Shipvane · 4 AE roles
Marco E. · joined Cargolio
Fleetora · first roles in DEDeveloper apis & data infrastructure in United Kingdom_
As of 4 November 2026, 3,381 developer apis & data infrastructure companies are based in United Kingdom; 126 are hiring right now and London has the most.
As of 4 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.
- Companies
- 3,381
- Hiring now
- 126 · 62 new in 30 d
- Largest niche
- Oss frameworks & dev utilities · 317
- Top city
- London · 629
- Parent market
- Technology & software · 94,820
Developer apis & data infrastructure in United Kingdom, broken down
| companies | share | |
|---|---|---|
| Oss frameworks & dev utilities | 317 | 9% |
| Other B2B SaaS platforms | 284 | 8% |
| Other developer apis & data infrastructure | 266 | 8% |
| AI governance & security platforms | 189 | 6% |
| AI agent automation platforms | 185 | 5% |
| Cybersecurity iam software | 156 | 5% |
| Data engineering & database tools | 153 | 5% |
| Custom software development agencies | 138 | 4% |
| Compliance grc software | 119 | 4% |
| Business intelligence analytics software | 112 | 3% |
| Applied AI ML development | 93 | 3% |
| API marketplaces & paid data APIs | 89 | 3% |
| Blockchain & web3 infrastructure | 89 | 3% |
| AI context & memory infrastructure | 87 | 3% |
| Gpu cloud & ai compute | 87 | 3% |
| companies · hiring | |
|---|---|
| Self-employed | 1,918 · 6 |
| 2-10 employees | 899 · 34 |
| 11-50 employees | 421 · 37 |
| 51-200 employees | 108 · 34 |
| 201-500 employees | 25 · 11 |
| 501-1000 employees | 4 · 2 |
| 1001-5000 employees | 6 · 2 |
| companies | share | |
|---|---|---|
| London | 629 | 19% |
| Hoxton | 51 | 2% |
| Newington | 36 | 1% |
| Somers Town | 29 | 1% |
| Canary Wharf | 28 | 1% |
| Manchester | 28 | 1% |
| Cambridge | 24 | 1% |
| Edinburgh | 24 | 1% |
| Glasgow | 24 | 1% |
| Aldgate East | 23 | 1% |
| Bristol | 20 | 1% |
| Cardiff | 12 | 0% |
The biggest developer apis & data infrastructure companies in United Kingdom
The largest companies of the segment, by headcount; job boards and portals left out.
Filter by niche, size, city or hiring, and open the decision makers with verified e-mails.
Free plan: 1,000 records, no card. The first 20 are above; e-mails are verified at the mail server when you open them.
The stack of developer apis & data infrastructure in United Kingdom
From their websites and DNS records, page plumbing left out.
Other segments of technology & software in United Kingdom
Technology & software in United Kingdom, the whole market →
B2B SaaS platforms · 37,353 →
Software dev AI agencies · 21,725 →
Managed IT services · 17,588 →
Consumer software & mobile apps · 14,516 →
Web hosting & domains · 11,942 →
Health technology & life sciences · 2,222 →
Hospitality software · 2,121 →
Tracking & fleet software · 1,801 →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
3,381 developer apis & data infrastructure companies are based in United Kingdom; 126 are hiring right now and London has the most. (Breaknorm, 4 November 2026, https://breaknorm.co/market/technology_software/united-kingdom/developer_apis_and_data_infrastructure)
Read from the source, not self-reported
Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →
- ClassificationEvery company is classified from its own website into vertical, sub-vertical and leaf with a confidence score; this page counts industry confidence ≥ 0.7 and country confidence ≥ 0.8.
- Company listRich profiles with a LinkedIn-known headcount only; job boards, directories, portals and non-organisations are left out.
- HiringOpen roles read hourly from the company's own career system.
Developer apis & data infrastructure in United Kingdom: questions
How many developer apis & data infrastructure companies are there in United Kingdom?
3,381 with a confident classification, read from their own websites.
What is a sub-vertical?
The middle level of our industry tree: Technology & software → Developer apis & data infrastructure → leaf niches such as oss frameworks & dev utilities, other b2b saas platforms, other developer apis & data infrastructure. Each company carries all three with a confidence score.
Can I get the list?
Yes: the first 20 largest are on this page; the full list with verified e-mails is in the product. Counting is free.
Get this segment your way
The same data as a search, over MCP and the API, as bulk files, or pushed to you as it changes.
Every developer apis & data infrastructure company in United Kingdom,
with the person who decides
Filter on the segment and the country, and get 1,000 records free.