Best Seed SaaS Venture Capital Firms

Browse 4,135 venture capital firms that invest in SaaS startups at the Seed stage, ranked by new investments on record since 2025. Every firm is verified — explore their thesis, check size, and portfolio, then get matched with the best-fit investors for your startup.

Verified Seed SaaS VC firms

Optimizer Ventures

Invests at the intersection of productivity and enterprise software, assisting teams to improve workflows through SaaS tools.

  • Other
  • SaaS
  • Enterprise
  • Seed
  • $150K – $1.0M
  • 2 portfolio companies

Optimus Ventures

Focuses on early-stage technology companies leveraging AI to create scalable SaaS solutions.

  • SaaS
  • AI / ML
  • Enterprise
  • Pre-Seed, Seed
  • $1.0M – $3.0M
  • Austin, TX
  • 2 portfolio companies

Optix Ventures

Invests in AI-powered infrastructure software enabling scalable enterprise workflows, with focus on industries undergoing digital transformation.

  • Other
  • SaaS
  • Pre-Seed, Seed
  • $250K – $2.5M
  • San Francisco, CA
  • 2 portfolio companies

Opto

AI-focused venture fund built around foundational technologies, infrastructure, developer tools, and specialized frameworks. The strategy is aimed at software layers that underpin enterprise AI adopti...

  • AI / ML
  • Developer Tools
  • Climate / Energy
  • Pre-Seed, Seed
  • 13 portfolio companies

Oqal Angel Investors

Saudi angel investing network focused on funding early-stage businesses in the Kingdom across multiple sectors.

  • Other
  • Fintech
  • Enterprise
  • Pre-Seed, Seed
  • Riyadh, Saudi Arabia
  • 11 portfolio companies

Orbit Growth Partners

Supports e-commerce innovations that revolutionize digital selling and multi-channel retail operations.

  • Other
  • Marketplace
  • SaaS
  • Seed
  • $300K – $800K
  • New York, NY
  • 13 portfolio companies

Orbit Labs

Orbit Labs backs founders building productivity-focused B2B SaaS tools with AI/ML integration.

  • SaaS
  • Other
  • Enterprise
  • Pre-Seed, Seed
  • $300K – $1.5M
  • San Francisco, CA
  • 39 portfolio companies

Orbit Partners

Orbit Partners invests in startups utilizing AI to enhance efficiency in sales and business operations within SMBs.

  • AI / ML
  • Other
  • SaaS
  • Pre-Seed, Seed
  • $400K – $2.0M
  • Toronto, Canada
  • 5 portfolio companies

Orbit Startups

Invests in early-stage companies in Asia and emerging markets using AI to solve high-impact problems in visual data intelligence, logistics, and operational efficiency.

  • AI / ML
  • SaaS
  • Other
  • Pre-Seed, Seed
  • $50K – $250K
  • Singapore
  • 2 portfolio companies

Orbital Insight Ventures

Focuses on investing in early-stage aerospace and defense startups that harness cutting-edge technologies.

  • Other
  • Developer Tools
  • SaaS
  • Seed
  • $1.0M – $3.0M
  • Denver, CO
  • 6 portfolio companies

Orbital Venture Partners

Orbital specializes in data-driven B2B SaaS startups with global scalability potential, particularly CRM and customer retention platforms.

  • SaaS
  • Other
  • Pre-Seed, Seed
  • $200K – $3.0M
  • London, UK
  • 1 portfolio company

Orbx Ventures

Orbx Ventures focuses on early-stage investments in B2B SaaS and AI startups, with an emphasis on companies building revenue-generation tools for marketing and sales teams.

  • SaaS
  • AI / ML
  • Other
  • Pre-Seed, Seed
  • $250K – $1.0M
  • Austin, TX
  • 2 portfolio companies

Orca Ventures

Orca Ventures focuses exclusively on early-stage B2B SaaS companies solving industry-specific challenges.

  • SaaS
  • Seed
  • $1.0M – $3.0M
  • Austin, TX
  • 2 portfolio companies

OrchestrAI Ventures

Invests exclusively in AI orchestration tools and DevOps workflows targeting enterprise environments.

  • Other
  • Developer Tools
  • SaaS
  • Pre-Seed, Seed
  • $250K – $1.5M
  • Berlin, Germany
  • 2 portfolio companies

OrderDash Ventures

Focuses on scalable B2B SaaS solutions transforming restaurant operations and supporting independent operators with technological innovations.

  • Other
  • SaaS
  • Food / AgTech
  • Pre-Seed, Seed
  • $500K – $3.0M
  • Chicago, IL
  • 2 portfolio companies

Ordinate Ventures

Focused on pre-seed and seed investments in enterprise-scale data and developer infrastructure for hybrid/multi-cloud ecosystems.

  • Developer Tools
  • Other
  • SaaS
  • Pre-Seed, Seed
  • $250K – $2.0M
  • Boston, MA
  • 1 portfolio company

Origin Ventures

Focused on early-stage B2B SaaS and marketplace startups in underrepresented hubs including the Midwest.

  • Marketplace
  • SaaS
  • Seed, Series A
  • $500K – $4.0M
  • Chicago, IL, USA
  • 10 portfolio companies

Orion Field Ventures

Focuses exclusively on early-stage Australian and APAC startups innovating in telecom infrastructure and workflow tools powered by AI and SaaS.

  • Other
  • AI / ML
  • SaaS
  • Pre-Seed, Seed
  • $500K – $2.5M
  • Sydney, Australia
  • 5 portfolio companies

Osage Venture Partners

Focus on B2B SaaS companies with strong technical teams solving industry-specific problems.

  • SaaS
  • Enterprise
  • Seed, Pre-Seed
  • $250K – $1.0M
  • Bala Cynwyd, PA
  • 2 portfolio companies

Oui Capital

Oui Capital backs early-stage African tech and tech-enabled companies, particularly in digital commerce, enterprise software, human capital (including health and education), and fintech.

  • Other
  • Fintech
  • SaaS
  • Pre-Seed, Seed
  • $60K – $750K
  • Lagos, Nigeria
  • 52 portfolio companies

Outbound Ventures

Focused exclusively on early-stage startups building transformative sales tech and revenue operations tools, with a particular interest in AI applications.

  • Other
  • SaaS
  • Pre-Seed, Seed
  • $500K – $3.0M
  • Austin, TX
  • 54 portfolio companies

Outlander VC

Invests in deeply technical founders building B2B software solutions, with a focus on those outside major startup hubs.

  • AI / ML
  • SaaS
  • Enterprise
  • Pre-Seed, Seed
  • $250K – $750K
  • Austin, TX, USA
  • 21 portfolio companies

Outreach Ventures

Invests in early and growth-stage companies enabling enterprise sales teams to achieve higher effectiveness and scalability.

  • Other
  • SaaS
  • Seed, Series A
  • $1.0M – $5.0M
  • Chicago, IL
  • 1 portfolio company

Outrun Ventures

Outrun Ventures focuses on B2B SaaS solutions for SMBs, emphasizing companies that streamline workflows or improve customer interactions using automation.

  • SaaS
  • Other
  • Pre-Seed, Seed
  • $250K – $3.0M
  • Austin, TX
  • 2 portfolio companies

Showing 2617–2640 of 4135 firms — page 110 of 173.

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