68 VC firms investing in biotech & life sciences at the Series B stage.
F4 Fund tracks 68 VC firms that actively invest in biotech & life sciences at the Series B stage, with check sizes ranging from $100K – $100000M (median: $7.8M – $7.8M). As of April 2026, and 94% 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 | ▶ Versant Ventures Transform academic discoveries into breakthrough therapeutic companies. Partner with exceptional founders to build sustainable biotech companies with significant commercial opportunity. Leverage in-house discovery engines to de-risk company creation and accelerate time to clinic. San Francisco | $1M – $50M | 12 | Leads | Active | 3+ mo | Req'd |
| 2 | ▶ Windham Venture Partners We invest in people solving difficult problems and building category-defining products in healthcare. We partner with visionary leaders at the intersection of medical technology and digital health to create transformative solutions that improve patient outcomes. New York | $1M – $5M | 33 | Leads | Active | ~2 mo | Req'd |
| 3 | ▶ 7wire Ventures Invest in early-stage digital health companies that empower informed, connected health consumers to make confident decisions about their health. Focus on removing friction from healthcare, providing transparency, and enabling people to take control of their health journey through technology. Particular emphasis on solving structural problems in chronic disease management, mental health, reproductive health, aging in place, and specialty care navigation. Chicago | $100K – $5M | 31 | Both | Active | ~2 wks | Open |
| 4 | ▶ 5AM Ventures Fund and build next-generation life sciences companies solving important healthcare needs through cutting-edge breakthroughs in medicine and science. Partner closely with management teams to maximize returns across all portfolio companies through hands-on operational support, strategic guidance, and access to networks of experienced life science leaders. San Francisco | $500K – $20M | 24 | Both | Active | ~2 wks | Open |
| 5 | ▶ OrbiMed Advisors Healthcare is one of the most compelling long-term investment opportunities globally, driven by aging demographics, rising healthcare spending, and continuous scientific innovation. We invest across the entire healthcare value chain to drive innovation and address unmet medical needs. New York | $1M – $75M | 21 | Both | Active | ~2 mo | Open |
| 6 | ▶ Flagship Pioneering Create first-in-category bioplatform companies through scientific innovation and systematic entrepreneurship. Combine institutional scale with pioneer creativity to build breakthrough life sciences companies. Cambridge | $500K – $15M | 20 | Leads | Active | ~1 mo | Req'd |
| 7 | ▶ Third Rock Ventures Breakthrough science merged with operational rigor creates transformational opportunities in life sciences. We identify emerging fields at the intersection of science and unmet medical need, then actively shape company formation working with scientific founders and expert advisors to design strategy from inception. Boston | $2M – $50M | 20 | Leads | Active | ~1 mo | Req'd |
| 8 | ▶ Newpath Partners Venture capital can do more than fund companies—it can create them from the ground up. Newpath Partners specializes in building biotechnology companies in partnership with leading academic scientists, focusing on breakthrough biology platforms in gene editing, regenerative medicine, and transformational therapeutics that address the greatest unmet medical needs. Boston | $10M – $200M | 13 | Leads | Active | ~2 mo | Req'd |
| 9 | ▶ Balderton Capital Balderton Capital backs European-founded technology companies with visionary founders building transformative businesses. The firm combines patient capital, operational expertise, and founder support to enable European entrepreneurs to build world-class companies. | $500K – $15M | 193 | Leads | Active | ~2 wks | Open |
| 10 | ▶ Jazz Venture Partners Breakthroughs at the convergence of technology, science, and humanity improve how we live, work, and experience the world. We invest in transformative technologies for human performance and wellbeing. San Francisco | $100K – $5M | 32 | Both | Active | ~2 wks | Req'd |
| 11 | ▶ Acre Venture Partners Driving positive, lasting change in food and agriculture creates exceptional financial outcomes. Impact and return aren't trade-offs—they're intertwined. Both are essential. We invest in technologies and companies addressing human health, planetary well-being, responsible production, and climate solutions. Santa Monica | $500K – $5M | 29 | Leads | Active | ~1 mo | Req'd |
