31 VC firms investing in developer tools & infrastructure and marketing & adtech at the Series A stage.
F4 Fund tracks 31 VC firms that actively invest in developer tools & infrastructure + marketing & adtech at the Series A stage, with check sizes ranging from $100K – $60M (median: $2.8M – $2.8M). As of June 2026, and 97% lead or co-lead rounds. Rankings are based on F4's proprietary analysis of 1,358+ researched VC firms, scored by data completeness, portfolio depth, investment recency, and stage alignment.
| # | Firm | Check Size | Portfolio | Leads? | Activity | Decision | Intro |
|---|---|---|---|---|---|---|---|
| 1 | ▶ InReach Ventures AI and data science can dramatically improve venture capital decision-making. We use proprietary software to discover, evaluate, and support the most promising European startups while providing hands-on operational support. | $250K – $3M | 42 | Leads | Active | ~2 wks | Open |
| 2 | ▶ Storm Ventures Storm Ventures backs early-stage B2B enterprise software companies with a focus on AI-native applications, cybersecurity, and cloud infrastructure. They employ a 'paddling to surfing' growth methodology and have deep expertise in taking companies from inception to $100M+ ARR. Their philosophy: 'the interface layer will disappear. The infrastructure layer will compound.' Menlo Park | $1M – $15M | 67 | Leads | Active | ~1 mo | — |
| 3 | ▶ Blossom Street Ventures Data-driven early-stage growth SaaS investor backing cash-efficient, resourceful founders with $2M-$30M ARR. Metrics-first evaluation, no warm intro required, single-partner model for speed and transparency. Dallas | $1M – $4M | 31 | Both | Active | ~1 mo | Open |
| 4 | ▶ Accel Partner with exceptional teams building transformative technology companies across all stages San Francisco | $2M – $10M | 127 | Both | Active | — | — |
| 5 | ▶ Harrison Metal Exceptional entrepreneurs with clear thinking and strong execution capability, backed by operational mentorship and management discipline. We invest in founders who value learning and can benefit from hands-on advisory support rooted in operating experience. San Francisco | $500K – $3M | 15 | Leads | Between | ~2 wks | Req'd |
| 6 | ▶ 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 | 27 | Leads | Active | ~1 wk | Open |
| 7 | ▶ G20 Ventures Human-scale venture capital focused on early-stage enterprise software. Partner with great teams in love with big problems at the inflection point of customer validation, providing smart money, storytelling support, and the right connections through a network of 20+ accomplished Northeast entrepreneurs. Boston | $2M – $5M | 25 | Leads | Active | ~1 mo | Open |
| 8 | ▶ Coelius Capital Ideas are meaningless. Validated ideas are priceless. We invest in differentiated B2B and B2B2C companies with real product-market fit. We look for founders who can cold call a customer at 9 PM and get them excited in one sentence. We like weird ideas that create new categories. San Francisco | $200K – $1M | 21 | Leads | Active | ~1 wk | Open |
| 9 | ▶ 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 |
| 10 | ▶ Theory Ventures Thesis-driven firm backing software companies that turn technology discontinuities into durable go-to-market advantages. Core focus: The Decade of Data — AI-native enterprise software, modern data stack evolution, and web3 data infrastructure. San Francisco | $1M – $25M | 16 | Leads | Active | ~1 mo | Open |
| 11 | ▶ Pathlight Ventures Low volume, high conviction early-stage investing in 10 thematic areas where vertical AI is reshaping regulated, complex industries: healthcare, fintech, capital markets, industrial operations, security, and government. Back strongly opinionated founders building category-defining companies with direct operator support from a team with deep fintech and growth scaling experience. New York City | $250K – $3M | 39 | Leads | Active | ~1 mo | Open |
| 12 | ▶ Point Nine Invest in the future of software built on AI. We partner with technical founders to provide capital, unfair shortcuts, and operational support to accelerate their learning and help them reach their potential. We position ourselves as the first institutional investor for v0.9 stage founders. Berlin | $1M – $10M | 36 | Leads | Active | ~1 wk | Req'd |
| 13 | ▶ 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 | 25 | Follows | Active | ~2 wks | Open |
| 14 | ▶ Companyon Ventures Companyon backs a small number of capital-efficient, founder-led B2B software companies at the seed-to-Series-A transition and pairs capital with hands-on GTM, talent, and fundraising support. Boston | $2M – $8M | 22 | Leads | Active | — | Open |
