Scribble Ventures
San Francisco-based pre-seed and seed fund backing AI-native founders, led by operators from OpenAI, Meta, Twitter, and a16z with deep product and GTM expertise.
Scrum Ventures
Investing in startups across the U.S. and Japan to accelerate global growth
Secure Octane
San Francisco seed fund backing cybersecurity, cloud infrastructure, and AI startups across the US and Israel, co-investing alongside top-tier VCs.
SemperVirens Venture Capital
Early-stage B2B investor backing AI-enabled companies in healthcare, fintech, and workforce tech, using a proprietary ecosystem and operator network.
Sentinel Global
San Francisco-based multi-stage enterprise tech VC bridging founders and institutional adopters across AI, blockchain, supply chain, and open computing infrastructure.
Seraph Group
Structured angel fund and growth equity firm pooling 400+ accredited investors into diversified early-stage portfolios
Series X Capital
VC fund with exclusive rights to spin out and commercialize technologies from Alphabet's X moonshot factory into independent companies.
Seven Hill Ventures
Solo-GP fund from Twitter's first CISO, betting that only an ex-practitioner can properly judge which early cybersecurity products the market actually needs.
Seven Seven Six
Venture capital firm using technology and data to invest in early-stage founders
Seven Stars
Technology-focused investor backing digital transformation and innovative software
SF1
San Francisco-based pre-seed and seed fund backing AI-native founders from inception to IPO, led by solo GP Sudarshan (ItzSuds).
Shakti VC
Early-stage VC backing visionary founders pre-product to Series A
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Early-stage investor backing founders building dual-use technologies in AI, autonomy, cybersecurity, and space for commercial and national security markets.
Shine Capital
Partnering with creative, convincing, relentless entrepreneurs
Shorewind Capital
Early-stage VC investing in tech that advances humanity
Shrug Capital
Seed-stage fund backing culturally relevant consumer, creator, fintech, health, climate, and deep tech startups, led by Niv Dror and Moshe Lifschitz.
SignalFire
Data-driven VC backing founders with real-time insights
SilverCircle
Investment community pooling capital from founders, operators, and angels who actively work portfolio companies' odds of success, not just fund them.
SineWave Ventures
Early-stage VC firm investing in enterprise and public sector technologies across cybersecurity, AI/ML, computing, and data infrastructure
Singtel Innov8
Corporate VC arm of Singtel investing $1–5M from seed to early growth in 5G, cybersecurity, AI, green tech, and digital ASEAN startups. $500M AUM across two funds.
SJF Ventures
Impact investor since 1999 (formerly Sustainable Jobs Fund), writing $1-10M growth equity checks into clean energy, health, and circular economy.
Sky9 Capital
Supporting disruptive technologies and outstanding innovators globally
Slow Ventures
Investing at the center of technology and edges of science, society, culture
SLW - Lifecycle Capital
Growth debt and flexible capital provider to late-stage tech companies across the lifecycle. Arm of Silver Lake private equity.
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