NAICS 541513, 541512
IT Managed Service Providers in California
Establishments primarily engaged in providing on-site management and operation of client computer systems, and computer systems design services.
- Establishments (2023)
- 8,210
- Statewide, California
- Employees
- 99,229
- Mid-March employment
- Annual payroll
- $17B
- All establishments
- Avg. establishment size
- 12.1
- Employees per establishment
What acquirers look at
Contracted monthly recurring revenue per seat is the model that trades well; break-fix and project revenue is not. Client concentration and tech debt drive most valuation adjustments.
IT & MSP by county
Ranked by establishment count, 2023 County Business Patterns. For the crowded-versus-underserved reading, see the saturation ranking, which ranks by establishments per resident instead.
| # | County | Establishments | Per 10k residents | Share of state |
|---|---|---|---|---|
| 1 | Los Angeles County | 1,801 | 1.9 | 21.9% |
| 2 | Orange County | 1,161 | 3.7 | 14.1% |
| 3 | Santa Clara County | 946 | 4.9 | 11.5% |
| 4 | San Diego County | 896 | 2.7 | 10.9% |
| 5 | Alameda County | 684 | 4.2 | 8.3% |
| 6 | San Francisco County | 438 | 5.3 | 5.3% |
| 7 | Sacramento County | 339 | 2.1 | 4.1% |
| 8 | Contra Costa County | 260 | 2.2 | 3.2% |
| 9 | San Mateo County | 231 | 3.1 | 2.8% |
| 10 | Riverside County | 213 | 0.8 | 2.6% |
| 11 | San Bernardino County | 173 | 0.8 | 2.1% |
| 12 | Ventura County | 160 | 1.9 | 1.9% |
| 13 | Placer County | 118 | 2.7 | 1.4% |
| 14 | Santa Barbara County | 86 | 1.9 | 1.0% |
| 15 | Marin County | 74 | 2.9 | 0.9% |
| 16 | San Joaquin County | 62 | 0.8 | 0.8% |
| 17 | Sonoma County | 60 | 1.2 | 0.7% |
| 18 | Fresno County | 56 | 0.5 | 0.7% |
| 19 | El Dorado County | 54 | 2.8 | 0.7% |
| 20 | Kern County | 53 | 0.6 | 0.6% |
| 21 | Santa Cruz County | 41 | 1.6 | 0.5% |
| 22 | San Luis Obispo County | 36 | 1.3 | 0.4% |
| 23 | Monterey County | 26 | 0.6 | 0.3% |
| 24 | Solano County | 25 | 0.5 | 0.3% |
| 25 | Shasta County | 19 | 1.0 | 0.2% |
Counties in California
IT & MSP in Los AngelesIT & MSP in San DiegoIT & MSP in OrangeIT & MSP in RiversideIT & MSP in San BernardinoIT & MSP in Santa ClaraIT & MSP in AlamedaIT & MSP in SacramentoIT & MSP in Contra CostaIT & MSP in FresnoIT & MSP in KernIT & MSP in VenturaIT & MSP in San FranciscoIT & MSP in San JoaquinIT & MSP in San MateoIT & MSP in StanislausIT & MSP in SonomaIT & MSP in TulareIT & MSP in SolanoIT & MSP in PlacerIT & MSP in Santa BarbaraIT & MSP in MontereyIT & MSP in MercedIT & MSP in San Luis ObispoIT & MSP in Santa CruzIT & MSP in MarinIT & MSP in YoloIT & MSP in ButteIT & MSP in El DoradoIT & MSP in ShastaImperialIT & MSP in MaderaIT & MSP in KingsIT & MSP in NapaIT & MSP in HumboldtIT & MSP in NevadaIT & MSP in SutterIT & MSP in YubaIT & MSP in MendocinoSan BenitoLakeTehamaIT & MSP in TuolumneCalaverasIT & MSP in SiskiyouIT & MSP in AmadorGlennLassenDel NorteColusaPlumasInyoMariposaTrinityMonoModocSierraAlpine
Sources
- U.S. Census Bureau, 2023 County Business Patterns. Establishment counts, employment and annual payroll by NAICS. Retrieved 2026-09-08.
- U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages (2026Q1). Quarterly establishment counts and employment for employers covered by unemployment insurance. Retrieved 2026-09-08.