John Neis joined Clarevia in 1985, serving as Executive Managing Director from 2000 to 2021, and continues as Partner. He has extensive board experience with portfolio companies, including current roles at Cellectar BioSciences and Delphinus Medical Technologies.
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Raising a pre-seed or seed round? We write $1M to $5M first checks and help founders with distribution. A partner reads every deck.
Send your deckJohn Neis joined Clarevia in 1985, serving as Executive Managing Director from 2000 to 2021, and continues as Partner. He has extensive board experience with portfolio companies, including current roles at Cellectar BioSciences and Delphinus Medical Technologies.
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Last updated 2026-10-15. Is this you? Ask for a correction.