Jin Chang is the founder of Fieldguide. Fieldguide has raised $125M, latest Series C $75M (2026). SaaS · San Francisco, CA. Backed by 8VC and Joe Lonsdale.
Jin Chang is the founder of Fieldguide. Fieldguide operates in SaaS and is based in San Francisco, CA. Fieldguide has raised $125M, latest Series C $75M (2026). Backers on record include Joe Lonsdale, 8VC.
This founder profile draws on disclosed rounds, filings and investor records in the StartupFundraising database and is updated as new funding is recorded. Founders raising now use profiles like this one to study comparable SaaS journeys in San Francisco — who backed them, at what stage, and how much they raised.
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