Ranked · 10 assessed
Ordered by Agency List ScoreBespoke Software Development and Quality Assurance
Data and analytics solutions with Microsoft Fabric expertise
Framework-driven rapid application development, legacy modernisation, and OSCP-backed security expertise
Custom software and mobile app solutions for business challenges
Digital transformation, cloud accounting, and payroll systems built for hospitality operators
AI-enhanced software development with Microsoft and React expertise
Bespoke software development and project management in the UK
Custom software solutions for diverse industries and business automation
FinTech and AI solutions for banking and digital transformation
AI, Cloud, and Blockchain Solutions for Global Enterprises
Also in United Kingdom · 131 not yet assessed
Listed agencies queued for assessment. Alphabetical.About this ranking
What this page ranks
This page ranks the 10 custom software development agencies in United Kingdom that have been assessed on the Agency List Score, out of 141 listed.
The score measures how well an agency documents its own work in public — named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than described as the client's own results. It does not measure client satisfaction, price, or availability.
Cohorts and awards
Agencies are compared within a cohort — here, Custom Software Development in United Kingdom. A cohort must be large enough to express the band being awarded: at least 8 assessed agencies for a top 25% award, 20 for top 10%, 40 for top 5%, and 300 for top 1%. This one holds 10, so the strongest award available here is top 25%.
The 131 custom software development agencies not yet assessed are listed on this page but not ranked.
Paid placement
Partner agencies can buy a labelled placement block above the ranking on this page. It is always marked as paid and is never mixed into the ranked list.
Placement is paid; it does not affect the ranking, cohort membership, or any agency's score. Ranking position, cohort membership and the score itself are not for sale.
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Questions
- How many custom software development agencies are in United Kingdom?
- 141 are listed on Agency List in United Kingdom. 10 of them have been assessed on the Agency List Score as of September 2026.
- Which custom software development agency in United Kingdom is ranked highest?
- Wazobia Tech, with an Agency List Score of 94.1, ranks #1 of 10 assessed agencies in Custom Software Development in United Kingdom.
- Why are 131 custom software development agencies listed here but not ranked?
- 131 of the 141 listed have not yet been assessed on the Agency List Score. They each have a profile and are listed below the ranking, alphabetically, rather than being hidden or mixed into it.
- How is the ranking determined?
- By Agency List Score, within the Custom Software Development in United Kingdom cohort of 10 assessed agencies. The score is computed from evidence published on each agency's own website: named clients, quantified outcomes, and whether the outcome is attributed to the agency. Paid placement does not affect it.