Define Ventures
Venture capitalSan Francisco · Pre-Seed–Series C
Investment thesis
Define Ventures believes that convergence of rapid technology innovation with consumer preferences and structural shifts in healthcare will define the industry for generations. The firm seeks to partner with principled entrepreneurs building category-defining companies that leverage this intersection of healthcare and technology, supported by a curated team combining deep healthcare expertise with a technology-driven mindset.
Source: firm website, verified Jul 21, 2026.
What they invest in
from 1 of 4 portfolio companiesDigital Health ×1Healthtech ×1
HQs:United States×8
Investments · 4 tracked
founders shown can be your intro pathFOLX is a digital healthcare platform designed for LGBTQIA+ adults, providing inclusive and affirming medical care. The platform addresses gaps in mainstream healthcare for LGBTQIA+ communities by delivering accessible services through a digital-first model.
Digital HealthHealthtech
A.G. Breitenstein(Founder)
Board seats · per SEC filings · 7
what is this? ⓘ$25.7M raise · filed Apr 2026 · via Lynne Chou O'Keefe
$54.2M raise · filed Dec 2024 · via Lynne Chou O'Keefe
$20M raise · filed Nov 2024 · via Lynne Chou O'Keefe
$20M raise · filed Feb 2024 · via Lynne Chou O'Keefe
$60M raise · filed Jun 2023 · via Lynne Chou O?Keefe, Lynne Chou O'Keefe
$32.8M raise · filed Feb 2022 · via Lynne Chou O'Keefe
$25M raise · filed Feb 2021 · via Lynne Chou-O'Keefe
Inferred from directors named on each company's SEC Form D — public regulatory data, not a portfolio list published by the firm.
Frequently asked questions
- What stage does Define Ventures invest at?
- Define Ventures invests at the Pre-Seed, Seed, Series A, Series B, Series C stages.
- What sectors does Define Ventures focus on?
- Define Ventures focuses on Healthtech.
- Where is Define Ventures located?
- Define Ventures is headquartered in San Francisco, US.
- Does Define Ventures lead rounds?
- Yes, Define Ventures leads investment rounds.
Images
Similar investors
B Capital is a venture capital firm managing over $12 billion in assets with a stage-based fund approach. The firm invests across early to late-stage companies in technology, healthcare, and energy & resilience sectors, with 200+ portfolio companies and 9 global offices.
Breyer Capital is a venture capital firm that invests in high-impact entrepreneurs with a strategic focus on companies leveraging artificial intelligence and machine learning to transform technology sectors globally.
Cottonwood Technology Fund is an early-stage deep tech venture capital fund focused on patent-driven companies in hard science sectors including photonics, quantum, advanced materials, and climatetech, with offices in the Southwest US and Northern Europe.
DCVC is a deep tech venture capital firm with over a dozen years of experience backing entrepreneurs using computational approaches to solve trillion-dollar problems across industries including AI, climate, materials science, robotics, space, and biology.
Innovestor is a Finnish investment manager that operates across venture capital, real estate, and energy storage sectors. The firm invests in early-stage technology and life science startups, energy-efficient commercial real estate, and battery storage and solar solutions. Innovestor also provides corporate venturing advisory services.