Where is larson manufacturing company located? Larson Manufacturing Company, Inc. is located in Brookings, SD, United States and is part of the Lumber and Other Construction Materials Merchant Wholesalers Industry. Larson Manufacturing Company, Inc. has 240 total employees across all of its locations and generates $126.45 million in sales (USD).How do i contact larson support? CONTACT US. Have a question, suggestion, or concern? Contact our support team. Available by phone Monday through Friday 7:30AM - 4:30PM and Saturday 9:00AM - 2:00PM Central time. Call us at 888-483-3768 for additional assistance with your LARSON product.Who is larsen supply company? Larsen Supply Co. is the leader in the Council Bluffs, Omaha and Lincoln metro areas, supplying the highest quality janitorial, restroom and restaurant goods. Since 1978, Larsen Supply Co. has been a family owned and operated business based in Council Bluffs, Iowa.Where are larson windows made? LARSON is headquartered in Brookings, SD and has door and window factories in Brookings, SD; Lake Mills, IA; and Mocksville, NC. The company maintains its own distribution centers and a national field sales team. LARSON products are widely available from home improvement retailers and dealers in the U.S. and Canada.