Lobbyists having Microsoft as a client
- APCO Worldwide
- Benenson Strategy Group
- Berbalk Communications
- Brunswick Group LLP
- Burson Cohn & Wolfe Sprl
- BXL Consulting s.r.o.
- Cabinet d'avocats SAMMAN
- cabinet DN consulting sprl
- Covington & Burling LLP
- Edelman Public Relations Worldwide
- EuroNavigator Ltd
- Fleishman-Hillard
- Forum Europe
- FTI Consulting Belgium
- Hanbury Strategy and Communications Limited
- Hanover Communications International
- Linklaters LLP
- Russchen Consultants
- Schuman Associates
- Weber Shandwick