The Riverside Company, a global private investment firm focused on the smaller end of the middle market, completed the investment in Impact XM, a full-service, end-to-end experiential marketing services provider. Financial terms were not disclosed. “Our partnership with Riverside will help accelerate our many domestic and international growth initiatives. Our team looks forward to expanding our capabilities to build on our strong existing client relationships and welcome new customers onto our service platform. Riverside is a fantastic long-term partner for Impact XM, and I look forward to this next phase of our growth,” Jared Pollacco, Impact XM CEO.