IBM Blockchain - Start building now with the IBM Blockchain Platform
HTMLEmail.io - Responsive HTML email templates for startups & developers
Oracle Blockchain Cloud Service - Securely, reliably extend business processes and accelerate B2B transactions
Templates by Email Monster - Hundreds of free, responsive email templates. Pick and edit.
Kaleido Blockchain Business Cloud - Create and manage enterprise private blockchain networks within minutes using Kaleido's platform. Our full-stack enterprise blockchain as a service and cloud integrations support your entire blockchain journey, from PoC to live production.
MJML - The open source framework for responsive emails