7 VC firms investing in developer tools & infrastructure and agetech & longevity at the Seed stage.
F4 Fund tracks 7 VC firms that actively invest in developer tools & infrastructure + agetech & longevity at the Seed stage, with check sizes ranging from $100K – $50M (median: $550K – $550K). As of August 2026, and 100% lead or co-lead rounds. Rankings are based on F4's proprietary analysis of 1,698+ researched VC firms, scored by data completeness, portfolio depth, investment recency, and stage alignment.
| # | Firm | Check Size | Portfolio | Leads? | Activity | Decision | Intro |
|---|---|---|---|---|---|---|---|
| 1 | ▶ Hiro Capital Europe can lead the next phase of human evolution enabled by technology. We invest in AI, Spatial Computing, Autonomy, Robotics, Longevity, Games, and Space/Defence. We are founders backing founder leaders with hands-on engagement. | $5M – $50M | 43 | Leads | Active | N/A | Req'd |
| 2 | ▶ Two Ravens Extraordinary founders from non-obvious backgrounds, those without traditional pedigree, from underrepresented groups, or based outside major venture metros, are systematically overlooked despite having the brilliance, vision, and build/sell ability of top early-stage teams. We level the playing field with capital, zero-to-one operating expertise, and a global network. Bellevue | $250K – $500K | 20 | Both | Active | N/A | N/A |
| 3 | ▶ Concrete Rose Capital Technology is the 'new West' — Westbound invests financial and social capital into visionary, values-aligned founders to build a virtuous cycle of wealth and opportunity, with an explicit mission to close the racial wealth gap. Palo Alto | $100K – $5M | 53 | Both | Active | ~2 mo | Open |
| 4 | ▶ LOI Venture Back the brightest early-stage founders under 30. We provide capital, mentorship, and network access to accelerate ambitious young entrepreneurs who graduate from our League of Innovators program or demonstrate exceptional founder quality. Vancouver | $100K – $1M | 35 | Leads | Active | ~2 wks | Open |
| 5 | ▶ Ada Ventures Backing the best founders, not just the best-connected. We assess founders on their qualities, not CV or past experience. We focus on founders building solutions for climate equity, economic empowerment, and healthy ageing. London | $250K – $1M | 30 | Leads | Active | N/A | N/A |
| 6 | ▶ 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 |
| 7 | ▶ Cake Ventures We invest in founders with global ambitions creating products that meet tomorrow's internet users' needs through demographic change. Focus on aging & longevity, spending power of women, and the new majority (majority-minority shift). San Francisco | $200K – $750K | 20 | 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?
Firms that frequently co-invest with investors on this page
F4 Fund tracks 7 VC firms that actively invest in developer tools & infrastructure + agetech & longevity 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 developer tools & infrastructure + agetech & longevity investors is $550K – $550K, with a full range from $100K – $50M. The distribution breaks down as: 3 firms in the <$500K range, 2 firms in the $500K-$1M range, 1 firms in the $2M-$5M range, 1 firms in the $10M+ range.
Among the 7 firms tracked, 100% lead or co-lead rounds. 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 developer tools & infrastructure + agetech & longevity investors combine domain expertise with an active portfolio in the space. Among these firms, 40% prefer warm introductions, and the average firm has 34 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.