Cisco Certified Internetwork Expert (CCIE)
Cisco Certified Network Professional (CCNP)
Cisco Certified Network Associate (CCNA)
VMware Certified Professional 5 (VCP)
Cyberoam Certified Network & Security Professional (CCNSP)
Juniper Networks Certified Internet Associate (JNCIS)
Juniper Networks Certified Internet Specialist (JNCIS)
Linux Professional Institute (LPI)
MikroTik Certified Inter-networking Engineer (MTCINE) 
MikroTik Certified Wireless Engineer (MTCWE)
MikroTik Certified Routing Engineer (MTCRE)
Microsoft Certified Information Technology Professional (MCITP)
Microsoft Certified Technology Specialist (MCTS)
Microsoft Certified Solutions Associate-Security (MCSA)
Microsoft Certified Solutions Expert (MCSE)
Microsoft Certified Solutions Associate (MCSA)
Institute of Electrical and Electronics Engineers (IEEE)