- Krauthammer
- Krosakiharima Europe BV
- KU Leuven
- Kvadrat
- Kvadrat A/S
- Kvadrat Shade B.V.
- KWS Group
- KWS SAAT SE & Co. KGaA
- KYCnet
- KYOWA KIRIN LIMITED
- L1nda
- La Catrina
- LA FOSSE ASSOCIATES
- LA REMISE
- Lancom B.V.
- Language Matters Recruitment Consultants
- Lantmännen
- LATAM Airlines Group
- LATAM AIRLINES GROUP SA DELEGACION EN ESPAÑA
- Laundryheap
- Laureate Online Education B.V.
- Le Creuset
- Leaning Technologies
- Leapforce, Inc.
- Leaps
- LeaseWeb
- Leatherman Tool
- Legal People
- Legamaster International
- LEGO COMPANY LIMITED
- Leiden University
- Leineweber GmbH & Co. KG
- Lely
- LEMO Connectors Nederland B.V.
- Lenntech BV
- Lenovo Benelux
- Leonardo Royal Hotel Amsterdam
- Lepaya
- Leprastichting
- LeQuest
- LessonUp
- LevelUp Ventures
- LEWAN ASSOCIATES Unternehmensberatung GmbH
- LGH GmbH
- LiateR
- LIBER Europe