- Adornus Manufacturing
- AFL
- Albemarle U.S
- Alphidia, LLC
- allnex USA Inc.
- Alltrista
- Alpha Sheet Metal Works
- AMBAC INTERNATIONAL
- AME Fabrication & Design, LLC
- American Honda Motor Co., Inc. South Carolina Manufacturing
- A.O. Smith Water Products Company
- Andron Stainless
- Arauco North America
- Ascend Performance Materials, LLC
- AstenJohnson, Inc.
C
M
- 3M
- Mack Molding
- Magna International
- Mankiewicz Coatings LLC
- Marabu NA
- Marion Ceramics Inc
- Mark Anthony Brewing
- McEntire Produce Inc.
- Mercedes-Benz Vans, LLC
- Metromont Corporation
- Michelin
- Milliken & Company
- Milo’s Tea Company
- Modular Millwork, LLC
- Mount Vernon Mills
- Multiplastics
- MW Components – Greer: Springs
- MycoWorks
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- Palmetto Brick Co.
- Paxton Access
- PBI Performance Products, Inc.
- PDM US, LLC
- Pegasus Steel LLC
- Performance Pipe
- Phenix Engineered Textiles
- PolyQuest
- Pomega Energy Storage Technologies Inc
- Protego
- Pulcra Chemicals, LLC
S
- SC State Ports Authority
- Sage Automotive
- Samsung
- Sandy Run Roasting Plant-Starbucks
- Santee Cooper
- SantoLubes Manufacturing LLC
- Schaeffler Group USA Inc.
- Sea Hunt Boat MFG Co., Inc.
- Secondary Solutions, Inc.
- The SEFA Group
- Shaw Industries Group, Inc.
- SI Group
- Signatures Company, LLC
- Sleep Number
- Solvay
- Sonoco Products Company
- Spartanburg Meat Processing Co., Inc.
- Spartanburg Steel Products
- Spectra Colorants, Inc.
- Springs Creative
- Staubli North America
- Suminoe Textile of America
- Sylvamo North America LLC
- Synthomer USA LLC