MSPSIG.DIR · state · as of 2026-10-26

Managed service providers in California

878 managed service providers are tracked in California. Endsight ranks highest by MSP score. Rated providers average 4.74 on Google.

✓ MSPs only Claimed Rated Cybersecurity ✓ Managed IT Compliance Backup and disaster recovery Microsoft 365

Providers tracked878

Top rankedEndsightSan Diego · MSP score 90

Rated providers average4.74★on Google · median score 50

Ranked by MSP score

top 22 of 878 shown · sort: score / best reviewed

Filtered: MSPs only · Managed IT · clear

MSP score parts:Reputation (up to 30)Presence (up to 25)Credibility (up to 20)Scale (up to 15)Momentum (up to 10)

#ProviderServicesGoogleMSP scoreTrending

001

EndsightSan Diego · MSP · 100-249Managed ITHelp DeskIT consulting5.0★ (42)90100

002

Jones ITSan Francisco · MSP · 100-249Managed ITCo-managed ITCybersecurity5.0★ (426)89100

003

XantrionLafayette · MSP · 100-249Managed ITManaged CybersecurityIT consulting4.9★ (80)88100

004

Abtech TechnologiesVista · MSP · 100-249Managed ITHelp DeskBackup and disaster recovery4.9★ (34)8450

005

IgnitionSan Francisco · MSP · 250+Mobile Device ManagementCybersecurityCompliance5.0★ (24)8225

006

centrexITPoway · MSP · 50-99Managed ITCybersecurityCloud migration4.9★ (53)8150

007

Managed SolutionSan Diego · MSP · 100-249Managed ITCo-managed ITIT Help Desk5.0★ (76)8175

008

GroupOneSacramento · MSP · 50-99Managed ITCo-managed ITHelp Desk5.0★ (55)80100

009

SynoptekCosta Mesa · MSP · 250+Managed ITIT consultingCloud migration5.0★ (5)79100

010

XceptionalSan Diego · MSP · 50-99Managed ITCo-managed ITCybersecurity4.6★ (10)7875

011

Method TechnologiesCypress · MSP · 25-49Managed ITCo-managed ITInternet Phone Service5.0★ (60)7875

012

ClearFuze Networks, Inc.Los Angeles · MSP · 25-49Managed ITCybersecurityCompliance5.0★ (54)7775

013

Noble Technology GroupLa Mesa · MSP · 10-24Managed ITCloud ServicesBackup and disaster recovery5.0★ (66)7750

014

Network Builders ITClaimedModesto · MSP · 25-49Managed ITCo-managed ITCybersecurity4.8★ (39)77100

015

NIC IncWoodland Hills · MSP · 100-249Managed ITHelp DeskOnsite Support5.0★ (4)7775

016

Allsafe ITPasadena · MSP · 50-99Managed ITBackup and disaster recoveryHelp Desk4.8★ (63)7725

017 $Infracore logo$ InfracoreSan Diego · MSP · 50-99Managed ITCybersecurityCloud migration5.0★ (14)7775

018

CalanceAnaheim · MSP · 250+Generative AIBusiness IntelligencePower Bi Consulting5.0★ (3)7650

019

DivergeITTorrance · MSP · 50-99Managed ITCo-managed ITCybersecurity5.0★ (5)7675

020

Forum Info-TechCorona · MSP · 10-24Managed ITCo-managed ITCybersecurity5.0★ (173)75100

021

Onsite Computing, Inc.Corona · MSP · 10-24Managed ITCo-managed ITCloud migration5.0★ (62)7550

022

TruAdvantageSan Francisco · MSP · 25-49Managed ITManaged SecurityManaged Cloud5.0★ (88)7550

Showing 22 of 878 · load moreMissing or misranked? Claim it ▸

Map

providers by city

Drawn from provider coordinates

What the data shows

measured 2026-10-26

50.5

Median MSP scoreof California providers

Publish a DMARC policyof California providers

53%

Claim 24/7 supportof California providers

Median headcountemployees

120 cities in California carry exactly one tracked provider.

** end of report **

Cities in California

top 12 of 120 · providers tracked

62Irvine

15Fresno

14Anaheim

11Lake Forest

10Long Beach

10Riverside

From our research

MSPSIG.WIRE

2026-10-05IT companies in California: what 4,086 listings show

2026-10-25IT Companies in Missouri: What the Listings Show

How many managed service providers are in California?

878 tracked as of 2026-10-26.

Which provider ranks highest in California?

Endsight, by MSP score.

What is the median size of a provider here?

6 employees.

Listed in California?

Claim your company, free.

See where you rank against the 878 providers in your state and the firms inside your radius.

Claim your company ▸Top 100 ranked