Top Software Development Companies in London

Between them, the 43 software development companies on this page cover business services (14), eCommerce (13), information technology (12) and medical (11). They also list work in Birmingham, City of London and Karachi. 43 of them have written a profile you can read before you get in touch.

1. 1

   

   Light-it

   Mobile App Development · Custom Software Development · Software Development · Also in Montevideo and Kyiv

   Light-it runs a custom software development business that its website presents under the name Light IT Global.

   Write a review

   Why #1: Address in London · Founded 2006 — as stated on its own website, read 28 Sept 2026

   Not yet on record: client reviews, vetting.

2. 2

   

   Get Web, Inc.

   UI/UX Design · eCommerce · Cloud

   Get Web, Inc., which trades as Getweb, is a design and development company that takes digital products from first idea through build, testing and ongoing support.

   Write a review

   Why #2: Address in London · Founded 2008 — as stated on its own website, read 29 Sept 2026

   Not yet on record: client reviews, vetting.

3. 3

   JD

   James Dowen

   Consumer Products & Services · Business Services · Financial Services · Also in Birmingham

   James Dowen is a freelance web designer, web developer and AI software engineer working from Birmingham and London.

   Write a review

   Why #3: Based in Birmingham and London, UK · In business 12+ years — as stated on its own website, read 5 Oct 2026

   Not yet on record: client reviews, vetting.

4. Also listed, not yet ranked. We hold nothing checkable on these yet that ranks them here: no client review, vetting, award, expert review, or fact stated on their own website (and on a place ranking, where they are based). They follow in order of their TrustList Score. How TrustList ranks · Get vetted, free
5. –

   

   C-BIA Consulting Ltd

   Consumer Products & Services · Medical · Education

   UK business intelligence and data analytics consultancy building Microsoft Azure applications for healthcare, education and research

   Write a review

   On record: Founded 2006 — as stated on its own website, read 28 Sept 2026

6. –

   

   Devexperts

   Business Services · Information Technology · Financial Services

   Devexperts builds software for capital markets, supplying trading platforms and exchange systems to brokers, prop trading firms, exchanges, banks and wealth managers.

   Write a review

   On record: Founded 2002 — as stated on its own website, read 29 Sept 2026

7. –

   

   Infinite Solutions

   Cloud · Outsourcing · .NET

   Microsoft Dynamics 365 partner offering ERP implementation, development and IT outsourcing for organisations across Europe and beyond

   Write a review

   On record: Microsoft partner — as stated on its own website, read 5 Oct 2026

8. –

   

   Alluxi

   Top Software Development Companies · Top Website Development Companies · Top Web Design Companies · Also in Nottingham and Dublin

   We walk you through our proven development methodology, which we have tested and polished for years.

   Write a review
9. –

   

   Ash IT Service

   Top Software Development Companies · Top Website Development Companies · Information Technology · Also in City of London

   ASH IT Service is a leading software development company specialising in technology-driven business solutions.

   Write a review
10. –

    

    Astpp Open Source VoIP Billing Solution

    Top Software Development Companies · Top Website Development Companies · Business Services

    ASTPP is recognized as the top open-source VoIP billing solution, designed to facilitate seamless communication and management for VoIP service providers.

    Write a review

    On record: Address in London

11. –

    

    Centous Solutions

    Supply Chain, Logistics, and Transport · Consumer Products & Services · Top Software Development Companies · Also in Birmingham

    At Centous, we're dedicated to delivering advanced digital solutions that drive progress and fuel growth for our clients.

    Write a review
12. –

    

    Teqnovos Ltd

    Hospitality & Leisure · Medical

    Teqnovos is a leading mobile and web app development company that caters to the technological needs of a wide variety of businesses.

    Write a review

    On record: Address in London

13. –

    

    Agentify

    Advertising & Marketing · Business Services · eCommerce

    Agentify is a marketing technology business that grew out of WPP's data and precision community.

    Write a review
14. –

    

    Avoen

    Avoen is a marketing agency in London that pairs website design with social media marketing.

    Write a review

    On record: Based in London, United Kingdom

15. –

    

    Big Media Expert

    Hospitality & Leisure · Information Technology · Real Estate

    Digital agency with offices in London, the United States and Albania building online stores, websites and marketing campaigns

    Write a review

    On record: Office in London

16. –

    

    Brainence

    Business Services · Information Technology · Software Development · Also in United Kingdom

    Brainence is a custom software development company offering full-cycle services from analysis and architecture through to deployment and support.

    Write a review

    On record: Address in London

17. –

    

    Cressoft Consultancy Limited

    Information Technology · Financial Services · eCommerce

    Cressoft Consultancy Limited is a London technology consultancy that supplies nearshore specialists to join client engineering teams, working in the client's time zone.

    Write a review

    On record: Based in Sutton, London

18. –

    

    Crucible

    Consumer Products & Services · Arts, Entertainment & Music · Business Services

    Crucible is a digital marketing agency in London that now specialises in the built environment.

    Write a review

    On record: Based in London, UK

19. –

    

    CXcherry

    Education · Security

    CXcherry makes a learning management system (LMS) that companies use to run their corporate training, and it is also pitched at training firms and education providers.

    Write a review

    On record: Office in London

20. –

    

    Cybnode Group

    Business Services · Information Technology · Financial Services

    Cybnode Group is a security and engineering consultancy that prepares AI startups for the vendor security reviews large buyers run before signing contracts.

    Write a review

    On record: Based in London, United Kingdom

21. –

    CD

    Cypher Digital

    Supply Chain, Logistics, and Transport · Business Services · Financial Services

    Cypher Digital is a London software agency that designs and builds bespoke web and mobile applications.

    Write a review

    On record: Based in London

22. –

    

    Decimal Point Analytics

    Financial Services · Manufacturing · Analytics

    Decimal Point Analytics, also known as DPA, is a financial research consulting firm that pairs computing and data science skills with knowledge of the financial services sector.

    Write a review

    On record: Address in London

23. –

    

    Different Projects Ltd.

    Consumer Products & Services · Advertising & Marketing · Non Profit · Also in Europe

    London digital product and UX studio designing and building human-centred products, with product coaching for founders and teams

    Write a review

    On record: Based in London

24. –

    

    Digital Detox Ltd

    Legal · Engineering

    Write a review
25. –

    

    DigitSense

    Consumer Products & Services · Advertising & Marketing · Business Services

    DigitSense is a digital product studio with addresses in Hong Kong and London that now describes itself as an AI transformation partner.

    Write a review

    On record: Address in London

Articles

Related reading

Articles on this subject first, then the newest.

All articles

Accelerator

28 Sept 2026 · TrustList Editorial

Accelerator deadlines: Y Combinator Winter 2027 on 2 November, Techstars Spring 2027 on 18 November

Y Combinator's on-time deadline for its Winter 2027 batch is 2 November 2026, 8pm PT, with decisions by 11 December. Techstars' Spring 2027…

London

21 Sept 2026 · TrustList Editorial

Project Online shuts on 30 September, and its data goes with it

Microsoft retires Project Online at 08:00 Pacific on 30 September 2026. After that, projects and their data in the service cannot be…

Startup Accelerator

17 Sept 2026 · TrustList Editorial

Startup accelerators worldwide: the 2026 guide for founders

Y Combinator, Techstars, 500 Global, Antler, Entrepreneurs First, Hub71, STATION F and more: what accelerators invest, what they take, and…