What does Klaviyo do?

Klaviyo sells a B2C CRM and marketing automation platform that consumer brands use to manage customer data and run email, SMS, and push campaigns. It combines a customer data platform with messaging tools.

Is Klaviyo publicly traded?

Yes. Klaviyo trades on the NYSE under ticker KVYO. It went public in September 2023 at $30 per share.

Who founded Klaviyo?

Andrew Bialecki and Ed Hallen founded Klaviyo in Boston in 2012. Bialecki remains CEO and the largest individual shareholder.

Where is Klaviyo headquartered?

Klaviyo is headquartered in Boston, Massachusetts. It has added international hubs in Dublin and Singapore to support global expansion.

What is Klaviyo's revenue?

Klaviyo reported $1.23 billion in revenue for fiscal 2025, up 32 percent year over year. Trailing twelve month revenue through Q3 2026 reached approximately $1.47 billion.

Who owns Klaviyo?

Klaviyo's public shareholders own the company. Co-founder and CEO Andrew Bialecki is the largest individual holder, with institutional investors making up most of the remaining register.

Andrew Bialecki and Ed Hallen founded Klaviyo in Boston in 2012. The two had worked at Applied Predictive Technologies and saw that consumer brands sat on rich purchase and behavior data but lacked tools to act on it. They built a database first, then an email engine on top of it.

The company grew slowly and deliberately through its first five years, bootstrapped for most of that period. Its breakthrough came with the Shopify ecosystem: as direct to consumer brands exploded in the mid 2010s, Klaviyo's deep Shopify integration made it the default email platform for that generation of merchants. Revenue compounded at high double digit rates.

Klaviyo raised $320 million in 2021 at a valuation above $9 billion, then went public on the NYSE in September 2023. The IPO priced at $30 per share and was one of the first significant tech listings after a long market drought, watched as a bellwether for the sector.

Post IPO performance has been consistent. Revenue grew 34 percent in 2024 to $937.5 million and another 32 percent in 2025 to $1.23 billion. International revenue grew 42 percent in 2025 on the back of new regional hubs in Dublin and Singapore. The company expanded from email and SMS into a full B2C CRM, adding reviews, a CDP, and AI features while moving upmarket: customers generating more than $1 million in ARR doubled in 2025.

Klaviyo has faced no material regulatory actions. Like all email platforms it operates under spam and deliverability rules, and it periodically draws pricing complaints when customers' profile counts scale their bills. No litigation or regulatory finding of significance is on record.