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SilverCircle

Seed Series A

Investment community pooling capital from founders, operators, and angels who actively work portfolio companies' odds of success, not just fund them.

San Francisco
AI/ML · Fintech +7
Network-Driven · Early-Stage

Silverton Partners

Seed Series A

Texas-based early-stage VC firm founded in 2006, backing Seed and Series A founders building technology companies across enterprise, consumer, and fintech.

Austin
SaaS/Software · Enterprise +5
Most Active · Early Stage

Simon Capital

Seed Series A

Düsseldorf-based family-backed VC investing in Seed to Series A startups across food, health, and SaaS with a focus on sustainability and the next generation.

Düsseldorf
FoodTech · HealthTech +5
Corporate VC · Thesis-Driven

SineWave Ventures

Seed Series A Series B

Early-stage VC firm investing in enterprise and public sector technologies across cybersecurity, AI/ML, computing, and data infrastructure

San Francisco · Arlington +1
Cybersecurity · AI/ML +6
Thesis-Driven · Network-Driven

Singtel Innov8

Seed Series A Series B

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.

Singapore · San Francisco +2
Cybersecurity · AI/ML +4
Corporate VC · Multi-Stage

Singular

Seed Series A Series B

Partnering with Europe's next generation of high velocity entrepreneurs

Paris · London
AI/ML · SaaS/Software +5
High-Velocity · Europe

Singularity Capital

Seed Series A

Seed-stage VC backing disruptive tech companies across global markets, concentrating capital as early investments gain traction. Over $2.5B in private market investments.

Tucson
DeepTech · SaaS/Software +7
Thesis-Driven · DeepTech

Sinovation Ventures

Seed Series A Series B

Leading Chinese technology VC founded by Dr. Kai-Fu Lee with $3B AUM across ten USD and RMB funds, backing 500+ companies in AI, consumer tech, and enterprise software.

Beijing · Hong Kong
AI/ML · DeepTech +5
China VC · Multi-Stage

Sip & Bite Capital

Seed Series A

Istanbul-based fund investing exclusively in Turkey's food and beverage sector, backing local brands with capital, operational support, and marketing expertise.

Istanbul
FoodTech · F&B +2
Early Stage · Operator-Led

Sirona Capital

Seed Series A Series B

Investing in the future of healthcare innovation and therapeutics

George Town
Healthcare · Biotechnology +3
Bio/Health · Healthcare

SiteGround Capital

Seed Series A

Family office backed by SiteGround.com founders providing patient capital to deep tech, climate, and biotech startups globally.

Sofia
DeepTech · ClimateTech +6
Family Office · Early Stage

SixThirty Ventures

Seed Series A

St. Louis-based global VC and accelerator connecting startups in fintech, insurtech, cybersecurity, and digital health with corporate institutions.

St. Louis
Fintech · InsurTech +2
Network-Driven · Operator-Led

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Skeleton Key

Seed Series A

San Francisco firm led by Harvard PhD scientist Ann Lai, backing "ScienceTech" platforms that accelerate scientific discovery from seed onward.

Boston
ScienceTech · DeepTech
Solo GP · Thesis-Driven

Skip Capital

Seed Series A Series B

Australian private fund co-founded by Atlassian's Scott Farquhar investing in technology ventures and infrastructure, with a portfolio spanning SaaS, AI, fintech, and deep tech.

Sydney
SaaS/Software · AI/ML +5
Multi-Stage · Operator-Led

Sky9 Capital

Seed Series A Series B

Supporting disruptive technologies and outstanding innovators globally

San Francisco · Singapore +1
AI for Consumer/Prosumer · AI Hardware & Technology +14
China-Focused · AI/ML

SkyRiver Ventures

Seed Series A

Boston-area deep tech VC backing early-stage founders in AI, robotics, cybersecurity, climate, and health across North America and Asia.

Boston
DeepTech · AI/ML +5
Global VC · Early Stage

Skyview Ventures

Seed Series A

Renewable energy investor backing early-stage startups across solar, EV infrastructure, environmental commodities, and carbon markets in North America.

Nashville
ClimateTech · AgTech +7
Early Stage · Climate-Focused

Skywell Capital Partners

Seed Series A Series B

Multi-stage global VC whose portfolio spans four unicorns (Netskope, Toss, Rappi, ManyChat), backing founders across fintech, AI, and marketplaces.

Tel Aviv
Fintech · SaaS/Software +4
Multi-Stage · Global VC

Smarter Ventures

Seed Series A

Dutch evergreen VC fund investing in early-stage tech startups, focused on AI, blockchain, and SaaS with founder-friendly terms and no carried interest.

Amsterdam · Breda
AI/ML · Blockchain +4
Founder-Led · Operator-Led

SnackFutures Ventures

Seed Series A Series B

Mondelēz's corporate VC arm, investing off the Oreo and Ritz maker's balance sheet in $20M+ revenue snack scale-ups it plans to acquire.

East Hanover
Future of Snacking · Snacks +7
Corporate VC · Multi-Stage

SNAK Venture Partners

Seed Series A

Seed-stage investor in category-defining digital marketplaces

Chicago
Category-Defining Digital Marketplaces · B2B Marketplaces +7
Category-Defining Digital Marketplaces · Seed VC

SNR Ventures

Seed Series A

Principles-driven builders backing ambitious founders across software, robotics, and biology

San Francisco
AI-driven Innovation · Software Automation +8
AI-driven Innovation · DeepTech

Socium Ventures

Seed Series A Series B

Atlanta-based evergreen venture fund backed by Cox Enterprises with $600M in permanent capital, investing across venture, growth, and late-stage in AI, enterprise software, and deep tech.

Atlanta
AI/ML · SaaS/Software +5
Corporate VC · Multi-Stage

Sofinnova Investments

Seed Series A Series B

Clinical-stage biopharma investor with ~$4.6B AUM, backing late preclinical and clinical therapeutics in oncology, neurology, and women's health.

Menlo Park · Boston +1
Therapeutics · BioTech +6
Bio/Health-Focused · Multi-Stage

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