Kinderhook-backed Apex Waste Solutions, a vertically integrated regional provider of solid waste collection and disposal services, completed the acquisition of Twin Enviro Services, a garbage collection service in Colorado. Financial terms were not disclosed. "Apex is thrilled to welcome the Twin Enviro and WM teams into its growing family of operating sites across Colorado. The acquired operations have a proven track record of dedicated service to their customers and a culture of excellence. These transactions add density in existing markets as well as entrance into adjacent geographies and post-collection infrastructure to our business," Scott Lukach, Apex CEO.