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.
23 VC firms investing in e-commerce & marketplaces and security & cybersecurity at the Series B stage.
F4 Fund tracks 23 VC firms that actively invest in e-commerce & marketplaces + security & cybersecurity at the Series B stage, with check sizes ranging from $50K – $350M (median: $17.5M – $17.5M). As of August 2026, and 91% lead or co-lead rounds. Rankings are based on F4's proprietary analysis of 1,553+ researched VC firms, scored by data completeness, portfolio depth, investment recency, and stage alignment.
| # | Firm | Check Size | Portfolio | Leads? | Activity | Decision | Intro |
|---|---|---|---|---|---|---|---|
| 1 | ▶ PayPal Ventures Accelerate financial services and commerce innovation by investing in companies that bring transformative solutions to market faster. We leverage PayPal's deep payments expertise, global brand, and 426+ million user network to help portfolio companies scale rapidly. San Jose | $5M – $30M | 43 | Leads | Active | ~1 mo | Open |
| 2 | ▶ Activant Capital Partner with relentless founders through their most defining stages of growth, using an in-house Research team to underwrite and support commerce-infrastructure and AI-native technology companies. Greenwich, CT | $15M – $60M | 118 | Both | Active | N/A | N/A |
| 3 | ▶ Cleveland Avenue Global venture capital firm investing in lifestyle consumer brands and technology companies that positively disrupt large and growing markets. Great investments require deep industry expertise, hands-on operational support, and access to strategic partners. Chicago | $1M – $50M | 68 | Leads | Active | ~1 mo | Req'd |
| 4 | ▶ Accel Partner with exceptional teams building transformative technology companies across all stages San Francisco | $2M – $10M | 127 | Both | Active | N/A | N/A |
| 5 | ▶ Crew Capital Community-driven VC led by active operators who simultaneously build and invest. Best support for founders comes from operators understanding current market challenges firsthand, not just history. Invest in category-defining technology companies. New York | $500K – $2M | 39 | Leads | Active | ~2 wks | Open |
| 6 | ▶ Stripes Stripes invests in companies with exceptional products for consumers and businesses, acting as an of-service growth partner. Product-market fit is the prerequisite; Stripes provides the operational muscle — go-to-market, talent, network, and capital markets support — to scale from product-led growth to market-leading brand. New York | $10M – $150M | 79 | Leads | Active | ~2 mo | Open |
| 7 | ▶ Bain Capital Ventures Ambitious founders solving fundamental problems across major industries. The next generation of transformational companies will be built on modern AI, secure infrastructure, and efficient commerce. We partner with technical founders with operator experience and compelling narratives. San Francisco | $1M – $20M | 28 | Leads | Active | ~2 wks | Open |
| 8 | ▶ Partech Partners We support ambitious founders solving large problems through technology across all stages. Independent thinkers who challenge conventional wisdom are our ideal partners. We provide not just capital but operational expertise, global networks, and hands-on support from day one through scale. Paris | $300K – $100M | 27 | Both | Active | ~1 mo | Open |
| 9 | ▶ GGV Capital Back notable founders with global ambitions using technology to transform industries. We partner with exceptional teams to scale from seed through IPO, providing capital, operational expertise, and network access. Menlo Park | $1M – $15M | 35 | Both | Active | ~2 wks | Open |
| 10 | ▶ Radian Capital Radian Capital partners with software-driven B2B companies at scale, providing capital and hands-on operational support. They concentrate on select companies and go deep with each, emphasizing sustainable growth over growth at all costs. New York | $5M – $30M | 34 | Leads | Active | ~1 mo | Req'd |
| 11 | ▶ PeakSpan Capital PeakSpan invests exclusively in Applied AI B2B software scale-ups at $3M–$50M+ ARR, providing growth equity combined with hands-on operational platform support (500+ expert community, proprietary technology tools, proven playbooks) to help founders scale with discipline and achieve optimal risk-adjusted exits. New York | $10M – $50M | 57 | Leads | Active | ~1 mo | N/A |
| 12 | ▶ Resolute Ventures We back founders who combine emotional intelligence with business acumen and are on a mission to solve problems they deeply care about. We're often the first institutional check and provide mentorship, community, and long-term partnership support. San Francisco | $50K – $1.5M | 23 | Leads | Active | ~2 wks | Req'd |
| 13 | ▶ 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 |
