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Top Software Development Companies in the UK

41 of 135 software development companies ranked on evidence in the Q4 2026 edition.

Between them, the 135 software development companies on this page cover eCommerce (32), business services (28), financial services (25) and information technology (24). They also list work in London, Wales, Birmingham and Europe. 135 of them have written a profile you can read before you get in touch.

TrustList ranking

Q4 2026 edition

41 of 135 software development companies ranked on evidence held on 5 October 2026: client reviews, vetting, awards and facts each business states on its own website, which we read and date. Nobody pays to be placed.

Positions are fixed for the quarter; the next edition is due in January 2027.

How this is ranked About this edition

All software development companies 41 ranked SMEs 41 ranked

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Q-Solutions
Mobile App Development · Custom Software Development · Web Design · Also in Karachi
Software development company with a delivery centre in Karachi, building products, automation and engineering teams for clients abroad
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Why #23 (shared): Based in Karachi, with offices in Chicago and London · Founded 2008 — as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Geidans Solutions
Custom Software Development · Web Design · Web Development · Also in Latvia
Geidans Solutions is a UK software company that has been building custom applications since 2009.
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Why #26 (shared): Based in United Kingdom · Founded 2009 — as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Creative Nights
Creative · Internet · simple · Also in United States
UX design and technology consultancy building accessible, fast websites and web applications for organisations in regulated sectors
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Why #26 (shared): Office in United Kingdom · Founded 2009 — as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Jarilo Design
Jarilo Design is a web design and digital marketing agency on the Wirral, England. Designers and developers build all work in house at its office there.
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Why #28 (shared): Based in Wirral, England · In business 15+ years — as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
G
Garbott
Oxfordshire technology partner offering custom software, digital transformation and equity partnerships for growing firms
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Why #28 (shared): Based in Oxfordshire, UK · In business 15+ years — as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
JD
James Dowen
Consumer Products & Services · Business Services · Financial Services · Also in Birmingham and London
James Dowen is a freelance web designer, web developer and AI software engineer working from Birmingham and London.
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Why #30 (shared): 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.
63Digital
Supply Chain, Logistics, and Transport · Advertising & Marketing · Business Services
63Digital is a bespoke software development company in Scotland.
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Why #30 (shared): Based in Scotland · Founded 2014 — as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
GP
Gavin Potter
Consumer Products & Services · Arts, Entertainment & Music · Advertising & Marketing · Also in Scottish Borders
Gavin Potter is a freelance website and software developer serving small businesses, including local firms in the Scottish Borders.
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Why #32 (shared): Based in Scottish Borders, UK · In business 10+ years — as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Kolte Technologies
Hospitality & Leisure · Information Technology · eCommerce
Kolte Technologies is a software development and IT consulting company that has added artificial intelligence work to its engineering services.
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Why #32 (shared): Office in United Kingdom · In business 10+ years — as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Flex4 OPS
SEO · Branding · Administration
Flex4 OPS is the Online Print Solution, a modular web-to-print platform developed in the UK by Flex4.
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Why #32 (shared): Based in United Kingdom · In business 10+ years — as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Ardanis
JavaScript · SaaS · Also in Ireland
Ardanis designs and builds custom software for organisations in the UK and Ireland, and has done so since 2016.
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Why #32 (shared): Based in UK and Ireland · Founded 2016 — as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
DT
Dan Temple, Freelance Web Development
Creative · WordPress · simple · Also in Bournemouth
Dan Temple, Freelance Web Development is the freelance practice of Dan Temple, a web developer based in Bournemouth with more than ten years of experience.
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Why #32 (shared): Based in Bournemouth · In business 10+ years — as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
BSPOKE Software
BSPOKE Software builds and maintains custom business software and AI tools for specialist companies across the UK.
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Why #32 (shared): Based in UK · In business 10+ years — as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Hive IT
Hive IT is a digital agency in Sheffield, England, and a Certified B Corporation.
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Why #38: Based in Sheffield, UK · Cyber Essentials, professional accreditation — as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Arishi
Creative · Security · Energy · Also in Reading
Arishi is a technology consultancy and bespoke software engineering firm with its headquarters in Hertfordshire, UK.
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Why #39 (shared): Based in Hertfordshire, UK · ISO 27001 — as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Denova GloSoft Limited
Business Intelligence · Manufacturing · Oracle
Denova GloSoft Limited, which trades as DGL IT Services, combines technology consulting with software delivery for larger organisations.
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Why #39 (shared): Office in United Kingdom · professional accreditation — as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Eastside Co
eCommerce · SEO · Goals
Eastside Co is a UK ecommerce agency that works exclusively on Shopify.
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Why #39 (shared): Based in United Kingdom · Shopify partner — as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
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
Ecometrica
Mobile App Development · Web Design · Web Development
Ecometrica makes software that lets companies and governments measure their climate impact and produce reports that stand up to audit.
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On record: Founded 2008 — as stated on its own website, read 28 Sept 2026
Filament AI
Financial Services · Information Technology · Web Design · Also in Ontario and Europe
Filament AI is a software business that builds data-driven business applications, with a strong focus on private equity.
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On record: Founded 2016 — as stated on its own website, read 28 Sept 2026
Astpp Open Source VoIP Billing Solution
Top Software Development Companies · Top Website Development Companies · Business Services · Also in London
ASTPP is recognized as the top open-source VoIP billing solution, designed to facilitate seamless communication and management for VoIP service providers.
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On record: Address in United Kingdom
Clinion
Information Technology
Clinion provides EDC, RTSM, CTMS, eCOA and Document Automation Solutions in an Integrated, cloud-based eClinical platform.
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On record: Address in United Kingdom
C
CodeFirst
Top Software Development Companies
CodeFirst helps businesses maintain and modernise legacy software and build new bespoke applications.
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On record: Address in United Kingdom
Codzgarage Infotech
Supply Chain, Logistics, and Transport · Consumer Products & Services · Energy & Natural Resources
Codzgarage, A congregation of vetted techies ingrained with extraordinary capabilities, is a one-stop destination for comprehensive software development services.
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On record: Address in United Kingdom
Milk Delivery Solutions
Supply Chain, Logistics, and Transport · Top Software Development Companies · Business Services
Milk Delivery Solutions offers a profitable, automated, and customer-centric approach to managing your milk delivery business.
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On record: Address in United Kingdom

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Top Software Development Companies in the UK

Q-Solutions

Geidans Solutions

Creative Nights

Jarilo Design

Garbott

James Dowen

63Digital

Gavin Potter

Kolte Technologies

Flex4 OPS

Ardanis

Dan Temple, Freelance Web Development

BSPOKE Software

Hive IT

Arishi

Denova GloSoft Limited

Eastside Co

Ecometrica

Filament AI

Astpp Open Source VoIP Billing Solution

Clinion

CodeFirst

Codzgarage Infotech

Milk Delivery Solutions

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