We Stand Out Among the Best Great Lakes Gas Transmission Company has approximately 200 employees of which about 100 are located at the Troy headquarters and 100 are located at field locations in Minnesota, Wisconsin and Michigan. See "Who We Hire" and "Benefits" for further information. It is the policy of Great Lakes Gas Transmission Company to provide equal employment opportunity to all individuals, regardless of race, color, religion, sex, age, height, weight, marital status, national origin, disability, veteran disability, any covered veteran status or other basis protected by federal, state or local law. Harassment based on any of the above-mentioned factors is prohibited. For more information about Great Lakes, you may contact us at our headquarters at 5250 Corporate Drive, Troy, Michigan 48098; (248) 205-7400 or by e-mail via this web site.