- Amgen (biotech)
- Boehringer Ingelheim (pharmaceutical)
- Cisco Systems (IT)
- Compuware (software)
- EMC (hard/software)
- Friesland Bank Securities (finance)
- Hill & Knowlton (PR agency)
- HP (IT)
- Intermediair.nl (labor market)
- KPN (telecoms)
- LogicaCMG (IT services)
- Management Share (software)
- MatrixOne (SCM software)
- Micrografx (graphics software)
- Niku (IT governance software)
- Nuon (energy)
- ON Technology (software)
- Pfizer (pharmaceutical)
- RAM Mobile Data (IT/telecoms)
- Reumafonds (charity)
- Stichting Sterrekind
- Stichting SWKGroep (largest non-profit organisation for professional childcare in the NL)
- UMC Utrecht (healthcare)
- UMS AB (unified communications)
- Verizon Business (telecoms)
- Vodafone (mobile telecoms)
- Zilveren Kruis Achmea (healthcare insurance)