Klaviyo

Klaviyo is a marketing automation platform purpose-built for e-commerce, providing email and SMS campaigns, behavioral automation flows, customer segmentation, and predictive analytics optimized for Shopify, WooCommerce, and BigCommerce merchants. Founded in 2012, Klaviyo is publicly traded (NYSE: KVYO) and powers marketing for over 130,000 e-commerce businesses including Chubbies, Brooklinen, and ColourPop. Klaviyo's core differentiation is its native e-commerce data model: it ingests Shopify/WooCommerce events (orders placed, products viewed, cart abandoned, purchase value) natively and builds its entire segmentation and automation system on top of this real-time commerce data. This enables hyper-targeted flows like "send this SMS 4 hours after cart abandonment for customers with >$150 lifetime value who haven't purchased in 60 days" — which would require complex workarounds in a general-purpose tool like ActiveCampaign. Klaviyo's predictive analytics layer calculates expected date of next purchase, lifetime value prediction, and churn risk score for every contact — enabling winback campaigns before churn occurs and VIP tier identification before customers reach it.