B4 Capital
Venture capitalActively deployingPre-Seed–Late Stage
Fund manager profile
B4 Capital is a venture fund manager. SEC filings show 1 venture fund on record, most recently B4 Capital Fund I, LP ($20M offering) filed February 2026.
Source: SEC EDGAR Form D filings. Firm website data not yet available.
What they invest in
from 75 of 165 portfolio companiesAI & Machine Learning ×42Enterprise Software ×25SaaS ×21Healthtech ×18Biotech ×12Fintech ×11Data & Infrastructure ×9Digital Health ×9
HQs:United States×41India×4Indonesia×1Nigeria×1
Investments · 165 tracked
founders shown can be your intro pathBiotechCarlsbad, US
Kevin Sidow(Director)Shariq Hussain(Executive Officer)Alexander Arrow(Executive Officer)Jonathan Root(Director)Robert Mittendorff(Director)Sharon Schulzki(Executive Officer)
Board seatRobert Mittendorff· per SEC Form D · $64.5M raise · filed Feb 2025
Fervo Energy develops next-generation geothermal technology using advanced drilling and sensing techniques to unlock carbon-free, 24/7 power generation in previously uneconomic locations.
CleantechClimate TechEnergyHouston, US
Tim Latimer(Founder & CEO)inJack Norbeck(Founder)inDavid Thomas Danielson(Director)Nicholas Walrod(Director)Ion Yadigaroglu(Director)
Meesho operates an online marketplace that connects small businesses and individual entrepreneurs with customers across India, offering logistics, payments, and support services to help sellers manage their operations.
E-commerceEnterprise SoftwareBengaluru, IN
Vidit Aatrey(Founder/CEO)inSanjeev Barnwal(Founder/CTO)inSanjeev Kumar(Executive Officer, Director)Sumer Juneja(Director)Mohit Bhatnagar(Director)Ashutosh Sharma(Director)
Aktana provides a real-time orchestration platform for pharmaceutical marketing that coordinates digital and field engagement across channels to reach healthcare professionals at optimal times.
AI & Machine LearningEnterprise SoftwareSales TechSan Francisco, US
Anthony Glenning(Director)Jin Huang(Executive Officer)Al Wiegman(Director)Rob Willson(Executive Officer)Eric Gilbert(Director)Marc-david Cohen(Executive Officer)
Board seatRobert Mittendorff· per SEC Form D · $30M raise · filed Oct 2020
Atomwise uses artificial intelligence and machine learning to discover novel small-molecule drugs, with a current focus on developing treatments for immune and inflammatory diseases.
AI & Machine LearningBiotechDeep TechSan Francisco, US
Robert Mittendorff(Director)Adam Seabrook(Director)Linda Maxwell(Director)Mike Varney(Director)Izhar Wallach(Executive Officer, Director)Yan Zhao(Executive Officer)
Board seatRaj Ganguly· per SEC Form D · $127M raise · filed Aug 2020
New York, US
Board seatRobert Mittendorff· per SEC Form D · $232.9M raise · filed Sep 2025
Goodfire is a research company developing interpretability tools to understand and design AI systems.
AI & Machine LearningDeveloper ToolsEnterprise SoftwareSan Francisco, US
Deedy Das(Director)Nnamdi Iregbulem(Director)Daniel Kang(Director)Tom McGrath(Director)Daniel Balsam(Director)Eric Ho(Executive Officer, Director)
Board seatYan-David “Yanda” Erlich· per SEC Form D
LevelTen Energy operates a platform that connects renewable energy developers with customers and market participants, facilitating project visibility and deal-making in the renewable energy sector.
B2B MarketplacesCleantechClimate TechEnergySaaSSeattle, US
Bryce Smith(Executive Officer, Director)Smith Bryce(Executive Officer, Director)William Thomas(Executive Officer)
BoardDavid Cohen(Director)Greg Lyons(Director)
Board seatKarly Wentz· per SEC Form D
Nalu Medical develops medical devices including a neurostimulation system for managing intractable chronic pain.
