8-K: Klaviyo Soars with 32% Revenue Growth, Raises 2026 Outlook

Klaviyo announced strong fourth quarter and full fiscal year 2025 financial results, including 32% annual revenue growth and a raised outlook for fiscal year 2026.

Summary

• Fourth quarter fiscal year 2025 revenue reached $350.2 million, marking a 30% year-over-year growth.
• Full fiscal year 2025 revenue totaled $1.2 billion, representing a 32% year-over-year increase.
• Non-GAAP operating income for fiscal year 2025 was $169.2 million, achieving a 14% margin.
• Free Cash Flow for fiscal year 2025 stood at $200.4 million, with a 16.2% margin.
• The customer base expanded to over 193,000 by the end of fiscal year 2025, up from over 167,000 at the end of fiscal year 2024.
• The number of customers generating over $1 million in Annual Recurring Revenue (ARR) doubled year over year.
• Customers generating over $50,000 in ARR grew 37% to 3,912, compared to 2,850 at the end of fiscal year 2024.
• Net Revenue Retention (NRR) was 110% as of December 31, 2025, an increase of two percentage points year over year.
• International revenue outside of the Americas grew 42% year over year in fiscal year 2025.
• Klaviyo raised its fiscal year 2026 revenue guidance to a range of $1,501 million to $1,509 million, implying 21.5% to 22.5% year-over-year growth.
• Fiscal year 2026 Non-GAAP operating income guidance was raised to a range of $218 million to $224 million, maintaining a 14.5% to 15.0% Non-GAAP operating margin.

Sentiment

Score: 8

Explanation: StockSavvy.ai views this as a very positive report, driven by strong revenue growth, expanding customer base, improved NRR, and an optimistic raised outlook for the upcoming fiscal year, despite GAAP losses.

Positives

• Strong revenue growth: 30% year-over-year in Q4 ($350.2 million) and 32% year-over-year for the full year 2025 ($1.2 billion).
• Significant customer base expansion: Over 193,000 customers, up from 167,000 in FY24.
• Accelerated growth in high-value customers: The number of customers generating over $1 million ARR doubled year over year, and those over $50,000 ARR grew 37% to 3,912.
• Improved Net Revenue Retention (NRR): 110% as of December 31, 2025, a 2 percentage point increase year over year.
• Robust international expansion: 42% year-over-year revenue growth outside the Americas, supported by new regional hubs in Dublin and Singapore.
• Strong profitability on a non-GAAP basis: FY25 Non-GAAP operating income of $169.2 million (14% margin) and Q4 Non-GAAP operating income of $51.0 million (15% margin).
• Healthy cash flow generation: FY25 Free Cash Flow of $200.4 million (16.2% margin) and Q4 Free Cash Flow of $87.4 million (25.0% margin).
• Raised fiscal year 2026 outlook for both revenue and non-GAAP operating income, indicating increased confidence in future performance.
• Expanded integrations into major AI platforms, including the launch of the Klaviyo App in ChatGPT, enhancing marketer capabilities.
• Closed new and expanded existing customer accounts with major brands such as Bayer, KIKO Milano, Nine West, and TaylorMade.

Negatives

• GAAP operating loss for fiscal year 2025 was $(67.8) million, and for Q4 FY25 was $(1.8) million.
• GAAP net loss for fiscal year 2025 was $(31.768) million; Q4 FY25 GAAP net income was $7.028 million, but diluted EPS remained low at $0.02.
• GAAP gross margin slightly decreased from 76.4% in FY24 to 74.7% in FY25.

Risks

• Ability to achieve future growth and sustain the current growth rate.
• Ability to successfully execute business and growth strategy, including the success of investments in key growth initiatives.
• Ability to successfully integrate with third-party platforms.
• Reliance on relationships with third parties, such as marketing agency and technology partners.
• Exposure to unfavorable conditions in the industry.
• Ability to attract new customers, including mid-market and enterprise customers, retain revenue from existing customers, and increase sales from both new and existing customers.
• Ability to effectively leverage artificial intelligence and machine learning in products.
• Ability to sustain strong international growth.
• Success of marketing and sales strategies.
• Costs and expenses associated with being a public company.
• Impact of macroeconomic factors, including tariffs.
• Operating in a very competitive and rapidly changing environment, with new risks potentially emerging.

