Blockchange Ventures

Blockchange Ventures Blockchange Ventures, founded in 2017 in New York and led by Managing Partner Ken Seiff, has made 76 investments across blockchain protocols and applications. The portfolio includes major Layer 1 investments. Solana, Polkadot, Filecoin, Flow, Mina, and Near. alongside application layer companies like Audius, Figure, and Skale. The latest investment in TestMachine's Series A (December 2025) shows continued deployment. The small team of 4 emphasizes hands-on involvement, and