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.

Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.

United Kingdom × Sort by: Number of Reviews ×
  • Zoho, CRM, AI & Automation Specialists

    Mason & Co helps organisations improve the way they operate through better-connected business systems. We specialise in Zoho, CRM, AI, automation, integration and business intelligence, combining practical implementation with enterprise architecture thinking to create scalable, well-governed solutions...

    Top Services:

    • Digital Strategy
    • Web Design
    • WordPress Website Design
    • Web Development
    • Software Development
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $250/hr
    Minimal Budget
    $1,000 - $10,000
  • Building Digital Products with Senior Engineering Talent

    GeekyBugs helps startups and growing businesses build, scale, and improve digital products with experienced software engineers and flexible development teams...

    Top Services:

    • Web Design
    • eCommerce Development
    • Web Development
    • WordPress Website Design
    • Software Testing
    • Show more
    Location
    Hatfield, United Kingdom
    Number of Employees
    50 - 99
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    3 Projects Listed
  • The studio that publishes its prices

    We are a UK-registered studio that builds software and draws illustration, with both sitting in one team rather than two suppliers.Unusually for this industry, our prices are published on our own website. A landing page is 600 pounds, a five page site is 1,200, an app MVP is 5,400. Illustration starts at...

    Top Services:

    • Graphic Design
    • Web Design
    • Web Development
    • WordPress Website Design
    • Mobile App Development
    • Show more
    Location
    United Downs, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $38/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
  • Marketplace platforms for founders and established businesses, built by people who run one.

    Coding with T builds marketplace platforms and enterprise systems for founders and established businesses worldwide: delivery, services, booking, logistics and operations platforms. Four marketplaces shipped, one we run ourselves. Message us to plan yours...

    Top Services:

    • Mobile App Development
    • Software Development
    • eCommerce Development
    • Web Development
    • UI/UX Design
    • Show more
    Location
    Bridge Street, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
  • Specialist eCommerce Ageny

    Frankenstein Digital is a Liverpool ecommerce agency for growing online stores. We bring SEO, SXO, Google Ads, development and automation together, so every part of your store works towards more sales. You work directly with the specialist doing the work, without big agency fees...

    Top Services:

    • eCommerce Development
    • Web Development
    • SEO
    • PPC
    • Content Marketing
    • Show more
    Location
    Liverpool, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
  • Custom AI Solutions That Survive Production

    Lurto is an AI automation agency for US and UK businesses. We build custom AI systems and keep them running after launch: AI agents for intake and follow-up, document generation for regulated paperwork, AI voice receptionists, and integrations that connect AI to your CRM and ERP. Every engagement starts with...

    Top Services:

    • AI Development
    • Software Development
    • CRM Consulting
    • ERP Consulting
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $125/hr
    Minimal Budget
    $1,000 - $10,000
  • My Expert Solutions provides custom software, web development, mobile app, UI/UX, digital marketing, cloud, cybersecurity, AI and IT consulting services. We help businesses build secure, scalable digital solutions that improve efficiency, attract customers and support long-term growth...

    Top Services:

    • Web Development
    • eCommerce Development
    • Web Design
    • Software Testing
    • Mobile App Development
    • Show more
    Location
    Leeds, United Kingdom
    Number of Employees
    Under 49
    Minimal Budget
    $10,000 - $25,000
  • Human-Reviewed AI Development Company

    Velocity is an established AI Development Agency based in London, with a vision to help businesses architect, build and scale intelligent AI solutions that deliver measurable results and create lasting competitive advantage. We believe AI should solve real business problems, not create new ones...

    Top Services:

    • Web Design
    • Web Development
    • eCommerce Development
    • AEO
    • AI Development
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    50 - 99
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $1,000 - $10,000
  • The UK's #1 software development agency, specialising in AI applications

    Softgen is the UK's #1 software development agency for AI applications. It builds AI agents, copilots, retrieval (RAG) systems, SaaS platforms, MVPs, web apps and mobile apps for founders and growing companies. A senior-only team works to the Softgen Method: fixed scope, fixed price and a launch date agreed...

    Top Services:

    • AI Development
    • Software Development
    • Mobile App Development
    • Web Development
    • Product Design
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $1,000 - $10,000
  • Practical AI Automation for U.S. Businesses

    DevSolutionsAI is an AI automation agency helping U.S. businesses reduce repetitive work, improve operations, and scale efficiently through AI agents, workflow automation, document AI, CRM integrations, and customer-support solutions...

    Top Services:

    • AI Development
    • Software Development
    • Web Development
    • AEO
    • SEO
    • Show more
    Location
    Canterbury, United Kingdom
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
  • We build the software and the tech teams behind it.

    Cognivise is a London software development company. We build custom software, web applications and online stores, and put together dedicated engineering teams when a business needs more developers than it can hire in time. Clients work directly with experienced people, keep ownership of their code and get...

    Top Services:

    • Web Design
    • eCommerce Development
    • Web Development
    • SEO
    • Content Marketing
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
  • Custom software development and technology consultancy

    Woods & Walker is a founder-led custom software development company and technology consultancy in Newcastle upon Tyne, working with businesses across the UK.We're business owners who solve problems with technology. Sometimes that means building bespoke, business-critical software. Sometimes it means...