HealthtechMedical DevicesCarlsbad, US
Board seatRobert Mittendorff· per SEC Form D
Notable Labs operates an automated laboratory that tests combinations of existing drugs against individual patients' blood cancer cells to identify effective treatment options for patients whose cancers have become resistant to standard therapies.
BiotechHealthtechMedical DevicesSan Francisco, US
Matthew De Silva(Founder/CEO)inPete Quinzio(Founder)in
Board seatAdam Seabrook· per SEC Form D · $10.3M raise · filed Mar 2023
Numerion combines drug discovery expertise with machine learning and computational chemistry.
AI & Machine LearningBiotechHealthtechMedical DevicesSan Francisco, US
Alex Levy(Founder)inIzhar Wallach(Founder)inSteve Worland(CEO)Pamela Tsuruda(VP, Biology)Mark Sabat(VP, Medicinal Chemistry)Kate Stafford(VP, Machine Learning)
Board seatAdam SeabrookRobert Mittendorff· per SEC Form D
Positive Development provides autism therapy and developmental care services for neurodivergent children and their families.
Digital HealthHealthtechMedical DevicesMental HealthMclean, US
Mike Suiters(Executive Officer, Director)Nick Whitehead(Director)Brenton Fargnoli(Director)
BoardDaniel Gebremedhin(Director)John Banta(Director)
Board seatAdam SeabrookNick Whitehead· per SEC Form D
Milwaukee, US
Robert Hoyler(Executive Officer)Arvind Subramanian(Director)Justin Nicols(Executive Officer, Director)Jefferson DeAngelis(Director)Kurt Brenkus(Director)Marc Kiven(Director)
Board seatAdam Seabrook· per SEC Form D · $20M raise · filed May 2024
BiotechBelmont, US
Langdon Miller(Executive Officer)David Johnson(Executive Officer, Director)Clayton D. Knox(Executive Officer)
BoardPeter Colabuono(Director)Alan Colowick(Director)Jason Pitts(Director)
Board seatRobert Mittendorff· per SEC Form D · $120.5M raise · filed Nov 2025
Chicago, US
Board seatAdam Seabrook· per SEC Form D · $40.1M raise · filed Sep 2024
New York, US
Board seatRobert Mittendorff· per SEC Form D · $30.1M raise · filed Sep 2025
Ansible Health develops technology and data-driven solutions to improve quality of life for patients with chronic obstructive pulmonary disease (COPD).
Digital HealthHealthtech
Apptronik builds humanoid robots designed to perform repetitive, physically taxing, and dangerous tasks in warehousing and manufacturing environments, aiming to free workers for higher-value activities.
Advanced ManufacturingAI & Machine LearningHardwareRobotics
Jeff Cardenas(CEO)
Axiom Math is a platform that enables users to test proof verification, extract theorems, and experiment with proof transformations quickly.
AI & Machine LearningDeep TechEdTech
Carina Hong(Founder & CEO)
BlackBuck operates a technology platform for the trucking industry.
B2B MarketplacesLogistics & Supply ChainSaaSBangalore, IN
Rajesh Yabaji(Chairman, Managing Director and CEO)inChanakya HRidaya(Executive Director and COO)inRamasubramaniam B(Executive Director and Head - New Initiatives)inSatyakam G N(Chief Financial Officer)in
BuildOps provides operational management software for commercial contractors, integrating project management, accounting, and AI-driven intelligence to streamline field-to-ledger workflows across North America.
AI & Machine LearningConstruction TechEnterprise SoftwareSaaS
Alok Chanani(CEO)
Carlsmed develops AI-enabled personalized spine surgery solutions, with its aprevo platform designed to tailor each device to individual patients and improve outcomes while reducing healthcare costs.
AI & Machine LearningHealthtechMedical DevicesCarlsbad, US
Mike Cordonnier(Chairman and Chief Executive Officer)
Carrick Therapeutics is a biopharmaceutical company with a leadership team experienced in oncology drug development and commercialization.
