Ethereum scaling infrastructure developer Spire Labs raised $7 million in a seed round co-led by Maven 11 Capital and Anagram, with participation from a16z Crypto Startup Accelerator, Digital Currency Group, Bankless Ventures, Volt Capital, Finality Capital, and others. Angel investors also participated in the round, including Nick White and Jacob Arluck of Celestia Labs and Amrit Kumar and Anthony Sassano of AltLayer.