MSPSIG.DIR · state · as of 2026-10-27

IT service providers in California

1,197 IT service providers are tracked in California, 574 of them MSPs. Jones IT ranks highest by MSP score. Rated providers average 4.67 on Google.

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

Providers tracked1,197574 MSPs

Top rankedJones ITSan Francisco · MSP score 89

Rated providers average4.67★on Google · median score 53

Ranked by MSP score

top 73 of 586 shown · sort: score / best reviewed

Filtered: rated · Cloud migration · 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

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

002

Trace3Irvine · IT consulting · 250+Managed ServicesIT consultingAdvisory Services5.0★ (1)84100

003

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

004

Crimson ITLos Angeles · MSP · 50-99Backup and disaster recoveryCloud migrationCompliance4.9★ (98)8475

005

centrexITPoway · MSP · 50-99Managed ITCybersecurityCloud migration4.9★ (53)8350

006

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

007

DevsincSan Francisco · IT consulting · 250+Digital TransformationApplication EngineeringCloud migration4.5★ (672)8150

008

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

009

Relevance LabSan Jose · IT consulting · 250+AutomationCloud migrationCloud Consulting5.0★ (3)8050

010

TechAheadAgoura Hills · IT consulting · 250+Cloud migrationComplianceCybersecurity4.8★ (16)8050

011

Svitla SystemsCorte Madera · IT consulting · 250+Cloud migrationCloud StrategyManaged Services5.0★ (6)7975

012

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

013

Parachute TechnologyLos Angeles · MSP · 50-99Cloud migrationComplianceCybersecurity4.9★ (34)79100

014

TD SYNNEXFremont · VAR and telecom · 250+Cloud migrationCybersecurity4.4★ (23)7850

015

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

016

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

017

Waverley SoftwarePalo Alto · IT consulting · 100-249Legacy ModernizationAI Application EngineeringPlatform Stabilization5.0★ (6)7750

018

Method TechnologiesCypress · MSP · 25-49Managed ITCo-managed ITInternet Phone Service5.0★ (60)7775

019 $Infracore logo$ InfracoreSan Diego · MSP · 50-99Managed ITCybersecurityCloud migration5.0★ (14)7775

020

Methodology ITLos Angeles · MSP · 5-9Managed ITCybersecurityHelp Desk5.0★ (161)77100

021

AllCodeSan Francisco · IT consulting · 25-49SAAS DevelopmentMobile App DevelopmentWeb Application Development5.0★ (3)7750

022

UpCurve CloudLos Angeles · IT consulting · 10-24CybersecurityCloud migrationTraining4.8★ (73)76100

023

DatapathFresno · MSSP · 50-99Managed ITCo-managed ITHelp Desk5.0★ (8)7675

024

ProleadsoftSan Francisco · IT consulting · 10-24App DevelopmentWeb DesignWeb Development5.0★ (88)7675

025

LAWGISTICS, INC.Carlsbad · MSP · 10-24Backup and disaster recoveryCloud migrationCompliance5.0★ (144)7575

026

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

027

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

028

BACS Consulting GroupSanta Clara · MSP · 50-99Backup and disaster recoveryCloud migrationCompliance5.0★ (26)7550

029

ZZ Computer IT SUPPORTLos Angeles · MSP · 10-24Backup and disaster recoveryCloud migrationCompliance5.0★ (63)7575

030

CompuOneSan Diego · MSP · 25-49Microsoft 365Cloud migrationBackup and disaster recovery4.7★ (13)7575

031

360DegreecloudLos Angeles · IT consulting · 250+Salesforce ConsultingSalesforce ImplementationIT consulting5.0★ (15)7425

032

Entisys360Irvine · MSP · 250+Cloud migrationCompliance4.8★ (4)740

033

AllConnectedSimi Valley · MSP · 25-49Managed ITCloud migrationBackup and disaster recovery5.0★ (6)7450

034

ITRexSacramento · IT consulting · 100-249IT consultingAI consultingCloud migration4.9★ (14)7450

035

ITqueCampbell · MSP · 10-24Managed IT24 7 SupportDisaster Recovery5.0★ (22)7450

036

Sandler PartnersRedondo Beach · VAR and telecom · 100-249Cloud migrationManaged ServicesIT consulting5.0★ (2)7350

037

AdvancedLos Angeles · MSP · 10-24Backup and disaster recoveryCloud migrationCompliance5.0★ (87)730

038

E-SolutionsSan Jose · IT consulting · 250+Cloud migrationManaged ITData Analytics4.2★ (5)7375

039

Bay ComputingConcord · MSP · 10-24Managed ITHelp DeskNetwork management5.0★ (43)7325

040

CIO SolutionsFresno · MSP · 50-99Help DeskManaged ITCybersecurity4.5★ (8)7375

041

PC ProfessionalOakland · MSP · 50-99Managed ITCybersecurityCloud migration4.9★ (142)7325

042

ITECH SolutionsTempleton · MSP · 250+Managed ITCo-managed ITCloud migration4.7★ (17)730

