Politics and Business magazines
- SPS Technologies, Inc.
- SPSS Inc.
- Square D
- Squibb Corporation
- SR Teleperformance S.A.
- SRA International, Inc.
- SRAM Corporation
- SRC Holdings Corporation
- SRI International, Inc.
- SSAB Svenskt Stål AB
- SSL International plc
- SSOE Inc.
- St Ives plc
- St. James's Place Capital, plc
- St. Joe Paper Company
- St. John Knits, Inc.
- St. Louis Music, Inc.
- St. Mary Land & Exploration Company
- St. Paul Bank for Cooperatives
- STAAR Surgical Company