Slow Ventures
Slow Ventures is a generalist early-stage venture capital firm founded in 2011 and headquartered in San Francisco, with additional offices in Boston and New York. The firm leads pre-seed and seed rounds, writing typical checks of roughly $500K to $3M (averaging around $1.75M), and explicitly rejects thematic investing in favor of backing experienced founders with deep, hard-won domain expertise and genuine conviction. Slow's thesis funds rapid, high-stakes experimentation: capital that tests a novel risk or hypothesis whose validation dramatically increases a company's value and that cannot easily be funded another way. As a generalist, Slow invests across consumer and social, fintech, SaaS and enterprise/developer tools, healthcare, crypto/web3, the creator economy, and real-world operations (SMB acceleration, buyouts/rollups, franchising). The firm runs a dedicated Creator Fund backing creator-led businesses, and has deployed roughly $800M+ across multiple fund vintages since inception. Notable investments include Pinterest, Slack, Robinhood, Nextdoor, Postmates, Opendoor, Wealthfront, Casper, PillPack, Airtable, Gusto, and Solana.
Slow Ventures has 143 portfolio companies tracked on the APIs.io network, of which 24 (17%) publish APIs indexed here.
Its highest-rated API providers on the network are amplitude, slack, giphy, lever, goshippo.
Portfolio on the Network
Portfolio companies that publish APIs indexed on APIs.io, grouped by their API Evangelist rating. Exemplar and Strong are expanded by default.
Exemplar 1 Complete, well-documented, and agent-ready
Strong 1 Solid coverage with minor gaps
Thin 10 Limited public surface area
Emerging 6 Early or largely undocumented
Rest of Portfolio
119 further portfolio companies that don’t yet have a provider page on the network.
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Properties
Portfolio
Where the firm publishes its investments
Firm
The firm itself