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

6 Companies - Rankings updated: September 07, 2026

DesignRush evaluates each agency using expert assessment and client feedback to inform your choices. Some featured agencies have paid placements.

Expertise
Other
$10,000 - $25,000
Sort by: Sponsored
United Kingdom × Other × $10,000 - $25,000 × Clear Filters

  • Antler Digital

    We Build Solutions.

    We help early stage startups, and small businesses develop digital solutions. We specialise in building bespoke SaaS solutions, workflow integrations, custom internal tools or spinoff products...

    Top Services:

    • Web Development
    • Web Design
    • UI/UX Design
    • Software Development
    • Digital Services
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $120/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    5 Projects Listed

    Antler Digital Services

    • Web Development
    • Web Design
    • UI/UX Design
    • Software Development
    • Digital Services
    • Branding
    • Digital Marketing
    • Digital Strategy
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • ofi
    • deZaan
    • Wiserfunding
    • One Tribe
    • Knorr
    • Label LIVE
    • World Olympics Association
    Data sourced from the agency's DesignRush profile

    Antler Digital Reviews & Testimonials

    • Jeremy Taylor
      Jeremy Taylor CTO at Wiserfunding
      5.0 ★

      Software Development Review from Jeremy Taylor

      My first and best decision at Wiserfunding was to outsource the UX, Design, Development and Support for my flagship business critical online platform to Antler. Since 2021 they have provided an excellent service not just with writing the code but in helping design and shape the product. They have also helped us out with the website, SEO and AI.

    • Alexi Yovanoff
      Alexi Yovanoff Company Director at SportsIcon
      5.0 ★

      Web Development Review from Alexi Yovanoff

      When Director at SportsIcon we used Antler on a number of projects. I can't recommend them enough - extremely professional, responsive, and clearly know what they are doing.

    • Ellie Collins
      Ellie Collins Co-Founder and CEO at Synthesis Health
      5.0 ★

      Web Development Review from Ellie Collins

      After working with Antler Digital on my personal website as a freelancer, I knew I could trust the company to deliver an expertly designed website when I founded my new company. The overall branding, design, website UX and development results exceeded my expectations, and the team was a pleasure to work with - responsive, adaptive and creative throughout the project. I'm delighted with the website, and I would highly recommend Antler Digital to anyone looking for web design and development services.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit Website View Profile
    4.6 4.6 (3)
    2.3 2.3 (6)

  • Bellosoft Limited

    Technology Connects

    Bellosoft is a global software development agency helping businesses scale through custom solutions in web, mobile, AI, and cloud technologies. With a focus on innovation, agility, and measurable results, we partner with startups and enterprises in the US, UK, and Europe to deliver reliable products and...

    Top Services:

    • Software Development
    • UI/UX Design
    • Web Development
    • Mobile App Development
    • eCommerce Development
    • Show more
    Location
    Watford, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $65/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    16 Projects Listed

    Bellosoft Limited Services

    • Software Development
    • UI/UX Design
    • Web Development
    • Mobile App Development
    • eCommerce Development
    • AI Development
    • Software Testing
    • Web Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Modern Tribe
    • Greyhound Racing Ireland
    • Unrvld
    • Levo
    • Moran's Catering
    • Novo Digital
    • Sentel
    • Mortgage Propeller
    • Etain
    • FBA
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • CCQ Tech

    Purpose built software. Partner led process. Business changing results.

    CCQ Tech is a UK-based technology consultancy specialising in bespoke software development for organisations with complex operational challenges. For over 20 years, we've partnered with financial institutions, engineering firms and infrastructure organisations to design and build custom software platforms...

    Top Services:

    • Software Development
    • Web Development
    • Staff Augmentation
    • AI Development
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    5 Projects Listed

    CCQ Tech Services

    • Software Development
    • Web Development
    • Staff Augmentation
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Standard Chartered
    • London Underground
    • Network Rail
    • The Woodhouse Partnership Ltd
    • Tesco
    • Handelsbanken
    • Finatra
    • British Eventing
    • The International Stock Exchange
    • Brickflow
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • Blue Functor Ltd

    More than just software. Developing your next adventure.

    Blue Functor is a team of passionate engineers, developers, and designers dedicated to delivering elegant and meaningful software applications. We specialise in creating scalable, secure, and reliable solutions using the latest technologies. Our services include software development and CTO as a Service...

    Top Services:

    • Software Development
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Minimal Budget
    $10,000 - $25,000

    Blue Functor Ltd Services

    • Software Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Mosaic Journal
    • Altify
    • NextDot
    • Grandmama
    • Acromove
    • Focus Bari
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • Evangelist Apps

    Best Custom App & AI Development Agency in UK

    At Evangelist Apps, we go beyond app development, offering IT consultancy and comprehensive digital solutions that are customized to your business goals. Our goal is to deliver effective, customized strategies that fuel growth and align with industry standards...

    Top Services:

    • Mobile App Development
    • UI/UX Design
    • IT Services
    • Staff Augmentation
    • DevOps Consulting
    • Show more
    Location
    Fleet, United Kingdom
    Number of Employees
    50 - 99
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    4 Projects Listed

    Evangelist Apps Services

    • Mobile App Development
    • UI/UX Design
    • IT Services
    • Staff Augmentation
    • DevOps Consulting
    • Graphic Design
    • AI Development
    • VR/AR
    • Software Development
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Union Bank of Switzerland
    • British Airways
    • Hastens Ltd.
    • BBC
    • British Gas
    Data sourced from the agency's DesignRush profile

    Evangelist Apps Reviews & Testimonials

    • Khushboo Gangarde
      Khushboo Gangarde Review from Google
      5.0 ★

      Khushboo Gangarde's Review Sourced from Google

      I’m currently working with Evangelist App, and it’s been an amazing experience so far. The environment here is super supportive and creative — I’ve learned so much in a short time. Every day brings a new challenge, and I can genuinely see myself growing, both professionally and personally. The team is great to work with, always open to ideas and feedback. Grateful to be part of such a positive and growth-driven space!

    • Tamanna Malik
      Tamanna Malik Review from Google
      5.0 ★

      Tamanna Malik's Review Sourced from Google

      Working with Evangelist Apps was a smooth and rewarding experience. The team communicated clearly throughout the project and brought great ideas to the table. They turned my vision into a functional, user-friendly app that exceeded my expectations. If you're looking for a team that delivers on time with top-notch quality, I’d definitely recommend them.

    • LIPIKA ROY
      LIPIKA ROY Review from Google
      5.0 ★

      LIPIKA ROY's Review Sourced from Google

      I had a great experience with Evangelist Apps ! They were professional, knowledgeable & delivered exactly what I wanted. The app they made for me is fantastic and easy to use. I highly recommended them to anyone looking for mobile app development.

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

  • Intelligent Graphic and Code

    Building Online Since 2005

    We design and build business software for growing companies. Project tracking, order management, client onboarding, process automation, and dashboards. One place to see everything instead of chasing updates across disconnected tools...

    Top Services:

    • Web Development
    • Mobile App Development
    • UI/UX Design
    • Software Development
    • AI Development
    • Show more
    Location
    Shrewsbury, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $200/hr
    Minimal Budget
    $10,000 - $25,000

    Intelligent Graphic and Code Services

    • Web Development
    • Mobile App Development
    • UI/UX Design
    • Software Development
    • AI Development
    • CRM Consulting
    • Digital Strategy
    • Business Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Index Assistant
    • StepsLeft
    • Installa
    • SendSale
    • Tudun
    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.

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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. 

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