Logical Approach

PTI Technologies offers design, manufacture, marketing and distribution of high-technology filter elements and modules. The company also offers a range of filtration and fluid flow equipment. It is a wholly owned subsidiary of the ESCO Technologies Corporation. The company manufactures filtration products and provides engineering support services to the aerospace industry. It has technical expertise in the areas of fluid filtration and several product applications ranging from simple filter elements to complex hydraulic controls. The company uses 3-D solids and CATIA computer-aided design systems to create filter assembly, hydraulic manifolds and related hardware. It is located in Oxnard, Calif.

Raytheon Company in El Segundo, CA is a leading technology and innovation company specializing in defense, civil government, and cybersecurity solutions. With a focus on advanced technology and engineering expertise, Raytheon Company provides a wide range of products and services to support national security and critical infrastructure needs. Generated from their business information

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. The company had nearly 7,500 employees located in more than 250 offices throughout the world. Tetra Tech was founded in 1966 and is based in Pasadena, Calif.