Blocknative
Once among Ethereum's biggest block builders; it ended as a Deloitte acqui-hire
A San Francisco company selling real-time mempool monitoring, gas-price estimation and transaction-management APIs to wallets, protocols and traders, which also ran an Ethereum MEV relay and block builders after the Merge.
- Capital raised (announced, sum of rounds)
- Estimated
Recorded announced backing; this is separate from cash received, customer deposits and money recovered.
Funding
| Round | Date | Announced | Investors |
|---|---|---|---|
| Seed | 2020 | Not disclosed | |
| Series A | 2021 | ||
| Series A-1 | 2022 |
Announced is what was said at the time. Cash actually received is rarely disclosed and is not assumed to match.
People
| Name | Role | Period | Now | Last checked |
|---|---|---|---|---|
| Matt Cutler | — | Newly at Deloitte; previously founder and CEO of Blocknative | Oct 2026 |
Timeline
14 July 2021
The chief executive said annual recurring revenue had risen 1,500% over the prior year and planned to double the 20-person staff by the end of 2021.
September 2022
15 December 2022
Fortune reported the chief executive saying the company was making only fractions of an ETH per block won and that the economics of block building were only beginning to materialize.
27 September 2023
The chief executive told CoinDesk the business had not delivered on the company's economic expectations. Its other data products continued.
9 October 2023
CoinDesk reported a reduction of about a third of the workforce, leaving 24 people. The CEO said other services would continue; this was not the later end of the APIs.
19 May 2026
19 June 2026
The date given in independent reports and on the company homepage. The company's blog post, as retrieved later, gives 12 June instead.
How it ended
Acquired
On 19 May 2026 chief executive Matt Cutler announced that the Blocknative team had joined Deloitte and that, as a consequence, the company's APIs and its Gas Network oracle would be wound down, with services running only until June. The company said Blocknative Corporation was ceasing operations. No deal terms were disclosed.
Still alive
Open spot
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Sources
12 sources behind this page.
- 1Blocknative joins Deloitte · Blocknative (company blog, retrieved after services ended) · May 2026
- 2Blocknative (homepage carrying the Deloitte announcement) · Blocknative (company website, retrieved after services ended)
- 3Blocknative Raises $12M to Follow Crypto Transactions 'In-Flight' · CoinDesk · Jul 2021
- 4Blocknative reduces headcount after relay suspension · CoinDesk · Oct 2023
- 5Blocknative to Suspend MEV-Boost Relay After Economics Fail to 'Materialize' · CoinDesk · Sep 2023
- 6Web3 Infrastructure Firm Blocknative Raises $15M for Ethereum Block Building Market · CoinDesk · Dec 2022
- 7Blocknative, Startup that Monitors In-flight Transactions, Raises $12M · Coinspeaker
- 8Deloitte absorbs Blocknative team as crypto infra firm winds down · crypto.news · May 2026
- 9Post-Merge Ethereum Block Builder Blocknative Raises $15 Million · Decrypt · Dec 2022
- 10Blocknative raises $15 million to provide global infrastructure to Ethereum · Fortune · Dec 2022
Show 2 moreShow fewer
- 11Deloitte absorbs Blocknative team as crypto infra firm winds down APIs and Gas Network · The Block · May 2026
- 12X profile of @mcutler (Matt Cutler) · twitterapi.io (X API), retrieved 3 October 2026
Every figure above is clickable and opens the sources behind it. Copies were stored when each source was read, so a citation still resolves after the page it came from is gone.