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Andrew Bialecki
Andrew Bialecki is the co-founder and CEO of Klaviyo (NYSE: KVYO), the only CRM built for consumer brands. Since founding the company in 2012, he has guided Klaviyo's growth from a startup to a publicly traded, category-defining platform that integrates marketing, customer service, analytics, and data to help businesses personalize at scale and achieve smarter, faster growth. Growing up in a family of small business owners, Andrew developed a deep passion for entrepreneurship from an early age. Prior to founding Klaviyo, he served as Chief Technology Officer at RockTech, a sales and marketing software company, and held roles at Performable and Applied Predictive Technologies. Andrew earned a Bachelor of Arts in Physics, Astronomy, and Astrophysics from Harvard University.

Posts by this author

Andrew Bialecki
Jun 11, 2025
Welcoming Klaviyo’s new Chief Information Officer

Klaviyo welcomes Archana Rao as the new Chief Information Officer to drive scalable systems and AI innovation, bringing decades of experience from Unity, Atlassian and Cisco.

Andrew Bialecki
Feb 19, 2025
Introducing the only CRM built for B2C

Today, we are launching several new features and tools that make us the only CRM built for B2C.

Andrew Bialecki
Nov 6, 2024
Welcoming Adil Wali as Chief Product Officer

Klaviyo welcomes Adil Wali as our new Chief Product Officer. Discover how Adil Wali’s expertise will shape Klaviyo’s future.

Andrew Bialecki
Sep 30, 2024
Surabhi Gupta, Klaviyo's new CTO

Klaviyo is announcing Surabhi Gupta as our new Chief Technology Officer. Surabhi joins us at a pivotal moment as we expand internationally and roll out a growing suite of AI-powered products.

Andrew Bialecki
May 21, 2024
What’s New in Klaviyo: Spring 2024 product updates

Discover new Klaviyo product launches including a new integration with TikTok, the launch of portfolio, SMS smart opt-in, and so much more.

Andrew Bialecki
May 15, 2024
How we think about the value of customer relationships

At Klaviyo, we believe in the value of knowing your customers, and using what you know to wow them. Learn how we are helping businesses make the shift to build more impactful relationships.

Andrew Bialecki
Aug 8, 2022
Klaviyo security incident

We want to be as transparent as possible, share what we know and what we are doing to respond to the event.

Andrew Bialecki
Aug 2, 2022
Klaviyo and Shopify establish strategic partnership

Klaviyo is excited to announce our strategic partnership with Shopify that will bring enhanced features and functionality to mutual customers.