Managed IT Service Providers in California: Ranked Lists by City (2026)
523 cities with a ranked listUpdated 0 paid placements in any rankingHow we rank →
We rank managed IT service providers in 523 California cities, 222,063 city rankings in all. The largest lists are Arcadia (893), Avocado Heights (893) and West Puente Valley (893).
Managed IT service providers by city in California
Every California city with a ranked list of managed IT service providers, largest first. Each list ranks IT firms within 50 mi of the city.
Ranked by IFR Score from public data. Sponsored placements are labelled and never change the order.
Highest IFR Scores among California managed IT service providers
Each score is computed within its own city list, so use the city pages to compare businesses. Shown for orientation, not as a state ranking.
Ranked by IFR Score from public data. Sponsored placements are labelled and never change the order.
| # | IT firm | IFR Score | City list | Google rating |
|---|---|---|---|---|
| 1 | Sam's IT Solutions | 70 | #1 in Pasadena | 5.0★ (497) |
| 2 | Prime Networks, Inc | 69 | #1 in El Centro | 5.0★ (29) |
| 3 | Annansys | 68 | #1 in Chino Hills | 4.9★ (713) |
| 4 | San Diego IT Support | 68 | #1 in Coronado | 5.0★ (189) |
| 5 | AUTOMATES | 68 | #1 in National City | 5.0★ (177) |
| 6 | Hamers I.T., Inc | 68 | #1 in Atascadero | 5.0★ (76) |
| 7 | Demandforce | 67 | #1 in Chinatown | 4.5★ (441) |
| 8 | Forum Info-Tech | 67 | #1 in Corona | 5.0★ (173) |
| 9 | GenCare Managed IT Services Los Angeles | 67 | #2 in Glendale | 5.0★ (174) |
| 10 | IT Help San Diego | 67 | #1 in La Jolla | 5.0★ (202) |