Series A Blockchain companies in London

Companies building L1s, L2s, wallets, infra, and apps on public blockchains. Filtered to Series A-stage companies headquartered in London.

Built from a search like: “Top Series A Blockchain companies in London”

Ranked by current headcount across Series A Blockchain companies in London. Refreshed daily.

1
PIB Insurance Brokers· London, England, United Kingdom
- Series A
- 543 employees
- Founded 2014
2
R3· London, England, United Kingdom
- Series A
- 379 employees
- Founded 2015
3
Mercuryo· London, England, United Kingdom
- Series A
- 310 employees
- Founded 2018
4
BCB Group· London, England, United Kingdom
- Series A
- 210 employees
- Founded 2017
5
Mojo Mortgages· London, England, United Kingdom
- Series A
- 208 employees
- Founded 2016
6
ZILOTM· London, England, United Kingdom
- Series A
- 178 employees
- Founded 2020
7
Blink Payment· London, England, United Kingdom
- Series A
- 135 employees
- Founded 2011
8
Deblock· London, England, United Kingdom
- Series A
- 127 employees
- Founded 2022
9
wamo· London, England, United Kingdom
- Series A
- 123 employees
- Founded 2021
10
Elwood· London, England, United Kingdom
- Series A
- 112 employees
- Founded 2018
11
Titanbay· London, England, United Kingdom
- Series A
- 110 employees
- Founded 2019
12
S64· Greater London, England, United Kingdom
- Series A
- 107 employees
- Founded 2021
13
Novatus Global· London, England, United Kingdom
- Series A
- 105 employees
- Founded 2019
14
Paydock· Greater London, England, United Kingdom
- Series A
- 96 employees
- Founded 2015
15
Neudata· London, England, United Kingdom
- Series A
- 94 employees
- Founded 2016
16
Parfin· London, England, United Kingdom
- Series A
- 81 employees
- Founded 2019
17
Yaspa· London, England, United Kingdom
- Series A
- 77 employees
- Founded 2017
18
Arabesque· London, England, United Kingdom
- Series A
- 73 employees
- Founded 2013
19
Future Planet Capital· London, England, United Kingdom
- Series A
- 71 employees
- Founded 2015
20
ONERWAY· London, England, United Kingdom
- Series A
- 71 employees
- Founded 2017
21
Weavr.io· London, England, United Kingdom
- Series A
- 68 employees
- Founded 2018
22
Kody· London, England, United Kingdom
- Series A
- 68 employees
- Founded 2018
23
Saturn· London, England, United Kingdom
- Series A
- 68 employees
- Founded 2023
24
Goji, Euroclear group· Whitechapel, England, United Kingdom
- Series A
- 65 employees
- Founded 2015
25
Shieldpay· London, England, United Kingdom
- Series A
- 62 employees
- Founded 2017

Find engineers at Series A Blockchain companies in London

Searching for “engineers at top Series A Blockchain companies in London” surfaces this slice of the market. The list above ranks Blockchain companies headquartered in London whose latest disclosed round is Series A, by current headcount, drawn from public LinkedIn and Crunchbase records. With 122 matching companies in our index, this is a tight read on where the Blockchain talent in London is heating up.

Three filters at once narrows the field hard. The companies that survive all three — Series A, Blockchain, 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 Blockchain’s next operators and angel investors.

Refolk converts this list into a live search. Ask for “senior engineers at Series A Blockchain companies in London hiring” or “founders of Series A Blockchain 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

Refolk pulled Blockchain companies headquartered in London whose latest disclosed funding round is Series A from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 3 employees. The list refreshes once a day.

Last refreshed: Thu, 07 May 2026 09:02:55 GMT

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