Top Managed IT Companies in Mount Pleasant

NetTec NSI

A two-decade Microsoft Solutions Partner and Cloud Solution Provider led by Principal Joe Rainero, naming Mount Pleasant among the markets it serves, with Azure Virtual Desktop, a business help desk, RMM and Kaseya Datto Silver backup for construction, CPA, faith and manufacturing clients for Mount Pleasant businesses.

✓ Verified Provider ⭐ 5.0/5 Stars
Charleston, SC (King Street, serving Mount Pleasant)
10–49 employees
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NetTec NSI is a managed IT services provider based in Charleston, SC (King Street, serving Mount Pleasant). Across 14 verified Google reviews it averages 5.0 out of 5, a public track record you can weigh during diligence. It focuses on Managed IT Services, IT Help Desk & End-User Support, Cloud Services & Migration, Microsoft 365 & Cloud. Compare it against other Mount Pleasant managed IT providers, then request a quote.

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

About NetTec NSI

NetTec NSI is a managed IT services provider based in Charleston, SC, delivering managed IT, help desk and cloud to small and mid-size businesses across the Charleston Lowcountry. The firm supports both fully managed IT and co-managed IT for companies that already have internal staff.

It holds a 5-star rating across 14 verified Google reviews. Mount Pleasant's economy runs on professional, scientific and technical services, health care around Novant Health East Cooper Medical Center, and port logistics at SC Ports' Wando Welch Terminal; NetTec NSI differentiates through a two-decade Microsoft Solutions Partner and Cloud Solution Provider led by Principal Joe Rainero, naming Mount Pleasant among the markets it serves, with Azure Virtual Desktop, a business help desk, RMM and Kaseya Datto Silver backup for construction, CPA, faith and manufacturing clients.

Core services span managed IT, cybersecurity and threat protection, Microsoft 365 and cloud, network management, backup and disaster recovery, and IT strategy. Typical clients are Mount Pleasant-area organizations in construction & real estate, professional services, manufacturing & distribution and education that want 24/7 IT support and predictable monthly costs from a single accountable partner.

Services Offered

🖥️
Managed IT Services
🛟
IT Help Desk & End-User Support
☁️
Cloud Services & Migration
☁️
Microsoft 365 & Cloud
🔒
Cybersecurity & Threat Protection
🌐
Network Management
💾
Backup & Business Continuity

Industries Served

🏗️ Construction & Real Estate
📋 Professional Services
🏭 Manufacturing & Distribution
🎓 Education

Why Choose NetTec NSI

⭐

5/5 Across 14 Google Reviews

A 5-star Google rating across 14 verified reviews is a strong, public signal of consistent delivery. For a Mount Pleasant business doing diligence, that track record matters more than marketing claims.

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Local Mount Pleasant Presence

Based in the Charleston, SC area, NetTec NSI can dispatch on-site across Mount Pleasant and the wider the Charleston Lowcountry market while resolving most issues remotely.

🛡️

Proactive, Security-First Managed IT

NetTec NSI differentiates through a two-decade Microsoft Solutions Partner and Cloud Solution Provider led by Principal Joe Rainero, naming Mount Pleasant among the markets it serves, with Azure Virtual Desktop, a business help desk, RMM and Kaseya Datto Silver backup for construction, CPA, faith and manufacturing clients. Engagements cover 24/7 monitoring, help desk support, backup and disaster recovery, and IT strategy as a predictable monthly service.

Offices

NetTec NSI lists 3 offices. Choose one to see it on the map.

Certifications & Compliance

✓
Microsoft Partner

Frequently Asked Questions

What do NetTec NSI reviews say?

Across 14 verified Google reviews, NetTec NSI averages 5.0 out of 5. Weigh that public track record alongside a direct quote.

Which IT services does NetTec NSI provide?

NetTec NSI delivers Managed IT Services, IT Help Desk & End-User Support, Cloud Services & Migration, Microsoft 365 & Cloud, Cybersecurity & Threat Protection, Network Management to organizations across Mount Pleasant, SC.

What area does NetTec NSI serve?

NetTec NSI is based in Charleston, SC (King Street, serving Mount Pleasant) and supports businesses across Mount Pleasant and the greater metro area.

Is NetTec NSI certified?

NetTec NSI carries Microsoft Partner.