- Blue Horseshoe
- Blue Lynx
- BlueCielo ECM Solutions
- Blum-Novotest GmbH
- Boehringer Ingelheim
- Bol.com
- Boldoot
- Bolia International A/S
- Bolsius Nederland B.V.
- Bolt Mobility B.V.
- Booking.com
- Booking.com
- Bookingpetz.com
- Booqable
- Boost Collectibles B.V.
- Bord Bia
- Borealis AG
- Borealis Hotel Group
- BOS Brands
- Boskalis Nederland
- Bot-Hive
- Bounce Exchange
- Bouw Beheer Co
- Boyden International GmbH
- BP EUROPA SE
- BR International Consulting Services GmbH
- Braingineers
- Brand Loyalty B.V.
- Brand-Butler B.V.
- BrandLoyalty
- BRAUN & PARTNER Managementberatung Inh. Walter W. Braun
- BRB International
- BRB international via Delfin Executives
- BRecruited
- Brekz International BV
- Bridge Marketing
- BridgeIN
- BRIDOR HOLDING
- Bright Computing
- Bright/River formerly MisterClipping.com
- Bright8
- Bristol-Myers Squibb Co.
- British American Tobacco
- British American Tobacco Nederland
- British Council
- British Council