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San Diego County

Managed IT services in San Diego

Key MSP is a San Diego–based managed service provider (MSP) supporting small and mid-sized businesses across the city — from Downtown high-rises to the tech and life-science firms along the I-15 and Sorrento Valley corridors.

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San Diego's economy runs on defense, biotech, tourism, healthcare and a deep bench of professional-services firms, and each has its own IT and compliance realities. We support offices in the urban core, Kearny Mesa and Mission Valley as well as the R&D companies out toward UTC and Sorrento Valley, tailoring security and support to how each business actually operates.

We regularly support finance, legal, healthcare and professional-services teams across San Diego with compliance-aware, flat-rate IT.

What we do

Your full IT stack, supported locally in San Diego

Managed IT Support 24/7 monitoring, proactive maintenance, and an unlimited helpdesk that picks up the phone — powered by Syncro RMM. Managed Cybersecurity Endpoint protection, monitoring and response built on SentinelOne, plus email security, MFA and employee training. Cloud & Email Microsoft 365 and hosted Exchange — migrations, licensing, security and day-to-day management without the headaches. Managed Networks Business networks designed, deployed and monitored 24/7 on UniFi — fast Wi-Fi, secure VLANs, zero guesswork. Physical Security UniFi cameras, door access and environmental sensors — video surveillance, mobile entry, and leak, smoke and temperature alerts, monitored 24/7. Business Phones Managed VoIP on RingCentral — cloud phones, video meetings and messaging, implemented and supported locally by a team you can reach. AI Enablement Deploy Claude, Microsoft Copilot and ChatGPT securely on your Microsoft 365 tenant — admin consent, scoped permissions and audit logging.
Why San Diego businesses choose us
Flat monthly pricing One predictable fee. No surprise invoices, no nickel-and-diming.
Local & human San Diego–based team. No call centers, no offshore handoffs.
No onboarding fees Get started for $0. We earn your business every month.
Up and running in days Most clients are fully onboarded within days, not weeks.

Areas we serve in and around San Diego: Downtown & Gaslamp · Sorrento Valley · Kearny Mesa · Mission Valley · UTC · Point Loma. Most issues we resolve remotely in minutes; when hands-on help is needed, our local technicians come to you. Get in touch →

Nearby areas

We also serve

La Jolla
San Diego County
Poway
San Diego County
El Cajon
San Diego County
Chula Vista
San Diego County
All service areas
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