Klaviyo Q1 Revenue Up 28% to $358M with $9M GAAP Profit
KVYO•Klaviyo posted Q1 revenue of $358 million, up 28% year-over-year, and GAAP net income of $9 million versus a $14 million loss a year earlier, boosting full-year revenue outlook to $1.514–$1.522 billion. It launched Custom Skills for Customer Agent and expanded its Anthropic integration across Claude.ai and Cowork.
1. Q1 Financial Results
Klaviyo delivered Q1 2026 revenue of $358 million, marking a 28% increase year-over-year. The company recorded GAAP net income of $9 million, reversing the $14 million net loss reported in Q1 2025, driven by stronger customer acquisition and subscription upgrades across its B2C platform.
2. Full-Year Revenue Guidance
Following its first-quarter performance, management raised the full-year revenue forecast to a range of $1.514 billion to $1.522 billion, up from the prior guidance midpoint. The adjustment reflects confidence in sustained adoption of its marketing automation and analytic tools.
3. Custom Skills for Customer Agent
The firm introduced Custom Skills for its Customer Agent product, enabling brands to build tailored AI-driven workflows for customer engagement and marketing campaigns. This feature allows users to create bespoke automations suited to their unique data and customer profiles.
4. Anthropic Integration Expansion
Klaviyo extended its Model Context Protocol to integrate with Anthropic's Claude.ai and Claude Cowork, enhancing agentic marketing capabilities. The partnership enables seamless deployment of AI-assisted marketing workflows within major conversational AI environments.