| 12 | ▶ Health Technology Holding (HTH) Science-driven venture capital focused on breakthrough healthcare innovations. Deep scientific rigor in diligence with mechanism-of-action understanding, proof-of-concept validation, and extensive KOL/clinician engagement. Backed by Zambon Group pharmaceutical expertise. Italy | $500K – $1M | 6 | Follows | Active | ~2 mo | Req'd |
| 13 | ▶ Atinum Investment Atinum Investment identifies and invests in companies solving fundamental problems through technology innovation and market disruption. The firm specializes in growth-stage startups and paradigm-shifting companies across diverse sectors. | $500K – $10M | 53 | Leads | Active | ~2 wks | Open |
| 14 | ▶ Cultivian Sandbox Ventures Building next-generation food and agriculture technology companies that commercialize solutions for sustainable production, equitable distribution, and healthy consumption. Partners with strategic investors to drive systemic impact in food systems. Chicago | $1M – $10M | 18 | Both | Active | ~2 mo | Open |
| 15 | ▶ Dimension Technology and biology are converging to create the next generation of transformative companies. The digitization of life sciences—driven by exponential growth in biological data and advances in AI/ML—is enabling a new class of platform companies that will dominate the industry. Tomorrow's biotech will be built by teams of three: a biologist, a chemist, and a computer scientist. San Francisco | $1M – $15M | 18 | Leads | Active | ~2 mo | Open |
| 16 | ▶ Digitalis Ventures Complex health problems require multidisciplinary teams combining deep technical, financial, and domain expertise. We invest in breakthrough science and technology-enabled solutions across human and animal health. New York | $250K – $50M | 41 | Leads | Active | ~2 mo | Req'd |
| 17 | ▶ Baruch Future Ventures (BFV) Climate restoration through identification and scaling of 'n of 1' technology opportunities combining innovative tech, viable business models, and visionary leadership. Focus on achieving $1B+ valuations in <10 years with 'scale and speed' mentality. Menlo Park | $250K – $10M | 34 | Leads | Active | ~2 mo | Open |
| 18 | ▶ Spark Capital Spark Capital backs transformative products built by creators with genuine vision and technical depth. We believe that the best way to evaluate a founding team is not through credentials or market analysis, but by experiencing their product firsthand. Product comes first, and everything else follows. | $500K – $60M | 59 | Both | Active | ~2 wks | Open |
| 19 | ▶ TELUS Pollinator Fund for Good We refuse to compromise between doing good and delivering strong financial and commercial returns. Portfolio companies gain access to TELUS's commercial networks, data-rich platforms, and deep expertise across agriculture, health, and connectivity giving them a unique edge as they scale. Vancouver | $1M – $20M | 12 | Both | Active | ~1 mo | Open |
| 20 | ▶ Refactor Capital The most enduring companies are created by founders willing to commercialize real science and scale real systems. We focus on hard tech at the intersection of computation and physical sciences—aerospace, biotech, energy, materials—where technical execution is the moat. Burlingame, CA | $1M – $2M | 46 | Leads | Active | ~1 wk | Open |
| 21 | ▶ AME Cloud Ventures Data, cloud, and hardware advances will create unprecedented opportunities for great companies to be built. We invest in founders with big ideas and deep tech who are building infrastructure and value chains around data. Great people are the key to company success. We provide operational expertise, strategic guidance, and access to networks of mentors and international partners, particularly in China and Asia-Pacific. Palo Alto | $5M – $50M | 25 | Leads | Active | ~2 wks | Open |
| 22 | ▶ Amplify Partners The best companies will be built by technical founders - engineers, researchers, and scientists who have experienced a problem viscerally and are compelled to solve it. We invest in tools, platforms, and infrastructure for technical builders, and we partner with founders to help them evolve into leaders of generational companies. Menlo Park | $1.5M – $10M | 25 | Leads | Active | ~2 wks | Open |
| 23 | ▶ Binance Labs Support visionary founders building transformative technologies across blockchain, AI, and biotechnology. Provide capital, technical resources, and access to Binance's 300M+ user base and infrastructure. Partner for long-term value creation with founder-centric approach. Cayman Islands | $100K – $5M | 20 | Both | Active | ~2 wks | Open |
