Jack Dreifuss announces Impatient Ventures Fund I at $23.5M, oversubscribed from $20M target

Summary

Jack Dreifuss is announcing the close of Impatient Ventures Fund I at $23.5 million, oversubscribed from a $20 million target. The raise launched in February 2023, which Dreifuss describes as the bottom of the venture market.

The first fund is not the whole picture. Dreifuss ran roughly $30 million in SPVs before the fund and has done another $50–60 million alongside it, putting total AUM north of nine figures. One institutional anchor is a Boston-based endowment he describes as top-quartile — he can't name it publicly.

Portfolio construction

The fund is concentrated at 20 to 22 deals, already at 20 with a few slots remaining. Dreifuss runs a generalist strategy, though current deal flow skews toward robotics, deep tech, advanced manufacturing, and defense, with consumer as a permanent category. He has not done a web3 deal from the fund, though pre-fund stablecoin bets are ones he's watching.

His argument against specialist funds is structural: thematic focus tends to outperform only in Fund I because you're investing in whatever is fashionable at the moment. He points to web3-focused funds from three years ago as the cautionary example — branded around a theme and then forced to quietly pivot as the category faded.

What he underwrites

Dreifuss says he can't underwrite a business if he can't underwrite the founder first. His framework centers on what he calls "never uncertain, often wrong" — founders who hold convictions at 110% but update fast when new information arrives. He cites Mike Maples' line that 80% of Floodgate's best investments were pivots, arguing the early lifecycle of most companies is one continuous pivot anyway.

He flags quality revenue as the metric that matters most right now. With AI enabling rapid top-line inflation, he points to a case — he believes it was 11X — that reached $10 million in revenue in roughly three weeks, only to see 90% churn. The founders he backs need to know what healthy unit economics look like, even before the business model is fully defined.

One portfolio example he discusses is Shink, a company supplying fish to Michelin-starred restaurants. Dreifuss backed the CEO when he had two college roommates and a plan to build autonomous fishing boats and fish-processing robots. The company graduated YC and spent years building in relative obscurity before tier-one investors followed. That arc — cold deal, no heat, long runway before recognition — is the pattern Dreifuss says he targets.