C
N
- Nan Ya Plastics Corp.
- Nephron Pharmaceuticals Corporation
- New Life Chemical & Equipment, Inc.
- NICCA U.S.A., Inc.
- Novolex Holdings, Inc.
- Nucor
- Nutramax Laboratories, Inc.
S
- SC State Ports Authority
- Sage Automotive
- Samsung
- Santee Cooper
- Sea Hunt Boat MFG Co., Inc.
- Shaw Industries Group, Inc.
- SI Group
- Sleep Number
- Solvay
- Sonoco Products Company
- Springs Creative
- Staubli North America
- Stealth Concealment Solutions, Inc.
- Suminoe Textile of America
- Swagelok
- Synthomer USA LLC
