NAICS 541512:
Computer Systems Design Services
This U.S. industry comprises establishments primarily engaged in planning and designing computer systems that integrate computer hardware, software, and communication technologies. The hardware and software components of the system may be provided by this establishment or company as part of integrated services or may be provided by third parties or vendors. These establishments often install the system and train and support users of the system.
Computer systems integration design consulting servicesLocal area network (LAN) computer systems integration design servicesInformation management computer systems integration design services+1 example
Also called: IT services, cybersecurity
Matching SIC code: 7373 Computer Integrated Systems Design (also 7379 Computer Related Services, Not Elsewhere Classified)
Where it sits
Largest companies with NAICS 541512
Updated Nov 9, 2026| Rank | Company | Headquarters | Employees |
|---|---|---|---|
| 1 |  Cognizantcognizant.com | Teaneck, US | 372K |
| 2 |  IBMibm.com | Armonk, US | 345K |
| 3 |  DXC Technologydxc.com | Ashburn, US | 93K |
| 4 |  Hewlett Packard Enterprisehpe.com | Spring, US | 92K |
| 5 |  USTust.com | Aliso Viejo, US | 41K |
| 6 |  Leidosleidos.com | Reston, US | 37K |
| 7 |  Booz Allen Hamiltonboozallen.com | Mc Lean, US | 37K |
| 8 |  SAICsaic.com | Reston, US | 31K |
| 9 |  TEKsystemsteksystems.com | Hanover, US | 29K |
| 10 |  Globantglobant.com | San Francisco, US | 28K |
Not this code?
Similar activities the Census classifies elsewhere.
- 541330Engineering ServicesProviding robotics engineering design, integration, and related consulting services for industrial and manufacturing facilities and processes
- 449210Electronics and Appliance RetailersRetailing computer hardware or software products and systems and providing supporting services, such as customized assembly of personal computers
- 423430Computer and Computer Peripheral Equipment and Software Merchant WholesalersMerchant wholesaling computer hardware or software products and providing supporting services, such as customized assembly of personal computers
Questions about NAICS 541512
What is the NAICS code for IT services?
Which businesses use NAICS 541512?
What SIC code matches NAICS 541512?
How many companies have NAICS 541512?
Code titles, definitions, examples and SIC matches: NAICS 2022 and the Census concordances, US Census Bureau. Company counts and lists: Crustdata, companies with a website, each by its primary code, updated weekly. Employee counts are estimates.