The Riverside Company acquired Performance Systems Integration, a leading provider of fire and life safety services in the Pacific Northwest, from Peterson Partners, an independent investment management firm. Financial terms were not disclosed. “Fire and life safety services are critical to any region, and we are thrilled to partner with the PSI team to help extend their geographic reach,” said Riverside Managing Partner Loren Schlachet. “During our partnership, we plan to round out the platform with strategic add-ons, create a technician training academy and expand upon PSI’s sales and marketing efforts.”