Deep tech, science-driven founders and the increasing power of computer science are the ingredients we believe will continue to produce great companies.Learn more about our team below.

David Fleck


Founder & Managing Partner

David leads Freeflow with a focus on investing in and supporting the leading science-based companies that fuel our strategy. Combining his background in finance, deal-making, business development and fundraising, he brings a unique perspective and skill set that drive the growth of Freeflow. With a particular expertise in fundraising, David is a sought after guide for the often uncharted territory of fundraising, especially for early stage deep tech companies.

David began his career as a CPA at PwC and a Consultant at Bain & Company, working on both the buy and sell side advising companies and private equity firms on investments in venture capital and leveraged buyouts, mergers, and acquisitions. During this time he learned the best practices of deal-making, including sourcing, diligence, negotiation, and execution. He then was an early product manager at Google and a senior executive at several startups, including his last, Disqus, which had a successful exit.

It was during this time that he experienced firsthand the disruptive force of computer science, particularly machine learning and artificial intelligence, and saw how it could be utilized to solve challenging technical and business problems.

David is also a member of the Information Science & Technology (IST) Council at Caltech. The Information Science and Technology (IST) initiative is an institute-wide effort that seeks to provide a new intellectual framework enabling ideas from computation to integrate into and transform disciplines across Caltech, e.g. physics, chemistry, biology and planetary sciences.

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Kevin Barrett


Managing Partner

Kevin Barrett has nearly 30 years of start-up, deal-making and operating experience in the healthcare services, medical device and life sciences industries. Among the roles he has served are: (1) executive-in-residence with Bain Capital Ventures and SV Life Sciences; (2) chief development officer of PolyMedica Corporation, the nation’s largest provider of diabetes testing supplies; (3) senior vice president of commercial operations at BG Medicine, a biotechnology start-up; and (4) chief operating officer of Synergy Informatics, a venture-funded startup sold to Quintiles Transnational, the largest provider of outsourced services to the pharmaceutical industry.

More recently, Kevin was president and CEO of Altegra Health, a private equity portfolio company that provided revenue cycle management services to health plans. Under Kevin’s leadership, Altegra grew revenue and earnings over 400%, leading to the successful sale of the company to Change Healthcare in 2015 for over $900M.

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Steve Roy


Operating Partner

Steve Roy is our Operating Partner who combines his previous experience as co-founder, start-up marketing leader and brand consultant to collaborate closely with portfolio companies to craft and amplify their stories. Prior to Freeflow, he held lead roles in strategy, marketing and communications at organizations focused on innovation, science and technology. These include start-ups A123 Systems (energy storage), Disqus (online communities), VendOp (supply chain) and Aloft AI (drone software) as well as large entities Philips, Johnson & Johnson, The National Cancer Institute and GE among others.

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Scientific Advisory Board

Adam Wierman


Adam Wierman is the Carl F Braun Professor in the Department of Computing and Mathematical Sciences (CMS) at Caltech. He served as Department Chair of CMS from 2015-2020 and as Director of the Information Sciences and Technology initiative from 2016-2025. He received his Ph.D., M.Sc., and B.Sc. in Computer Science from Carnegie Mellon University in 2007, 2004, and 2001, respectively, and has been on the faculty of Caltech since 2007. Adam works to translate research from his group to industry in areas such as decarbonizing cloud computing, smart power grid development, and applying AI to science by working with partners such as Amazon, Google, HP, IBM, Microsoft, PIMCO, Southern California Edison, VMWare, and Facebook.

Adam’s research strives to make the networked systems that govern our world sustainable and resilient. He develops new mathematical tools in machine learning, optimization, control, and economics and applies these tools to design new algorithms and markets that can be deployed in data centers, the electricity grid, transportation systems, and beyond. He is best known for his work spearheading the design of algorithms for sustainable data centers, which has led to significant industry adoption (e.g. through the startup Verrus). He is a co-author of a book on “The Fundamentals of Heavy Tails.” Currently, his work focuses on the interface of machine learning and control, with applications to sustainability.

