Branding
    • Digital Services
    • Graphic Design
    • Software Development
    • WordPress Website Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • The Cream Group
    • Channel 4
    • UNILAD
    • Future PLC
    • 14-18NOW
    Data sourced from the agency's DesignRush profile

    Corporation Pop Reviews & Testimonials

    • Andrew Owen
      Andrew Owen Review from Google
      5.0 ★

      Andrew Owen's Review Sourced from Google

      Corporation Pop have been a long time collaborator of mine here at Cream. We've worked together across design and digital and I can't recommend them highly enough. If you're looking to up your game in any of these areas, get in touch with them, you won't regret it!

    • Frank Hough
      Frank Hough Review from Google
      5.0 ★

      Frank Hough's Review Sourced from Google

      Dan and the team at Corporation pop have reinforced our faith in humanity. Their belief in what Roadbot can achieve has been backed up with the hours and hours of work they've put into the project on a pro bono basis. Pop possess all of the moral values our charity wants to instill in the drivers of the future. Their compassion and willingness to help us make the generational change so desperately needed to make Britains roads safer goes above and beyond anything we would dare to ask. Frankie and Neeve's Road safety academy will be forever greatful and look forward to working with the guys for many years. We are truly humbled by their generosity and proud to share our journey to safer roads with them.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit Website View Profile
    5.0 5.0 (8)

  • wearegoat

    We make websites.

    wearegoat is a design studio founded in 2012, by Paul Attard...

    Top Services:

    • Web Design
    • Web Development
    • Software Development
    Location
    London, United Kingdom
    Number of Employees
    Under 49

    wearegoat Services

    • Web Design
    • Web Development
    • Software Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Cosie Studio
    • Bridgette
    • Fondazzjoni HELA
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • blockproof.

    Your Bespoke Key to the Blockchain.

    Blockproof is a premier blockchain development and consulting agency dedicated to navigating complex business challenges. The firm provides tailored solutions for investment, service integration, and new project development, ensuring clients stay ahead in the evolving blockchain ecosystem. Blockproof's...

    Top Services:

    • Blockchain
    • Software Development
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $300/hr
    Minimal Budget
    $25,000 - $50,000

    blockproof. Services

    • Blockchain
    • Software Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • LUXLOCK
    • CITIZEN-T
    • MOD
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • FiftyFive Technologies UK

    Scale faster with high-performing software and digital products

    FiftyFive Tech UK is a global, remote-first software development company, powered by a network of highly skilled senior engineers. We deliver cost-effective, high-quality solutions at speed whether you need a fully outsourced team, a tailored software project, or help launching your first MVP. Our team...

    Top Services:

    • Software Development
    • Mobile App Development
    • AI Development
    Location
    London, United Kingdom
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000

    FiftyFive Technologies UK Services

    • Software Development
    • Mobile App Development
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Qopla
    • amilis
    • Aposto
    • Viable
    • The Training Marketplace
    Data sourced from the agency's DesignRush profile

    FiftyFive Technologies UK Reviews & Testimonials

    • TRAINING MARKETPLACE THE
      TRAINING MARKETPLACE THE Review from Google
      5.0 ★

      TRAINING MARKETPLACE THE's Review Sourced from Google

      We are really pleased with the quality of the development team. They were quick to learn our product, are extremely responsive and very productive. Add to that they provide great ideas and work flexibly (when we change priorities) we could not ask much more. Miles better than our previous experience.

    • Yasmin Baba
      Yasmin Baba Review from Google
      5.0 ★

      Yasmin Baba's Review Sourced from Google

      As an early stage start-up founder, I loved the flexibility & support that 55Tech gave me as we developed a whole app from scratch. Great developers & great management team! Would recommend to anyone looking for a reliable developer agency.

