MSPSIG.DIR · state · as of 2026-10-28

Managed service providers in California

593 managed service providers are tracked in California. Jones IT ranks highest by MSP score. Rated providers average 4.73 on Google.

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

Providers tracked593

Top rankedJones ITSan Francisco · MSP score 89

Rated providers average4.73★on Google · median score 50

Ranked by MSP score

top 123 of 593 shown · sort: score / best reviewed

Filtered: MSPs only · Network management · 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

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

003

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

004

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

005

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

006

XceptionalSan Diego · MSP · 50-99Managed ITCo-managed ITCybersecurity4.6★ (10)8075

007

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

008

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

009 $Infracore logo$ InfracoreSan Diego · MSP · 50-99Managed ITCybersecurityCloud migration5.0★ (14)7775

010

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

011

AlvakaIrvine · MSP · 50-99Vulnerability ManagementRansomware PreventionRansomware Recovery4.9★ (15)7575

012

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

013

eTop Technology, IncRedlands · MSP · 10-24Managed ITCo-managed ITCybersecurity4.8★ (23)75100

014

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

015

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

016

Kotman TechnologyFresno · MSP · 25-49Help DeskManaged ITNetwork management4.8★ (36)7475

017

Fusion Factor CorporationCarlsbad · MSP · 25-49Managed ITEmail ProtectionMicrosoft 3654.8★ (6)7350

018

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

019

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

020

One82, LLC.Los Gatos · MSP · 5-9Managed ITCybersecurityCompliance5.0★ (36)7325

021

Legend NetworkingLos Angeles · MSP · 25-49Managed ITCybersecurityNetwork management4.8★ (73)7225

022

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

023

Techmedics®Pasadena · MSP · 10-24Managed ITCo-managed ITIT consulting5.0★ (22)7250

024

FUSE3Fair Oaks · MSP · 25-49Managed ITCybersecurityBackup and disaster recovery5.0★ (382)7225

025

Mann ConsultingSan Francisco · MSP · 50-99Network managementHelp DeskBackup and disaster recovery4.7★ (29)7250

026

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

027

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

028

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

029

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

030

STG InfotechWest Hollywood · MSP · 25-49Managed ITHelp DeskBackup and disaster recovery5.0★ (103)7150

031

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

032

Alcala Consulting IncPasadena · MSP · 5-9Managed ITHelp DeskNetwork management5.0★ (19)7125

033

Umetech, Inc.Temecula · MSP · 5-9Managed ITCybersecurityNetwork management5.0★ (36)7025

034

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

035

Diamond ITBakersfield · MSP · 25-49Managed ITCo-managed ITFully Managed IT4.9★ (89)700

036

Alvarez Technology GroupSalinas · MSP · 25-49Managed ITCo-managed ITVoIP4.4★ (15)7050

037

TechcarecomputersLos Angeles · MSP · 5-9Managed ITNetwork managementNetwork Security4.8★ (50)70100

038

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

039

Mitec SolutionsVentura · MSP · 10-24IT SupportCybersecurityNetwork management4.9★ (56)6925

040

Alcott EnterprisesTorrance · MSP · 1-4Managed ITCo-managed ITHelp Desk5.0★ (70)6975

041

Turner TechtronicsBurbank · MSP · 50-99Managed ITCybersecurityCollaboration Conferencing5.0★ (54)690

042

We Solve ProblemsLos Angeles · MSP · 10-24Managed ITCybersecurityCompliance5.0★ (10)6950

043

BCT Consulting, IncFresno · MSP · 50-99Managed ITHelp DeskCybersecurity5.0★ (7)6925

044

Skyriver ITSan Diego · MSP · 25-49Managed ITCybersecurityIT consulting4.9★ (116)6925

045

Data Net Solutions GroupSan Diego · MSP · 25-49Managed ITCloud migrationHelp Desk5.0★ (6)680

046

IronOrbitAnaheim · MSP · 50-99Managed ITCloud migrationHelp Desk4.8★ (47)680

047

IntelecisFullerton · MSP · 10-24Managed ITHelp DeskCo-managed IT5.0★ (36)680

048

TechHeights - Business IT Services Orange CountyIrvine · MSP · 50-99Managed ITCybersecurityCloud migration4.7★ (0)6825

049

Quest InternationalIrvine · MSP · 250+Managed ITHelp DeskBackup and disaster recovery4.4★ (8)6825

050

TechXpressBakersfield · MSP · 10-24Managed ITCloud ServicesCybersecurity4.9★ (69)6850

051

BrenTechSan Diego · MSP · 25-49Managed ITNetwork managementRemote IT Support5.0★ (38)680

052

Tech Help Los AngelesLos Angeles · MSP · 1-4Managed ITHelp DeskRemote Support5.0★ (38)6775

053

Info TechITLa Mesa · MSP · 5-9Managed ITHelp DeskNetwork management4.8★ (46)6725

054

Network RightSan Francisco · MSP · 25-49Fractional ITCybersecurityIT consulting5.0★ (32)6725

