Best Seed SaaS Venture Capital Firms

Browse 4,147 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

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

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

OpenSky Ventures

OpenSky Ventures focuses on B2B software, data, and cloud infrastructure. The fund often supports technical founders tackling enterprise workflow and systems challenges.

  • Enterprise
  • Developer Tools
  • AI / ML
  • Seed, Series A
  • Boston, MA
  • 4 portfolio companies

OpenView

B2B SaaS investor with operating support and strong go-to-market orientation. Not hiring-specific, but relevant for software that monetizes through enterprise contracts.

  • SaaS
  • Enterprise
  • Seed, Series A, Pre-Seed

OpenView (Expansion-stage, but seed programs)

B2B SaaS specialist known for PLG; primarily later than pre-seed but does seed selectively.

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

Operade Partners

Operade invests in enterprise B2B software startups with scalable distribution models.

  • Enterprise
  • SaaS
  • seed+, Seed
  • $1.5M – $5.0M
  • New York City, NY
  • 1 portfolio company

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

Operational Health Fund

Focused on investing in transformative tech solutions that optimize operations and improve efficiencies in healthcare facilities.

  • Other
  • SaaS
  • Seed
  • $750K – $2.0M
  • Raleigh, NC
  • 2 portfolio companies

Operational VC

Investing in modern tools for operations leaders at manufacturing enterprises; focusing on B2B SaaS companies disrupting procurement, logistics, and supply chain management.

  • Other
  • SaaS
  • Enterprise
  • Seed
  • $250K – $3.0M
  • Austin, TX
  • 1 portfolio company

Operations Edge Fund

Invests in B2B platforms that revolutionize mid-market operations and enhance e-commerce efficiencies.

  • SaaS
  • Other
  • Seed
  • $1.0M – $4.0M
  • Boston, MA
  • 1 portfolio company

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 Edge Fund

Operator Edge specifically focuses on developer-centric SaaS platforms at the seed stage, leveraging its network of domain experts.

  • SaaS
  • Other
  • Developer Tools
  • Seed
  • $1.5M – $5.0M
  • Los Angeles, CA
  • 2 portfolio companies

Operator Insights Fund

Focuses on B2B SaaS and developer tools for research-heavy industries, targeting founder-led teams addressing highly technical and regulated markets.

  • SaaS
  • Developer Tools
  • Other
  • Seed
  • $100K – $1.0M
  • Austin, TX
  • 2 portfolio companies

Operator Partners

Operators investing in early-stage enterprise SaaS and infrastructure with GTM execution support.

  • SaaS
  • Developer Tools
  • Seed
  • $500K – $5.0M
  • San Francisco, CA
  • 198 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

OperatorTech Capital

Investing in transformative SaaS solutions for freight and transportation sectors, driving operational efficiency.

  • SaaS
  • Other
  • Seed, Series A
  • $1.0M – $4.0M
  • Seattle, WA
  • 1 portfolio company

Operators Guild Capital

FOG Ventures, the investing arm of Operators Guild, invests from pre-seed to pre-IPO in B2B software, infrastructure, and AI that power business operations, including finance, operations, go-to-market...

  • Other
  • Healthcare
  • Consumer
  • Seed
  • $250K – $500K
  • San Francisco, California, United States
  • 17 portfolio companies

Showing 2593–2616 of 4147 firms — page 109 of 173.

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