    • Ross Hidge
      Ross Hidge Review from Google
      5.0 ★

      Ross Hidge's Review Sourced from Google

      Max and Jonny have been brilliant from start to finish of the process, from signing the contracts up to now where we are beginning to see first iterations of the product. The development team have worked meticulously to make sure the product specification was achievable for this rather complex project and have exceeded expecations in some aspects of development. We are now mid/late way through development and the work has been fantastic throughout with the MVP looking like it will surpass my expecations.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit Website View Profile
    5.0 5.0 (3)

  • Red Eagle Tech

    Bespoke software solutions for SMEs to work smarter and win more.

    At Red Eagle Tech we provide bespoke software development services for small and medium enterprises. Our solutions help SMEs work smarter, win more and dominate their industry. Friendly London-based team, fixed-price projects, no contract tie-ins...

    Top Services:

    • Software Development
    • Mobile App Development
    • IT Services
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $165/hr
    Minimal Budget
    Under $1,000

    Red Eagle Tech Services

    • Software Development
    • Mobile App Development
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • NHM
    • SOS Synergy
    • Jess Ashby Art
    Data sourced from the agency's DesignRush profile

    Red Eagle Tech Reviews & Testimonials

    • Veronica Korczak
      Veronica Korczak Review from Google
      5.0 ★

      Veronica Korczak's Review Sourced from Google

      Whilst integrity and veracity are in short supply these days, Red Eagle Tech has it in spades. You can trust these guys. I bought my Microsoft 365 licences from them, and they went out of their way to make the transactions as smooth as possible.

    • Jeff Stropky
      Jeff Stropky Review from Google
      5.0 ★

      Jeff Stropky's Review Sourced from Google

      Best business I’ve ever dealt with, these guys know their stuff. 10/10 service, I couldn’t be happier.

    • Ahjaimee
      Ahjaimee Review from Google
      5.0 ★

      Ahjaimee's Review Sourced from Google

      Working with Kat, Stef, and the whole team at Red Eagle Tech has been a brilliant experience from start to finish. They’ve supported us across multiple digital projects, and every time they’ve delivered solutions that genuinely make our business more efficient while also saving us money. Whenever we bring them a new idea, they approach it with total openness, fresh thinking, and a real understanding of what we’re trying to achieve. They grasp the assignment straight away and always offer smart suggestions that strengthen the final result. Everything with them is transparent, communication, process, and especially pricing. You can tell they know exactly what they’re doing, and their expertise shows in how smoothly each project runs. On top of that, they’re incredibly easy to work with, which makes the whole experience even better.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit Website View Profile
    5.0 5.0 (5)

  • Bass Media Group

    Scaling Brands With Strategy, Design & Performance.

    Bass Media Group is a performance focused digital agency helping brands turn traffic into real revenue. We specialise in high- converting Shopify and WordPress experiences, combining strategy, clean UX, and data-driven optimisation. From improving site speed to simplifying checkout flows, we fix what actually...

    Top Services:

    • Web Design
    • eCommerce Development
    • Web Development
    • WordPress Website Design
    • SEO
    • Show more
    Location
    Kingston upon Hull, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    4 Projects Listed

    Bass Media Group Services

    • Web Design
    • eCommerce Development
    • Web Development
    • WordPress Website Design
    • SEO
    • Digital Marketing
    • Social Media Marketing
    • Software Development
    • IT Compliance Solution
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Swiss Beauty
    • Swiss Nutrition Academy
    • Connect Recruitment
    • Artista international
    • Swiss Fashion Academy
    • Karviva
    • Cardwells
    • Starplan Direct
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile
    5.0 5.0 (1)

  • Email Squad

    From First Hello To Lifelong Customers

    Email Squad is a specialist email design and development studio helping brands and agencies create emails people actually want to open. We design and build campaigns, automated flows, templates and complete email systems across platforms including Klaviyo, Mailchimp and HubSpot. From one-off campaigns to...

