Principal
Cowboy VenturesCheck size: Cowboy Ventures does not publish a standard current check-size range on its official site.
Jonny Nirenberg invests or supports investments through Cowboy Ventures's published strategy: Back technology-driven, venture-scale North American companies before their seed round and provide hands-on support across talent, product and go-to-market.
Trailblazing founders targeting large or growing markets, often pre-product, who value a trusted and deeply collaborative early investor.
Companies beyond the seed window, without a technology-driven solution or without the potential for a venture-scale outcome are less aligned.
Share materials before the meeting and make the customer problem, market, founder insight, early learning and desired hands-on support concrete.
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Jonny Nirenberg is listed by Cowboy Ventures as Principal. Joined in 2026 to invest in early AI applications and data infrastructure after Company Ventures and The Chernin Group.