NAICS Codes:
541512 - Computer Systems Design Services
541519 - Other Computer Related Services (IT Value Added Reseller)
541511 - Custom Computer Programming Services
541513 - Computer Facilities Management Services
541990 - All Other Professional, Scientific & Technical Services
541330 - Engineering Services
518210 - Data Processing, Hosting & Related Services
611420 - Computer Training
811212 - Computer & Office Machine Repair & Maintenance

IT & Telecom PSC Codes: 
D307 - IT Strategy & Architecture
D306 - Systems Analysis
D325 - Data Centers & Storage
D324 - Business Continuity
D310 - Cyber Security & Data Backup
D318 - Integrated Hardware, Software, Services Solutions
D301 - Facility Operation & Maintenance
7010 - IT Equipment System Configuration