Future Outlook

Klaviyo projects Q1 FY26 revenue between $346 million and $350 million, representing 23.5% to 25.0% year-over-year growth, with Non-GAAP operating income between $50 million and $53 million. For the full fiscal year 2026, revenue is expected to be between $1,501 million and $1,509 million, indicating 21.5% to 22.5% year-over-year growth, and Non-GAAP operating income is guided to be between $218 million and $224 million, maintaining a 14.5% to 15.0% Non-GAAP operating margin.

Management Comments

• "2025 was a breakout year for Klaviyo. More businesses are relying on us as the actionable infrastructure for understanding their consumers and delivering exceptional customer experiences." Andrew Bialecki, co-founder and co-CEO.
• "The future of consumer engagement is autonomous, and brands are choosing Klaviyo because real-time data, personalization and automation together deliver faster execution, higher-quality experiences, and clear economic upside." Andrew Bialecki.
• "Our results reflect strong execution and growing demand, with 32% annual revenue growth, expanding operating margins, and strong cash flow." Amanda Whalen, CFO.
• "The shift toward autonomous customer experiences is reinforcing the durability of our model and accelerating our growth across multi-product adoption, enterprise wins, international expansion, and increased AI adoption, giving us confidence in our path to continued growth in 2026." Amanda Whalen.

Industry Context

StockSavvy.ai notes that Klaviyo's strong performance, particularly its 32% revenue growth and expansion into AI platforms like ChatGPT, positions it favorably within the rapidly evolving B2C CRM and marketing automation sector. The emphasis on real-time data, personalization, and automation aligns with broader industry trends towards more intelligent and autonomous customer engagement solutions, crucial for brands navigating competitive digital landscapes. The growth in enterprise and international markets suggests successful execution in key strategic areas, potentially outpacing some competitors focused solely on SMBs.

Comparison to Industry Standards

• Klaviyo's 32% year-over-year revenue growth for FY25 is robust, especially for a company with $1.2 billion in annual revenue, indicating strong market penetration and demand in the B2C CRM space. This growth rate compares favorably to many established SaaS companies, which often see growth rates decelerate as they scale.
• The Net Revenue Retention (NRR) of 110% is a solid indicator of customer satisfaction and expansion, suggesting existing customers are increasing their spend with Klaviyo. This is a healthy metric for SaaS companies, often benchmarked against peers like Salesforce or HubSpot, where NRR typically ranges from 100-120% for successful platforms.
• The doubling of customers generating over $1 million in ARR and 37% growth in customers over $50,000 ARR demonstrates successful upmarket traction, a critical strategic move for SaaS providers to diversify revenue streams and increase average contract values, similar to strategies employed by enterprise software leaders.
• The 42% international revenue growth highlights successful global expansion, a key driver for long-term growth for companies like Adobe or Oracle, which leverage global markets to sustain high growth rates.

Stakeholder Impact

• Shareholders: Positive impact due to strong financial performance, robust growth metrics, and a raised future outlook, which could lead to increased share value.
• Customers: Enhanced value proposition through expanded AI integrations (e.g., ChatGPT app) and continued focus on real-time data, personalization, and automation, leading to better customer experiences and outcomes.
• Employees: Continued growth and international expansion (e.g., new regional hubs in Dublin and Singapore) suggest potential for job creation and career development opportunities.

Next Steps

• Klaviyo will host a conference call for investors at 4:30 p.m. ET (1:30 p.m. PT) on February 10, 2026, to discuss the results and outlook.
• Continued focus on multi-product adoption, enterprise wins, international expansion, and increased AI adoption in 2026 to sustain growth.

Key Dates

Recommendation

The strong revenue growth of 32% for the full year 2025, coupled with a raised outlook for fiscal year 2026, demonstrates robust business momentum and market demand for Klaviyo's B2C CRM solutions. The significant expansion in high-value customers (doubling of $1M ARR customers, 37% growth in $50K ARR customers) and an improved Net Revenue Retention of 110% indicate strong product-market fit and customer loyalty. Furthermore, healthy free cash flow generation and strategic investments in AI and international expansion position the company for sustained long-term growth. While GAAP losses persist, the strong non-GAAP profitability and positive cash flow suggest a healthy underlying business model. These factors collectively present a compelling investment case.

Keywords

Klaviyo, KVYO, B2C CRM, Marketing Automation, Customer Engagement, Financial Results, Earnings, Revenue Growth, AI Integration, SaaS, Cloud Software, E-commerce Marketing, Customer Data Platform, CRM, Fiscal Year 2025, 2026 Outlook