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.
10 VC firms investing in marketing & adtech and climate & clean energy at the Series A stage.
F4 Fund tracks 10 VC firms that actively invest in marketing & adtech + climate & clean energy at the Series A stage, with check sizes ranging from $100K – $10M (median: $1.8M – $1.8M). As of July 2026, and 90% lead or co-lead rounds. Rankings are based on F4's proprietary analysis of 1,539+ researched VC firms, scored by data completeness, portfolio depth, investment recency, and stage alignment.
| # | Firm | Check Size | Portfolio | Leads? | Activity | Decision | Intro |
|---|---|---|---|---|---|---|---|
| 1 | ▶ Knoll Ventures Back outlier B2B founders who see around corners and intimately understand customer pain points, investing at the pre-Series A stage to bridge the gap between seed and Series A — especially in underserved non-coastal markets like the Southeast US. Atlanta | $500K – $3M | 37 | Both | Active | N/A | Open |
| 2 | ▶ Habitat Partners Habitat Partners backs early-stage companies where exceptional brand equity meets strong business fundamentals. Born from Red Antler's brand expertise, the firm asks: 'Why does this company need to exist in the world, and what emotional resonance does it create?' They invest in consumer brands (CPG, beauty, food/beverage) and B2B software tools serving the startup and retail ecosystem, leveraging Red Antler's branding platform as a key value-add for portfolio companies. Brooklyn | $250K – $750K | 54 | Follows | Active | ~1 wk | Open |
| 3 | ▶ Acurio Ventures Partner with visionary European founders at seed and Series A, leveraging the team's own operator experience and a network of 150+ international co-investors. Sector agnostic (excluding life sciences and crypto) with ~50 companies per fund. Strong focus on capital efficiency, unit economics, and realistic paths to profitability. Co-investor by default; will lead when it adds value. Bilbao, Spain | $100K – $3M | 95 | Both | Active | N/A | Open |
| 4 | ▶ f7 Ventures We identify exceptional operators with proven track records at scale (ex-Facebook, Google, Stripe) and catalyze their transition into founders. Periods of rapid societal behavior change spur dramatic innovation. We invest in the future of work and consumer utility, providing not just capital but operational expertise, network access, and proven playbooks from building at Facebook/Meta scale. San Francisco | $500K – $5M | 46 | Leads | Active | ~1 wk | Open |
| 5 | ▶ How Women Invest Women founders represent an overlooked asset class that delivers superior returns. Women-founded companies earn 26% more for investors, yet receive only 2% of venture funding. We invest exclusively in women-founded companies, providing capital, network access, and operational support to drive transformative change. San Francisco | $250K – $5M | 31 | Leads | Active | ~1 mo | Req'd |
| 6 | ▶ Fuel Ventures Backs ambitious tech founders from pre-seed to Series A through EIS/SEIS tax-efficient fund structures in the UK. Focus on Vertical AI, AI-enabled software, and FinTech 2.0. Founded by serial entrepreneur Mark Pearson, the firm brings operational expertise as entrepreneurs who have built and exited companies. London | $150K – $3M | 48 | Both | Active | N/A | Open |
| 7 | ▶ SciFi VC Partner with exceptional founders solving hard technical problems in fintech, AI, and science that require intense curiosity, intellectual depth, and scientific innovation. Focus on defensibility through hard technical feats, network effects, and solutions in complex, highly regulated industries. San Francisco | $100K – $1M | 25 | Leads | Active | ~2 wks | Req'd |
| 8 | ▶ 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 |
| 9 | ▶ Evolution Venture Capital Partners Culture-Tech companies that disrupt and define how we live, work, play, and interact with the world every day. We invest in passionate founders building transformative products that change cultural behaviors. New York | $500K – $6M | 28 | Leads | Active | ~1 wk | Open |
| 10 | ▶ Stout Street Capital Great startups can be built anywhere. We believe in founder-centric investing with operational support from a team of successful founders. We serve undernetworked geographic regions. Denver | $100K – $500K | 26 | Both | Active | ~2 wks | Open |
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 10 VC firms that actively invest in marketing & adtech + climate & clean energy at the Series A 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 a marketing & adtech + climate & clean energy investors is $1.8M – $1.8M, with a full range from $100K – $10M. The distribution breaks down as: 1 firms in the <$500K range, 2 firms in the $500K-$1M range, 3 firms in the $1M-$2M range, 3 firms in the $2M-$5M range, 1 firms in the $5M-$10M range.
Among the 10 firms tracked, 90% lead or co-lead rounds, and 10% 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 a marketing & adtech + climate & clean energy investors combine domain expertise with an active portfolio in the space. Among these firms, 20% prefer warm introductions, and the average firm has 43 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.