Politics and Business magazines
- WPL Holdings, Inc.
- WPS Resources Corporation
- Wright Express Corporation
- Wright Medical Group, Inc.
- WS Atkins Plc
- WTD Industries, Inc.
- Wunderman
- Württembergische Metallwarenfabrik AG (WMF)
- Wyant Corporation
- Wyeth
- Wyle Electronics
- Wyman-Gordon Company
- Wynn’s International, Inc.
- Wyse Technology, Inc.
- X-Rite, Inc.
- Xcel Energy Inc.
- Xeikon NV
- XM Satellite Radio Holdings, Inc.
- Xstrata PLC
- XTO Energy Inc.