| 15 | ▶ First Round Capital Beginnings matter. We work with founders exclusively at the earliest stages of company building, often when all they have is an 'imagine if.' We look for compelling and contrarian insights into how the world works—what do you understand about a market that others miss? Our role is to accelerate the path from idea to product-market fit through embedded partnership. San Francisco | $750K – $4M | 28 | Leads | Active | ~2 wks | Req'd |
| 16 | ▶ 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 |
| 17 | ▶ 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 | 33 | Leads | Active | ~2 mo | Open |
| 18 | ▶ Sierra Ventures Sierra believes enterprise software is being fundamentally transformed by cloud computing and AI. They invest in technical founders building the next generation of enterprise solutions that deliver superior ROI through better efficiency, automation, and capability. The firm particularly focuses on infrastructure, security, healthcare innovation, and emerging deep tech. San Mateo, California | $500K – $15M | 28 | Both | Active | ~2 wks | Req'd |
| 19 | ▶ Entrepreneurs Roundtable Accelerator (ERA) NYC has tremendous entrepreneurial talent but lacked a structured environment for early-stage founders. ERA provides capital, intense mentorship, and network access to help founders build market-leading companies. Every sector deserves innovation. New York | $150K – $150K | 39 | Leads | Active | ~2 mo | Open |
| 20 | ▶ FirstMark We back disruptive founders building category-defining companies. Our approach is founder-first, long-term, and deeply operational. We take the longest view in the room, operate with excellence and integrity, stay curious at the bleeding edge, and invest heavily in building community. New York | $250K – $10M | 32 | Leads | Active | ~2 wks | Req'd |
| 21 | ▶ 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 | 16 | Leads | Active | ~2 wks | Open |
| 22 | ▶ 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 |
| 23 | ▶ Rainfall Ventures We invest in world-class founders solving significant problems. We prioritize founder quality, founder-problem fit, and values-aligned partnerships. We help exceptional founders become category leaders early, before they become obvious trends. Los Angeles | $500K – $5M | 41 | Leads | Active | ~2 wks | Req'd |
| 24 | ▶ ZhenFund Believe in innovation, risk-taking, and young talent. Best entrepreneurs are rare and precious. Provide quick capital, friendly terms, genuine commitment. Help but don't complicate. Monthly founder support. Beijing | $250K – $3M | 25 | Leads | Active | ~2 wks | Open |
| 25 | ▶ Evantic Capital At the intersection of generational talent and transformative artificial intelligence. Evantic backs exceptional founders building AI-first B2B software, infrastructure, and platform businesses with the potential to become global market leaders. London | $1M – $60M | 10 | Both | Active | — | — |
| 26 | ▶ 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 |
| 27 | ▶ 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 |
| 28 | ▶ 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 | 16 | Leads | Active | ~2 mo | Req'd |
| 29 | ▶ Mucker Capital Venture capital should be accessible to exceptional entrepreneurs anywhere. Great companies can be built outside Silicon Valley with the right capital, operational expertise, and network support. Santa Monica | $100K – $15M | 21 | Leads | Active | ~2 mo | Open |
| 30 | ▶ 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 |
| 31 | ▶ 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 31 VC firms that actively invest in developer tools & infrastructure + marketing & adtech 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 developer tools & infrastructure + marketing & adtech investors is $2.8M – $2.8M, with a full range from $100K – $60M. The distribution breaks down as: 3 firms in the <$500K range, 3 firms in the $500K-$1M range, 5 firms in the $1M-$2M range, 7 firms in the $2M-$5M range, 10 firms in the $5M-$10M range, 3 firms in the $10M+ range.
Among the 31 firms tracked, 97% lead or co-lead rounds, and 3% 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 developer tools & infrastructure + marketing & adtech investors combine domain expertise with an active portfolio in the space. Among these firms, 29% prefer warm introductions, and the average firm has 31 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.