Linux Certification's clients include:
- University of Cape Town,
- Dimension Data,
- University of Johannesburg,
- Metropolitan Life,
- MWeb,
- Computicket,
- Ekurhuleni Metro
- Departmetn of Communications and
- First National Bank,
- Swaziland Civil Aviation Authority,
- Nedbank,
- Giz,
- HSRC,
- UN Aids,
- 24.com,
- Barloworld,
- SA Airlink and
- Junk Mail