Series A Developer tools companies in London
IDEs, runtimes, frameworks, and platforms built primarily for engineers. Filtered to Series A-stage companies headquartered in London.
Built from a search like: “Top Series A Developer tools companies in London”
Ranked by current headcount across Series A Developer tools companies in London. Refreshed daily.
- 1Prolific· Greater London, England, United Kingdom
- Series A
- 987 employees
- Founded 2014
- 2Ben· London, England, United Kingdom
- Series A
- 409 employees
- Founded 2019
- 3XYZ Reality· London, England, United Kingdom
- Series A
- 354 employees
- Founded 2017
- 4Eneba· London, England, United Kingdom
- Series A
- 307 employees
- Founded 2018
- 5Flawless· London, England, United Kingdom
- Series A
- 275 employees
- Founded 2018
- 6Hutch· London, England, United Kingdom
- Series A
- 205 employees
- Founded 2011
- 7Shufti· London, England, United Kingdom
- Series A
- 173 employees
- Founded 2016
- 8Muzz· London, England, United Kingdom
- Series A
- 170 employees
- Founded 2015
- 9Provar· Greater London, England, United Kingdom
- Series A
- 164 employees
- Founded 2014
- 10Omnea· London, England, United Kingdom
- Series A
- 162 employees
- Founded 2022
- 11Zinc· London Area, United Kingdom
- Series A
- 161 employees
- Founded 2017
- 12Dengage· London, England, United Kingdom
- Series A
- 159 employees
- Founded 2018
- 13AntWorks· London, England, United Kingdom
- Series A
- 154 employees
- Founded 2015
- 14Vega· London, England, United Kingdom
- Series A
- 143 employees
- Founded 2022
- 15GSS - Global Screening Services· London, England, United Kingdom
- Series A
- 142 employees
- Founded 2021
- 16Jigsaw· Greater London, England, United Kingdom
- Series A
- 142 employees
- Founded 2004
- 17Gizmo· London, England, United Kingdom
- Series A
- 141 employees
- Founded 2019
- 18HYPERVSN· London, England, United Kingdom
- Series A
- 137 employees
- Founded 2011
- 19Goodstack· London, England, United Kingdom
- Series A
- 136 employees
- Founded 2017
- 20nudge· London, England, United Kingdom
- Series A
- 130 employees
- Founded 2013
- 21Ravio· London, England, United Kingdom
- Series A
- 119 employees
- Founded 2022
- 22Codility· London, England, United Kingdom
- Series A
- 118 employees
- Founded 2009
- 23TERN Group· London, England, United Kingdom
- Series A
- 118 employees
- Founded 2023
- 24Metapack· London Colney, England, United Kingdom
- Series A
- 115 employees
- Founded 1999
- 25Xpedeon· London, England, United Kingdom
- Series A
- 109 employees
- Founded 1994
Find engineers at Series A Developer tools companies in London
Searching for “engineers at top Series A Developer tools companies in London” surfaces this slice of the market. The list above ranks Developer tools companies headquartered in London whose latest disclosed round is Series A, by current headcount, drawn from public LinkedIn and Crunchbase records. With 173 matching companies in our index, this is a tight read on where the Developer tools talent in London is heating up.
Three filters at once narrows the field hard. The companies that survive all three — Series A, Developer tools, in London — are usually the most targeted recruiting pool a hiring manager can ask for. Senior engineers, founding designers, and product leads here are about to become Developer tools’s next operators and angel investors.
Refolk converts this list into a live search. Ask for “senior engineers at Series A Developer tools companies in London hiring” or “founders of Series A Developer tools companies in London who left in the last year” and Refolk returns a ranked shortlist with the evidence behind each match.
How this list is built
Last refreshed: Thu, 07 May 2026 06:51:03 GMT
Need an even more specific search?
Refolk runs natural-language searches across LinkedIn, GitHub, and the open web. Try one of these:
Related lists
- Seed Fintech in London
- Series A Fintech in London
- Series B Fintech in London
- Series A AI in London
- Series B AI in London
- Series A SaaS in London
- Seed Developer tools in San Francisco
- Series A Developer tools in San Francisco
See all company lists.