Seed Venture Capital Firms

Browse 8,795 venture capital firms that actively invest at the Seed stage. Every firm is verified — explore their thesis, check size, and portfolio, then get matched with the best-fit investors for your startup.

Verified Seed VC firms

Side Door Ventures

Side Door Ventures focuses on emerging media & entertainment startups, particularly those empowering creative professionals or developing niche vertical marketplaces.

  • Other
  • Marketplace
  • AI / ML
  • Pre-Seed, Seed
  • $50K – $250K
  • Los Angeles, CA
  • 2 portfolio companies

SidePath Ventures

Focused on enabling innovative civic technologies and B2B SaaS solutions targeted at government agencies and local businesses.

  • Other
  • SaaS
  • Seed, Pre-Seed
  • $500K – $2.5M
  • Austin, TX
  • 2 portfolio companies

Sideband Ventures

Focuses on early-stage startups building next-gen semiconductor materials, RF components, and AI infrastructure technologies.

  • Other
  • Deep Tech
  • AI / ML
  • Pre-Seed, Seed
  • $250K – $3.0M
  • Austin, TX
  • 8 portfolio companies

Sideline Ventures

Investing in sports infrastructure startups across MENA to optimize fan experiences, ticketing, and logistics.

  • Other
  • Pre-Seed, Seed
  • $100K – $750K
  • Dubai, UAE
  • 2 portfolio companies

Siemens Venture Capital

Corporate venture arm focused on industrial automation, factory tech, IoT, and software adjacent to Siemens’ industrial ecosystem. Strong fit for companies integrating with plant systems and industria...

  • Other
  • Deep Tech
  • Healthcare
  • Seed, Series A
  • $2.0M – $20.0M
  • Munich, Bavaria
  • 8 portfolio companies

Siena Capital

Invests in early-stage marketplaces and companies innovating in beauty, consumer services, and booking/payment solutions.

  • Other
  • Pre-Seed, Seed
  • $250K – $3.0M
  • New York, NY
  • 2 portfolio companies

Sierra Ventures

Early-stage enterprise and infrastructure investor with focus on cloud and security.

  • Enterprise
  • Developer Tools
  • Security
  • Seed
  • $500K – $7.0M
  • San Mateo, CA
  • 19 portfolio companies

Sift Ventures

Sift Ventures specializes in backing next-generation marketplaces and SaaS-driven platforms disrupting legacy industries.

  • Marketplace
  • SaaS
  • Consumer
  • Pre-Seed, Seed, Series A
  • $500K – $5.0M
  • San Francisco, CA
  • 2 portfolio companies

Sightline Ventures

Specializes in investing in early-stage tech-enabled service providers focusing on retail infrastructure and SaaS solutions.

  • SaaS
  • Other
  • Real Estate
  • Pre-Seed, Seed
  • $250K – $1.0M
  • Austin, TX
  • 1 portfolio company

Sigma Prime Ventures

Focuses on innovative companies that leverage technology to transform their industries, with a strong interest in digital health innovations.

  • AI / ML
  • Healthcare
  • Enterprise
  • Seed, Series A
  • $1.0M – $5.0M
  • Boston, MA
  • 34 portfolio companies

Sigma TeleHealth Fund

Invests exclusively in seed-stage telehealth platforms addressing underserved medical conditions through technology-driven delivery models.

  • Other
  • SaaS
  • Seed
  • $750K – $3.0M
  • Salt Lake City, UT
  • 1 portfolio company

Signal Alpha Ventures

Focused on platforms leveraging AI to streamline B2B workflows, especially in sales and customer operations.

  • Other
  • Seed, Series A
  • $500K – $3.0M
  • Chicago, IL
  • 2 portfolio companies

Signal Boost Ventures

Focuses on cutting-edge B2B SaaS startups solving compliance and operational challenges with AI technologies.

  • SaaS
  • Other
  • Enterprise
  • Pre-Seed, Seed
  • $250K – $2.0M
  • Austin, TX
  • 5 portfolio companies

Signal Entertainment Ventures

Invests in companies innovating in content distribution, IP transactions, creator monetization, and video platforms.

  • Other
  • Marketplace
  • Seed
  • $1.0M – $3.0M
  • San Francisco, CA
  • 2 portfolio companies

Signal Freight Ventures

Backing AI and data-driven tools streamlining freight operations for mid-size carriers and brokers in the U.S.

  • Other
  • AI / ML
  • Developer Tools
  • Pre-Seed, Seed
  • $250K – $1.0M
  • Minneapolis, MN
  • 2 portfolio companies

Signal Hill Ventures

Focused on data-driven startups modernizing workflows in the B2B space, including analytics, sales strategies, and enterprise enablement tools.

  • SaaS
  • Other
  • Enterprise
  • Seed
  • $250K – $2.5M
  • Chicago, IL
  • 25 portfolio companies

Signal Horizon VC

Invests in early-stage startups leveraging AI and IoT solutions to disrupt industrial ecosystems with data-driven technologies.

  • Other
  • AI / ML
  • Developer Tools
  • Seed, Series A
  • $500K – $5.0M
  • Denver, CO
  • 1 portfolio company

Signal Lab Ventures

Investing in data-first companies harnessing machine learning and analytics to generate business intelligence.

  • Other
  • AI / ML
  • Developer Tools
  • Seed
  • $300K – $1.5M
  • Berlin, Germany
  • 13 portfolio companies

Signal Media Ventures

Invests exclusively in the next wave of digital media platforms and technologies.

  • Other
  • Seed
  • $500K – $2.5M
  • Chicago, IL
  • 1 portfolio company

Signal Partners Fund

Focuses on startups at the intersection of telecommunications, 5G infrastructure, and software-driven networks.

  • Other
  • Enterprise
  • Developer Tools
  • Pre-Seed, Seed
  • $750K – $3.0M
  • London, UK
  • 2 portfolio companies

Signal Quadrant Ventures

Invests in enterprise software startups specializing in security, compliance, and risk assessment, with a preference for enterprise-focused SaaS solutions.

  • SaaS
  • Other
  • Seed
  • $500K – $2.0M
  • Boston, MA
  • 2 portfolio companies

Signal Response Partners

Focuses on public safety and emergency response startups, investing in solutions saving lives at scale.

  • Other
  • Pre-Seed, Seed
  • $500K – $4.0M
  • Seattle, WA
  • 2 portfolio companies

Signal Spark Ventures

Backing early-stage founders building intelligent automation platforms and AI agents with a focus on enterprise applications and SaaS solutions.

  • Other
  • SaaS
  • Enterprise
  • Pre-Seed, Seed
  • $150K – $750K
  • Toronto, Canada
  • 2 portfolio companies

Signal Start Fund

Investing in early-stage GovTech solutions aiming to modernize and optimize public sector operations.

  • Other
  • AI / ML
  • SaaS
  • Seed
  • $500K – $2.5M
  • Austin, TX
  • 6 portfolio companies

Showing 7153–7176 of 8795 firms — page 299 of 367.

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