Top Managed IT Companies in Los Angeles

CIS

Corporate IT solutions for IT networks of the future

✓ Verified Provider Est. 2008
San Clemente, CA
250+ employees
Founded 2008
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CIS is a managed IT services provider based in San Clemente, CA, operating since 2008. It focuses on Managed IT Services, Network Management, IT Consulting. Compare it against other Los Angeles managed IT providers, then request a quote.

Vetted by the Best IT MSP editorial team · Last updated June 2026

About CIS

The domain cissdm.com redirects to cis.us; CIS (rebranded from CISSDM) is a single-source IT network solutions provider offering field services, managed services, advisory, professional services, and aggregation to enterprise IT teams.

Services Offered

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Managed IT Services
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Network Management
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IT Consulting

Why Choose CIS

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Based in San Clemente

CIS (formerly CISSDM) is headquartered in San Clemente, CA, so San Clemente businesses get a local team for on-site work instead of a distant call center.

Ranked on CRN Fast Growth 150 (2021)

Ranked on CRN Fast Growth 150 (2021)

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Ranked #131 on Channel Futures MSP 501

Ranked #131 on Channel Futures MSP 501

Location

San Clemente, CA

Certifications & Compliance

Ranked on CRN Fast Growth 150 (2021)
Ranked #131 on Channel Futures MSP 501

Frequently Asked Questions

Which IT services does CIS provide?

CIS delivers Managed IT Services, Network Management, IT Consulting to organizations across Los Angeles, CA.

What area does CIS serve?

CIS is based in San Clemente, CA and supports businesses across Los Angeles and the greater metro area.

When did CIS start?

CIS has been operating since 2008.

Is CIS certified?

CIS carries Ranked on CRN Fast Growth 150 (2021), Ranked #131 on Channel Futures MSP 501.