Deloitte announced on Tuesday that it had acquired Blocknative through a “talent acquisition-focused merger,” according to The Block. Financial terms were not disclosed, but the Big Four firm said the Blocknative team will now focus on driving Web3 innovation within its client ecosystem, plugging engineers and product staff into its existing blockchain and digital-assets practice. Meanwhile, Blocknative’s own infrastructure is being switched off: a banner on its website tells users the startup “is gradually ceasing operations,” with its transaction APIs and Gas Network services winding down and support expected only until June 19.
Blocknative’s mempool and gas tooling goes dark
Founded in 2018, Blocknative built its reputation on real-time mempool monitoring, gas-fee prediction and transaction management for Ethereum and other EVM chains. Its core products included APIs and SDKs that let wallets, protocols and traders subscribe to pending transactions, simulate execution, and dynamically adjust gas prices to boost inclusion odds and cut failed transactions. Over time, the company expanded into a Gas Network—a decentralized oracle system delivering real-time gas fee estimates across over 40 networks, including Ethereum mainnet, Arbitrum, Optimism, Polygon, Base, and more—plus a browser-based Gas Estimator extension used by power users.
Blocknative had previously raised at least $34 million from investors including Blockchain Capital and Foundry Group, and positioned itself as a key block builder and relay operator in Ethereum’s post-Merge MEV supply chain, at one point contributing over 17,000 blocks. The decision to shut down its commercial APIs and oracles rather than sell them to another infra provider underscores how competitive and margin-squeezed the crypto data and tooling market has become, particularly in a cycle marked by consolidation and pressure on venture-backed startups to find exits.
Deloitte’s crypto consolidation play
For Deloitte, the deal is another step in a years-long strategy of embedding blockchain expertise into its audit, tax and advisory businesses. It follows earlier partnerships with platforms like Waves and a steady build-out of crypto auditing, on-chain analytics and tokenization consulting for clients. The firm now markets digital-assets services ranging from smart-contract assurance to stablecoin accounting and proof-of-reserves attestations, and has been vocal about the need for “tech-enabled professional services” that combine traditional risk frameworks with native crypto engineering talent. Bringing the Blocknative team in-house gives Deloitte hands-on mempool, gas and transaction-simulation expertise for activities like protocol due diligence, MEV risk analysis and performance tuning for institutional clients deploying on public chains.
More broadly, the acquisition fits into a wave of consolidation across the crypto infrastructure stack, as traditional firms from exchanges to consultancies pick up distressed or sub-scale Web3 startups to accelerate their own roadmaps. Deloitte has not said whether it will preserve any of Blocknative’s public-facing tools; the announced June 19 sunset date for the API and Gas Network means developers relying on those services now face a tight migration window to alternative providers. For users, it is another reminder that even widely used crypto infrastructure can disappear quickly when strategic buyers care more about people than products—a dynamic likely to intensify as big consultancies, cloud vendors and financial institutions continue to expand their footprint in digital assets.