DS-US-CA · Regional listRev. 9 Nov 2026

MSPs in California

1148 managed service providers with their HQ in California, most-documented first. Each links to a spec sheet with sources. Filter this list by stack, industry, size or 24/7 support.

Cities

1,148MSPs · page 40

Outside Open

Santa Barbara, California · US

Support
–
Size
–
Facts
13
Packet Fusion logo

Packet Fusion

Pleasanton, California · US

Support
24/7
Size
–
Facts
13

RingCentral

Plexus IT

Calabasas, California · US

Support
24/7
Size
–
Facts
13

CrowdStrikeKaseya (product not named)

Plus One IT logo

Plus One IT

Hercules, California · US

Support
–
Size
–
Facts
13
SecLex logo

SecLex

Riverside, California · US

Support
–
Size
11–50
Facts
13

Bitdefender

Sequoia Networks logo

Sequoia Networks

San Jose, California · US

Support
–
Size
–
Facts
13

Freshservice / Freshdesk

Sterling Networks logo

Sterling Networks

Westlake Village, California · US

Support
–
Size
–
Facts
13

ScreenConnect

TiSiTech

Glendale, California · US

Support
–
Size
–
Facts
13

RingCentralDatto (product not named)

01 LUX Tech logo

01 LUX Tech

Los Angeles, California · US

Support
–
Size
–
Facts
12
3in1 Technologies logo

3in1 Technologies

Folsom, California · US

Support
Business hours
Size
–
Facts
12

Ubiquiti UniFi