Coltarus Halo has been keeping Corpus Christi businesses running for 15 years. We provide managed IT, VoIP phone systems, network security, and IT systems engineering to small and mid-sized businesses across the Coastal Bend — the kind of hands-on, local support you can’t get from a national call center reading from a script.
Most businesses only think about IT when something breaks. We’d rather you never notice we’re there. That means proactive monitoring instead of waiting for a crash, regular maintenance instead of letting small issues pile up, and a help desk that answers when you call — not a ticket queue you wait on for a callback. Whether it’s a single office or a growing team across multiple locations, we build IT support around how your business actually operates in Corpus Christi and Nueces County, not a one-size-fits-all package.
A flat-rate managed IT plan means you know what you’re paying every month, and you’re not stuck choosing between “call for help and get billed by the hour” or “let small problems turn into big ones.” We monitor your systems continuously, so most issues get caught and fixed before you ever notice something was wrong.
Reliable phones matter more than most businesses realize — until the day they don’t work. We set up, support, and maintain VoIP phone systems for Corpus Christi businesses, so your team stays connected with clients and each other without worrying about the technology behind it. From initial setup and number porting to ongoing support when something needs adjusting, we handle the parts of a phone system that shouldn’t be your problem to troubleshoot.
Cybersecurity doesn’t have to mean enterprise-grade complexity you’re paying for and never using. We build network security — firewalls, endpoint protection, ongoing monitoring — sized for a small or mid-sized Corpus Christi business, with a real incident-response plan behind it, not just a policy document sitting in a drawer. If something does go wrong, you want a team that already knows your network, not one meeting it for the first time during an emergency.
A backup that’s never been tested isn’t really a backup — it’s a guess. We build automated, monitored backup systems and periodically test that they actually restore, so a hardware failure, a ransomware incident, or a simple mistake doesn’t mean losing years of business data. [Learn more about our data backup and recovery services →]
We work closely with accounting and financial firms who handle sensitive client data every day — tax records, financial statements, and personally identifiable information that come with real regulatory obligations under rules like the FTC Safeguards Rule and IRS Publication 4557. Our IT support is built around what firms like yours actually need to stay secure and meet those requirements, not generic “we take security seriously” language. [Learn more about our IT support for accounting firms →]
We’re based in Corpus Christi and serve businesses throughout the region — not just the city itself. When a server needs a hands-on fix or a new workstation needs to be ready before tomorrow morning, a local team gets there. [See our full service area →]
Call (361) 444-2564 or request a free IT assessment, and we’ll tell you plainly where your current setup stands — no pressure, no jargon, just a straight answer.
SOME OF THE INDUSTRIES WE KNOW:
With our focus on your technology needs, you can focus on your business demands. You have increased productivity costing less with our flat rate IT and managed services.
With comprehensive technology, we help you smoothly transition your company into a modernized, competitive business environment.
We have 24 hours, 7 days a week, 365 days a year local tech support service team. Get the technical support you need when you need it most.
We focus on your technology needs, you focus on your business demands.

