Politics and Business magazines
- Swift Energy Company
- Swift Transportation Co., Inc.
- Swinerton Inc.
- Swire Pacific Limited
- Swisher International Group Inc.
- Swiss Air Transport Company, Ltd. (Swissair)
- Swiss Bank Corporation
- Swiss International Air Lines Ltd.
- Swiss Valley Farms Company
- Swisscom AG
- Swissport International Ltd.
- Sybron International Corp.
- Sycamore Networks, Inc.
- Sykes Enterprises, Inc.
- Sylvan Learning Systems, Inc.
- Sylvan, Inc.
- Symbol Technologies, Inc.
- Symrise GmbH and Company KG
- Symyx Technologies, Inc.
- Syngenta International AG