| 24 | ▶ AgFunder Progress in food, agriculture, and human health lags other sectors due to structural constraints. We invest in deep technologies that remove these bottlenecks at scale—whether AI, biology, robotics, or materials science. We're not intimidated by threats to the status quo. Silicon Valley | $500K – $5M | 31 | Both | Active | ~1 mo | Open |
| 25 | ▶ Giant Ventures The biggest companies of the century will be built solving the world's most pressing problems. We champion ambitious founders using technology to reshape civilization around climate, health, and inclusive capitalism. London | $500K – $15M | 30 | Both | Active | ~2 mo | Open |
| 26 | ▶ NVIDIA Expand the AI ecosystem by backing technology visionaries solving complex problems to reshape our world. Focus on game changers and market makers in AI, robotics, biotech, autonomous vehicles, and applied AI. Leverage NVIDIA's unique position as GPU infrastructure leader to identify and support companies that will drive adoption of NVIDIA technology. | $20M – $100000M | 30 | Both | Active | ~2 wks | Open |
| 27 | ▶ Playground Global Where breakthrough science turns into world-changing companies. We back scientists and engineers at the earliest stages—pre-formation and pre-product—at the intersection of AI, engineered biology, next-gen compute, and hard science. If it's too early for everyone else, it's probably right for us. Palo Alto | $1M – $20M | 30 | Both | Active | 3+ mo | Req'd |
| 28 | ▶ Tribe Capital Apply AI and data science to identify and invest in N-of-1 companies with 10-100x potential. Back founders who expand individual freedom and decentralize power. Invest in companies that embody principles from the Bill of Rights (voice, fair process, proportionality, user power) and Bitcoin whitepaper (trust-minimized, verifiable, aligned incentives, open access). Menlo Park | $500K – $5M | 60 | Leads | Active | ~1 wk | Open |
| 29 | ▶ Collab Fund Investing at the intersection of for-profit and for-good. Companies that make the world better AND deliver strong financial returns. The Villain Test ensures both impact and profit alignment. New York | $500K – $10M | 38 | Leads | Active | ~2 wks | Open |
| 30 | ▶ F-Prime Capital Partner with visionary founders to turn bold ambitions into world-changing breakthroughs in life sciences, technology, healthtech, and crypto. Distinctive 'technical-risk-yes, regulatory-risk-no' filter ensures clear pathways to success. Cambridge | $250K – $15M | 24 | Leads | Active | ~1 wk | Open |
| 31 | ▶ Prelude Ventures Climate is the biggest challenge of our lifetime and the greatest business opportunity of the coming decades. We back visionaries accelerating climate innovation that will reshape our global economy for the betterment of people and planet. The most successful companies are born from a vision for a better future and the ability of that vision to create large, lasting positive impact. We invest in frontier technologies addressing climate across seven sectors: Built Environment, Carbon Management, Compute, Energy, Food & Agriculture, Manufacturing & Industrials, and Mobility. The best ideas come from everywhere—we operate where many venture firms can't or won't. San Francisco | $100K – $5M | 50 | Both | Active | ~2 mo | Open |
| 32 | ▶ Innovating Capital Technology can have a highly disruptive impact on society. We back founders on the forefront of innovation with clear vision towards positive change, leveraging domain expertise to ensure value creation. Founder-first approach with operational support. New York | $250K – $5M | 34 | Leads | Active | ~1 mo | Open |
| 33 | ▶ Korea Investment Management Co. Back the global winners of tomorrow through disciplined venture capital and growth equity investing. We are a trustworthy partner providing capital, operational expertise, and access to pan-Asian networks. Fund-oriented professional VC with fundamental philosophy of quality, responsibility, and stability. | $500K – $100M | 20 | Leads | Active | ~1 mo | Open |
| 34 | ▶ B Capital Group Back extraordinary entrepreneurs throughout the company-building lifecycle from seed to IPO. Combine venture capital expertise with BCG management consulting to accelerate value creation. Support founders with capital, strategic guidance, and access to global networks. San Francisco | $250K – $50M | 30 | Leads | Active | ~2 wks | Req'd |
