7 VC firms investing in developer tools & infrastructure and legal & regtech at the Series B stage.
F4 Fund tracks 7 VC firms that actively invest in developer tools & infrastructure + legal & regtech at the Series B stage, with check sizes ranging from $250K – $60M (median: $25.1M – $25.1M). As of June 2026, and 100% lead or co-lead rounds. Rankings are based on F4's proprietary analysis of 1,356+ researched VC firms, scored by data completeness, portfolio depth, investment recency, and stage alignment.
| # | Firm | Check Size | Portfolio | Leads? | Activity | Decision | Intro |
|---|---|---|---|---|---|---|---|
| 1 | ▶ Makers Fund Backing builders of the future of interactive entertainment. We invest across games, content, platforms, and ecosystem technologies with conviction that visionary founders are driving transformation in how we play, watch, create, and live. | $500K – $5M | 157 | Leads | Active | ~2 wks | Open |
| 2 | ▶ Elad Gil Invest in market-creating companies with exceptional founders and large addressable markets. Prioritize market size and dynamics, then evaluate product-market fit through personal usage test. Focus on founder quality and execution capability over other factors. San Francisco | $250K – $50M | 39 | Leads | Active | ~2 wks | Open |
| 3 | ▶ Accel Partner with exceptional teams building transformative technology companies across all stages San Francisco | $2M – $10M | 127 | Both | Active | — | — |
| 4 | ▶ MissionOG Operator-led growth investor backing high-growth B2B technology companies driving digitization in fintech, data, and AI-driven technologies, especially proprietary data, regulated workflows, and infrastructure layers that AI agents need to call into. Philadelphia | $5M – $10M | 28 | Both | Active | ~1 mo | — |
| 5 | ▶ Emergence Capital Emergence invests in early-stage B2B software companies that will define the next era of enterprise technology. Founded in 2003 as the original cloud/SaaS-focused VC firm, they have pioneered investing through technology transitions: horizontal SaaS (Salesforce, Zoom), vertical SaaS (Veeva, Doximity), and now AI-native services — companies that sell outcomes rather than software, powered by AI that compounds competitive advantage over time. San Francisco | $5M – $50M | 55 | Leads | Active | ~1 mo | Open |
| 6 | ▶ Headline We invest in top founders everywhere building the next generation of technology companies. We provide capital, operational expertise, and a truly global platform to scale with hands-on support through specialized teams. | $2M – $50M | 51 | Leads | Active | ~2 wks | Open |
| 7 | ▶ 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 | — | — |
What other stages do these firms also invest in?
Investors on this page also frequently invest in these sectors
What other sectors do these firms also invest in?
Firms that frequently co-invest with investors on this page
F4 Fund tracks 7 VC firms that actively invest in developer tools & infrastructure + legal & regtech at the Series B 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 series b developer tools & infrastructure + legal & regtech investors is $25.1M – $25.1M, with a full range from $250K – $60M. The distribution breaks down as: 1 firms in the $2M-$5M range, 2 firms in the $5M-$10M range, 4 firms in the $10M+ range.
Among the 7 firms tracked, 100% lead or co-lead rounds. 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 series b developer tools & infrastructure + legal & regtech investors combine domain expertise with an active portfolio in the space. Among these firms, 0% prefer warm introductions, and the average firm has 67 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.