Klaviyo, Inc. Class A had a revenue of 358.00M in the quarter ending Mar 31, 2026, with 2.23%. This bring the company's revenue in the last twelve months to 1.31B, Decreased 6.34%. In the fiscal year ending Dec 31, 2025, Klaviyo, Inc. Class A had annual revenue of 1.23B with 31.63% growth.