F4 Champions · Season 1
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F4 Champions · Season 1
You're researching investors. We want to see what you're building.
Join the open accelerator where your standing changes with what you ship. Enrollment closes August 2.
7 VC firms investing in developer tools & infrastructure and insurance at the Series B stage.
F4 Fund tracks 7 VC firms that actively invest in developer tools & infrastructure + insurance at the Series B stage, with check sizes ranging from $250K – $500M (median: $27.5M – $27.5M). As of July 2026, and 100% lead or co-lead rounds. Rankings are based on F4's proprietary analysis of 1,521+ researched VC firms, scored by data completeness, portfolio depth, investment recency, and stage alignment.
| # | Firm | Check Size | Portfolio | Leads? | Activity | Decision | Intro |
|---|---|---|---|---|---|---|---|
| 1 | ▶ Spark Capital Spark Capital backs transformative products built by creators with genuine vision and technical depth. We believe that the best way to evaluate a founding team is not through credentials or market analysis, but by experiencing their product firsthand. Product comes first, and everything else follows. | $500K – $60M | 65 | Both | Active | ~2 wks | Open |
| 2 | ▶ 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 |
| 3 | ▶ Moderne Ventures Generalist investors with vertical expertise. We invest in bold, broad, multi-vertical technology companies applicable to multi-trillion dollar industries (real estate, finance, insurance, sustainability). Our distinctive Moderne Passport program creates value by connecting 1,500+ corporate executives with portfolio companies, generating customers, strategic partnerships, and operational guidance. Chicago | $2M – $25M | 27 | Leads | Active | ~2 wks | Req'd |
| 4 | ▶ R136 Ventures Identifies inflection points through proprietary Discovery Engine and backs founders who see opportunities others miss. Focuses on AI-driven transformation of B2B software and financial services, with deep technical due diligence analyzing 250+ data points. Woodside, CA | $2M – $20M | 42 | Both | Active | ~1 mo | Open |
| 5 | ▶ Streamlined Ventures Visionary founders are the true catalysts of transformation and progress. We partner with exceptional founders at the seed stage to help them build extraordinary companies through intensive operational support, structured tools, and candid guidance. Palo Alto | $250K – $10M | 26 | Leads | Active | ~2 wks | Open |
| 6 | ▶ Cathay Innovation Startups positioned as transformation partners with Fortune 500 corporates create the most impactful solutions. We believe the next generation of market leaders will emerge through collaborative innovation between startups and incumbent enterprises, supported by global expertise and capital. Paris | $5M – $100M | 16 | Both | Active | ~1 mo | Req'd |
| 7 | ▶ Gigafund Back the world's most ambitious and transformative entrepreneurs capable of building world-defining companies over 20+ years. Invest in founders with independent thought and first-principles vision to solve humanity's biggest problems across all sectors and geographies. Austin | $1M – $500M | 18 | Leads | Active | 3+ mo | Open |
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?
F4 Fund tracks 7 VC firms that actively invest in developer tools & infrastructure + insurance 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 + insurance investors is $27.5M – $27.5M, with a full range from $250K – $500M. The distribution breaks down as: 1 firms in the $5M-$10M range, 6 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 + insurance investors combine domain expertise with an active portfolio in the space. Among these firms, 29% prefer warm introductions, and the average firm has 36 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.