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A profile about the people, projects and experiences behind their work. Discover their career, contributions and connections.

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Company name

2022

Founder

Company name

2022

Founder

Profile name

A profile about the people, projects and experiences behind their work. Discover their career, contributions and connections.

CareerDetails being loaded

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Company name

2022

Founder

Company name

2022

Founder

Zach Davidson

Zach Davidson is building Cosign with the Ecosystem team of a16z New Media

Career

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Based in: Los Angeles
Elsewhere

Cosign

Until Present

Operations

Andreessen Horowitz (a16z)

Oct 2026 — Present

Ecosystem

HELIOTROPE ✴️

Jun 2020 — Aug 2026

Angel Investor

Advising & investing in Magical People

Presto

Sep 2022 — Dec 2025

Founder

Raised $3m for crypto <> AI products

RabbitHole

Oct 2021 — Jul 2022

Growth Lead

Ran community building / growth experiments + helped raise $18m Series A

Village Global

Jul 2020 — Sep 2021

Chief of Staff

Supported GP Erik Torenberg, our Accelerator and Fund of Funds, and our portfolio of 300+ companies

Worked withErik TorenbergBen CasnochaAnne DwaneIan CinnamonSam KirschnerAdam Corey

On Deck

Jul 2020 — Sep 2021

Advisor

Helped launch 20 fellowships & raise $20m Series A

Worked withErik TorenbergDavid Boothweisser

University of Southern California

B.S. Business Administration

Curated Lists

List Inclusions

Profile name

A profile about the people, projects and experiences behind their work. Discover their career, contributions and connections.

CareerDetails being loaded

Cosigned byDetails being loaded

CosignedDetails being loaded

Company name

2022

Founder

Company name

2022

Founder

Zach Davidson

Zach Davidson is building Cosign with the Ecosystem team of a16z New Media

Career

Cosigned byLoading...

CosignedSign in to view

Based in: Los Angeles
Elsewhere

Cosign

Until Present

Operations

Andreessen Horowitz (a16z)

Oct 2026 — Present

Ecosystem

HELIOTROPE ✴️

Jun 2020 — Aug 2026

Angel Investor

Advising & investing in Magical People

Presto

Sep 2022 — Dec 2025

Founder

Raised $3m for crypto <> AI products

RabbitHole

Oct 2021 — Jul 2022

Growth Lead

Ran community building / growth experiments + helped raise $18m Series A

Village Global

Jul 2020 — Sep 2021

Chief of Staff

Supported GP Erik Torenberg, our Accelerator and Fund of Funds, and our portfolio of 300+ companies

Worked withErik TorenbergBen CasnochaAnne DwaneIan CinnamonSam KirschnerAdam Corey

On Deck

Jul 2020 — Sep 2021

Advisor

Helped launch 20 fellowships & raise $20m Series A

Worked withErik TorenbergDavid Boothweisser

University of Southern California

B.S. Business Administration