Fifth Door

San Francisco, CA · Founded 2025 · Privately Held (backing)

Developer of browser-based interactive experiences designed for the rapid deployment of digital game formats. Fifth Door is based in San Francisco, CA and was founded in 2025. Its last reported valuation was $104 million in Nov 2025. It has raised $20.5 million.

Last reported valuation

$104.0M

Oct 2026

Priced at

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Total raised

$20.5M

Last round

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How much has Fifth Door raised?

$20.5Macross 0 recorded rounds

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Fifth Door investors

8 investors are on record for Fifth Door, including Y Combinator, Rebel Fund, Felicis and Offline Ventures.

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Frequently asked about Fifth Door

How much has Fifth Door raised?: Fifth Door has raised $20.5M in total across 0 recorded funding rounds.