Governed enterprise email and marketing creation platform with AI guardrails
Stensul is an enterprise marketing creation platform based in New York and Buenos Aires. It provides no-code email building, shared brand and compliance guardrails, and collaborative workflows so marketing teams can create content faster without losing control. In November 2026 it debuted Self-Improving Email, which links campaign performance to content variants to inform future sends under human approval. Website: stensul.com.