MMSI, a subsidiary of Rain the Growth Agency, is a modern performance-focused TV media agency that delivers transformational growth for our clients. With more than 39 years of experience successfully driving sales and building brands, we're one of the oldest and most successful direct response television (DRTV) media and creative agencies in the United States, as well as one of the largest buyers of guaranteed-performance TV media in the country. DRTV is a proven, cost-effective way for brands to reach large audiences and turn their investment into leads and sales. Using linear TV and CTV, we efficiently reach our clients' target demographic, driving immediate sales and building game-changing levels of awareness, while simultaneously delivering an attractive ROI.