K - N
| Producten | Leveranciers |
| Kleurstoffen | HD-Supplies |
| Kolonieteller | Stuart/Bibby Scientific |
| Kwartsglas | QGT (Quartz Glas Techniek)
Wilmad |
| Laboratorium artikelen glas | Corning Inc.
Scilabware
Wheaton
Wilmad |
| Laboratorium artikelen plastic | Alpha Laboratories
Azlon / Scilabware
Simport
Wheaton |
| Laboratorium disposables (glas):
| Corning Inc. |
| Laboratorium disposables (plastic) | Alpha Laboratories
Corning Inc.
Ritmeester pipettes
Simport |
| Lancetten voor vinger- en hielprik | Modulohm |
| Lifescience producten | Corning Inc. |
| Maatglaswerk | Poulten Graf
Scilabware |
| Magneetroerders | Stuart/Bibby Scientific |
| Media (Celkweek-Plantenkweek) | Biochrom |
| Micro tubes | Alpha Laboratories
Simport |
| Microcapillairen | Modulohm |
| NMR monsterbuizen en caps | Wilmad |
| NMR rotoren en caps | Rototec Spintec |