055

IT AccuracyLos Angeles · MSP · 25-49Managed ITNetwork managementCybersecurity4.9★ (58)6725

056

Business PC Support - SacramentoElk Grove · MSP · 5-9Managed ITCybersecurityCo-managed IT5.0★ (1)6750

057

Computer ExpertsSaratoga · MSP · 25-49Managed ITIT consultingHelp Desk4.9★ (42)6625

058

REAL-TIME INFORMATION SERVICESFresno · MSP · 10-24Managed ITManaged CloudHelp Desk4.4★ (33)6625

059

San Diego Computer ConsultingSan Diego · MSP · 10-24Managed ITIT consultingCloud migration4.9★ (59)660

060

NETWORK TITANSan Diego · MSP · 5-9Co-managed ITCybersecurityCMMC Compliance4.9★ (34)660

061

TECHNIC BUSINESS SOLUTIONSIrvine · MSP · 10-24Managed ITCybersecurityEndpoint Protection4.5★ (2)66100

062

Ophtek LLCSan Jose · MSP · 5-9Managed ITCybersecurityBackup and disaster recovery5.0★ (23)6625

063

Obsidian ITRedding · MSP · 10-24Managed ITIT consultingTechnical Projects5.0★ (17)6650

064

C3 Systems & SecurityTorrance · MSP · 10-24Managed ITCybersecurityCloud Management4.9★ (64)6625

065

Eaton & AssociatesBurlingame · MSP · 50-99Managed ITCybersecurityCloud migration4.7★ (3)6625

066

Layer 3 ITWatsonville · MSP · 25-49Managed ITVoIPNetwork managementnot observed660

067

R&B CommunicationsGrass Valley · MSP · 10-24Managed ITHelp DeskNetwork management4.9★ (77)6650

068

CardonetLos Angeles · MSP · 100-249Managed ITIT SupportHelp Desknot observed660

069

AstreyaSan Jose · MSP · 250+Managed ITCloud migrationCloud Infrastructure3.9★ (23)6525

070

Affant Network ServicesCosta Mesa · MSP · 10-24Managed ITNetwork managementCybersecurity4.8★ (19)6525

071

Gravity IT SolutionsRocklin · MSP · 1-4Managed ITHelp DeskNetwork management5.0★ (16)6550

072

Wooden-SpoonSanta Rosa · MSP · 5-9Managed ITHelp DeskNetwork management5.0★ (23)6525

073

ATS CommunicationsConcord · MSP · 25-49Managed ITHelp DeskCybersecurity5.0★ (1)6525

074

Its CurrieModesto · MSP · 50-99Managed ITCo-managed ITCybersecurity4.8★ (39)6525

075

Network Thinking SolutionsWestlake Village · MSP · 10-24Managed ITHelp DeskCybersecurity5.0★ (11)6525

076

RedNight ConsultingAliso Viejo · MSP · 5-9Managed ITCloud migrationBackup and disaster recovery5.0★ (9)6525

077

IT Pro SourceLivermore · MSP · 5-9Managed ITHelp DeskCybersecurity5.0★ (13)640

078

Green Shield TechnologyOntario · MSP · 10-24Managed ITInfrastructure DesignNetwork management4.9★ (13)6450

079

Long Beach Computer Repair UpgradeLong Beach · MSP · 1-4Network managementServer SupportVirus Removal4.9★ (163)6475

080

smplsolutionsLake Forest · MSP · 10-24Managed ITCybersecurityBackup and disaster recovery5.0★ (22)640

081

Anchor PointSanta Barbara · MSP · 10-24Managed ITHelp DeskCybersecurity4.8★ (46)6425

082

PagodaSanta Cruz · MSP · 10-24Managed ITCybersecurityBackup and disaster recovery5.0★ (6)6425

083

IT TechProsSan Marcos · MSP · 10-24Managed ITCo-managed ITHelp Desk4.9★ (35)6425

084

IT Total CareFoster City · MSP · 5-9Managed ITCybersecurityHelp Desk4.9★ (85)640

085

Consiliant TechnologiesIrvine · MSP · 10-24Managed ITCloud ImplementationNetwork management4.6★ (11)6425

086

Excel Office ServicesLos Angeles · MSP · 10-24Managed PrintManaged ITUnified Communications5.0★ (23)640

087

Digital Dental SolutionsOrangevale · MSP · 5-9Managed ITHelp DeskBackup and disaster recovery4.7★ (35)6450

088

Fourth DimensionCampbell · MSP · 250+Managed ITManaged SecurityCloud migrationnot observed630

089

Left Click HereMission Viejo · MSP · 250+Help DeskNetwork managementBackup and disaster recoverynot observed6325

090

Redfire Technology ServicesUpland · MSP · 5-9Managed ITCybersecurityCloud migration5.0★ (3)6375

091

Teal NetworksWoodland · MSP · 5-9Managed ITCybersecurityBackup and disaster recovery5.0★ (6)6350

