Partner, Co-CIO
Primary Venture PartnersCheck size: Primary does not publish a standard check-size range; its current fund is $625M and the firm reports $1.6B in AUM.
Ben Sun invests or supports investments through Primary Venture Partners's published strategy: Back founders at inception and seed across specialized technology domains, then deliver hands-on operating work in go-to-market, people, finance, design and company incubation.
Founders turning technically or commercially difficult ideas into new categories who want a deeply embedded, high-resource seed partner.
Primary remains focused on inception and seed; mature later-stage rounds without an early company-building role are outside the published core.
Show the non-obvious insight, specialist market context, initial proof, seed-stage constraints and the exact operating work Primary can help deliver.
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Ben Sun is a current Partner, Co-CIO at Primary Venture Partners, according to the firm's official roster. No additional biography is inferred where the firm does not publish role-specific detail.