What dominates the section
- Privacy, data-security, and cyber risks dominate, including unauthorized access to source code, credentials, and some customer contact information.
- Growth depends on retaining customers, expanding usage, competing with Adobe, Salesforce, Mailchimp, and Braze, and moving into enterprise accounts.
- Reliance on third-party infrastructure, partners, and integrations creates platform availability, implementation, and distribution risks.
- International expansion increases exposure to foreign-currency movements, privacy requirements, tax rules, and operational complexity.
The risks most specific to Klaviyo
- Risks Relating to Privacy, Data Security, and Data Protection Laws
address, and phone number, for a subset of our customers. Additionally, in October 2024, an unauthorized third-party gained access to company source code, as well as other system and application credentials
An October 2024 unauthorized-access incident involved company source code, system and application credentials, and contact information for some customers.
- Risks Relating to Privacy, Data Security, and Data Protection Laws
We collect, process, store, share, disclose, and use personal information and other data, which subjects us to legal obligations related to privacy and security, and our actual or perceived failure to comply with these obligations could harm our business
Handling personal information belonging to customers and their customers creates privacy-law obligations and consequences for noncompliance.
- Risks Relating to Privacy, Data Security, and Data Protection Laws
We are subject to stringent and changing laws and regulations related to privacy, data security, and data protection. The restrictions and costs imposed by these requirements, and our actual or perceived failure to comply with them, could harm our business
Changing privacy, data-security, and data-protection requirements could impose costly restrictions and require changes to Klaviyo’s platform and practices.
- Risks Relating to Our Business and Industry
We operate in a highly competitive industry, and if we do not compete effectively with established companies or new market entrants, our business, results of operations, and financial condition could be adversely affected
Klaviyo must compete with Adobe, Salesforce, Mailchimp, Braze, and other entrants on deployment, usability, time-to-value, and customer ROI.
- Risks Relating to Our Business and Industry
We may not be able to add new customers, retain existing customers, or increase sales to existing customers, which could adversely affect our business, results of operations, and financial condition
Revenue depends on acquiring customers, retaining mostly month-to-month subscribers, and expanding their platform usage and product purchases.
- Risks Relating to Our Business and Industry
As we seek to move up-market, we expect our sales cycle with enterprise customers to be longer than with small-and-mid size businesses and we will be required to scale our operations, including by expanding our sales efforts, which may require considerable time and expense
Moving from small and midsize businesses toward enterprise customers may require longer sales cycles, expanded sales operations, and substantial spending.
- Risks Relating to Our Business and Industry
We rely upon a third-party provider of cloud-based infrastructure to host and sell our products. Any disruption in the operations of this provider or limitations on capacity or interference with our use could adversely affect our business, financial condition, and results of operations
A third-party cloud infrastructure provider hosts substantially all of Klaviyo’s platform, creating availability, capacity, and access risks.
- Risks Relating to Our Business and Industry
We rely heavily on the reliability, security, and performance of our software. If our software contains serious errors or defects, or we have difficulty maintaining our software, we may lose revenue and market acceptance and may incur costs to defend or settle claims with our customers
Software defects, bugs, vulnerabilities, or maintenance problems could interrupt the platform, reduce market acceptance, and trigger customer claims.
- Risks Relating to Our Business and Industry
Our business and success depend, in part, on the success of our relationships with third parties, such as our marketing agency and technology partners
Marketing agencies and technology partners help attract customers and enhance the platform, so failures, breaches, disputes, or terminations could hurt demand.
- Risks Relating to Our Business and Industry
Doing business internationally exposes us to significant risks, and our future success depends in part on our ability to navigate the international business environment and drive the adoption of our products by international customers
International expansion exposes Klaviyo to operational challenges and the difficulty of driving adoption among customers outside the United States.
All 60 risk factors
Headings as the filing states them, in filing order.
