Pre-Seed SaaS Venture Capital Firms

Browse 3,200 venture capital firms that invest in SaaS startups at the Pre-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 Pre-Seed SaaS VC firms

Onstage Fund

Small European fund backing generative AI and B2B SaaS at the earliest stages. Well suited to software that automates business workflows and improves knowledge-work productivity.

  • Other
  • SaaS
  • AI / ML
  • Pre-Seed, Seed
  • $100K – $500K
  • Europe
  • 2 portfolio companies

Onyx Capital

Invests in crypto-enabled financial infrastructure enabling global money movement. Focused on early-stage startups in emerging markets.

  • Other
  • SaaS
  • Pre-Seed, Seed
  • $100K – $1.0M
  • London, UK
  • 2 portfolio companies

Opal Seed Fund

Opal Seed Fund specializes in pre-seed investments in fintech innovation targeted at underserved and high-growth markets globally, with an emphasis on payments and remittances.

  • Other
  • Fintech
  • SaaS
  • Pre-Seed, Seed
  • $50K – $300K
  • London, UK
  • 5 portfolio companies

Open Futures Fund

Open Futures Fund backs innovative startups in workplace transformations, productivity, and software solutions that reshape how we work.

  • Other
  • SaaS
  • Pre-Seed, Seed
  • $250K – $1.0M
  • London, UK
  • 2 portfolio companies

OpenAI Startup SPV V.

Pre-seed AI-focused vehicle investing in AI/ML and SaaS. The fund supports founders building innovative solutions with AI at the core.

  • AI / ML
  • Other
  • SaaS
  • Pre-Seed
  • US

OpenLP Tech Fund

Focused on early-stage B2B SaaS companies with a strong foothold in LegalTech or SecurityTech.

  • Other
  • SaaS
  • Security
  • Pre-Seed, Seed
  • $50K – $200K
  • Austin, TX
  • 5 portfolio companies

OpenOcean

OpenOcean backs European-founded, AI-driven companies that use data as a competitive moat, particularly in AI-enabled services and automation, scalable AI computation, and agentic infrastructure and d...

  • Deep Tech
  • SaaS
  • Developer Tools
  • Seed, Pre-Seed, Series A
  • $2.3M – $5.7M
  • Helsinki, Finland
  • 8 portfolio companies

OpenSource Foundry

Investing in open-source tools that empower developers and enterprise solutions at the pre-seed stage.

  • Other
  • Developer Tools
  • SaaS
  • Pre-Seed
  • $75K – $150K
  • San Francisco, CA
  • 20 portfolio companies

Openseed VC

Invests in operator-founders in Europe & Africa building early stage tech companies with strong domains in fintech, SaaS, AI, focusing also on future commerce, work and health.

  • Fintech
  • AI / ML
  • SaaS
  • Pre-Seed
  • Up to $150K
  • London, UK
  • 3 portfolio companies

Operate Studio

Provides early-stage operational capital and support to software and marketplace companies with small, scalable market entries.

  • SaaS
  • Marketplace
  • Other
  • Pre-Seed, Seed
  • $300K – $3.0M
  • Orange County, California
  • 1 portfolio company

Operational Analytics Fund

Focuses on funding next-gen operational analytics and AI-driven data tools for enterprise applications.

  • Other
  • AI / ML
  • Developer Tools
  • Seed, Pre-Seed
  • $300K – $4.0M
  • San Francisco, CA
  • 2 portfolio companies

Operative Capital

Invests in early-stage B2B SaaS startups that target operational teams and optimize workflows.

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

Operative Edge Fund

Operative Edge Fund focuses on startups creating next-gen workflow tools for mid-sized enterprises, with a specific emphasis on finance teams.

  • Other
  • Enterprise
  • SaaS
  • Pre-Seed, Seed
  • $500K – $2.0M
  • Paris, France
  • 2 portfolio companies

Operator Stack

Focuses on operational-heavy B2B startups building scalable software platforms in SaaS or marketplaces.

  • SaaS
  • Marketplace
  • Fintech
  • Seed, Pre-Seed
  • $250K – $2.0M
  • Los Angeles, CA
  • 2 portfolio companies

Operator Syndicate

Operator-led micro fund focusing on early-stage B2B SaaS companies, particularly in productivity, leadership, and organizational tools.

  • SaaS
  • Other
  • Pre-Seed, Seed
  • $50K – $250K
  • San Diego, CA
  • 1 portfolio company

Operators Guild Ventures

Operator-led investing with a bias toward practical software businesses. Relevant for products that solve deep workflow problems for specific customer segments.

  • SaaS
  • Other
  • Pre-Seed, Seed
  • New York, NY
  • 1 portfolio company

Operators Studio

Emerging manager backing technical founders building software and AI products. A useful source of smaller, operator-led pre-seed checks for workflow automation businesses.

  • AI / ML
  • SaaS
  • Enterprise
  • Pre-Seed
  • $100K – $500K
  • London, United Kingdom
  • 39 portfolio companies

Ops Innovation Fund

Specializes in funding early-stage automation technologies that optimize business operations for mid-market enterprises.

  • SaaS
  • Other
  • Enterprise
  • Pre-Seed, Seed
  • $500K – $2.5M
  • Chicago, IL
  • 23 portfolio companies

OpsMaven Capital

Invests in early-stage RevOps and operational SaaS companies aiming to transform revenue-generating processes for mid-market and enterprise customers.

  • Other
  • SaaS
  • Enterprise
  • Pre-Seed, Seed
  • $750K – $2.5M
  • Seattle, WA
  • 6 portfolio companies

Optimize Venture Partners

Focused on backing wellness and performance-driven SaaS products operating at the intersection of consumer and B2B.

  • Healthcare
  • Other
  • SaaS
  • Pre-Seed, Seed
  • $500K – $2.5M
  • 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

Showing 1969–1992 of 3200 firms — page 83 of 134.

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