Funded Blockchain and Cryptocurrency Startups in London
The 32 London-based blockchain and cryptocurrency companies listed here span rounds closed between November 2023 and August 2025, with ten of those rounds…
The 32 London-based blockchain and cryptocurrency companies listed here span rounds closed between November 2023 and August 2025, with ten of those rounds dated to 2025 alone. Early-stage financing dominates the set: seed and pre-seed rounds account for 15 entries, and only Irys (Series A, $10M, August 2025) and BKN301 (Series B, $24M, April 2025) represent growth-stage milestones in the visible data.
The most anomalous data point is Boom's $500M raise in August 2024 — a figure that sits an order of magnitude above the $2M–$12M range seen across most other disclosed rounds. Nine companies listed undisclosed amounts, and three entries carry no round-type label at all. OpenTrade is the only company to appear twice, closing a $3M seed in April 2024 and a $4M seed in November 2024. Sub-sectors represented span DeFi infrastructure, crypto payments, blockchain gaming (Pixion Games, $12M, January 2025), privacy protocols, and tokenized real-world assets.
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Frequently asked
What are the largest disclosed rounds in this data set?
Boom raised $500M in a Series Unknown round in August 2024, a figure that dwarfs every other entry in the set. BKN301 follows with a $24M Series B closed in April 2025, and Pixion Games raised $12M in a Series Unknown round in January 2025. Most other disclosed deals fall in the $2M–$10M range.
How early-stage is London's funded blockchain cohort based on these records?
Seed and pre-seed rounds account for 15 of the 32 entries. Only two companies have progressed past seed stage in this visible set: Irys, which closed a $10M Series A in August 2025, and BKN301, which closed a $24M Series B in April 2025.
How many rounds have undisclosed amounts, and what does the disclosed range look like?
Nine of the 32 rounds list undisclosed amounts, including ThermAI (Angel, June 2025), Euler (Series Unknown, April 2025), and Mulder (Series Unknown, January 2025). Among disclosed rounds, deal sizes run from Kaldi's $100K seed in March 2025 up to Boom's $500M raise, with the bulk of disclosed deals sitting between $2M and $12M.
Which company appears more than once in this data set?
OpenTrade closed two visible seed rounds — $3M in April 2024 and $4M in November 2024 — making it the only company to appear twice in these 32 rows.
What sub-sectors do these companies represent within blockchain and crypto?
The set spans DeFi streaming and yield infrastructure (Sablier, Superfluid Finance, Rho Labs), crypto payments and cross-border remittances (SatoshiPay, Fiat Republic, Eversend, KoinKoin), blockchain gaming (Pixion Games), privacy protocols (Obscuro Labs, Keyring Network), and tokenized real-world asset markets (OpenTrade).
How does 2025 funding activity compare to 2024 in this data?
Ten of the 32 visible rounds closed in the first eight months of 2025, versus 19 rounds across all of 2024. The 2025 cohort includes the two largest growth-stage deals in the set — BKN301's $24M Series B in April and Irys's $10M Series A in August.
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