Top Managed IT Companies in Washington

ITAdOn IT Solutions

Full-stack managed IT and cybersecurity in DC.

✓ Verified Provider ⭐ 5.0/5 Stars Est. 2020
Washington, DC
10–49 employees
Founded 2020
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ITAdOn IT Solutions is a managed IT services provider based in Washington, DC, operating since 2020. Across 33 verified Google reviews it averages 5.0 out of 5, a public track record you can weigh during diligence. It focuses on Fully Managed IT Support, Proactive Monitoring, Cybersecurity Solutions, Data Backup & Recovery. Compare it against other Washington managed IT providers, then request a quote.

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

About ITAdOn IT Solutions

ITAdOn IT Solutions reviews paint a detailed picture: a 5.0 average across 33 Google ratings, with clients describing complete, hands-on engagements. Brandon Thordarson credited the team, led by Brian, with standing up the entire IT infrastructure for a new DC restaurant, and Catherine Cruz said her Microsoft 365 cloud migration and file-server cleanup were smooth and clearly explained.

Reviewers return often to a help desk that is consistently responsive and resolves both simple and complex tickets. Geraldine Domugho called the team dependable and accessible, and Dan Kohler, writing from an enterprise IT background, said they cover everything from cybersecurity and infrastructure to monitoring with strong response times.

Operating since 2020, ITAdOn delivers fully managed it support, proactive monitoring, cybersecurity, data backup and recovery, cloud services, and network management, with Microsoft, Cisco, Sophos, and Dell partnerships. The firm serves healthcare, accounting and finance, law firms, government, and real estate clients across the area.

Services Offered

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Fully Managed IT Support
📊
Proactive Monitoring
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Cybersecurity Solutions
💾
Data Backup & Recovery
☁️
Cloud Services
🌐
Network Management

Industries Served

🏥 Healthcare
💰 Accounting & Finance
⚖️ Law Firms
🏛️ Government
🏢 Real Estate

Why Choose ITAdOn IT Solutions

33 Reviews, All 5 Stars

ITAdOn's 33 Google reviews average 5.0 and repeatedly highlight responsive support, clear communication, and complete ticket resolution.

📍

Hands-On Local Delivery

Clients describe on-site infrastructure builds and migrations across DC, from a new restaurant fit-out to file-server and Microsoft 365 cleanups.

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Vendor-Backed Security

Microsoft, Cisco, Sophos, and Dell partnerships support cybersecurity, data backup, and network management run as a monitored, proactive service.

Offices

ITAdOn IT Solutions lists 6 offices. Choose one to see it on the map.

Certifications & Compliance

Microsoft Partner
Cisco Partner
Sophos Global Partner
Dell Technologies Partner

Frequently Asked Questions

What do ITAdOn IT Solutions reviews say?

Across 33 verified Google reviews, ITAdOn IT Solutions averages 5.0 out of 5. Weigh that public track record alongside a direct quote.

Which IT services does ITAdOn IT Solutions provide?

ITAdOn IT Solutions delivers Fully Managed IT Support, Proactive Monitoring, Cybersecurity Solutions, Data Backup & Recovery, Cloud Services, Network Management to organizations across Washington, DC.

What area does ITAdOn IT Solutions serve?

ITAdOn IT Solutions is based in Washington, DC and supports businesses across Washington and the greater metro area.

When did ITAdOn IT Solutions start?

ITAdOn IT Solutions has been operating since 2020.

Is ITAdOn IT Solutions certified?

ITAdOn IT Solutions carries Microsoft Partner, Cisco Partner, Sophos Global Partner, Dell Technologies Partner.