| 35 | ▶ HCVC We back founders on a mission to industrialize scientific and technological progress. Hardtech startups solve difficult technological problems using interdisciplinary mixes of technology and engineering. We provide patient, supportive capital and community to help founders navigate R&D cycles and build technically defensible products. Paris | $100K – $2.5M | 30 | Leads | Active | ~2 mo | Open |
| 36 | ▶ Wing Venture Capital The AI-first transformation of business will be as big as digital, mobile, and cloud combined. We invest in companies building the AI-first technology stack: data foundations, AI tools, autonomous applications, and product-led growth companies that accelerate adoption. Founders building at any layer of this stack can reach goals and uncover opportunities previously unattainable. Palo Alto | $200K – $20M | 30 | Leads | Active | ~2 wks | Open |
| 37 | ▶ 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 |
| 38 | ▶ Acequia Capital (AceCap) Acequia Capital partners with technical founders and product teams building the next wave of global businesses. They provide more than capital—experienced operators offer strategic guidance on product roadmap, technology strategy, business model, and GTM execution. The firm is a center of a global innovation ecosystem with unique capability to detect earliest signal in emerging technology trends. Seattle | $1M – $25M | 25 | Leads | Active | ~1 mo | Open |
| 39 | ▶ Caffeinated Capital Support founders pursuing their life's work with an alternative to the hype cycle: the luxury of long-term thinking. We support founders building category-defining companies across all sectors that will last for lifetimes. San Francisco | $1M – $5M | 15 | Leads | Active | — | — |
| 40 | ▶ Vanedge Capital Deep technology and hard tech company investing at inflection points. Partner with technical founders building infrastructure-level solutions for global scale. Founded 2010 on belief that next generation of transformative companies require deep technical expertise, not just capital. Vancouver | $1M – $15M | 42 | Both | Active | ~2 wks | Open |
| 41 | ▶ Moderne Ventures Generalist investors with vertical expertise. We invest in bold, broad, multi-vertical technology companies applicable to multi-trillion dollar industries (real estate, finance, insurance, sustainability). Our distinctive Moderne Passport program creates value by connecting 1,500+ corporate executives with portfolio companies, generating customers, strategic partnerships, and operational guidance. Chicago | $2M – $25M | 20 | Leads | Active | ~2 wks | Req'd |
| 42 | ▶ New Enterprise Associates (NEA) NEA partners with ambitious founders at every stage of company building, from pre-seed through IPO. They invest at the intersection of technology and healthcare, believing the most transformational innovation occurs where deep domain expertise meets world-class technical founders. NEA serves as both capital provider and active operator. Menlo Park | $1M – $50M | 20 | Both | Active | ~2 mo | Open |
| 43 | ▶ Alumni Ventures We democratize venture capital by providing individual accredited investors with professional-grade access to elite venture opportunities. We leverage our massive 850,000+ community network and 11,000+ investors to create unique value for founders, sourcing and diligencing deals alongside top-tier VCs (a16z, Sequoia, Khosla) without leading rounds. Our network is our competitive advantage—it compounds value for all stakeholders. Manchester, NH | $250K – $5M | 54 | Follows | Active | ~2 wks | Open |
| 44 | ▶ Two Sigma Ventures As the world becomes more information-rich, most transformative new companies will leverage data science, machine learning, and advanced computing power. We back founders building breakthrough solutions at this intersection. New York | $2M – $25M | 27 | Leads | Active | ~1 mo | Req'd |
| 45 | ▶ Horizons Ventures Invest in deep science and disruptive technology companies that solve fundamental human problems—inequality, health, climate adaptation. We back founders with vision, instinct, and drive to scale impact. Hong Kong | $1M – $25M | 35 | Leads | Active | ~1 mo | Open |
| 46 | ▶ Anthem Venture Partners Identify exceptional founders and unique talent combinations building contrarian, under-the-radar technology solutions. Provide hands-on support, operational guidance, and board-level involvement to early-stage Series A and B companies, primarily in Southern California. We fight for our founders and expect all investments to succeed. Santa Monica | $1M – $5M | 12 | Leads | Active | ~2 wks | Open |
