Wiss, Janney, Elstner Associates, Inc.

Tetra Tech is one of the leading providers of specialized management consulting and technical services. The company focuses on the areas of resource management, infrastructure, and communications. Tetra Tech was founded to provide engineering services related to waterways, harbors and coastal areas. The company has since increased the size and scope of its business and expanded its service offerings through a series of strategic acquisitions and internal growth. Tetra Tech provides environmental services, water and wastewater management, infrastructure services, security design and outsourced technical services.

HDR Architecture is a Seattle-based company that specializes in providing innovative design solutions for a wide range of industries, including markets, civic and government projects, culture and arts, commercial real estate, education, healthcare, hospitality, industrial, science, tech, transportation, urban community development, waste and water management. With a team of talented professionals, HDR Architecture is committed to delivering exceptional results and addressing the world's greatest challenges. As an employee-owned company, HDR Architecture takes pride in its collaborative approach, sustainable practices, and commitment to diversity and inclusion. With a strong foundation built on expertise, experience, and a passion for excellence, HDR Architecture continues to inspire progress and make a positive impact on communities worldwide.Generated from the website

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.