12,818 job postings
Validates knowledge of network fundamentals, routing, switching, IP services, security and automation for managing connected systems.
300IntermediateNo prerequisites
Most In-Demand IT Infrastructure Certifications in 2026
Find the IT infrastructure certifications employers ask for most often. Compare support, networking and Linux credentials from CompTIA, Cisco and Red Hat, then explore the skills, exam formats and costs involved in your preferred route.
21,984 job postings
Validates knowledge of enterprise network architecture, virtualization, infrastructure, assurance, security and automation for designing and troubleshooting networks.
700IntermediateNo prerequisites
31,870 job postings
Validates knowledge of networking concepts, implementation, operations, security and troubleshooting for managing and supporting modern networks.
399EntryNo prerequisites
41,330 job postings
Validates foundational IT support knowledge across hardware, operating systems, networking, security and troubleshooting common technical problems.
548EntryNo prerequisites
5318 job postings
Validates practical skills in administering Red Hat Enterprise Linux, including software, storage, file systems, networking, users and security.
500IntermediateNo prerequisites
6214 job postings
Validates knowledge of Linux system management, services and users, security, automation and scripting, and troubleshooting.
399IntermediateNo prerequisites
Count of job postings in US postings that mention each certification, Sep 2025–Aug 2026. Source