Ranked · 12 of 13 assessed
Ordered by Agency List ScoreCustom software, cloud infrastructure, and data engineering for fintech and healthcare
Custom software, dedicated teams, and data engineering for healthcare, finance, and logistics
Custom software development and AI solutions for digital transformation.
Bespoke software solutions for healthcare and financial industries.
Build dedicated R&D teams and scale software development
Designs and builds digital products for public and private sectors
Custom software development for maritime and renewable energy sectors
Engineering digital experiences for banking and media industries
Web platforms, e-commerce and cloud infrastructure for enterprise clients since 2004
Custom software and mobile app development for diverse industries
Application development, cloud architecture and data engineering across banking, healthcare and travel
Web3 and AI-driven software development for scalable digital products
Also in London · 6 not ranked here
5 have not yet been assessed on the Agency List Score. Alphabetical.About this ranking
What this page ranks
This page ranks 12 of the 13 assessed custom software development agencies in London, Greater London — the ones carrying a published score — out of 18 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 London, Greater London. 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 13, so the strongest award available here is top 25%.
The 5 custom software development agencies not yet assessed are listed on this page but not ranked.
One more was assessed and no published evidence of its work was found, so no score is shown for it.
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 London, Greater London?
- 18 are listed on Agency List in London, Greater London. 13 of them have been assessed on the Agency List Score as of October 2026, and 12 of those carry a published score.
- Which custom software development agency in London, Greater London is ranked highest?
- SPD Technology, with an Agency List Score of 97.7, ranks #1 of 13 assessed agencies in Custom Software Development in London, Greater London.
- Why are 6 custom software development agencies listed here but not ranked?
- 5 of the 18 listed have not yet been assessed on the Agency List Score. One more was assessed and no published evidence of its work was found, so no score is shown for it. 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 London, Greater London cohort of 13 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.