McKinstry was founded in 1960. However, it has a history dating back to 1934. George Allen and Merrill McKinstry formed the company as a result of the death of W.E. Beggs Company owner William Beggs. Like virtually all of the mechanical contractors of the 1960s, McKinstry originated as a plumbing and piping services firm. However, over the following decade, McKinstry added sheet metal, fire protection and temperature controls to its core capabilities and pioneered the design/build method of mechanical construction. McKinstry is now a full service mechanical contractor in the Pacific Northwest, with annual sales in the $100 million range. It employs around 650 staff and field technicians who help deliver a wide range of services, including mechanical construction, engineering, architectural metal, maintenance and facility management to many clients. Headquartered in Seattle, it also has branch facilities in Portland, Ore.

Cascadia is pioneering a sustainable future by providing consulting services on issues related to the convergence of people, business, and the environment. Our mission is to make a difference for our clients, and for the environment. We strive to accomplish this mission by: Focusing first and foremost on our clients. We strive to fully meet needs and exceed expectations every time with every client. Performing the highest quality objective work. Our commitment to producing the highest quality products and services for our clients is, and will continue to be, the key to our success. Fostering creativity. We emphasize finding creative, inventive ways to solve problems and implement solutions.