Late-stage venture Data infrastructure companies in London
Databases, warehouses, lakes, pipelines, and observability for production data. Filtered to Late-stage venture-stage companies headquartered in London.
Built from a search like: “Top Late-stage venture Data infrastructure companies in London”
Ranked by current headcount across Late-stage venture Data infrastructure companies in London. Refreshed daily.
- 1Ciklum· London, England, United Kingdom
- Series unknown
- 3k employees
- Founded 2002
- 2VTEX· London, England, United Kingdom
- Series unknown
- 1.4k employees
- Founded 2000
- 3Testronic· Croydon, England, United Kingdom
- Series unknown
- 1.3k employees
- Founded 1998
- 4AND Digital· London, England, United Kingdom
- Series unknown
- 1k employees
- Founded 2014
- 5Quantexa· London, England, United Kingdom
- Series F
- 892 employees
- Founded 2016
- 6GoCardless· Greater London, England, United Kingdom
- Series G
- 834 employees
- Founded 2011
- 7Synthesia· London, England, United Kingdom
- Series E
- 704 employees
- Founded 2017
- 8Telos Corporation· Ashburn, Virginia, United States
- Series unknown
- 661 employees
- Founded 1971
- 9PTS· London, England, United Kingdom
- Series unknown
- 597 employees
- Founded 1983
- 10Ascent· London Area, United Kingdom
- Series unknown
- 548 employees
- Founded 2000
- 11Thought Machine· London, England, United Kingdom
- Series unknown
- 518 employees
- Founded 2014
- 12Forterro· London, England, United Kingdom
- Series unknown
- 474 employees
- Founded 2012
- 13imimobile (part of Webex)· London, England, United Kingdom
- Series unknown
- 458 employees
- Founded 1999
- 14Smart Communications.· London, England, United Kingdom
- Series unknown
- 444 employees
- Founded 2004
- 15NJVC-LLC· Lorton, Virginia, United States
- Series unknown
- 440 employees
- Founded 2000
- 16Quoreka· London, England, United Kingdom
- Series unknown
- 349 employees
- Founded 2004
- 17Six Degrees· London, England, United Kingdom
- Series unknown
- 311 employees
- Founded 2011
- 18Devtech· London, England, United Kingdom
- Series unknown
- 296 employees
- Founded 2012
- 19TrueLayer· London, England, United Kingdom
- Series unknown
- 276 employees
- Founded 2016
- 20Callsign· London Colney, England, United Kingdom
- Series unknown
- 273 employees
- Founded 2011
- 21Ocean Technologies Group· London, England, United Kingdom
- Series unknown
- 267 employees
- Founded 2020
- 2210x Banking· London, England, United Kingdom
- Series unknown
- 252 employees
- Founded 2016
- 23Duco· London, England, United Kingdom
- Series unknown
- 239 employees
- Founded 2010
- 24INSTANDA· London, England, United Kingdom
- Series unknown
- 235 employees
- Founded 2012
- 25Spektrix· London, England, United Kingdom
- Series unknown
- 235 employees
- Founded 2007
Find engineers at Late-stage venture Data infrastructure companies in London
Searching for “engineers at top Late-stage venture Data infrastructure companies in London” surfaces this slice of the market. The list above ranks Data infrastructure companies headquartered in London whose latest disclosed round is Late-stage venture, by current headcount, drawn from public LinkedIn and Crunchbase records. With 213 matching companies in our index, this is a tight read on where the Data infrastructure talent in London is heating up.
Three filters at once narrows the field hard. The companies that survive all three — Late-stage venture, Data infrastructure, 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 Data infrastructure’s next operators and angel investors.
Refolk converts this list into a live search. Ask for “senior engineers at Late-stage venture Data infrastructure companies in London hiring” or “founders of Late-stage venture Data infrastructure companies in London who left in the last year” and Refolk returns a ranked shortlist with the evidence behind each match.
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Last refreshed: Thu, 07 May 2026 07:59:58 GMT
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