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Dave Schaffer


Dave Schaffer is the Hubbard Howe Professor of Chemical and Biomolecular Engineering, Bioengineering, and Molecular and Cell Biology at the University of California, Berkeley. Dave also serves in leadership roles working with entrepreneurial scientists to solve the biggest challenges facing society as Director of QB3, Bakar Labs, and Bakar Fellows Program. He received a B.S. from Stanford University in 1993 and a Ph.D. from MIT in 1998, both in chemical engineering. He then conducted a postdoctoral fellowship at the Salk Institute for Biological Studies before joining Berkeley in 1999. There, he applies engineering principles to optimize gene and stem cell therapies, work that includes developing the concept of applying directed evolution to engineer targeted and efficient viral gene therapy vectors as well as new technologies to investigate and control stem cell fate decisions.
Dave has published >250 papers, has advised >110 graduate students and postdoctoral fellows, is an inventor on >50 patents, and developed technologies that have generated nine potential new drugs that are being tested in human clinical trials, including two phase 3 trials. In addition, he has co-founded seven companies from his lab, including 4D Molecular Therapeutics (NASDAQ FDMT), Ignite Immunotherapies (acquired by Pfizer), Rewrite (acquired by Intellia), and, most recently, Vivere Oncotherapies.

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Barbara Wold


Barbara Wold is Bren Professor of Molecular Biology at Caltech. Barbara is a genome scientist whose research focuses on the discovery of how gene activity is encoded in the DNA and the development of the technologies needed to figure that out. She and her research group use genomics to understand the basis of cell identity, how it is disrupted in disease, and how it can be engineered. Her group is also active in building international functional genomics databases and computational resources. Barbara served as the director of the Beckman Institute at Caltech from 2001–11, was the founder, in 2012, of the National Cancer Institute’s Center for Cancer Genomics, and from 2019-2023 she was the Director of Caltech’s Merkin Institute for Translational Research. She earned her Ph.D. from Caltech and joined the faculty in 1981.

Barbara has published more than sixty papers in the areas of developmental biology and genetics. Throughout her career, she has focused on exploring the architecture and logic of gene regulatory networks, in an effort to understand the mechanisms that drive cell state transitions in the development and differentiation of individual cells. In particular, she has investigated the ways in which these differentiation mechanisms are encoded in DNA. Much of her recent work focuses on biological information processing, developing and using new techniques such as ultra-high-throughput DNA sequencing techniques to computationally model the inputs and outputs of gene networks. Barbara’s goal is a deep understanding of biological circuit design and the mechanisms of genetics and cell development. Her lab has recently been concentrating on human disease genomics and, in particular, is looking into diseases such as Alzheimer’s, cancer, and musculoskeletal disorders.

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Advisory Board

Fred Wilson


Advisor

  • Co-founder of Union Square Ventures (USV)
  • Chairman of the NYC Department of Education’s CS4All Capital Campaign and co-Chairman of Tech:NYC
  • Freeflow LP

Chris Farmer


Advisor

  • Founder of SignalFire
  • Recognized leader in the use of machine learning & artificial intelligence to find & support investments.
  • Previously at General Catalyst and Bessemer.
  • Freeflow LP

Benjamin Clinger, P.C.


Advisor

  • Partner at Kirkland & Ellis Bay Area office with expertise in acquisitions across a wide range of sectors.
  • Previous experience on behalf of many leading private equity firms.
  • Freeflow LP

Trusted partners

We’ve dedicated thousands of hours getting to know the brilliant communities of Caltech, JPL and Berkeley. Over more than thirty investments to date, we’ve built a reputation for being good strategic partners that go the extra mile for founders.

Commercial expertise

Our startup and company-building experience in healthcare, life sciences, software, big data and machine learning enable us to identify high growth opportunities of deep  technology breakthroughs and meaningfully assist founders on their translational paths to commercial success.

