Customer.io vs Klaviyo

Customer.io has recently focused on strengthening its position as a messaging automation platform for product-led companies. It has been recognized as one of the fastest-growing companies in Oregon and Southwest Washington in 2026, ranking 11th in growth. The company has enhanced its AI tool capabilities and emphasized its role in evolving app messaging trends. Despite these developments, the CEO has confirmed there are no current plans for fundraising. Additionally, Customer.io has shifted away from a self-serve model after its Series A funding, sparking community discussions.

Klaviyo, which targets ecommerce marketing automation and customer data, has been active in financial and strategic moves. The company is preparing to announce its Q3 2026 earnings and has seen analyst interest in its stock potential. Klaviyo recently acquired an AI startup called Agency to boost its AI, returns, and order tracking capabilities. However, it has also cut roles in its design and product teams, indicating some restructuring amid these changes.

Both companies are investing in AI to enhance their platforms, but Customer.io is focusing on organic growth and product evolution without fundraising, while Klaviyo is pursuing acquisitions and financial market engagement. Sales and product teams competing with either should watch Customer.io’s shift away from self-serve and Klaviyo’s integration of AI through acquisitions, as these moves could influence customer experience and product offerings differently.