- Willemien Storm
- Willenbrock Fördertechnik Kg Acquisitions
- Willerby Holiday Homes Acquired By Equistone Partners Europe Limited
- Willert Home Products Acquisitions
- Willette Court Reporting Acquired By Esquire Deposition Solutions
- Willful Acquisitions
- Willgain Enterprises Acquired By Tomar Industries
- WillHire Acquired By PRO Unlimited
- Willi Elbe Gelenkwellen KG Acquired By AEQUITA SE KGaA
- Willi Westenberger
- William & Henry Associates
- William ("Bill") Hoy
- William (Bill) Fisher Jr.
- William (Bill) Hudson
- William (Bill) Sherman
- William Aaronson
- William Adams & Associates Acquired By AssuredPartners
- William Akins
- William Alderman
- William Allen
- William Allen
- William Allen
- William Altieri
- William Andereck
- William Andersen
- William Anderson
- William Anderson
- William Anderson
- William Anderson
- William Arnhols
- William “Billy†DeArman
- William Bajraszewski
- William Barth
- William Belanger
- William Belcher
- William Benitez
- William Berger
- William Bergström
- William Berrington
- William Bettis