BiotechDigital HealthHealthtechMedical Devices
Timothy Pearson(CEO)Ash Bahl(CSO)Jenny Horsfield(CBO)Stuart McIntosh(CMO)David Sutherland(VP Finance & Controller)
Clari, merged with Salesloft, provides an AI-powered system for revenue prediction and optimization serving enterprise customers.
AI & Machine LearningSaaSSales TechSunnyvale, US
Mark Gainey(Director)Venkat Rangan(Executive Officer, Director)Andy Byrne(Executive Officer, Director)Enrique Salem(Director)Ajay Agarwal(Director)Aaref Hilaly(Director)
Code Metal builds "Provable AI" software that helps engineering teams translate, verify, and optimize code across programming languages, architectures, and hardware targets while preserving behavior.
AI & Machine LearningDeep TechDeveloper ToolsBoston, US
Richard Alexander Showalter-Bucher(Director, Promoter)Peter Morales(Co-Founder & CEO)Steve Loughlin(Director)Ryan Aytay(President & COO)Alex Showalter-Bucher(Co-Founder & SVP of Technology)Laura Shen(EVP & Head of Growth)
CompanyCam is a construction management platform that enables field teams to document projects through photos, videos, and voice-assisted AI tools, organizing job site data with cloud storage and integrations for reporting, payments, and team collaboration.
AI & Machine LearningCloud ComputingConstruction Tech
LUKE HANSEN(Executive Officer, Director)
DataRobot develops an AI and machine learning platform that automates model development and deployment for enterprises.
AI & Machine LearningData & InfrastructureDeveloper ToolsEnterprise SoftwareBoston, US
Jeremy Achin(Executive Officer, Director, Promoter)Harry Weller(Director)Thomas de Godoy(Executive Officer, Director, Promoter)Christopher Lynch(Director)
EvenUp provides an AI-powered claims intelligence platform for personal injury law firms to draft, review, and strengthen cases.
AI & Machine LearningLegalTech
Rami Karabibar(Chief Executive Officer)inRaymond Mieszaniec(Chief Operating Officer)inSaam Mashhad(Chief of Product & Legal Operations)in
Evidation collects and analyzes real-world health data from millions of community members to enable clinical research and health programs across various medical conditions.
BiotechData & InfrastructureDigital HealthHealthtechSan Francisco, US
David Fleshman(Director)Rowan Chapman(Director)Christine Lemke(Executive Officer, Director)Deborah Kilpatrick(Executive Officer, Director)
FalconX is a digital assets prime brokerage providing institutional clients with 24/7 access to liquidity and capital solutions through proprietary technology designed for risk management in volatile markets.
Crypto & Web3Fintech<UNKNOWN>, US
Raghu YarlagaddainAustin ReidinSuzy WaltherinBrian CristinVanessa ZhanginShekhar Kirani(Executive Officer, Director)
Finku is an AI-powered personal financial management app for Indonesian consumers that tracks transactions via manual entry, chat with an AI assistant, or document scanning, and provides budgeting and financial insights.
AI & Machine LearningFintechJakarta, ID
Reinaldo Tendean(Founder)in
Flutterwave provides payment processing infrastructure and tools that enable businesses and financial institutions across Africa to send and receive payments securely and efficiently.
FintechLagos, NG
Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.
Frequently asked questions
- What stage does B4 Capital invest at?
- B4 Capital invests at the Pre-Seed, Seed, Series A, Series B, Series C, Growth, Late Stage stages.
- What is B4 Capital's typical check size?
- B4 Capital typically writes checks of $10M – $50M.
- What sectors does B4 Capital focus on?
- B4 Capital focuses on AI & Machine Learning, Biotech, Cleantech, Climate Tech, Cloud Computing, Digital Health, Energy, Enterprise Software, Fintech, Healthtech, Impact & Social Good, Medical Devices.
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