Top Managed IT Companies in San Clemente

CIS

San Clemente headquarters, 115-plus staff and a Channel Futures MSP 501 ranking.

✓ Verified Provider ⭐ 3.6/5 Stars Est. 2008
San Clemente, CA (headquarters, 1023 Calle Sombra)
50–249 employees
Founded 2008
Visit Website

CIS is a managed IT services provider based in San Clemente, CA (headquarters, 1023 Calle Sombra), operating since 2008. Across 7 verified Google reviews it averages 3.6 out of 5, a public track record you can weigh during diligence. It focuses on Managed IT Services, Network Management, IT Strategy & vCIO. Compare it against other San Clemente managed IT providers, then request a quote.

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

About CIS

CIS is a managed IT services provider based in San Clemente, CA, delivering managed IT, network management and vCIO strategy to small and mid-size businesses across south Orange County. The firm supports both fully managed IT and co-managed IT for companies that already have internal staff.

It holds a 3.6-star rating across 7 verified Google reviews. San Clemente's economy runs on professional services, manufacturing and medical devices, with Capistrano Unified School District, ICU Medical and Glaukos the largest employers and most IT providers serving the city from Mission Viejo, Rancho Santa Margarita or Irvine; CIS differentiates through the largest IT provider headquartered in San Clemente, founded in 2008 at 1023 Calle Sombra Unit B, stating 115 or more employees and 11 engineering certifications, ranked 131 on the Channel Futures MSP 501 and 129 on the 2021 CRN Fast Growth 150, listed on Google under its former name CISSDM before the 2023 rebrand, and selling field services, managed services, advisory services, professional services and technology aggregation as a single source combining in-house network work with third-party platforms.

Core services span managed IT, cybersecurity and threat protection, cloud services, network management, backup and disaster recovery, and IT strategy. Typical clients are San Clemente-area organizations in professional services and healthcare & medical that want 24/7 IT support and predictable monthly costs from a single accountable partner.

Services Offered

🖥️
Managed IT Services
🌐
Network Management
🎯
IT Strategy & vCIO

Industries Served

📋 Professional Services
💊 Healthcare & Medical

Why Choose CIS

⭐

3.6/5 Across 7 Google Reviews

A 3.6-star Google rating across 7 verified reviews is a strong, public signal of consistent delivery. For a San Clemente business doing diligence, that track record matters more than marketing claims.

📍

Local San Clemente Presence

Based in the San Clemente, CA area, CIS can dispatch on-site across San Clemente and the wider south Orange County market while resolving most issues remotely.

🛡️

Proactive, Security-First Managed IT

CIS differentiates through the largest IT provider headquartered in San Clemente, founded in 2008 at 1023 Calle Sombra Unit B, stating 115 or more employees and 11 engineering certifications, ranked 131 on the Channel Futures MSP 501 and 129 on the 2021 CRN Fast Growth 150, listed on Google under its former name CISSDM before the 2023 rebrand, and selling field services, managed services, advisory services, professional services and technology aggregation as a single source combining in-house network work with third-party platforms. Engagements cover 24/7 monitoring, help desk support, backup and disaster recovery, and IT strategy as a predictable monthly service.

Offices

CIS lists 2 offices. Choose one to see it on the map.

Certifications & Compliance

✓
Managed IT Services
✓
Cybersecurity
✓
Cloud & Microsoft 365
✓
Backup & Recovery

Frequently Asked Questions

What do CIS reviews say?

Across 7 verified Google reviews, CIS averages 3.6 out of 5. Weigh that public track record alongside a direct quote.

Which IT services does CIS provide?

CIS delivers Managed IT Services, Network Management, IT Strategy & vCIO to organizations across San Clemente, CA.

What area does CIS serve?

CIS is based in San Clemente, CA (headquarters, 1023 Calle Sombra) and supports businesses across San Clemente and the greater metro area.

When did CIS start?

CIS has been operating since 2008.

Is CIS certified?

CIS carries Managed IT Services, Cybersecurity, Cloud & Microsoft 365, Backup & Recovery.