Revenue and Growth - Q3 2024 revenue reached 235.1million,representinga34923.0 million to 925.0million,representing32235,094 thousand, compared to 175,807thousandinthesameperiodin2023[30]−RevenuefortheninemonthsendedSeptember30,2024,was667,300 thousand, compared to 496,481thousandinthesameperiodin2023[31]ProfitabilityandMargins−GrossprofitforQ32024was180.7 million with a gross margin of 77%, up from 67% in Q3 2023[7] - Non-GAAP operating income for Q3 2024 was 33.7million,withanon−GAAPoperatingmarginof14525,367 from 388,158in2023,reflectingimprovedprofitability[39]−Non−GAAPoperatingincomefortheninemonthsended2024reached97,376, up from 61,901in2023,showingbetteroperationalefficiency[40]−Non−GAAPnetincomefortheninemonthsended2024was127,631, compared to 74,255in2023,indicatingstrongeroverallfinancialperformance[41]−Non−GAAPgrossmarginfortheninemonthsended2024improvedto78.70.43, up from 0.27in2023,reflectinghigherearningspershare[41]CashFlowandLiquidity−FreecashflowforQ32024was34.2 million, representing a free cash flow margin of 15%[12] - Net cash provided by operating activities for the three months ended September 30, 2024, was 38,784thousand,comparedto23,700 thousand in the same period in 2023[32] - Cash, cash equivalents, and restricted cash increased from 794,629thousandatthebeginningoftheperiodto827,898 thousand at the end of September 2024[32] - Net cash provided by operating activities increased to 105,866in2024from80,727 in 2023, indicating stronger cash flow generation[33] - Free cash flow for the three months ended 2024 was 34,246,upfrom21,870 in 2023, demonstrating improved cash management[38] - Cash provided by operating activities grew to 105,866intheninemonthsendedSeptember30,2024,upfrom80,727 in the same period in 2023[43] - Free Cash Flow increased to 94,268intheninemonthsendedSeptember30,2024,comparedto75,292 in the same period in 2023[43] - Operating Cash Flow Margin slightly decreased to 15.9% in the nine months ended September 30, 2024, from 16.3% in the same period in 2023[43] - Free Cash Flow Margin decreased to 14.1% in the nine months ended September 30, 2024, from 15.2% in the same period in 2023[43] Customer Metrics - Total customers grew to over 157,000 as of September 30, 2024, up from over 135,000 in the same period last year[4] - Customers generating over 50,000inARRincreasedby54100,690, down from 302,317in2023,reflectingreducedequity−basedcosts[33]−Non−GAAPSellingandMarketingexpensesdecreasedto214,880 in the nine months ended September 30, 2024, compared to 151,715inthesameperiodin2023[42]−Non−GAAPResearchandDevelopmentexpensesincreasedto127,279 in the nine months ended September 30, 2024, from 98,925inthesameperiodin2023[42]−Non−GAAPGeneralandAdministrativeexpensesroseto85,832 in the nine months ended September 30, 2024, compared to 75,617inthesameperiodin2023[42]−TotalNon−GAAPOperatingExpensesincreasedto427,991 in the nine months ended September 30, 2024, from 326,257inthesameperiodin2023[42]NetLossandFinancialPosition−NetlossforthethreemonthsendedSeptember30,2024,was(1,345) thousand, compared to (297,104)thousandinthesameperiodin2023[30]−NetlossfortheninemonthsendedSeptember30,2024,was(19,169) thousand, compared to (281,938)thousandinthesameperiodin2023[31]−Netlossfortheninemonthsended2024improvedto(19,169) from (281,938)in2023,showingsignificantreductioninlosses[33]−Klaviyo′stotalassetsincreasedfrom1,089,050 thousand in December 2023 to $1,193,199 thousand in September 2024[29]