    Top Services:

    • Software Development
    • Mobile App Development
    • Digital Strategy
    • Digital Services
    • AI Development
    • Show more
    Location
    Newcastle upon Tyne, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $80/hr
    Minimal Budget
    $10,000 - $25,000
  • Smart Solutions For Your Business

    PSI Square is a specialist software development firm with 10+ years of experience building algorithmic trading systems, AI agents and automation, SaaS platforms, and custom web and mobile applications. Founded in 2015, the company serves traders, prop firms, startups, SMEs, and businesses worldwide, with...

    Top Services:

    • Web Development
    • Mobile App Development
    • Software Development
    • AI Development
    • Software Testing
    • Show more
    Location
    Camberley, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    5 Projects Listed
  • Custom websites. Local SEO. Real enquiries.

    Bath agency building custom-coded websites and local SEO for small businesses & trades...

    Top Services:

    • Graphic Design
    • Branding
    • Web Design
    • eCommerce Development
    • Web Development
    • Show more
    Location
    Bath, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed
  • Thoughtful websites built around how your business actually works

    Nialto Services is a web design and development studio in Potters Bar, working with businesses across Hertfordshire, London and the rest of the UK. We build bespoke websites, online shops and web applications around how your business actually works, rather than from a template...

    Top Services:

    • Web Design
    • Web Development
    • Digital Strategy
    • UI/UX Design
    • eCommerce Development
    • Show more
    Location
    Potters Bar, United Kingdom
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
  • Custom CRM And Business Systems

    UK software consultancy (formerly Smashed Crab Software) building custom CRM, quoting, operations and customer portal systems for established organisations that have outgrown spreadsheets or off-the-shelf tools. In-house analysts, developers and QA in Hull, Sheffield and London, with practical AI built in...

    Top Services:

    • Software Development
    • CRM Consulting
    • AI Development
    • ERP Consulting
    • Show more
    Location
    Kingston upon Hull, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $60/hr
    Minimal Budget
    $10,000 - $25,000
  • AI That People Love

    Wilmslow software & AI consultancy building bespoke software, automation and CRMs for SMEs that save time, cut costs and boost productivity...

    Top Services:

    • Software Development
    • AI Development
    • Mobile App Development
    Location
    Wilmslow, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Portfolios Count
    1 Project Listed
  • Digital Services For Recruitment Businesses

    TRG Digital are a digital services specialist in the recruitment sector with over 10 years hands-on experience...

    Top Services:

    • Digital Services
    • Branding
    • Digital Strategy
    • Web Design
    • Web Development
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    2 Projects Listed
  • Senior engineers building software, AI and SaaS for UK and Indian companies

    Tech Nimbus is a software engineering company for businesses that need senior developers without the overhead of a large agency. We build custom software, AI features and SaaS platforms, and place dedicated or contract developers inside client teams. Delivery runs from India with working hours that overlap...

    Top Services:

    • Digital Services
    • Product Design
    • Web Development
    • UI/UX Design
    • Web Design
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
  • Premium websites and AI that answer every call, book more clients and follow up automatically

    We help local service businesses stop losing customers to missed calls and slow replies. We design premium websites and connect them to AI voice agents, WhatsApp and Instagram automation and n8n workflows that answer, qualify, book and follow up every enquiry. Clinics, trades, salons, restaurants, gyms and...

    Top Services:

    • Web Design
    • AI Development
    • Phone Answering Services
    • Web Development
    • SEO
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
  • Web design and SEO that bring Birmingham and UK businesses more customers

    Axarez is a Birmingham agency that designs fast websites and gets them found. We work with small and local businesses that want more calls and enquiries from Google, not just a nicer-looking site. Our team builds websites, online shops and custom booking tools, then handles the SEO, Google Maps visibility and...

    Top Services:

    • Web Design
    • Web Development
    • eCommerce Development
    • SEO
    • PPC
    • Show more
    Location
    Birmingham, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Portfolios Count
    1 Project Listed
  • Custom Software Development & Lead Automation

    Upstack Web builds custom web apps, CRMs and lead automation for businesses in the US, Canada and the UK. MVPs, internal tools and more. Book a free call...

    Top Services:

    • Digital Services
    • Web Design
    • UI/UX Design
    • WordPress Website Design
    • eCommerce Development
    • Show more
    Location
    Aberdeen, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    7 Projects Listed
  • Software, By Hand

    Software studio in Sutton Coldfield, West Midlands. We design and build native iOS and Android apps, web platforms and the back-end services that run them, then take them through store review and launch. The engineers who scope your project are the ones who write the code. Recent work includes Little Wins, a...

    Top Services:

    • Mobile App Development
    • Software Development
    • AI Development
    • Web Development
    • Web Design
    • Show more
    Location
    Birmingham, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $85/hr
    Portfolios Count
    5 Projects Listed

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We verify businesses and reviewer LinkedIn profiles for integrity.

Agencies vetted
129,262+
2

Portfolio Review

We review agency work, case studies, and results to confirm skill.

Applicants rejected
47%
3

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We monitor listings regularly; outdated agencies are removed.

Agencies verified
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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.