Zak Cassady-Dorion

Zak Cassady-Dorion is the founder and CEO of ECD Digital Strategy, a Klaviyo Elite Master Partner and Shopify Plus Partner. He built ECD to help DTC ecommerce brands turn owned channels into predictable, compounding revenue, and today the agency runs email and SMS retention programs for more than 70 active brands. A Klaviyo Champion and 2026 Klaviyo Partner Advisory Council member, Zak also co-hosts the DTC Revenue Rocket podcast alongside Klaviyo.

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Zak Cassady-Dorion

Aug 4, 2026

Cut your email brief writing time by 75% with Claude

One ecommerce agency cut email marketing brief writing time by 75% with an AI system built on Claude. See how the prompts and workflow actually work.