Risks Relating to Our Business and Industry
- 01Our rapid historical revenue growth is not indicative of our future revenue growth, and we may not be able to sustain our historical revenue growth rate, in the near term and in the future
- 02Our business has experienced rapid growth, and if we fail to effectively manage our growth or anticipated growth, our business, results of operations, and financial condition could be adversely affected
- 03We have a limited operating history in a rapidly changing industry, which makes it difficult to evaluate our current business and future prospects and increases the risk of your investment
- 04We operate in a highly competitive industry, and if we do not compete effectively with established companies or new market entrants, our business, results of operations, and financial condition could be adversely affected
- 05Our business and success depend, in part, on the success of our relationships with third parties, such as our marketing agency and technology partners
- 06improve their integrations, which could reduce the utility of our platform and in turn could decrease demand for our platform and products, harm our reputation and brand, and have a negative effect on our business, financial condition, and operating results
- 07Unfavorable conditions in our industry or the global economy, or reductions in spending on marketing, could adversely affect our business, financial condition, and results of operations
- 08We may not be able to add new customers, retain existing customers, or increase sales to existing customers, which could adversely affect our business, results of operations, and financial condition
- 09We have a history of net losses, we anticipate increasing operating expenses in the future, and we may not be able to achieve and maintain profitability in the future
- 10As we seek to move up-market, we expect our sales cycle with enterprise customers to be longer than with small-and-mid size businesses and we will be required to scale our operations, including by expanding our sales efforts, which may require considerable time and expense
- 11If we fail to adapt and respond effectively to technological changes, evolving industry standards, changing regulations or changing customer or consumer needs, requirements or preferences, our platform may become less competitive
- 12We depend on our senior management team, and the loss of one or more members of our senior management team or our key employees, or an inability to attract and retain highly skilled employees, could adversely affect our business
- 13If we fail to maintain and enhance our brand, our ability to maintain or expand our customer base may be impaired and our business, financial condition, and results of operations could be adversely affected
- 14Doing business internationally exposes us to significant risks, and our future success depends in part on our ability to navigate the international business environment and drive the adoption of our products by international customers
- 15Our business and reputation could be adversely affected if our customers are not satisfied with the integration or implementation of our platform and products provided by us or our partners
- 16Any one or more of the factors above may result in significant fluctuations in our quarterly results of operations
- 17We rely upon a third-party provider of cloud-based infrastructure to host and sell our products. Any disruption in the operations of this provider or limitations on capacity or interference with our use could adversely affect our business, financial condition, and results of operations
- 18We rely heavily on the reliability, security, and performance of our software. If our software contains serious errors or defects, or we have difficulty maintaining our software, we may lose revenue and market acceptance and may incur costs to defend or settle claims with our customers
- 19Any failure to offer high-quality technical support services may harm our relationships with our customers, our brand, and our results of operations
- 20If we are unable to maintain our culture and core values as we grow, we could lose the innovation, teamwork, passion, and focus on execution that we believe contribute to our success, and our business may be harmed
- 21Our inability to streamline operations and improve cost efficiencies could result in the contraction of our business and the implementation of additional significant cost cutting measures, including restructuring and reorganization activities which may be disruptive to our operations
- 22Changes in financial accounting standards or practices may cause adverse, unexpected financial reporting fluctuations and affect our results of operations
- 23If our judgments or estimates relating to our critical accounting estimates are based on assumptions that change or prove to be incorrect, our results of operations could fall below expectations of securities analysts and investors, resulting in a decline of the trading price of our Series A common stock
- 24We track certain operational metrics, which are subject to inherent challenges in measurement, and real or perceived inaccuracies in such metrics may harm our reputation and materially adversely affect our stock price, business, results of operations, and financial condition
- 25If we fail to maintain an effective system of disclosure controls and internal control over financial reporting, our ability to produce timely and accurate financial statements or comply with applicable regulations could be impaired
- 26We face exposure to foreign currency exchange rate fluctuations, and such fluctuations could adversely affect our business, results of operations, and financial condition
- 27Changes in tax law could adversely affect our business, financial condition, and results of operations
- 28Additionally, new, changed, modified, or newly interpreted or applied tax laws could increase our customers’ and our compliance, operating, and other costs, as well as the costs of our products. In recent years, many such changes have been made, and changes are likely to continue to occur in the future
- 29Our international operations and structure subject us to potentially adverse tax consequences
- 30Our ability to use net operating loss carryforwards to offset future taxable income for U.S. federal tax purposes is subject to limitation and risk that could further limit our ability to utilize our net operating losses
- 31We may require additional capital to support the growth of our business, and this capital might not be available on acceptable terms, if at all
- 32Partnerships, strategic investments, alliances or acquisitions could be difficult to identify, pose integration challenges, divert the attention of management, disrupt our business, dilute stockholder value, and adversely affect our business, financial condition, and results of operations
