| | Chubb Corp (Cleveland, OH) Agents of auto & homeowners insurance | |
| | Chubb Group (Cincinnati, OH) Agents for auto & homeowners insurance | |
| | Cincinnati Area Board/Realtors (Cincinnati, OH) Professional organization: real estate brokers & agents | |
| | Clean World Inc (Akron, OH) Distributes cleaning agents & janitorial supplies | |
| | Cleaning Lady Inc (Mansfield, OH) Detergents & cleaning agents | |
| | Comey & Shepherd Inc (Cincinnati, OH) Real estate agents & broker | |
| | Comey & Shepherd Inc (Cincinnati, OH) Real estate agents & broker | |
| | Consolidated Chemical Works (Chicago, IL) Soap products, cleaning agents | |
| | Custom Chemicals Corp (Mulberry, FL) Manufacture paper industry pulping aids & mining industry defoaming & flotation chemicals | |
| | Demmler Products Co (Kewanee, IL) Foundry products, core box vents & release agents | |
| | Douglass Fertilizer & Chemical (Altamonte Spgs, FL) Liquid & dry fertilizer; dust abatement: roads, industrial coating & granulation agents | |
| | Duraclean International (Arlington Hts, IL) Carpet, upholstery & drapery cleaning agents; janitorial supplies | |
| | Dylon Industries Inc (Brooklyn, OH) Metal working lubricants: forging, extrusion, die casting, mold release agents & special high temp ceramic cements | |
| | Dyno Nobel Inc (Barry, IL) Blasting agents | |
| | Eager Plastics Inc (Chicago, IL) Epoxy, polyesters, silicones, fiberglass materials, RTV rubber & release agents | |
