Andrew Bialecki - Co-Chief Executive Officer @ Klaviyo

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Number of Portfolio Companies

Number of Exits

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Primary Job Title Co-Chief Executive Officer
Primary Organization
Klaviyo

Location Boston, Massachusetts, United States
Regions Greater Boston Area, East Coast, New England
Gender Male

Investor Type
obfuscated
obfuscation
Number of Exits
obfuscated
obfuscation

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Andrew Bialecki is based out of Boston, Massachusetts, and is the Co-Founder, Co-Chief Executive Officer, and Chairperson of the Board of Klaviyo. Andrew previously worked at RockTech as a CTO. Andrew Bialecki attended Harvard University.

Personal Investments

Number of Investments

Andrew Bialecki

has made

investments. Their latest investment was

Pre Seed Round - Copley

obfuscation

, when

Copley

raised

obfuscation

Announced Date	Organization Name	Lead Investor	Funding Round	Money Raised
obfuscated obfuscation	Copley	—	Pre Seed Round - Copley	obfuscated obfuscation
obfuscated obfuscation	PostPilot	—	Series A - PostPilot	obfuscated obfuscation
obfuscated obfuscation	Manifold	—	Series A - Manifold	obfuscated obfuscation
obfuscated obfuscation	Swapt	—	Pre Seed Round - Swapt	obfuscated obfuscation
obfuscated obfuscation	Wonderment	—	Seed Round - Wonderment	obfuscated obfuscation
obfuscated obfuscation	Rally	—	Seed Round - Rally	obfuscated obfuscation
obfuscated obfuscation	Unstack	—	Series A - Unstack	obfuscated obfuscation
obfuscated obfuscation	Nacelle	—	Seed Round - Nacelle	obfuscated obfuscation
obfuscated obfuscation	Postscript	—	Seed Round - Postscript	obfuscated obfuscation

Exits

Number of Exits

Unlock for free

Andrew Bialecki

has

obfuscation

exit -

Wonderment

Andrew Bialecki

has

obfuscation

exits. Their most notable exits are

Wonderment

and

Unstack

Wonderment Wonderment provides order tracking solutions that include notification updates, shipment reporting and analytics for Shopify & plus stores.
Unstack Unstack is a no-code marketing platform that allows marketers and entrepreneurs to build and expand their businesses.

Jobs

Number of Current Jobs

Number of Past Jobs

Andrew Bialecki

has

current jobs as

Co-Chief Executive Officer

Klaviyo

and

Co-Founder

Klaviyo

. Additionally,

Andrew Bialecki

has had

past jobs including

CEO

Klaviyo

Klaviyo Co-Chief Executive OfficerJan 2026
Klaviyo Co-FounderFeb 2012

Organization Name	Title At Company	Start Date	End Date
Klaviyo	CEO	Feb 2012	Dec 2025
RockTech	CTO	Apr 2011	Jan 2012

Board and Advisor Roles

Number of Current Board & Advisor Roles

Andrew Bialecki

is the

Chairperson of the Board

Klaviyo

Klaviyo Chairperson of the BoardSep 2012

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