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.
12 VC firms investing in marketing & adtech and aerospace & defense at the Seed stage.
F4 Fund tracks 12 VC firms that actively invest in marketing & adtech + aerospace & defense at the Seed stage, with check sizes ranging from $100K – $10M (median: $1.8M – $1.8M). As of July 2026, and 92% 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 | ▶ Accel Partner with exceptional teams building transformative technology companies across all stages San Francisco | $2M – $10M | 127 | Both | Active | N/A | N/A |
| 2 | ▶ Flex Capital Founders backing founders. Flex Capital backs exceptional technical founders at pre-seed and seed with capital from operators who have personally built and exited category-defining companies. Every GP has sat in the founder's seat. San Francisco | $500K – $2M | 38 | Leads | Active | ~2 wks | Open |
| 3 | ▶ 8-Bit Capital Network-powered startups connecting people and businesses through software tools and platforms | $250K – $3M | 55 | Both | Active | N/A | N/A |
| 4 | ▶ 42CAP Backing seed-stage, tech- and data-driven B2B software companies across Europe with global ambition. Focus on Agility Drivers (verticalized, consumerized, XaaS solutions) and Seductive Solutions with genuine product-market fit. Invest in AI-first and AI-enabled businesses as well as frontier tech (BioIT, Space, DLT, Quantum Computing). Munich | $500K – $3M | 56 | Leads | Active | N/A | N/A |
| 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 | ▶ Canyon Creek Capital We invest at the Bridge-to-Series A stage—the critical inflection point for companies with real market adoption and product-market fit that are not yet ready for traditional Series A rounds. We partner with exceptional entrepreneurs to build game-changing companies while maximizing investor flexibility and returns. Santa Monica | $100K – $1M | 11 | Both | Active | ~2 mo | Open |
| 8 | ▶ Kima Ventures Back ambitious teams with strong learning and execution capacities across all sectors, stages, and geographies. Technology-enabled businesses preferred. Volume-based, founder-centric investment philosophy. Paris | $100K – $200K | 25 | Leads | Active | ~2 wks | Open |
| 9 | ▶ 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 |
| 10 | ▶ 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 |
| 11 | ▶ 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 |
| 12 | ▶ TheoryForge Operator-led fund investing in ambitious founders building transformative AI applications. We partner with technical founders who understand AI/ML deeply and are solving real customer problems with capital efficiency. Great product is always the best marketing. | $200K – $500K | 38 | Both | Active | ~2 wks | 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?
Firms that frequently co-invest with investors on this page
F4 Fund tracks 12 VC firms that actively invest in marketing & adtech + aerospace & defense at the Seed 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 seed marketing & adtech + aerospace & defense investors is $1.8M – $1.8M, with a full range from $100K – $10M. The distribution breaks down as: 3 firms in the <$500K range, 1 firms in the $500K-$1M range, 3 firms in the $1M-$2M range, 2 firms in the $2M-$5M range, 3 firms in the $5M-$10M range.
Among the 12 firms tracked, 92% lead or co-lead rounds, and 8% 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 seed marketing & adtech + aerospace & defense investors combine domain expertise with an active portfolio in the space. Among these firms, 11% 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.