Water and sewage in Ohio
- Genie Co., The
- MFG Water Treatment Products Co.
- Kirila Contractors, Inc.
- Power Resources Operating Co
- The Hoover Co.
- Eltech Systems Corp.
- Chemed Corp
- Ford Development Corp.
- Baleco International
- Norris Brothers Co Inc
- Northeast Ohio Regional Sewer District
- Kirby Co., The
- Diz Corporation
- George J. Igel & Co., Inc.
- General Ionics
- Chemical Services Inc
- Fryman-Kuck, General Contractors, Inc.
- Adams-Robinson Enterprises, Inc.
- Trucco Construction Company, Inc.
- Stanley Steemer International, Inc.
- Peabody Galion
- Royal Appliance Manufacturing Co.
- Komar Industries, Inc.
- Gleason Construction Co., Inc.
- Precision Environmental Company
Water and sewage