- CNRDPA of BOU ISMAIL (Ministry of Agriculture, Rural Development and Fisheries)
- CRAPC (Scientific and Technical Research Center in Physico-Chemical Analysis)
- National Forest Research Institute of Blida
- Company CRD SAIDAL (Ministry of Pharmaceutical Industry)
- Water and Sanitation Company of Algiers "SEAL"
- Directorate of Agricultural Services of the Wilaya of Blida
- National Institute for Agronomic Research “INRA”
- DJURDJURA BOUIRA NATIONAL PARK
- Conservation of the forests of the wilaya of TISSEMSILT
- the National Office of Meteorology ONM
- Nestle Waters Algeria
- Reghaia Kinetic Center
- THNIET EL HAD TISSEMSILT NATIONAL PARK
- CHREA BLIDA NATIONAL PARK
