7 VC firms investing in marketing & adtech and climate & clean energy at the Series B stage.
F4 Fund tracks 7 VC firms that actively invest in marketing & adtech + climate & clean energy at the Series B stage, with check sizes ranging from $100K – $90M (median: $3.3M – $3.3M). As of August 2026, and 86% lead or co-lead rounds. Rankings are based on F4's proprietary analysis of 1,580+ 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 | 136 | Both | Active | N/A | N/A |
| 2 | ▶ 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 |
| 3 | ▶ Highland Europe Highland Europe backs exceptional teams in Europe and Israel building the next generation of technology leaders, focusing on product-led software and consumer companies with organic growth, clear product-market fit, and capital discipline. London | $20M – $90M | 65 | Leads | Active | N/A | N/A |
| 4 | ▶ 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 |
| 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 | ▶ Liquid 2 Champions exceptional founders to build lasting companies through experience, community, and capital. Generalist technology investor whose edge is network depth — Joe Montana's unmatched rolodex and 800+ portfolio company network enables introductions that most seed funds cannot provide. San Francisco | $250K – $5M | 27 | Follows | Active | ~2 wks | Open |
| 7 | ▶ 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 |
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 7 VC firms that actively invest in marketing & adtech + climate & clean energy 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 marketing & adtech + climate & clean energy investors is $3.3M – $3.3M, with a full range from $100K – $90M. The distribution breaks down as: 1 firms in the $1M-$2M range, 3 firms in the $2M-$5M range, 2 firms in the $5M-$10M range, 1 firms in the $10M+ range.
Among the 7 firms tracked, 86% lead or co-lead rounds, and 14% 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 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 60 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.