Top Managed IT Companies in Baltimore

Alliance InfoSystems

Empowering your business by Bringing IT Together

✓ Verified Provider ⭐ 4.9/5 Stars Est. 2004
Cockeysville, MD
10–49 employees
Founded 2004
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Alliance InfoSystems is a managed IT services provider based in Cockeysville, MD, operating since 2004. Across 36 verified Google reviews it averages 4.9 out of 5, a public track record you can weigh during diligence. It focuses on Managed IT Services, Cybersecurity, Cloud Services, Backup & Business Continuity. Compare it against other Baltimore managed IT providers, then request a quote.

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

About Alliance InfoSystems

Founded in 2004, Alliance InfoSystems provides information technology management and security services to businesses across the United States, based in Maryland, offering managed IT, cloud, backup/DR, and managed security services.

Services Offered

🖥️
Managed IT Services
🔒
Cybersecurity
☁️
Cloud Services
💾
Backup & Business Continuity
🌐
Network Management
🤝
Co-Managed IT

Why Choose Alliance InfoSystems

4.9/5 From 36 Google Reviews

With 36 reviews averaging 4.9, Alliance InfoSystems has a checkable public track record rather than marketing claims alone.

📍

Based in Cockeysville

Alliance InfoSystems is headquartered in Cockeysville, MD, so Cockeysville businesses get a local team for on-site work instead of a distant call center.

20+ years experience

20+ years experience

🌐

Guardian Network Protection Service (GNPS)

Guardian Network Protection Service (GNPS)

Location

Cockeysville, MD

Certifications & Compliance

Barracuda Networks
Microsoft
CompTIA
Lenovo
HP
Dell Technologies

Frequently Asked Questions

What do Alliance InfoSystems reviews say?

Across 36 verified Google reviews, Alliance InfoSystems averages 4.9 out of 5. Weigh that public track record alongside a direct quote.

Which IT services does Alliance InfoSystems provide?

Alliance InfoSystems delivers Managed IT Services, Cybersecurity, Cloud Services, Backup & Business Continuity, Network Management, Co-Managed IT to organizations across Baltimore, MD.

What area does Alliance InfoSystems serve?

Alliance InfoSystems is based in Cockeysville, MD and supports businesses across Baltimore and the greater metro area.

When did Alliance InfoSystems start?

Alliance InfoSystems has been operating since 2004.

Is Alliance InfoSystems certified?

Alliance InfoSystems carries Barracuda Networks, Microsoft, CompTIA, Lenovo, HP, Dell Technologies.