ChainCatcher report: Ethereum block builder Eureka Labs has announced the completion of a $6.7 million seed round led by Spark Capital and Collider Ventures. The company has introduced the concept of “programmable blocks,” incorporating executable logic at the block-building stage to enable blocks not only to bundle transactions but also to perform more complex functions such as temporary fund access, advanced computations, and finer-grained transaction ordering. Founded in December 2024, Eureka Labs has become the fourth-largest Ethereum block builder, though it holds only about 1.5% market share, still significantly behind leading builders. The funding round was completed in two stages: $4.7 million raised in April 2025 and an additional $2 million in June. The company stated that the proceeds will be used to expand its block-building technology capabilities and drive adoption of “programmable blocks” within the Ethereum ecosystem.
Eureka Labs, an Ethereum block builder, raises $6.7M in a seed round led by Spark Capital and Collider Ventures.
ChaincatcherShare
Summary
Eureka Labs, an Ethereum block builder, has raised $6.7 million in a seed round led by Spark Capital and Collider Ventures. The company introduced "programmable blocks," enabling advanced transaction ordering and complex on-chain actions. Founded in December 2024, Eureka Labs is now the fourth-largest Ethereum block builder, with a 1.5% market share. The funding was delivered in two tranches—$4.7 million in April 2025 and $2 million in June 2025. The capital will be used to expand its block-building technology and promote awareness of its new features within the Ethereum ecosystem.
Source:Show original
Disclaimer: The information on this page may have been obtained from third parties and does not necessarily reflect the views or opinions of KuCoin. This content is provided for general informational purposes only, without any representation or warranty of any kind, nor shall it be construed as financial or investment advice. KuCoin shall not be liable for any errors or omissions, or for any outcomes resulting from the use of this information.
Investments in digital assets can be risky. Please carefully evaluate the risks of a product and your risk tolerance based on your own financial circumstances. For more information, please refer to our Terms of Use and Risk Disclosure.