Grassroots Enterprise (GRE) injects a little public relations savvy into the efforts of activist groups on both sides of the political divide. The company helps corporations, trade associations, and not-for-profits mobilize and manage public support for their pet issues. Its proprietary software, called Grassroots Multiplier, is a hosted service that integrates e-mail, online databases, and content management capabilities. GRE also provides such services as Web site design, fundraising, database management, PR support, and podcasting, which makes downloadable audio programs available online. Clients include the ACLU, Pfizer, and the Republican National Committee. GRE was bought in 2009 by Edelman.