| 47 | ▶ Felicis Ventures Back founders building iconic companies that transcend boundaries. We invest directly in their growth to make them unbreakable. Founded on principle that luck isn't made, it's engineered. Founders are our customer, not LPs. We always vote shares with founders and provide 1% non-dilutive founder development capital alongside every first check. Menlo Park | $500K – $15M | 25 | Both | Active | ~1 wk | Open |
| 48 | ▶ K5 Global K5 Global backs category-defining companies from inception to IPO. The firm leverages exceptional networks across media, entertainment, politics, finance, and technology to provide strategic value beyond capital. We believe the best companies are built by founders who can access world-class talent, capital, and strategic relationships. Los Angeles | $1M – $3M | 30 | Leads | Active | ~1 mo | Open |
| 49 | ▶ Khosla Ventures Technology-based economic disruption of large markets through black swan investments. We seek founders with domain expertise and unreasonable conviction to build billion-dollar companies solving the world's largest problems. Menlo Park | $500K – $50M | 30 | Both | Active | ~2 wks | Open |
| 50 | ▶ Valia Ventures We back technically ambitious founders building tomorrow's most iconic companies in frontier sectors like AI, hardtech, robotics, healthcare, and fintech. We believe great companies come from founders willing to tackle complex problems that generalist funds avoid. New York | $250K – $1.5M | 15 | Leads | Active | ~2 wks | Req'd |
| 51 | ▶ Battery Ventures Battery Ventures operates as a stage-agnostic firm backing technology-driven category leaders across all growth stages from seed to buyout. The firm believes the best tech investments span the entire founder journey, and they practice collaborative, research-focused investing with embedded operational support through their Portfolio Services platform. They seek technical founders with deep domain expertise and experienced operators building in four core sectors: Application Software, Infrastructure Software, Consumer, and Industrial Tech + Life Science Tools. Boston | $1M – $500M | 20 | Both | Active | ~2 wks | Open |
| 52 | ▶ In-Q-Tel (IQT) Transformative national security solutions emerge from early-stage private-sector startups developing frontier technologies. IQT identifies, evaluates, and leverages innovations to accelerate government adoption while enhancing commercial success. Washington | $250K – $3M | 20 | Leads | Active | ~1 mo | Open |
| 53 | ▶ Sawari Ventures North Africa and Africa possess tremendous entrepreneurial talent. Strategic capital combined with operational expertise can unlock transformative solutions that reshape industries. We invest in founders solving region-critical problems. Cairo | $200K – $2M | 20 | Leads | Active | ~1 mo | Open |
| 54 | ▶ Mubadala Mubadala partners with world-class companies and institutions to drive transformational growth across strategic sectors and geographies. We believe in long-term value creation through patient capital, operational expertise, and global partnerships aligned with Abu Dhabi's economic diversification. Abu Dhabi | $5M – $5000M | 36 | Both | Active | ~2 mo | Req'd |
| 55 | ▶ Lux Capital Turn sci-fi into sci-fact by backing founders solving the most vexing puzzles facing humanity. We believe in counter-conventional solutions and contrarian positions in deep technology. We champion companies working at the intersection of breakthrough science and transformational technology, led by visionary founders who are equal parts mad scientist and business mastermind. New York | $100K – $100M | 17 | Leads | Active | ~2 wks | Req'd |
| 56 | ▶ Emerson Collective Emerson Collective invests in entrepreneurs and innovators driven by purpose, seeking consequential companies that deliver both generational impact and venture-scale returns. The firm targets sectors where biggest market opportunities meet meaningful impact levers: energy & environment, digital health, fintech, education, work, and media. Palo Alto | $10M – $700M | 12 | Both | Active | ~1 mo | Req'd |
| 57 | ▶ Human Capital Partner with exceptional founders to build generational companies that define the world's most critical industries. We provide not just capital but assemble teams of the highest caliber through our 5,000+ member builder community and deep operational expertise. San Francisco | $250K – $200M | 20 | Both | Active | ~1 wk | Open |
| 58 | ▶ Trousdale Ventures We invest in mission-driven companies that dare to tackle impossible challenges, striving to transform industries and create lasting societal impact. We seek founders with audacity to dream big, resilience to persevere, and potential to build forever companies that shape human history. Los Angeles | $5M – $25M | 30 | Leads | Active | ~1 mo | Open |
