The Riverside Company, a global private investor focused on the smaller end of the middle market, completed the investment in Commonwealth Heritage Group, a Michigan-based cultural resource management consulting firm. Financial terms were not disclosed. "This is the first add-on for PaleoWest since our acquisition of the business at the end of 2021. We are excited by the additional scale CHG brings to the group. The two businesses’ geographic footprints are highly complementary, giving the combined platform a nationwide footprint and making it better suited for projects that span multiple geographies," Loren Schlachet, Riverside Managing Partner.