- Active Carbons LLC
- All-Composite Inc
- Applied Industrial Materials
- C & B Intl Inc
- Calcarb Inc
- Calgon Carbon Corp
- Carbon Activated LTD
- Carbon Activated LTD
- Carbone Of America
- Cats Carbon
- Continental Carbon Co
- Craig Misch DDS
- Craig Myers
- Craig N Gower Construction
- E & L Enterprises
- Fiberlite Corp
- Great Lakes Carbon Corp
- Helwig Carbon Products Inc
- Hickman Williams & Co
- Intech EDM
- KCK Resources Inc
- Oxbow Carbon & Minerals Inc
- Recreational Composites Inc
- Reserve Coke & Chemical Inc
- SGL Carbon Corp
- SGL Carbon Corp
- SGL Carbon Corp
- Solution Dispersions
- Southwest Nanotechnologies
- Stoner & Stoner
- Vitre-Cell
- Westates Carbon Inc
- Western Slope Carbon Inc
