Sigma Design

PBS Engineering and Environmental Inc. is dedicated to providing quality programs, design solutions, and field services to a wide range of organizations in the public and private sectors. With 30 years of experience in built and natural environments, PBS offers professional consulting and management projects through their eight offices located in Oregon, Washington, and Idaho. Generated from their website's infomation

Specialty Engineering offers testing, maintenance and repair services for high voltage systems. Founded in 1981, its service areas include Oregon, Washington and Alaska. It offers maintenance services of circuit breakers and switchers, reclosers, regulators, relays, switchgears, tap changers and transformers. The company also offers technical services that include protective relay testing, new equipment commissioning, customized crew training and vacuum oil processing. Specialty Engineering also offers new equipment maintenance and planning services. In addition, the company provides revenue meter testing and calibration services. Located in Vancouver, Wash., Specialty Engineering is a part of Engineered Solutions Group.

Tetra Tech, based in Portland, OR, is a global leader in providing innovative solutions through science, technology, and innovation to improve the quality of life for people around the world. Their diverse range of services includes environmental and climate change solutions, water supply management, energy projects, biodiversity conservation, and digital transformation. With a commitment to sustainability and community impact, Tetra Tech aims to improve the lives of 1 billion people by 2030 by creating resilient and sustainable communities. Through their expertise in engineering, science, and technology, they work towards advancing environmental, social, and governance goals to protect communities and the environment. Generated from the website