10 VC firms investing in marketing & adtech at the Series B stage.
F4 Fund tracks 10 VC firms that actively invest in marketing & adtech at the Series B stage, with check sizes ranging from $150K – $20M (median: $5.3M – $5.3M). As of April 2026, and 80% lead or co-lead rounds. Rankings are based on F4's proprietary analysis of 1,092+ 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 | 120 | Both | Active | — | — |
| 2 | ▶ Boldstart Ventures We invest in bold technical founders building the autonomous enterprise. Before you build your team, before you write your first line of code—that's when boldstart gets to work. We collaborate with technical founders at Inception, lead pre-product rounds, and help turn bold ideas into category-creating companies. Miami | $250K – $15M | 25 | Leads | Active | ~1 wk | Open |
| 3 | ▶ 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 | 27 | Leads | Active | ~1 mo | Req'd |
| 4 | ▶ Tribeca Venture Partners We partner with gritty and determined entrepreneurs leveraging emerging technologies to create or disrupt huge markets. We invest in people first, second, and third—founders with passion, obsession, and vision. Only partners with founders when we believe their company alone can return our entire fund or more. New York | $1M – $10M | 15 | Leads | Active | ~2 mo | Req'd |
| 5 | ▶ 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 | 40 | Both | Active | ~1 mo | Open |
| 6 | ▶ Bigfoot Capital Non-dilutive growth capital for B2B software companies. Alternative to venture capital focused on sustainable, capital-efficient growth that preserves founder equity and optionality. Fills gap between traditional bank lending and venture financing. Denver | $150K – $5M | 20 | Follows | Active | ~2 wks | Open |
| 7 | ▶ Bling Capital The hardest thing in seed is finding product-market fit. We help you find it. If you already have product-market fit, we will help you scale. We partner with exceptionally ambitious founders for the long run and provide capital combined with operational expertise through our 100+ member Product Council. San Francisco | $500K – $3M | 30 | Leads | Active | ~2 mo | Open |
| 8 | ▶ 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 | 25 | Follows | Active | ~2 wks | Open |
| 9 | ▶ Sigma Prime Ventures Early-stage technology companies solving hard business problems with SaaS, cloud, mobile, and disruptive technologies. We back technical founders with domain expertise and market understanding across diverse sectors. Boston | $500K – $10M | 10 | Both | Active | ~2 wks | Req'd |
| 10 | ▶ IA Ventures Data is the defensible moat in technology. We invest in companies that build proprietary data assets, analytics capabilities, or machine learning advantages to dominate their categories. Founded on 'information arbitrage' thesis - applying hedge fund quantitative discipline to early-stage venture. New York | $250K – $750K | 11 | Leads | 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 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 investors is $5.3M – $5.3M, with a full range from $150K – $20M. The distribution breaks down as: 1 firms in the $500K-$1M range, 1 firms in the $1M-$2M range, 3 firms in the $2M-$5M range, 4 firms in the $5M-$10M range, 1 firms in the $10M+ range.
Among the 10 firms tracked, 80% lead or co-lead rounds, and 20% 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 investors combine domain expertise with an active portfolio in the space. Among these firms, 33% prefer warm introductions, and the average firm has 32 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.