DFX Intelligence

Brook H. Byers

Managing Memberat Kleiner Perkins· CA

As of 2026-09-23 · this person's identity; each section below carries its own date

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

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As of 2026-09-23 · this person's identity; each section below carries its own date

2 additional roles and seats, 2 additional attributed investments

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

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

Nothing material in the last 365 days. Last change: 13 Sep 2017, Latest Octave Bioscience Form D equity offering ($2.5M) on 13 Sep 2017.

Relationship network

10 connected entities5 observed investment records4 dated investment records shown here, 2015 to 2017

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

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.

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Which companies and boards is Brook H. Byers connected to?

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Name your firm, a company or a person, and DFX finds the published routes to Brook H. Byers: 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 Brook H. Byers

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

Drawing the relationship network…

Roles

2 current, 0 past

Kpcb China Managing Member
Feb 1, 2004 to present · “Schedule A: BYERS, BROOK, H., MANAGING MEMBER, since 02/2004, ownership F, control person Y”
Fact Form ADV
Kleiner Perkins Managing Member
Feb 1, 2004 to present · “Schedule A: BYERS, BROOK, H., MANAGING MEMBER, since 02/2004, ownership B, control person Y”
Fact Form ADV

Investments attributed to this person

Company	Round	Investor	Attribution	Date	Source
Octave Bioscience Inc	Form D equity offering · $2.5M	Kleiner Perkins	strongly supported · board	Sep 13, 2017	Inference sec.gov
Cell Design Labs, Inc.	Form D equity offering · $22.9M	Kleiner Perkins	strongly supported · board	Jun 17, 2016	Inference sec.gov
Cell Design Labs, Inc.	Form D equity offering · $4.0M	Kleiner Perkins	strongly supported · board	Jun 17, 2016	Inference sec.gov

Board seats and vehicles

4 boards, 4 vehicles

Octave Bioscience Inc board seat on a deal Sep 13, 2017 Inference
Cell Design Labs, Inc. board seat on a deal Jun 17, 2016 Inference
Zephyr Health, Inc. board seat on a deal Aug 10, 2015 Inference
Kpcb Sfund, LLC Executive Officer Oct 21, 2010
Kpcb Digital Growth Fund, LLC Executive Officer Nov 16, 2010
Kleiner Perkins Caufield & Byers Xiv, LLC Executive Officer Nov 16, 2010

Timeline

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

Sep 13, 2017
Form D equity offering in Octave Bioscience Inc (Kleiner Perkins)
Attributed investment Inference Octave Bioscience Inc Form D
Jun 17, 2016
Form D equity offering in Cell Design Labs, Inc. (Kleiner Perkins)
Attributed investment Inference Cell Design Labs, Inc. Form D
Feb 1, 2004
Joined Kpcb China as Managing Member
Role began Fact Kpcb China Form ADV
Feb 1, 2004
Joined Kleiner Perkins as Managing Member
Role began Fact Kleiner Perkins Form ADV