PandaDoc for Developers - PandaDoc for Developers — easy and scalable all-in-one API solution for generating documents and capturing eSignatures by embedding them into your app, website, or using the backend API.
HTMLEmail.io - Responsive HTML email templates for startups & developers
Presentation templates by Pitch - Designed for big ideas and customizable for any story
Startup Emails - Responsive HTML email templates for startups
Creodocs - Make consistent business documents from beautiful templates
Stripo - Stripo is an all-in-one email design platform. We enable our clients to build emails of any complexity, including interactive AMP emails, really fast and easy.