The Riverside Company, a global investment firm focused on the smaller end of the middle market, has signed a definitive agreement to sell Performance Systems Integration, the leading regional provider of fire and life safety services in the Pacific Northwest, to Summit Fire & Security LLC. The transaction is expected to close pending customary regulatory approvals.

Headquartered in Portland, Oregon, PSI delivers comprehensive fire and life safety solutions to commercial and institutional clients, including system inspection, maintenance, monitoring, repairs and new installations. Under Riverside’s hold, PSI has grown into the largest independent fire life safety provider in the Pacific Northwest, serving more than 21,000 customers across Washington, Oregon, Idaho, Northern California and Hawaii.

Read full press release here.