- Worldline NV
- Wrist Ship Supply
- WSP
- WSP Norge
- WTS Energy
- WTS Group AG Steuerberatungsgesellschaft
- WUA
- WUA Global
- Würth Industrie Service GmbH & Co. KG
- WYSE Travel Confederation
- WYSE Travel Confederation
- XAL GmbH
- XB Consultants
- XBOSoft
- Xebia Group
- Xelvin
- Xerox
- XIHELM LIMITED
- Xindao B.V.
- XITE
- XL Studenten Uitzendbureau
- XNT LTD (Exante)
- XNT Ltd.
- XPO Logistics
- Xpol platform
- Xtrasource
- YACHT
- Yacht Nederland BV
- Yamaha Motor Europe NV
- YAMAHA Music Europe GmbH
- Yanmar Marine International
- YAPIARTI B.V.
- Yara Sluiskil B.V.
- yfood Labs GmbH
- Yogen Fruz
- Yokogawa Europe Solutions B.V.
- Yoores Recruitment Solutions
- YOTEL Amsterdam
- YOTELAIR Amsterdam Schiphol
- YoungCapital
- YoungCapital B.V.
- YoungCapital International
- Your Recruiter
- YourBI
- YourCityBike
- Yoursurprise