Klaviyo Earnings Call: Strong Growth, Rising Margins

Klaviyo, Inc. Class A ((KVYO)) has held its Q1 earnings call. Read on for the main highlights of the call.

Klaviyo’s latest earnings call struck a decidedly upbeat tone as management highlighted robust top-line growth, record margins, and rising enterprise and international traction. Executives balanced this optimism with a candid discussion of emerging risks, including higher carrier fees, a CFO transition, and the early-stage nature of AI monetization, but framed these as manageable against strong execution.

Revenue Growth and Beat-and-Raise

Klaviyo posted Q1 revenue of $358 million, up 28% year over year and roughly $10 million ahead of expectations, underscoring durable demand for its marketing automation platform. Management responded by raising full-year 2026 revenue guidance by $13 million at the midpoint to a range of $1.514 billion to $1.522 billion, implying about 23% growth.

Margin Expansion and Profitability

Profitability took a clear step forward, with non-GAAP operating income reaching $59 million and a 16% non-GAAP operating margin, nearly 500 basis points higher than a year ago and the strongest since the IPO. The quarter also marked Klaviyo’s first positive GAAP operating margin as a public company, signaling improving operating leverage even amid ongoing investment.

Enterprise Momentum and Large Deals

The company is gaining momentum upmarket, with customers generating more than $50,000 in annual recurring revenue rising 38% year over year to 4,175. Management highlighted closing the highest number of multi-million-dollar ARR deals in its history and expanding one customer above $6 million in ARR, reflecting growing relevance with larger enterprises.

International Acceleration

International markets are becoming a more powerful growth driver, with revenue outside the Americas up 39% year over year in Q1. EMEA excluding the U.K. grew an even faster 51%, and five of the ten largest new customers came from EMEA, underscoring deepening penetration beyond the company’s home region.

AI, Agents and Product Momentum

Klaviyo’s AI strategy showed tangible traction as it launched a private preview of Composer and reported broader agent and model usage across its base, with nearly two-thirds of customers tapping AI-driven features. Early case studies included a leading apparel brand lifting top-performing flow revenue by over 40% and Naked Wardrobe resolving 84% of conversations with Customer Agent while boosting average order value by 28%.

Platform Usage and Data Scale

The scale of Klaviyo’s data platform continues to expand, now ingesting almost 4 billion events per day across 8 billion consumer profiles and serving more than 196,000 brands. Event volume from marketplace apps climbed 44% year over year, while MCP usage rose more than 10% week over week in Q1, with top MCP users showing roughly 16% higher overall platform usage.

Efficiency and Productivity Gains

Operational efficiency metrics improved sharply, with annualized revenue per employee exceeding $600,000, up more than 25% from a year ago, showing better productivity as the company scales. Non-GAAP operating expenses fell to 59% of revenue, down 560 basis points year over year, while the team shipped over 75 features and nearly doubled code delivery per engineer versus last year.

Cash Generation and Capital Return

Klaviyo remains a solid cash generator, with trailing twelve-month free cash flow margin at 16% despite Q1 free cash flow of $19 million, or a seasonal 5% margin. Reflecting confidence in its outlook and balance sheet, the Board approved a $500 million share repurchase plan, and the company has already executed a $100 million accelerated buyback.

Rising Carrier Fees and Margin Uncertainty

Management flagged rising text messaging carrier fees as a key industry-wide headwind and noted that Klaviyo has so far absorbed most of those increases to provide predictable pricing and maintain a competitive edge. While this approach offers customers stability and may attract share, it introduces potential margin pressure and future uncertainty if fees continue climbing or must be partially passed through.

Leadership Transition and CFO Departure

The company announced that CFO Amanda Whalen will step down from her role, remaining through a transition period into 2026 and later as an advisor, while a successor is sought. Management emphasized structured handover plans to maintain continuity, but investors will likely monitor the search closely, as executive changes can pose execution and communication risks during a high-growth phase.

Early-Stage AI Monetization Risk

While the initial results from Composer and Customer Agent are promising, management underscored that these AI offerings are still in private preview or early rollout stages. Pricing strategies, broader customer adoption, and enterprise-scale monetization are not yet fully proven, creating timing and execution risk around how quickly agent-driven capabilities translate into meaningful revenue.

Seasonality, Cash Timing and NRR Plateau

Q1 free cash flow was modest due to normal seasonality and bonus timing, and executives reminded investors that quarterly cash generation can be uneven even with strong trailing margins. Net revenue retention stood at 110%, up two points year over year but flat sequentially, suggesting healthy expansion across customers but no recent acceleration in that metric.

Competitive and Pricing Dynamics

Competitive pressures are emerging around how platforms handle carrier fee inflation, with some rivals already passing costs through to customers. Klaviyo’s decision to absorb most of these fees currently offers a pricing advantage but could narrow flexibility later, forcing the company to balance customer satisfaction, market share, and long-term profitability.

Guidance and Forward-Looking Outlook

Management raised full-year 2026 revenue guidance to $1.514 billion to $1.522 billion, pointing to roughly 23% growth, and lifted non-GAAP operating income expectations to $222 million to $228 million, or about a 14.5% to 15% margin. For Q2, the company projected revenue of $359 million to $363 million and non-GAAP operating income of $47.5 million to $50.5 million, expecting a similar revenue step-up from Q3 to Q4 as last year and higher margins in Q4 even while continuing to absorb most carrier fee increases.

Klaviyo’s earnings call painted the picture of a software company hitting its stride, combining strong growth with rising profitability and clear product momentum, especially in AI. While investors must weigh carrier fee headwinds, leadership changes, and early-stage AI monetization, the raised guidance, international and enterprise gains, and shareholder returns point to a business executing well against its long-term ambitions.