AK Industries, Inc.

AK Industries, Inc. is a family-owned manufacturer headquartered in Plymouth, Indiana, producing fiberglass and polyethylene products for centralized and decentralized wastewater management since 1981. Operating from two Plymouth facilities — one dedicated to fiberglass fabrication and another handling polyethylene, wastewater, and custom molding — the company employs approximately 19 people. Their fiberglass division manufactures basins for lift stations and residential ejector applications up to 10,000 gallons, valve boxes, solid fiberglass and hinged-door covers, pre-engineered lift stations, and risers in various diameters and heights. The polyethylene division produces sump pit and sewage basins, basin covers and accessories, and plumbing components. Their septic tank line spans 750 to 1,500 gallons in both potable and standard configurations, available across multiple state markets. A dedicated custom rotational molding division provides end-to-end product development and production services. AK Industries positions its fiberglass and polyethylene products as lighter, more durable, and more environmentally sustainable alternatives to conventional concrete infrastructure, emphasizing reduced scrap rates and lower lifecycle energy costs. The company operates alongside affiliate brands Steele Plastics and Hydro-Action, and maintains resource libraries including buoyancy calculators, installation manuals, and specification sheets.