- 33Any future litigation against us could be costly and time-consuming to defend
- 34We agree to indemnify customers and other third parties pursuant to various contractual arrangements we enter into in the course of business, which exposes us to substantial potential liability
- 35We are subject to anti-corruption, anti-bribery, and similar laws, and non-compliance with these laws can subject us to criminal penalties or significant fines and adversely affect our business and reputation
- 36(“COVID-19”) had a significant impact, both directly and indirectly, on businesses and commerce. Future global health concerns could also result in social, political, economic, and labor instability in the countries in which we or the third parties with whom we engage operate
Risks Relating to Privacy, Data Security, and Data Protection Laws
- 37We collect, process, store, share, disclose, and use personal information and other data, which subjects us to legal obligations related to privacy and security, and our actual or perceived failure to comply with these obligations could harm our business
- 38address, and phone number, for a subset of our customers. Additionally, in October 2024, an unauthorized third-party gained access to company source code, as well as other system and application credentials
- 39We are subject to stringent and changing laws and regulations related to privacy, data security, and data protection. The restrictions and costs imposed by these requirements, and our actual or perceived failure to comply with them, could harm our business
- 40require additional investment of resources in compliance programs, impact strategies, and the availability of previously useful data and could result in increased compliance costs and/or changes in business practices and policies
- 41modify our data processing practices and policies, utilize management’s time and/or divert resources from other initiatives and projects
- 42Our business offerings rely heavily on a variety of direct marketing techniques, including email marketing and marketing conducted via SMS. These activities are regulated by legislation such as CAN-SPAM and the TCPA as well as state laws regulating marketing via telecommunication services
- 43If our platform fails to function in a manner that allows our customers to operate in compliance with regulations and/or industry standards, our business, financial condition, and results of operations could be adversely affected
- 44We could face liability, or our reputation might be harmed, as a result of the activities of our customers, the content sent through our platform or the data they store on our servers
- 45The standards that private entities and inbox service providers use to regulate and filter the use and delivery of email may interfere with the effectiveness of our platform and our ability to conduct business
Risks Relating to Our Intellectual Property
- 46Any failure to protect our proprietary technology and intellectual property rights could substantially harm our business, financial condition, and results of operations
- 47In the future we may be party to intellectual property rights claims, disputes, and other litigation brought by others which are expensive to support, and if resolved adversely, could have a significant impact on us
- 48Our use of open source software could negatively affect our ability to sell our products and subject us to possible litigation
- 49Our use of AI technology and the integration of AI technology with our products and services may subject us to increased risk, including security and other risks to our confidential and/or proprietary information, given the emerging nature of AI technology
Risks Relating to Ownership of Our Series A Common Stock
- 50We cannot predict the effect our dual series structure may have on the trading price of our Series A common stock
- 51If securities or industry analysts do not publish research, or publish inaccurate or unfavorable research, about our business, the trading price of our Series A common stock and trading volume could be adversely affected
- 52Sales of substantial amounts of our Series A common stock in the public markets, or the perception that sales might occur, could cause the trading price of our Series A common stock to decline
- 53Our issuance of additional capital stock in connection with financings, acquisitions, investments, our stock incentive plans, or otherwise will dilute all other stockholders and could negatively affect our results of operations
- 54We do not intend to pay dividends on our Series A common stock in the foreseeable future and, consequently, the ability of Series A common stockholders to achieve a return on investment will depend on appreciation in the trading price of our Series A common stock
- 55Our estimates of market opportunity and forecasts of market growth may prove to be inaccurate. Even if the markets in which we compete achieve the forecasted growth, our business could fail to grow at similar rates, if at all
- 56Provisions in our charter documents and under Delaware law could make an acquisition of our company more difficult, limit attempts by our stockholders to replace or remove our current board of directors, and limit the trading price of our Series A common stock
- 57Our amended and restated bylaws designate specific courts as the exclusive forum for certain litigation that may be initiated by our stockholders, which could potentially limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us
- 58We have incurred, and we will continue to incur, increased costs as a result of operating as a public company, and our management is required to devote substantial time to support compliance with our public company responsibilities and corporate governance practices
- 59Our business is subject to the risks of earthquakes, fire, floods, and other natural catastrophic events, and to interruption by man-made problems such as power disruptions, computer viruses, data security breaches, or terrorism
- 60Climate change may have a long-term impact on our business
Other Klaviyo 10-Ks
- 2026 10-K risk factors
60 risks. Klaviyo faces intense competition from established software vendors like Adobe, Salesforce, and Mailchimp in a rapidly evolving market. The company relies heavily on third-party cloud infrastructure and partner ecosystems to drive customer acquisition and retention. Data privacy regulations and security obligations significantly impact the platform's ability to process and store customer information.
Filed Feb 10, 2026
About this page
Item 1A of the 10-K on EDGAR was split into its risk factors and, where the company's previous 10-K is on file, each heading was matched to last year's and the text compared word for word. The headings are the filing's own. The one-line readings and the overview were written by a language model from the text of the new, dropped, and rewritten risks; they refer to risks by position and cannot misquote a heading.