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Companies / Technology / Klaviyo, Inc.
KVYO

Klaviyo, Inc.

TechnologyPrepackaged Software
Ticker KVYOBOSTON, MAFiscal year ends DecemberBook value per share $3.20Diluted shares 301.9M

Klaviyo, Inc. (NYSE: KVYO) operates as a business-to-consumer customer relationship management platform designed to help consumer companies create personalized, revenue-driving customer experiences. The company's website is www.klaviyo.com. From the company’s description.

Fiscal year 2025 · ends 12-31Changes are against fiscal 2024The amber dot is the latest twelve months, to 2026-06-30
Sales & profitability
$1.23B
+31.6% year over year
Last 12 mo $1.39B
-5.49%
+3.5 percentage points
Last 12 mo -1.86%
$-31.77M
+31.2% year over year
Last 12 mo $6.79M
-2.65%
+1.8 percentage points
Last 12 mo 0.70%
Cash & financing
$218.01M
+31.4% year over year
Last 12 mo $276.08M
$189.54M
+27.4% year over year
Last 12 mo $236.43M
—
290.9M
+9.2% year over year
Last 12 mo 301.9M

Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.

What Klaviyo, Inc. does

In the company’s own words

Klaviyo, Inc. (NYSE: KVYO) operates as a business-to-consumer customer relationship management platform designed to help consumer companies create personalized, revenue-driving customer experiences. The company's website is www.klaviyo.com.

The Klaviyo Data Platform serves as the core of the company's offering, unifying consumer profile data and event information into a single system of record. This infrastructure enables businesses to understand their customers and act on that understanding immediately through real-time data activation. The platform combines three integrated components: a data layer that aggregates and processes first-party consumer information, an intelligence layer applying machine learning and statistical techniques to generate predictions and recommendations, and an action layer providing tools for executing personalized engagement.

Klaviyo's capabilities span multiple channels and use cases. Marketing offerings include email, text messaging, WhatsApp, mobile push notifications, and social media integration. The company expanded into customer service through offerings including Customer Hub, Helpdesk, and AI-powered agents. Analytics capabilities provide predictive insights on customer lifetime value, churn risk, and behavior forecasting. In 2025, the company introduced Marketing Agent and Customer Agent, leveraging large language models and generative artificial intelligence to automate marketing strategy and customer support functions.

The platform serves over 193,000 customers across various verticals including retail and eCommerce, education, events and entertainment, restaurants, and travel. The company operates with a product-led growth model, attracting customers primarily through inbound channels including word-of-mouth, agency partnerships, and platform integrations. Klaviyo maintains strategic partnerships with major commerce platforms including Shopify, WooCommerce, and Salesforce Commerce Cloud, along with over 350 third-party integrations.

Revenue is generated through subscription plans tiered based on active consumer profiles and message volume across channels. The company's go-to-market strategy emphasizes rapid time-to-value and self-service accessibility, complemented by sales teams focused on mid-market and enterprise customers. Klaviyo operates globally with geographic coverage across the Americas, EMEA, and APAC regions.

Company details
Sector
Technology
Industry
Prepackaged Software
Headquarters
BOSTON, MA
Fiscal year end
December
CIK
1835830
SIC
7372

Financial performance, year by year

Fiscal 2023–2025 · USD
$-478.02M$31.34M$540.71M$1.05B$1.56B202320242025Last 12 moLast 12 monthsLast 12 months

The full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.

Ownership

Who owns Klaviyo, Inc. — and what changed

Funds as of 2026Q2 · superinvestors as of 2026-06-30

141
funds hold it
0 of 35
superinvestors hold it
$900.66M
held by funds, at market

Largest fund holders · Klaviyo, Inc.’s weight in each

0.50%of fund net assets
Select Software and IT Services Portfolio
FSCSX · Fidelity Select Portfolios
1.26%of fund net assets
0.02%of fund net assets
VANGUARD TOTAL STOCK MARKET INDEX FUND
VTI · VANGUARD INDEX FUNDS
0.00%of fund net assets
Growth Fund
AMERICAN FUNDS INSURANCE SERIES
0.10%of fund net assets

Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.

Could not be determined for this company: bond issues.

Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.

Connected research

Put this business in context.

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