NAICS 561210:
Facilities Support Services
This industry comprises establishments primarily engaged in providing operating staff to perform a combination of support services within a client's facilities. Establishments in this industry typically provide a combination of services, such as janitorial, maintenance, trash disposal, guard and security, mail routing, reception, laundry, and related services to support operations within facilities. These establishments provide operating staff to carry out these support activities, but are not involved with or responsible for the core business or activities of the client. Establishments providing facilities (except computer and/or data processing) operation support services and establishments providing private jail services or operating correctional facilities (i.e., jails) on a contract or fee basis are included in this industry.
Military base support servicesJail operation on a contract or fee basisBase facilities operation support services+4 examples
Matching SIC code: 8744 Facilities Support Management Services
Where it sits
Largest companies with NAICS 561210
Updated Nov 9, 2026| Rank | Company | Headquarters | Employees |
|---|---|---|---|
| 1 |  ABM Industriesabm.com | New York, US | 33K |
| 2 |  CBRE Global Workplace Solutions (GWS)cbre.com | Dallas, US | 21K |
| 3 |  DynCorp Internationaldyn-intl.com | Mc Lean, US | 10K |
| 4 |  Crothall Healthcarecrothall.com | Wayne, US | 6.8K |
| 5 |  The GEO Group, Inc.geogroup.com | Boca Raton, US | 6.5K |
| 6 |  C&W Servicescwservices.com | Needham, US | 4.5K |
| 7 |  Vectrusvectrus.com | Colorado Springs, US | 4K |
| 8 |  HHS, LLChhs1.com | Dripping Springs, US | 4K |
| 9 |  ISS Facility Services - North Americaissworld.com | San Antonio, US | 3.8K |
| 10 |  Savannah River Nuclear Solutionssavannahrivernuclearsolutions.com | Aiken, US | 3.2K |
Not this code?
Similar activities the Census classifies elsewhere.
- Establishments primarily engaged in providing only one of the support services (e.g., janitorial services) that establishments in this industry provide are classified in the appropriate industry according to the service provided.
- Establishments primarily engaged in providing management and operating staff for the complete operation of a client's establishment, such as a hotel, restaurant, mine, or hospital, are classified according to the industry of the establishment operated.
- 621Ambulatory Health Care ServicesEstablishments primarily engaged in providing ambulatory health care services within a client's facilities
- 531312Nonresidential Property ManagersEstablishments primarily engaged in managing nonresidential property for others without providing operating staff
Questions about NAICS 561210
Which businesses use NAICS 561210?
What SIC code matches NAICS 561210?
How many companies have NAICS 561210?
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.