Connection makers

With over 80 years of combined experience, we have relevant relationships that span Silicon Valley, Caltech, JPL, Berkeley and the Fortune 500. Whether it’s helping a founder build their team, close a partnership, or raise their next round, we routinely connect our portfolio companies to best-in-class experts, business partners, and fellow investors to win in the marketplace.

Freeflow Values


Freeflow Ventures was founded in 2019 with the idea to invest in science-driven companies that can positively impact the world and generate substantial returns for investors.

Whether its enhancing the health of the planet or people, we only invest in founders who share these ideals and goals.

As early stage investors, we operate on a combination of long-term commitments and daily dedication to the founders and teams working on large scale solutions to big market challenges.


To this end, we’re driven by five core values that don’t change.


01

Standing on Science

We believe the world is a better place when science is a primary solution to the challenges we collectively face. We’re focused on and dedicated to two of the world’s leading sources of groundbreaking scientific research and innovation: Caltech and Berkeley.


02

Disciplined Deployment

We are consistently disciplined in how, where and why we invest. We deploy our investors' capital only in high-conviction investments where the team is strong, the science is validated and the company has billion dollar potential.


03

Long-term Commitment

We are in this for the long term as it's our life’s work. We’re not motivated by status, hype or flavors of the month. Oftentimes, science takes time to arrive and so we’re built with the patience, persistence and passion necessary to see long-term success through the twists and turns that come with building great companies.


04

Bold Bets

We have the will to make big bets on game changing companies. We’re not in the business of incremental improvements. When we invest, we’re looking for companies that if successful will become new market creators or legacy market disruptors. This is our strategy for delivering fund returns for investors.


05

Beyond Capital

We are hands-on investors who apply our expertise in strategy, marketing and fundraising to solve non-science problems. While we’re not scientists, we take pride in a work ethic that shows up consistently for our teams when they have a need to drive growth, raise more money and scale operations.


Questions?

Frequently Asked Questions

We’re focused on the founder communities of Caltech and Berkeley. We spend months and sometimes years getting to know the brilliant people there working on solutions in human and planetary health.  This deeper investment of time spent with founders greatly increases our ability to invest in teams we truly believe in, with technology that’s disruptive, proprietary and on the path to commercialization. It’s a simple formula we’ve been executing since 2019 and we’ll continue to hone.

Our goal is to provide science-driven companies with non-science advantages in areas like fundraising, marketing, recruiting and strategy. Through our time, tools and resources, we help to build these capabilities within our founders and their teams. Particularly at early stages, companies that can raise awareness, build a brand and establish mindshare with key audiences gain a competitive advantage in their ability to attract talent, new investors and customers.

The deep tech companies we invest in are pursuing large-scale market opportunities measured in billions of dollars. Most of the companies in our portfolio leverage computer science, AI and machine learning which remain highly attractive assets for large companies, institutional investors and public markets.

The demand for human health products and services is essentially ‘infinite’. Aging populations and a continued rise in both chronic and acute diseases, combined with a prolonged period of medical innovation stagnancy has created an opportunity for upheaval and transformation in the healthcare industry.

Exit paths for planetary companies are also compelling given public pressure to take more impactful steps to reduce carbon and transform the energy economy more rapidly. Investment in planetary health technologies is now outpacing spending on fossil fuels.

We’re currently invested across 13 industries with 6 focused in human health and 7 in planetary health. This provides us with diverse exposure to large-scale market opportunities without over-saturation into any single trend or cycle.

Our Human Health industries include: Therapeutics, Diagnostic, Med tech/medical devices, Rx discovery & development platforms, Consumer health and Biomanufacturing.

Our Planetary Health industries include: Automation and robotics, Carbon capture and storage, Energy creation and storage, Water treatment, recovery & management, Geospatial data collection, analytics & application, Advanced/additive manufacturing and Advanced electronics.

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