DFX Intelligence

Lynne Chou O'Keefe

Founder & Managing Partnerat Define Ventures Management, LLC· CA

As of 2026-10-01 · this person's identity; each section below carries its own date

Current roles: 3
Investments attributed: 5
Board seats: 4

Ask DFX about this View relationships Find contacts Investments Board seats

As of 2026-10-01 · this person's identity; each section below carries its own date

3 additional roles and seats, 2 additional attributed investments, 2 verified contacts (2 professional url)

Every relationship, signal and contact on this record, with the source on each.

Includes 3 days of DFX Intelligence. Then $199/month unless canceled.

What matters now

1 deal
12 months
1 investment attributed in the last 12 months; latest 9amhealth round on 6 Apr 2026.
A partner with a recent deal is actively writing cheques now.
Factfunding announcements and Form D naming the personFor Founders, co-investorsInvestments →
4 boards
seats on record
Sits on 4 boards on record, the latest 9amhealth on 6 Apr 2026.
Board seats show where this partner holds governance, not only a cheque.
InferenceForm D directors and board-seat attributionsFor Founders, co-investorsBoard seats →

Relationship network

10 connected entities5 observed investment records4 dated investment records shown here, 2024 to 2026

From the roles sources name this person in, the investments a source attributes to them, and the boards and funds Form D names them on.

Some relationships on this record are counted rather than named here. They open with the full profile.

Click any name or line for the investment records and sources behind it. Line weight is investment records together; dashed lines are inferred.

Reading the network

Organization
Company
Fund or vehicle

›How strength and recency are read

Venture relationships are not scored. Each line names its claim: a round led or joined, a board seat or a filing that names the firm, a listing on a portfolio page (dated by when DFX saw it, never by when the investment was made), a disclosed LP commitment, or a co-investor pair counted from observed participations. Observed means a named source says so; Derived means DFX counted it from observed rows; Inferred means a match that may be wrong.

Darker lines were active in the last 24 months or are current; lighter lines are older or undated.

Ask DFX about this network

Which companies and boards is Lynne Chou O'Keefe connected to?

How am I connected?

Name your firm, a company or a person, and DFX finds the published routes to Lynne Chou O'Keefe: a shared portfolio company or board, a prior employer, a co-investor, a shared LP or service provider. Every step is a filed or published record with its source; none is a guess about who knows whom.

See how you connect to Lynne Chou O'Keefe

Includes 3 days of DFX Intelligence. Then $199/month unless canceled.

Drawing the relationship network…

Roles

2 current, 0 past

Define Ventures Management, LLC Managing Director
Sep 1, 2018 to present · “Schedule A: O'KEEFE, LYNNE, CHOU, MANAGING DIRECTOR, since 09/2018, ownership E, control person Y”
Fact Form ADV
Define Ventures Management, LLC Founder & Managing Partner
? to present · “team page: Lynne Chou O'Keefe / Founder & Managing Partner”
Fact Firm website

Investments attributed to this person

Company	Round	Investor	Attribution	Date	Source
9amhealth Inc.	board only	Define Ventures Management, LLC	strongly supported · board	Apr 6, 2026	Inference sec.gov
Waltz Health, Inc.	board only	Define Ventures Management, LLC	strongly supported · board	Nov 29, 2024	Inference sec.gov
Waltz Health, Inc.	Form D equity offering · $17.5M	Define Ventures Management, LLC	strongly supported · board	Nov 29, 2024	Inference sec.gov

Board seats and vehicles

4 boards, 5 vehicles

9amhealth Inc. Director Apr 6, 2026 Inference
Waltz Health, Inc. Director Nov 29, 2024 Inference
Soda Health, Inc. Director May 13, 2024 Inference
Define Ventures Fund I, L.P. Director Oct 29, 2018
Define Ventures Fund II, L.P. Director Oct 15, 2020
Define Ventures Opportunities I, L.P. Director Apr 27, 2021

Timeline

3 dated entries: events, attributed deals, board seats and role changes

Apr 6, 2026
Board seat at 9amhealth Inc. (Define Ventures Management, LLC)
Board seat Inference 9amhealth Inc. Form D
Nov 29, 2024
Board seat at Waltz Health, Inc. (Define Ventures Management, LLC)
Board seat Inference Waltz Health, Inc. Form D
Sep 1, 2018
Joined Define Ventures Management, LLC as Managing Director
Role began Fact Define Ventures Management, LLC Form ADV