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.
Based in Leicester, England, we are a team of digital specialists - designers, developers, project managers and digital fanatics. We have a diverse set of skills and we love the digital products we make...
Top Services:
- Web Design
- Software Development
- Web Development
- Mobile App Development
- Digital Marketing
- Show more
- Location
- Leicester, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $75/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 4 Projects Listed
York-based AI development consultancy for UK businesses of 10 to 200 people. We find the manual work between the systems you already use and build custom automations and AI agents that remove it. Fixed-price Automation Audit first; first system typically live within a month...
Top Services:
- AI Development
- BPO
- Software Development
- Big Data Analytics
- IT Services
- Show more
- Location
- York, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $125/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 3 Projects Listed
Perimattic is a technology partner specializing in AI development, software development, cloud solutions, DevOps, MLOps, and enterprise technology services. The company helps startups, growing businesses, and enterprises build secure, scalable, and high-performance digital solutions...
Top Services:
- AI Development
- DevOps Consulting
- Cloud Consulting
- Software Testing
- Software Development
- Show more
- Location
- London, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
Severus is a UK business automation and operations partner for construction companies and law firms. We connect the systems you already use and add AI where it saves real hours. Offices in London and Tallinn...
Top Services:
- Business Consulting
- IT Services
- AI Development
- Software Development
- ERP Consulting
- Show more
- Location
- London, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $85/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 7 Projects Listed
Cardiff software and AI automation agency. Custom websites from £1,999, bespoke platforms from £14,950, AI receptionists and workflow automation for UK firms...
Top Services:
- Software Development
- Web Development
- AI Development
- Web Design
- Show more
- Location
- Cardiff, United Kingdom
- Number of Employees
- Under 49
- Minimal Budget
- $1,000 - $10,000
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
For 18 years, we've built the software behind banks, governments, and household retail brands. We developed the UKs first mobile banking app and went on to build the earliest m-commerce apps on the UK App Store for brands including GAME, Gamestation, Waterstones, HMV and Next...
Top Services:
- Mobile App Development
- Software Development
- AI Development
- Web Development
- Business Consulting
- Show more
- Location
- Birmingham, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $80/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 1 Project Listed
Cloud based travel technology platform for travel agencies, tour operators, and DMCs...
Top Services:
- Software Development
- Mobile App Development
- Web Design
- eCommerce Development
- Web Development
- Show more
- Location
- London, United Kingdom
- Number of Employees
- 50 - 99
Sandbanks Digital is the premium choice for website management and custom app development for the peninsula. We focus on your digital tools, so you can focus on your business...
Top Services:
- Web Design
- Web Development
- eCommerce Development
- SEO
- Software Development
- Show more
- Location
- Poole, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 4 Projects Listed
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
&above is an AI product agency that helps scale-ups and enterprises turn AI experiments into a new way of working. With a problem-first, design-led approach, we design and build agentic products and AI operating systems that people actually use every day - not pilots that stall...
Top Services:
- AI Development
- Software Development
- Engineering
- UI/UX Design
- Mobile App Development
- Show more
- Location
- London, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $50,000 & Up
Congruent Software, headquartered in Bellevue, WA, delivers software development and IT consulting to global enterprises. With 30+ years and 3,000+ projects, the Microsoft and Salesforce partner specializes in AI, cloud, custom apps, data analytics, Dynamics 365, Salesforce and SharePoint...
Top Services:
- AI Development
- Software Development
- Mobile App Development
- Software Testing
- IT Services
- Show more
- Location
- London, United Kingdom
- Number of Employees
- 100 - 249
OpsMavix builds custom operations systems that help growing businesses replace spreadsheets, manual work, and disconnected tools with one clear source of truth. We focus on inventory, workflows, reporting, automation, and internal business apps that give teams more control and less chaos...
Top Services:
- eCommerce Development
- Software Development
- ERP Consulting
- CRM Consulting
- ECM Consulting
- Show more
- Location
- London, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $70/hr
- Minimal Budget
- $10,000 - $25,000
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
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
Inflix is a full-service web development agency based in St Helens, Merseyside. We build websites, ecommerce platforms, SaaS products, mobile apps, and custom software for UK businesses. Founded in 2015 with 170+ clients served. Fixed-price proposals, no hidden fees, free consultation...
Top Services:
- Web Development
- eCommerce Development
- Mobile App Development
- Software Development
- Digital Services
- Show more
- Location
- St Helens, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $90/hr
- Minimal Budget
- $1,000 - $10,000
All My Systems (AMS) is a UK-based Microsoft Solutions Partner specialising in Microsoft Dynamics 365 Business Central, CRM and the Power Platform. We help small and medium-sized businesses streamline operations, improve visibility and work more efficiently with connected business systems. Unlike...
Top Services:
- CRM Consulting
- ERP Consulting
- Business Consulting
- Big Data Analytics
- Staff Augmentation
- Show more
- Location
- Hebden Bridge, United Kingdom
- Number of Employees
- Under 49
- Minimal Budget
- $10,000 - $25,000
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
Aceist is a full-service web design and development agency established in 2011. We build professional websites, Shopify stores, ecommerce platforms, and custom web applications for businesses across the UK, USA, and Pakistan. 200+ projects delivered. Honest pricing. Built right, every time...
Top Services:
- Web Design
- eCommerce Development
- Web Development
- WordPress Website Design
- SEO
- Show more
- Location
- Sheffield, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
London studio. We design and build web and mobile products, plus automation and search visibility for startups and growing brands...
Top Services:
- Digital Strategy
- Web Design
- UI/UX Design
- eCommerce Development
- Web Development
- Show more
- Location
- London, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $1,000 - $10,000
Alchemy Consulting Services is a fractional CIO and AI transformation practice led by David Viney, a chartered accountant (ACA) and IT professional (CITP) with over 30 years of technology leadership across WPP, Heathrow, BSI, Arup and the BBC. We help organisations move beyond AI pilots into governed...
Top Services:
- AI Development
- IT Services
- Staff Augmentation
- Cybersecurity
- Digital Strategy
- Show more
- Location
- Leeds, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $1400/hr
- Minimal Budget
- $1,000 - $10,000
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Software Development Specialties in the United Kingdom
Software Development Companies by City
Popular Services
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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.
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