| 14 | ▶ Zeev Ventures Solo GP model combining angel investing speed with VC-scale checks. Backs non-traditional founders solving their own problems. Rejects process-heavy VC bureaucracy in favor of speed, decisiveness, and founder-first engagement. Palo Alto | $20M – $50M | 23 | Leads | Active | ~1 wk | Open |
| 15 | ▶ White Star Capital Technology companies are becoming intertwined with the global economy more so than ever before. The most compelling founders build businesses through a broader world view. White Star Capital backs globally ambitious entrepreneurs at Series A, B, and Seed stages across North America, Europe, and Asia, helping them scale internationally through deep local presence on three continents. London | $1M – $25M | 45 | Leads | Active | ~1 mo | Open |
| 16 | ▶ Bicycle Capital Latin America is home to exceptional founders addressing large markets who lack reliable growth capital. Bicycle Capital partners selectively with founders who have already proved product-market fit — from Series B to IPO — providing capital plus deep operational expertise and a global network built over decades at SoftBank. Miami | $25M – $150M | 7 | Leads | Active | ~2 mo | Open |
| 17 | ▶ Greenoaks Greenoaks backs generation-defining technology companies with exceptional long-term growth potential. We make concentrated, large initial bets and maintain positions through multiple rounds and public markets, believing that exceptional founders and products deserve exceptional partnership. San Francisco | $25M – $75M | 20 | Both | Active | ~2 mo | Req'd |
| 18 | ▶ Rosecliff Ventures Rosecliff's Frontier Technology Thesis focuses on AI, aerospace, defense, energy resilience, and space infrastructure. New York | $500K – $10M | 23 | Both | Active | ~2 mo | Open |
| 19 | ▶ Mucker Capital Mucker Capital is an early-stage venture capital firm investing in technology companies from pre-seed through Series B. We partner closely with founders building scalable businesses, often providing a company’s first institutional check and continuing to support them through later stages. Mucker has offices in Venice, California, Austin, and Toronto, and primarily invests across the United States and Canada, with the ability to back exceptional founders in other markets. Venice | $100K – $15M | 22 | Leads | Active | ~2 mo | Open |
| 20 | ▶ Tiger Global Management Leading global companies that leverage technological innovation across public and private markets. Proven founders (especially ex-Googlers, AWS, Stripe) with large TAMs (billions+), product-led growth, and global ambitions. Conviction-based investing post-2022 correction emphasizing quality over quantity. New York | $1M – $100M | 23 | Leads | Active | ~1 wk | Req'd |
| 21 | ▶ Insight Partners Software founders need more than capital to scale successfully. Insight Partners combines investment capital with hands-on operational expertise, embedded teams, and network access to accelerate company growth across all stages. New York | $10M – $350M | 28 | Leads | Active | ~1 mo | Open |
| 22 | ▶ Gaingels Equity of access and representation in venture capital delivers positive returns. Diverse and underrepresented (including LGBTQ+) leaders of high-growth companies deserve capital access. When these founders succeed, they influence ecosystems and open doors for historically excluded groups. New York | $200K – $500K | 29 | Follows | Active | ~2 wks | Open |
| 23 | ▶ Flucas Ventures Democratize access to venture capital by building large syndicates of non-traditional LPs. Invest across all stages, sectors, and geographies based on founder quality and market conviction, not category restrictions. Enable 2,000+ diverse co-investors to participate alongside marquee firms like Sequoia and Andreessen Horowitz while maintaining founder-friendly economics. Miami | $250K – $5M | 17 | Follows | Active | ~1 wk | 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?
F4 Fund tracks 23 VC firms that actively invest in e-commerce & marketplaces + security & cybersecurity 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 e-commerce & marketplaces + security & cybersecurity investors is $17.5M – $17.5M, with a full range from $50K – $350M. The distribution breaks down as: 1 firms in the <$500K range, 1 firms in the $500K-$1M range, 1 firms in the $1M-$2M range, 1 firms in the $2M-$5M range, 4 firms in the $5M-$10M range, 15 firms in the $10M+ range.
Among the 23 firms tracked, 91% lead or co-lead rounds, and 9% 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 series b e-commerce & marketplaces + security & cybersecurity investors combine domain expertise with an active portfolio in the space. Among these firms, 30% prefer warm introductions, and the average firm has 42 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.