    Top Services:

    • Graphic Design
    • Creative Services
    • Branding
    • Digital Services
    • Design Services
    • Show more
    Location
    Northampton, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    Under $1,000

    Email Squad Services

    • Graphic Design
    • Creative Services
    • Branding
    • Digital Services
    • Design Services
    • Digital Strategy
    • Web Design
    • Email Marketing
    • Software Development
    • CRM Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • FCS
    • Dash
    • Capital
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

Related Services

Software Development Specialties in the United Kingdom

Software Development Companies by City

Popular Services

Why Companies Trust DesignRush

Rated 4.8 on Google and 4.7 on Trustpilot, DesignRush Agency Directory is a reliable resource for finding custom software development companies in the United Kingdom. We owe this to our executive selection team, which follows a strict screening process when featuring agencies on the platform, assessing key performance indicators, like portfolio, client reviews, and industry reputation.

DesignRush rating logos on Trustpilot and Google

Learn more about DesignRush Agency Ranking Methodology.

Sources

DesignRush sustains a directory of over 40,000 agencies categorized by service category, location, expertise, and reviews. We build our database in two ways:

  • Our dedicated team of agency experts actively searches the web for top-performing companies. We then pull information from their websites, online presence, and client testimonials to verify their status and qualifications prior to listing.
  • The agencies listed get notified of their profiles on the website and they can choose to claim it or not, which suggests their availability for more collaborations.

Agencies can also reach out to DesignRush and must go through the verification process prior to being listed.

Frequently Asked Questions

What are the core specializations of custom software development companies in the United Kingdom?

The core specializations of custom software development companies in the United Kingdom generally center around web/mobile app development and advanced digital technologies. Their expertise extends to AI-powered products, cloud solutions (especially DevOps), feature enrichment, and cybersecurity.  

Overall, they provide end-to-end digital transformation solutions and engineer custom platforms and systems that drive competitive advantage and business growth across industries. 

How much do software development services cost in the UK?

The cost for software development services in the UK ranges from £25,000 to £120,000 for small businesses. In contrast, large enterprises undertaking extensive digital transformation or building sophisticated, bespoke systems should anticipate costs starting at £80,000 and potentially exceeding £500,000. 

For startups or businesses aiming to validate a concept, the initial cost is considerably lower. A minimum viable product (MVP) or a proof-of-concept generally falls within the £5,000 to £30,000 range. The final price is ultimately determined by the project's complexity, the chosen technology stack, the developers’ experience, and the geographical location of the service provider, which impacts their hourly or daily rates. 

How do I choose the right United Kingdom software development firm?

To choose the right United Kingdom software development firm, begin by evaluating its portfolio and case studies to make sure they have experience in your required technology stack and niche. Inquire about its process and team structure, to make sure they follow an iterative methodology and that the core development team will be dedicated and accessible for regular communication.  

Finally, prioritize a company with good reviews that reflect a track record of robust post-launch support and good collaboration throughout the project. 

Do software development companies provide ongoing support?

Yes, software development companies do provide ongoing support, maintenance, and updates after the product launch. This post-launch service is important for fixing bugs, maintaining security, adapting to changing user needs, and making sure the software remains stable and competitive. 

How do custom software development companies in the United Kingdom handle project revisions?

Custom software development companies in the United Kingdom predominantly handle project revisions through the Agile methodology. This involves breaking the project into short, iterative sprints, allowing the client to provide feedback and request necessary revisions at the end of each cycle.  

This flow is intended to minimize risk and keep the final product aligned with the envisioned concept, rather than waiting until the end for a major change. 

Latest Trends Related to Software Development

Onshore vs offshore software development
Software Development

Onshore vs. Offshore Software Development Company: Which One Is a Better Choice?

2,545
Questions To Ask a Software Development Agency
Software Development

10 Questions To Ask a Software Development Agency Before Hiring

2,362
In-House vs. Outsourcing Software Development
Software Development

In-House vs. Outsourcing Software Development: What to Choose for Your Company

2,674

Receive Free Proposals

For your project

1

Specify your budget, timeline and project requirements

2

Our experts curate a list of up to 5 most qualified candidate agencies

3

We connect you with them so you can choose the most suitable partner

Specify your requirements