| 59 | ▶ Gigafund Back the world's most ambitious and transformative entrepreneurs capable of building world-defining companies over 20+ years. Invest in founders with independent thought and first-principles vision to solve humanity's biggest problems across all sectors and geographies. Austin | $1M – $500M | 18 | Leads | Active | 3+ mo | Open |
| 60 | ▶ Not Boring Capital Invest in companies with compelling stories to tell. We couple capital deployment with media storytelling through the Not Boring newsletter, creating a unique flywheel that amplifies both company and fund narrative. New York | $100K – $2M | 9 | Both | Active | ~2 wks | Req'd |
| 61 | ▶ HOF Capital We invest in relentlessly ambitious entrepreneurs working on fundamental technology and business model innovations that advance humanity toward abundance. Our March to Abundance thesis focuses on four primary areas: (1) freedom from repetitive work through AI and automation, (2) freedom to transact and financial security, (3) freedom from genetic disease and biological limitations, (4) interconnection of humanity through new mediums. New York | $500K – $10M | 25 | Both | Active | ~2 wks | Req'd |
| 62 | ▶ Pillar VC We invest in technical breakthroughs that overcome the world's greatest challenges. We partner at inception with technically brilliant dreamers who see past impossible to inevitable. We evaluate scientific opportunities through both commercial potential and human impact lenses. Boston | $100K – $10M | 20 | Leads | Active | ~2 mo | Open |
| 63 | ▶ Argonautic Ventures AI is a milestone in data maturity progression, not a product category. Argonautic invests in founders building data-centric solutions across infrastructure (horizontal) and vertical markets. Multi-fund structure allows pre-seed to Series B deployment with unified thesis: recognizing verticals at different data adoption stages and deploying capital to those crossing inflection points into AI operationalization. | $250K – $1M | 5 | Both | Active | ~2 wks | Open |
| 64 | ▶ 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 |
| 65 | ▶ Gaingels Equity of access and representation in venture capital delivers positive returns. Diverse and underrepresented (including LGBTQ+) leaders of high-growth companies deserve capital access. When these founders succeed, they influence ecosystems and open doors for historically excluded groups. New York | $200K – $500K | 20 | Follows | Active | ~2 wks | Open |
| 66 | ▶ Cathay Innovation Startups positioned as transformation partners with Fortune 500 corporates create the most impactful solutions. We believe the next generation of market leaders will emerge through collaborative innovation between startups and incumbent enterprises, supported by global expertise and capital. Paris | $5M – $100M | 12 | Both | Active | ~1 mo | Req'd |
| 67 | ▶ Flucas Ventures Democratize access to venture capital by building large syndicates of non-traditional LPs. Invest across all stages, sectors, and geographies based on founder quality and market conviction, not category restrictions. Enable 2,000+ diverse co-investors to participate alongside marquee firms like Sequoia and Andreessen Horowitz while maintaining founder-friendly economics. Miami | $250K – $5M | 15 | Follows | Active | ~1 wk | Req'd |
| 68 | ▶ VU Venture Partners Invest in early-stage tech companies addressing world's largest market opportunities and solving humanity's biggest challenges. Leverage global distributed team to source, evaluate, and support transformational founders. San Francisco | $100K – $1M | 14 | Both | Active | ~2 mo | 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 68 VC firms that actively invest in biotech & life sciences 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 biotech & life sciences investors is $7.8M – $7.8M, with a full range from $100K – $100000M. The distribution breaks down as: 1 firms in the <$500K range, 5 firms in the $500K-$1M range, 5 firms in the $1M-$2M range, 15 firms in the $2M-$5M range, 14 firms in the $5M-$10M range, 28 firms in the $10M+ range.
Among the 68 firms tracked, 94% lead or co-lead rounds, and 6% 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 biotech & life sciences investors combine domain expertise with an active portfolio in the space. Among these firms, 33% prefer warm introductions, and the average firm has 28 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.