The Venture Codex Logo

The Venture Codex

Define Ventures

58 West Portal Avenue Suite 258, San Francisco, California, 94127, United States

Overview

Early-stage venture capital firm investing in digital health companies.

Founded

2019

Deals ยท 12mo

8

Links

WebsiteLinkedInX (Twitter)

Stage focus

Seed
Series A
Series B

Geographic focus

United States

Sector focus

Finance
Financial Services
Venture Capital

Investment portfolio

54rounds
NAMEDATESIZE
Nuance
Sep 2026Participated
$50 MSeries A
Arintra
Aug 2026Led
$25 MSeries B
Channel Robotics
Jun 2026Participated
$3 MSeed
Blank Bio
May 2026Participated
$7 MSeed
9amHealth
May 2026Led
$26 MSeries B
Luminai
Apr 2026Participated
$38 MSeries B
Valius Sciences
Apr 2026Participated
$10 MSeed
Hyro
Oct 2025Participated
$45 MOther Equity
Foundation Health
Oct 2025Led
$20 MSeries A
Cohere Health
May 2025Participated
$90 MSeries C
Marit Health
Mar 2025Led
$3 MSeed
Layer Health
Mar 2025Led
$21 MSeries A
Nuance
Sep 2026Participated
$50 MSeries A
Arintra
Aug 2026Led
$25 MSeries B
Channel Robotics
Jun 2026Participated
$3 MSeed
Blank Bio
May 2026Participated
$7 MSeed
9amHealth
May 2026Led
$26 MSeries B
Luminai
Apr 2026Participated
$38 MSeries B
Valius Sciences
Apr 2026Participated
$10 MSeed
Hyro
Oct 2025Participated
$45 MOther Equity
Foundation Health
Oct 2025Led
$20 MSeries A
Cohere Health
May 2025Participated
$90 MSeries C
Marit Health
Mar 2025Led
$3 MSeed
Layer Health
Mar 2025Led
$21 MSeries A
54
Items
...
Browse all public portfolio deals

Insights

Time horizon

View by

Deal Distribution

Define Ventures: 54 funding rounds are recorded in the selected participation categories.All available history.
Define Ventures: 54 funding rounds are recorded in the selected participation categories. All available history
Round typeLed dealsParticipated deals
Seed56
Series A610
Series B511
Series C+04
Other Equity16

Monthly Deal Activity

Define Ventures: 54 deals are recorded across 92 months.All available history.
Define Ventures: 54 deals are recorded across 92 months. All available history
MonthDeals
Mar '192
Apr '190
May '190
Jun '190
Jul '190
Aug '190
Sep '190
Oct '190
Nov '190
Dec '190
Jan '200
Feb '202
Mar '200
Apr '200
May '202
Jun '200
Jul '201
Aug '200
Sep '200
Oct '200
Nov '200
Dec '204
Jan '210
Feb '211
Mar '211
Apr '212
May '210
Jun '211
Jul '210
Aug '211
Sep '213
Oct '211
Nov '211
Dec '210
Jan '221
Feb '221
Mar '220
Apr '223
May '220
Jun '220
Jul '220
Aug '221
Sep '221
Oct '221
Nov '220
Dec '222
Jan '231
Feb '230
Mar '230
Apr '230
May '231
Jun '232
Jul '230
Aug '230
Sep '230
Oct '231
Nov '230
Dec '230
Jan '240
Feb '243
Mar '240
Apr '240
May '241
Jun '240
Jul '240
Aug '240
Sep '240
Oct '240
Nov '240
Dec '241
Jan '250
Feb '250
Mar '252
Apr '250
May '251
Jun '250
Jul '250
Aug '250
Sep '250
Oct '252
Nov '250
Dec '250
Jan '260
Feb '260
Mar '260
Apr '262
May '262
Jun '261
Jul '260
Aug '261
Sep '261
Oct '260

Sector Breakdown

Define Ventures: Health & Life Sciences is the largest displayed sector by deal count (49 deals).All available history.

A deal can appear in multiple sectors, so sector totals may overlap. Capital represents disclosed total round sizes, not fund cheque sizes.

Define Ventures: Health & Life Sciences is the largest displayed sector by deal count (49 deals). All available history
SectorDeals
Health & Life Sciences49
Enterprise Software16
Consumer & Lifestyle8
AI & Machine Learning6
Social & Community Platforms4
Networks, Cloud & Communication3
Data, Analytics & IT3
Media & Entertainment2
E-Commerce & Retail2
Professional Services2
Marketing & Advertising1
Fintech1
Cybersecurity & Privacy1
AR/VR1

Deal Size Distribution

Define Ventures: 54 rounds have a disclosed size in the displayed size bands.All available history.

Undisclosed round sizes are excluded. Capital represents total round sizes, not fund cheque sizes.

Define Ventures: 54 rounds have a disclosed size in the displayed size bands. All available history
Round size band (USD)Deals
<$5M7
$5M-$10M5
$10M-$25M14
$25M-$50M14
$50M-$100M7
$100M-$250M7
$250M-$500M0
$500M-$1B0
$1B+0

Deals By Geography

Define Ventures: United States has the largest recorded deal count among the displayed regions (50 deals).All available history.

Top 5 of 5 regions; European countries are grouped as Europe.

Define Ventures: United States has the largest recorded deal count among the displayed regions (50 deals). All available history
RegionDeals
United States50
Singapore1
Canada1
Japan1
Europe1
Define Ventures: 20 co-investors are shown, with Flare Capital Partners sharing 5 recorded deals.All available history.

Co-Investors

Bubble size = shared deals

Click a bubble to open that fund in a new tab.

Shows up to 20 co-investors ranked by shared deals. Deals may be shared with multiple funds, so rows overlap. Capital is total round size, not fund cheque size.

Define Ventures: 20 co-investors are shown, with Flare Capital Partners sharing 5 recorded deals. All available history
Co-investorShared deals
Flare Capital Partners5
Polaris Partners5
7wireVentures4
Compound Ventures4
General Catalyst4
Google Ventures4
Lightspeed Venture Partners4
Torch Capital4
Y Combinator4
B Capital Group3
Bain Capital Ventures3
Bessemer Venture Partners3
Deerfield Management3
Founders Fund3
Frist Cressey Ventures3
Homebrew3
Leaps by Bayer3
Longitude Capital3
Qiming Venture Partners USA3
Threshold Ventures3

Investment Strategy

Define Ventures: Led accounts for 31% and participating for 69% of round participation.All available history.
Define Ventures: Led accounts for 31% and participating for 69% of round participation. All available history
CategoryDeals (count)Share (%)
Led1731%
Participating3769%
Define Ventures: Single-lead accounts for 76% and co-led for 24% of lead dynamics.All available history.
Define Ventures: Single-lead accounts for 76% and co-led for 24% of lead dynamics. All available history
CategoryDeals (count)Share (%)
Single-lead1376%
Co-led424%

Team

Agneta Breitenstein

venture partner

Chirag Shah

Partner

Chuka Esiobu

Senior Associate and Investor

Garrett Howard

Senior Associate and Investor

Hong Truong

Principal

Karsten Vagner

Head of People

Lynne Chou O'Keefe

Founder and Managing Partner