043

Protected HarborBurbank · IT consulting · 50-99Managed ITCybersecurityCloud migration4.9★ (47)730

044

ClearscaleSan Francisco · IT consulting · 100-249AWS ConsultingApplication DevelopmentApplication Modernization5.0★ (1)7325

045

IT Support LACalabasas · MSP · 10-24Managed ITHelp DeskMicrosoft 3655.0★ (128)7225

046

Astute Business SolutionsDublin · IT consulting · 100-249Cloud migrationManaged ServicesCloud Advisory5.0★ (1)7275

047

BRITECITY - IT Services in Orange County, CAIrvine · MSP · 25-49Managed ITCybersecurityCloud migration5.0★ (85)720

048

CurvatureSanta Barbara · VAR and telecom · 250+Hardware MaintenanceGpu AI Accelerator SupportSoftware Support4.3★ (7)7225

049

TechnijianIrvine · MSSP · 25-49Managed ITCybersecurityMdr4.7★ (87)7225

050

eSudo Technology SolutionsSan Jose · MSP · 5-9Managed ITCybersecurityIT consulting4.9★ (42)7250

051

KPI PartnersOakland · IT consulting · 250+Data EngineeringBusiness IntelligenceCloud migration1.0★ (1)72100

052

Technology SourceSanta Ana · MSP · 50-99Cloud migrationCybersecurityCloud Computing5.0★ (2)72100

053

Langtech Systems ConsultingSan Francisco · MSP · 25-49Help DeskIT SupportCybersecurity4.8★ (19)71100

054

TLC Tech, Inc.Sacramento · MSP · 25-49Managed ITCo-managed ITIT consulting4.9★ (254)7125

055

HelixstormCosta Mesa · MSP · 25-49Managed ITProfessional ServicesBackup and disaster recovery5.0★ (23)7125

056

CorporateTechIrvine · MSP · 10-24Managed ITHelp DeskNetwork management4.8★ (22)7125

057

TrustedTechIrvine · MSP · 250+Microsoft 365Cloud migrationIT consulting4.7★ (299)7125

058

Generation IX TechnologiesCulver City · MSP · 25-49Managed ITHelp DeskCo-managed IT4.8★ (31)7150

059

NexInfo SolutionsIrvine · IT consulting · 250+Cloud migrationERP ImplementationManaged Services4.6★ (7)710

060

Datalink NetworksSan Diego · MSSP · 50-99Managed ITCybersecurityPenetration Testing5.0★ (1)71100

061

Digicom Technology SolutionsSanta Rosa · MSP · 10-24Co-managed ITCybersecurityManaged IT5.0★ (26)7150

062

Jade GlobalSan Jose · IT consulting · 250+ERP ModernizationCloud migrationManaged Services4.3★ (11)7025

063

Sonic SystemsVictorville · MSP · 10-24Managed ITHelp DeskNetwork management4.5★ (24)7025

064

ATECH MSPBakersfield · MSP · 5-9Managed ITIT consultingRemote Monitoring Maintenance4.9★ (51)7050

065

Integrated Telemanagement ServicesWestlake Village · VAR and telecom · 50-99Backup and disaster recoveryCloud migrationCo-managed IT4.6★ (47)7025

066

CCS Global TechPoway · IT consulting · 250+Cloud migrationCybersecurity4.4★ (83)700

067

Advanced Business InnovationsLos Angeles · MSP · 10-24Backup and disaster recoveryCloud migrationCybersecurity5.0★ (137)7050

068

Valley Techlogic IncAtwater · MSP · 10-24Managed ITHelp DeskBackup and disaster recovery4.9★ (46)7025

069

Estuate, Inc.Milpitas · IT consulting · 250+Cloud migrationCompliance4.1★ (12)7025

070

KMicro TechCosta Mesa · IT consulting · 50-99Security AI AssuranceData Security GovernanceModern Workplace4.4★ (7)7075

071

CaptainITRiverside · MSP · 10-24Managed ITCo-managed ITHelp Desk5.0★ (7)7075

072

AxelliantTorrance · IT consulting · 100-249Managed ITManaged NetworkManaged Cloud5.0★ (1)6950

073

AvantiicoSan Diego · IT consulting · 25-49Cloud migrationData MigrationDynamics 365 Implementation4.3★ (6)6975

Showing 73 of 586 · load moreMissing or misranked? Claim it ▸

Map

providers by city

Drawn from provider coordinates

What the data shows

measured 2026-10-27

52.6

Median MSP scoreof California providers

Publish a DMARC policyof California providers

30%

Claim 24/7 supportof California providers

Median headcountemployees

108 cities in California carry exactly one tracked provider.

** end of report **

Cities in California

top 12 of 120 · providers tracked

75Irvine

54Fremont

13Fresno

From our research

MSPSIG.WIRE

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

2026-10-29IT Companies in Louisiana: What the Listings Show

How many IT service providers are in California?

1,197 tracked as of 2026-10-27.

Which provider ranks highest in California?

Jones IT, by MSP score.

What is the median size of a provider here?

11 employees.

Listed in California?

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