Series A SaaS companies in London
Software-as-a-service vendors selling subscription cloud software to other businesses. Filtered to Series A-stage companies headquartered in London.
- StageSeries A
- IndustrySaaS
- HQLondon
- Matches258
Built from a search like: “Top Series A SaaS companies in London”
Ranked by current headcount across Series A SaaS companies in London. Refreshed daily.
- 1Prolific· Greater London, England, United Kingdom
- Series A
- 987 employees
- Founded 2014
- 2proSapient· London, England, United Kingdom
- Series A
- 510 employees
- Founded 2017
- 3Ben· London, England, United Kingdom
- Series A
- 409 employees
- Founded 2019
- 4XYZ Reality· London, England, United Kingdom
- Series A
- 354 employees
- Founded 2017
- 5Threecolts· London, England, United Kingdom
- Series A
- 349 employees
- Founded 2021
- 6Beam· London, England, United Kingdom
- Series A
- 325 employees
- Founded 2017
- 7Eneba· London, England, United Kingdom
- Series A
- 307 employees
- Founded 2018
- 8Badoo· London Colney, England, United Kingdom
- Series A
- 298 employees
- Founded 2006
- 9Flawless· London, England, United Kingdom
- Series A
- 275 employees
- Founded 2018
- 10Dastgyr· London, England, United Kingdom
- Series A
- 247 employees
- Founded 2020
- 11Hutch· London, England, United Kingdom
- Series A
- 205 employees
- Founded 2011
- 12Car & Classic· London, England, United Kingdom
- Series A
- 189 employees
- Founded 2005
- 13VEED· London, England, United Kingdom
- Series A
- 184 employees
- Founded 2018
- 14Isometric· London, England, United Kingdom
- Series A
- 178 employees
- Founded 2022
- 15Shufti· London, England, United Kingdom
- Series A
- 173 employees
- Founded 2016
- 16Muzz· London, England, United Kingdom
- Series A
- 170 employees
- Founded 2015
- 17Provar· Greater London, England, United Kingdom
- Series A
- 164 employees
- Founded 2014
- 18Omnea· London, England, United Kingdom
- Series A
- 162 employees
- Founded 2022
- 19Zinc· London Area, United Kingdom
- Series A
- 161 employees
- Founded 2017
- 20tiney· London, England, United Kingdom
- Series A
- 159 employees
- Founded 2018
- 21Dengage· London, England, United Kingdom
- Series A
- 159 employees
- Founded 2018
- 22AntWorks· London, England, United Kingdom
- Series A
- 154 employees
- Founded 2015
- 23Mumsnet· London, England, United Kingdom
- Series A
- 143 employees
- Founded 2000
- 24Vega· London, England, United Kingdom
- Series A
- 143 employees
- Founded 2022
- 25GSS - Global Screening Services· London, England, United Kingdom
- Series A
- 142 employees
- Founded 2021
Find engineers at Series A SaaS companies in London
Searching for “engineers at top Series A SaaS companies in London” surfaces this slice of the market. The list above ranks SaaS companies headquartered in London whose latest disclosed round is Series A, by current headcount, drawn from public LinkedIn and Crunchbase records. With 258 matching companies in our index, this is a tight read on where the SaaS talent in London is heating up.
Three filters at once narrows the field hard. The companies that survive all three — Series A, SaaS, 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 SaaS’s next operators and angel investors.
Refolk converts this list into a live search. Ask for “senior engineers at Series A SaaS companies in London hiring” or “founders of Series A SaaS 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 07:53:32 GMT
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