Forum Ventures Review: The Leading B2B SaaS Pre-Seed Fund Backed by Data
Everything you need to know about Forum Ventures: their investment thesis, notable portfolio companies, typical check size, and how to position your startup for funding.
If you're building a B2B SaaS company at the pre-seed or seed stage, Forum Ventures should be at the top of your target list. They're one of the most recognized names in early-stage B2B investing, with a unique combination of accelerator program, venture studio, and pre-seed fund.
Founded in 2014 as Acceleprise and rebranded to Forum Ventures, the firm has invested in over 150 B2B startups. They review thousands of applications annually and invest in the top 1-2%, making them highly selective but incredibly valuable partners.
In this guide, we'll cover what Forum Ventures looks for, their investment criteria, notable portfolio companies, and how to position your startup to catch their attention.
Investment Focus & Thesis
Forum Ventures focuses exclusively on early-stage B2B technology companies. Their thesis centers on being the first institutional investor for B2B SaaS founders, providing capital alongside intensive support through their accelerator and venture studio programs.
Stage Focus
Pre-seed and seed stages. They invest $100K-$350K per company and provide extensive platform support.
Check Size
$100K to $350K per investment, with additional support through their accelerator program.
Forum Ventures invests across several core B2B sectors:
- AI & Machine Learning — AI-powered B2B solutions, automation, and intelligent tools
- Healthcare & HealthTech — Digital health, healthcare SaaS, and life sciences tools
- Fintech — Financial infrastructure, payments, and banking technology
- Future of Work — Remote work tools, HR tech, and productivity platforms
- Supply Chain & Procurement — Logistics, sourcing, and procurement technology
- Defense Tech — Dual-use technology for defense and commercial applications
Recent Investment Activity
Forum Ventures has remained highly active in 2025 and 2026, continuing their focus on B2B SaaS. Recent investments include:
| Company | Sector | Round | Year |
|---|---|---|---|
| Allen Control Systems | Defense | Pre-seed | 2026 |
| Fireflies.ai | AI | Seed | 2025 |
| Private AI | AI | Seed | 2025 |
| Blooming Health | HealthTech | Seed | 2025 |
Forum Ventures operates one of the most selective B2B accelerator programs, accepting only 1-2% of applicants. Companies accepted into their program receive capital plus intensive support.
Notable Portfolio Companies
Forum Ventures' portfolio includes over 150 B2B SaaS companies. Here are some notable ones:
Fireflies.ai
AI-powered meeting transcription and note-taking assistant. Grown significantly with Forum's support.
People Data Labs
API-first company providing people data products for B2B applications.
Private AI
Privacy-preserving machine learning and NLP tools for enterprise.
FirstBase
Future of work platform helping companies set up remote workers.
Arkestro
AI-powered procurement and negotiation platform.
Additional portfolio companies include Spendflo, Vergo, Hostfully, Orbiit, Deskree, VendorPM, Offsite, and 50+ more B2B startups across various sectors.
What Forum Ventures Looks For
Based on public statements and their investment patterns, here's what Forum Ventures typically evaluates:
- B2B SaaS focus — They only invest in B2B companies, so your startup must be selling to businesses.
- Strong founding teams — Founders with domain expertise and the ability to execute quickly.
- Market potential — Large, addressable markets with room for significant growth.
- Product differentiation — Unique insights or unfair advantages in your market.
- GO-to-market strategy — Clear understanding of how you'll acquire customers.
Pro Tip
Forum Ventures is known for their intensive accelerator program. If accepted, you'll receive hands-on support in sales, marketing, and fundraising. They also have a strong community of alumni founders who support each other.
How to Connect With Forum Ventures
Getting a meeting with Forum Ventures requires a strong B2B SaaS pitch. Here's what we recommend:
Apply to Their Accelerator
The most direct path. Forum accepts applications for their batch program multiple times per year. Be ready for a highly competitive process.
Leverage Your Network
Warm introductions from portfolio founders or other investors in the B2B SaaS space can help get noticed.
Show B2B Traction
Demonstrate early customer adoption, ARR, or strong LOIs from other B2B customers.
Attend B2B Events
Forum hosts events and is active in the B2B SaaS community. Building relationships before applying helps.
The Value of Financial Preparedness
Forum Ventures expects founders to have a solid understanding of their financials. This is where many first-time founders struggle — and where bringing in fractional CFO support can make a significant difference.
Why Investors Care
- • Demonstrates business acumen
- • Shows you understand unit economics
- • Enables smarter decision-making
- • Speeds up due diligence
What You Need
- • Clear financial model with assumptions
- • Understanding of burn rate and runway
- • Realistic projections for growth
- • CAC and LTV metrics
How Eagle Rock Helps
We help B2B SaaS companies build financial infrastructure that impresses investors. From pitch deck financials to SaaS metric tracking, our fractional CFO services ensure you're ready for due diligence. We also have relationships with investors across the VC ecosystem and can make introductions when the time is right.
Ready to Strengthen Your Fundraising Deck?
Whether you're preparing to pitch Forum Ventures or other top VCs, having professional financials can set you apart. Our team has helped companies raise over $200M in venture capital.
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