Engage by Cell is the umbrella company of Win by Cell, Guide by Cell, Give by Cell, and Train by Cell. Headquartered in San Francisco, California, Engage by Cell brings mobile solutions like text messaging, mobile websites, GPS mapping, fundraising and engagement tools to organizations across all industries. With more than 4,000 clients, Engage by Cell and its divisions have worked with a variety of clients from large corporations to museums, universities, government agencies, and nonprofits.