092

Digital TelecommunicationsSanta Clarita · MSP · 50-99Business PhonesManaged ITStructured Cabling5.0★ (2)630

093

DIGITALSYSTEM TECHNOLOGYCity of Industry · MSP · 25-49Managed ITCloud migrationCybersecurity5.0★ (4)6350

094

Infinity TechnologiesLake Forest · MSP · 50-99Managed ITHelp DeskBackup and disaster recovery1.0★ (1)6350

095

Rely ON ITLos Altos · MSP · 5-9Managed ITIT consultingCybersecurity5.0★ (10)6325

096

ZZ ComputerLos Angeles · MSP · 10-24Managed ITCybersecurityCloud migration5.0★ (63)6225

097

ARRC TechnologyBakersfield · MSP · 50-99Managed ITCybersecurityManaged Email3.9★ (25)6225

098

RiverfySanta Clara · MSP · 5-9Managed ITHelp DeskCybersecurity5.0★ (49)6225

099

Crown EnterprisesStockton · MSP · 100-249Managed ITCybersecurityHelp Desk5.0★ (9)620

100

IslandSan Fernando · MSP · 10-24IT SupportManaged ITHelp Desknot observed620

101

ProgentSan Jose · MSP · 50-99IT consultingManaged ITHelp Desk1.0★ (1)620

102

CalComm SystemsRedlands · MSP · 1-4VoIPManaged ITHelp Desk5.0★ (11)6225

103

LA GeeksBeverly Hills · MSP · 25-49Managed ITCybersecurityPenetration Testing5.0★ (32)620

104

Techifornia IT ServicesIrvine · MSP · 5-9Managed ITCybersecurityBackup and disaster recovery5.0★ (6)620

105

Precision IT ConsultingConcord · MSP · 10-24Managed ITIT consultingCybersecurity4.9★ (18)620

106

Infinite Computing TechnologiesValencia · MSP · 10-24Help DeskComplianceNetwork management5.0★ (9)610

107

Masra TechLake Forest · MSP · 5-9IT consultingNetwork managementSecurity4.9★ (45)6150

108

TOGOONLINE INC.Westlake Village · MSP · 5-9Managed ITNetwork managementHelp Desk5.0★ (10)610

109

Altura Communication SolutionsFullerton · MSP · 100-249Managed ITHelp DeskPatch Management5.0★ (1)6125

110

TechWorks Consulting LLCCorona · MSP · 1-4Managed ITHelp DeskProactive Maintenance5.0★ (11)6125

111

PCGSan Diego · MSP · 10-24Managed ITCybersecurityCompliancenot observed6125

112

CalteccomputersSan Luis Obispo · MSP · 1-4VoIPManaged ITNetwork management4.8★ (59)6125

113

NIC PartnersRancho Cucamonga · MSP · 50-99Managed ITManaged Security ServicesCybersecurity3.4★ (5)6150

114

DatelSan Diego · MSP · 25-49Network managementCloud ServicesBackup and disaster recovery4.6★ (25)610

115

Numa NetworksSanta Ana · MSP · 10-24Managed ITCo-managed ITNetwork management4.7★ (19)600

116

724ItSan Diego · MSP · 5-9Managed ITCybersecurityMonitoring5.0★ (10)6025

117

The Redesign GroupEl Segundo · MSP · 250+Managed IT ServicesManaged Security ServicesNetwork management4.3★ (6)600

118

Light SpeedMartinez · MSP · 10-24Managed ITManaged IT SecurityCybersecurity5.0★ (30)600

119

Hybridge Inc.San Carlos · MSP · 25-49Managed ITNetwork managementHelp Desk4.2★ (5)600

120

Prestwood IT SolutionsCitrus Heights · MSP · 10-24Managed ITMicrosoft 365Backup and disaster recovery4.6★ (28)600

121

WaterlooIT IncWaterloo · MSP · 10-24Help DeskManaged ITCybersecurity4.6★ (35)6050

122

Ryda Tech ITSan Francisco · MSP · 1-4IT SupportCloud migrationIT consulting5.0★ (9)600

123

OmegaccPalm Springs · MSP · 5-9Help DeskManaged ITCybersecurity5.0★ (20)590

Showing 123 of 593 · load moreMissing or misranked? Claim it ▸

Map

providers by city

Drawn from provider coordinates

What the data shows

measured 2026-10-28

50.1

Median MSP scoreof California providers

Publish a DMARC policyof California providers

49%

Claim 24/7 supportof California providers

Median headcountemployees

121 cities in California carry exactly one tracked provider.

** end of report **

Cities in California

top 12 of 120 · providers tracked

43Irvine

15Fresno

From our research

MSPSIG.WIRE

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

2026-10-30IT Companies in Kansas: What the Listings Show

How many managed service providers are in California?

593 tracked as of 2026-10-28.

Which provider ranks highest in California?

Jones IT, by MSP score.

What is the median size of a provider here?

6 employees.

Listed in California?

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