SignatureSatori - A Solution for central e-mail signature management for Google Apps.
WiseStamp - WiseStamp allows you to easily create and implement slick and unique email signatures for your business.
Signature Lab - Create a beautifully designed email signature in seconds.
Mailcastr - Create email signature that tells when your email is read.✉️
Email Signature Template Generator - Create your free email signature with our easy-to-use tool.
Signature Hound - Email signatures made easy.