Top Managed IT Companies in Phoenix

TSI Applications

US-Based Application Development & IT Services

✓ Verified Provider Est. 2001
San Tan Valley, AZ
1–9 employees
Founded 2001
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TSI Applications is a managed IT services provider based in San Tan Valley, AZ, operating since 2001. It focuses on Managed IT Services, Cybersecurity, Cloud Services, IT Help Desk & End-User Support. Compare it against other Phoenix managed IT providers, then request a quote.

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

About TSI Applications

TSI Applications has provided US-based Python, ColdFusion, and PHP development along with IT consulting, infrastructure/network support, and cybersecurity services since 2001.

Services Offered

🖥️
Managed IT Services
🔒
Cybersecurity
☁️
Cloud Services
🛟
IT Help Desk & End-User Support
🌐
Network Management
🧭
vCIO & IT Strategy

Why Choose TSI Applications

📍

Based in San Tan Valley

TSI Applications is headquartered in San Tan Valley, AZ, so San Tan Valley businesses get a local team for on-site work instead of a distant call center.

US-based developers working in client's time zone

US-based developers working in client's time zone

hourly and subscription pricing model for IT and dev

hourly and subscription pricing model for IT and dev services

Location

San Tan Valley, AZ

Certifications & Compliance

US-based developers working in client's time zone
hourly and subscription pricing model for IT and dev services

Frequently Asked Questions

Which IT services does TSI Applications provide?

TSI Applications delivers Managed IT Services, Cybersecurity, Cloud Services, IT Help Desk & End-User Support, Network Management, vCIO & IT Strategy to organizations across Phoenix, AZ.

What area does TSI Applications serve?

TSI Applications is based in San Tan Valley, AZ and supports businesses across Phoenix and the greater metro area.

When did TSI Applications start?

TSI Applications has been operating since 2001.

Is TSI Applications certified?

TSI Applications carries US-based developers working in client's time zone, hourly and subscription pricing model for IT and dev services.