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Founded in 1991, KL Engineering offers a range of civil engineering services. It provides a variety of construction services for highways, streets and roads. The company also offers surveying, planning and environmental services for clients in the public and private sectors. KL Engineering specializes in transportation engineering. In addition, the company provides municipal services. It maintains a geographical information system department that develops land owner databases to determine existing property baundries and mailing lists. The company offers engineering support services to municipal staff memebers at state, county, city and township levels. KL Engineering manages a staff of surveyors, engineers, technicians, planners, environmental specialists and support personnel.

SEH, also known as Short Elliott Hendrickson, offers a range of engineering and management services. Operational for more than 80 years, the company serves clients in the industrial, government and privates sectors. It provides architectural, geotehnical engineering, community development, and airport planning and design services. The company also offers highway design, private development, marketing communication and construction services. In addition, it provides traffic engineering, transportation planning, wastewater engineering and coating management services. The company serves clients in Minnesota, Wisconsin, Indiana, South Dakota, Nebraska, Wyoming and Colorado. It manages a staff of engineers, architects, planners and scientists. SEH maintains a location in Madison, Wis.

Established in 1927, Affiliated Engineers offers engineering services in various areas, such as mechanical, electrical, piping and plumbing engineering. Located in Madison, Wis., the company focuses on technically complex assignments and projects of scale. It also provides services in other fields, such as architectural lighting, commissioning, construction field services, cost estimating, fire protection, information technology, instrumentation and controls, sustainable design, systems integration and utility master planning. It provides various information technology systems, such as duct banks, utilidors, cable tray, conduits, raceway and open and zone systems for inside and outside cable plant systems. In addition, Affiliated Engineers offers information technology cable plant designs, including single-mode and multimode optical fiber cable, copper cable and wireless systems.