12 VC firms investing in marketing & adtech and legal & regtech at the Seed stage.
F4 Fund tracks 12 VC firms that actively invest in marketing & adtech + legal & regtech at the Seed stage, with check sizes ranging from $100K – $60M (median: $1.6M – $1.6M). As of June 2026, and 92% lead or co-lead rounds. Rankings are based on F4's proprietary analysis of 1,358+ researched VC firms, scored by data completeness, portfolio depth, investment recency, and stage alignment.
| # | Firm | Check Size | Portfolio | Leads? | Activity | Decision | Intro |
|---|---|---|---|---|---|---|---|
| 1 | ▶ Accel Partner with exceptional teams building transformative technology companies across all stages San Francisco | $2M – $10M | 127 | Both | Active | — | — |
| 2 | ▶ Telegraph Hill Capital We back entrepreneurs obsessed with solving big problems using capital-efficient technology. We focus on early-stage tech startups in North America and Western Europe building game-changing B2B software across fintech, logistics, proptech, HR tech, legal tech, and cybersecurity. Barcelona | $100K – $1.5M | 43 | Leads | Active | ~2 wks | Open |
| 3 | ▶ Pathlight Ventures Low volume, high conviction early-stage investing in 10 thematic areas where vertical AI is reshaping regulated, complex industries: healthcare, fintech, capital markets, industrial operations, security, and government. Back strongly opinionated founders building category-defining companies with direct operator support from a team with deep fintech and growth scaling experience. New York City | $250K – $3M | 39 | Leads | Active | ~1 mo | Open |
| 4 | ▶ First Round Capital Beginnings matter. We work with founders exclusively at the earliest stages of company building, often when all they have is an 'imagine if.' We look for compelling and contrarian insights into how the world works—what do you understand about a market that others miss? Our role is to accelerate the path from idea to product-market fit through embedded partnership. San Francisco | $750K – $4M | 28 | Leads | Active | ~2 wks | Req'd |
| 5 | ▶ Icehouse Ventures Back exceptional Kiwi founders building globally transformative companies, from day one to IPO. New Zealand founders represent a significantly undervalued asset class, and Icehouse provides capital plus an ecosystem of 3,000+ investors and deep operational support. Auckland | $100K – $10M | 41 | Leads | Active | ~2 mo | Open |
| 6 | ▶ Entrepreneurs Roundtable Accelerator (ERA) NYC has tremendous entrepreneurial talent but lacked a structured environment for early-stage founders. ERA provides capital, intense mentorship, and network access to help founders build market-leading companies. Every sector deserves innovation. New York | $150K – $150K | 39 | Leads | Active | ~2 mo | Open |
| 7 | ▶ FirstMark We back disruptive founders building category-defining companies. Our approach is founder-first, long-term, and deeply operational. We take the longest view in the room, operate with excellence and integrity, stay curious at the bleeding edge, and invest heavily in building community. New York | $250K – $10M | 32 | Leads | Active | ~2 wks | Req'd |
| 8 | ▶ Firsthand VC Inception-stage VC backing experienced founders building B2B autonomous agentic AI from day zero. Leverages Salesforce alumni network to provide portfolio companies with enterprise distribution and operational support. New York | $100K – $2M | 19 | Follows | Active | ~1 mo | Open |
| 9 | ▶ Evantic Capital At the intersection of generational talent and transformative artificial intelligence. Evantic backs exceptional founders building AI-first B2B software, infrastructure, and platform businesses with the potential to become global market leaders. London | $1M – $60M | 10 | Both | Active | — | — |
| 10 | ▶ LOI Venture Back the brightest early-stage founders under 30. We provide capital, mentorship, and network access to accelerate ambitious young entrepreneurs who graduate from our League of Innovators program or demonstrate exceptional founder quality. Vancouver | $100K – $1M | 35 | Leads | Active | ~2 wks | Open |
| 11 | ▶ Tunitas Ventures Category creating companies with few to no competitors, defensible business models, and unit economics that are starting to work. Invest across all technology sectors except healthcare. Require 50x return potential. Primary value-add is helping raise Series A from the best possible investor. Menlo Park | $500K – $1.5M | 19 | Both | Active | ~2 wks | Open |
| 12 | ▶ TheoryForge Operator-led fund investing in ambitious founders building transformative AI applications. We partner with technical founders who understand AI/ML deeply and are solving real customer problems with capital efficiency. Great product is always the best marketing. | $200K – $500K | 38 | Both | Active | ~2 wks | Req'd |
Investors on this page also frequently invest in these sectors
What other stages do these firms also invest in?
What other sectors do these firms also invest in?
Firms that frequently co-invest with investors on this page
F4 Fund tracks 12 VC firms that actively invest in marketing & adtech + legal & regtech at the Seed stage. These firms are ranked using a composite score that weighs data completeness (30%), portfolio depth (30%), investment recency (25%), and stage alignment (15%).
Based on F4's analysis, the median check size for seed marketing & adtech + legal & regtech investors is $1.6M – $1.6M, with a full range from $100K – $60M. The distribution breaks down as: 2 firms in the <$500K range, 2 firms in the $500K-$1M range, 3 firms in the $1M-$2M range, 1 firms in the $2M-$5M range, 3 firms in the $5M-$10M range, 1 firms in the $10M+ range.
Among the 12 firms tracked, 92% lead or co-lead rounds, and 8% typically follow. Founders seeking a lead investor should filter for firms marked "Leads" or "Both" in the rankings table above. Lead investors typically set deal terms and anchor the round.
The best seed marketing & adtech + legal & regtech investors combine domain expertise with an active portfolio in the space. Among these firms, 30% prefer warm introductions, and the average firm has 39 portfolio companies. Look for firms whose check size matches your raise, whose stage preference aligns with yours, and who have a track record of supporting companies in your sector through multiple growth phases.
Firm profiles are continuously updated through F4's research pipeline, which combines LLM-powered web research, portfolio analysis, and transcript extraction. The ranking data refreshes every 12 hours. Editorial analysis is reviewed weekly. Individual firm profiles are re-researched on a 30-day cycle or when new information surfaces.