Managed IT Services in San Antonio, TX
NetSys is the IT company behind the whole environment for San Antonio offices, from a defense subcontractor near Port San Antonio to a Medical Center practice or an insurance agency in Stone Oak. We run the help desk, ThreatDown security, Microsoft 365, backups, firewalls and every technology vendor remotely from Brooklyn, for a per-user monthly fee on a month-to-month agreement.
The short answer
NetSys provides managed IT services to San Antonio businesses as one IT company responsible for the whole environment: NinjaOne monitoring and patching, ThreatDown managed detection and response, Microsoft 365 and Intune administration, Datto or Veeam backups with test restores, firewall management and the vendors behind your circuits and software. Everything is delivered remotely and through the cloud from our Brooklyn office, and NetSys does not send engineers on site in San Antonio. Engineers staff the help desk from 3 a.m. to 10 p.m. Central every day, while monitoring and emergency response never stop. The fee is per user per month, set after an assessment.
Service information by The NetSys Group. Our editorial standards.
How managed IT is delivered in San Antonio
All of the work happens over the network. Our engineers in Brooklyn, one hour ahead of San Antonio, patch and watch servers and workstations through NinjaOne, administer Microsoft 365, Intune and Entra ID directly, and run Cisco Meraki or Fortinet firewalls from their cloud consoles. NetSys has no staff in Texas and nobody travels to client offices there, so we build the environment to be run from a distance. Laptops are registered in Windows Autopilot before the supplier ships them, switches and access points arrive with their settings loaded, and IT Glue holds a copy of every configuration, so a dead unit is swapped for an identical build. When something has to be mounted or cabled, your office manager or the low-voltage contractor you already use does the physical part while our engineer checks the result on the call. Monitoring runs 24/7 from Brooklyn, and so does emergency service. Our staffed help-desk hours are 4 a.m. to 11 p.m. Eastern time (3 a.m. to 10 p.m. Central), seven days a week. The proposal states severe-incident escalation, authorized remediation and any other after-hours work.
What one IT company covers for a San Antonio business
San Antonio's economy is unusually mixed, and an IT provider here has to be fluent in all of it. Port San Antonio, the former Kelly Field, now holds more than 80 companies and about 19,000 people working in aerospace, defense and cybersecurity, many of them subcontractors whose federal work brings controlled unclassified information into ordinary offices. The Medical Center around Floyd Curl and Medical Drive is lined with physician groups, imaging centers and specialty clinics. Insurance and financial firms fill offices on the Northwest Side and in Stone Oak, suppliers work the South Side near Toyota's Tundra and Sequoia plant, and Downtown and the Pearl hold law firms, agencies and hospitality groups. One agreement covers what they all share: the help desk, devices, identity, email, security, backups, the network and every vendor call.
Circuits, software and the vendors we manage for you
Many of the outages that reach a San Antonio help desk start with someone else's product: a Spectrum or AT&T circuit that drops, a practice-management or ERP update that breaks a workstation, a phone system that stops ringing. Managed IT means we own those conversations. We keep the account numbers, contracts and support contacts in IT Glue, open the ticket with the carrier or software company, send them the logs and stay on it until it is closed. Downtown and Medical Center buildings usually offer a choice of carriers, while many offices in Stone Oak and around Port San Antonio run on a single cable circuit, so we price a second path, such as AT&T Business Fiber, Google Fiber or a cellular link, where the business cannot afford a dark afternoon. Renewals, warranty dates and license counts go on a calendar your account manager reviews with you each quarter.
Remote onboarding for a San Antonio office, week by week
Week one is discovery. An engineer meets your office manager or controller on Teams, installs the NinjaOne agent on every computer remotely, and inventories accounts, licenses, circuits, printers and vendors, moving every shared password into Keeper as it turns up. Week two ends with a written plan and costs; nothing changes until you approve it. Weeks three and four are the cutover, scheduled around month-end close or a practice's clinic hours: ThreatDown replaces the old antivirus, every account gets multifactor sign-in under Conditional Access, Barracuda starts filtering mail, a test restore proves the backups, and the outgoing provider's access is removed. If a firewall needs replacing, it ships configured and your contractor plugs it in during the agreed window. Staff notice a new sign-in prompt and one support number. After day 30, your account manager books the first quarterly review.
Texas privacy and security rules for San Antonio firms
Three Texas laws come up most in San Antonio discovery calls. The Texas Data Privacy and Security Act, Business and Commerce Code chapter 541, reaches companies that do business in Texas and process personal data unless they are small businesses under the federal SBA definition, and it requires reasonable administrative, technical and physical data security practices. The Texas Medical Records Privacy Act, chapter 181 of the Health and Safety Code as amended by HB 300, defines a covered entity far more broadly than HIPAA, reaching any business that comes into possession of protected health information, and requires staff training within 90 days of hire with a signed statement kept for six years. Section 521.053 sets breach notice to affected people within 60 days and to the Attorney General within 30 days when 250 or more Texans are involved. We supply the evidence: inventories, sign-in logs, training records and restore tests. This is general information, not legal advice.
Managed IT Services in San Antonio: what NetSys delivers
Support that answers
- Help desk by phone, email and Teams with engineers on the line, an immediate response from your dedicated engineer when something severe happens, and everything else worked by severity
- Remote monitoring and management through NinjaOne on every endpoint and server, 24 hours a day
The security stack, included
- ThreatDown MDR and EDR on every workstation, laptop and server, monitored around the clock
- Entra ID Conditional Access, multifactor authentication and Microsoft Defender for Business across the tenant, with legacy authentication switched off
Continuity and planning
- Immutable backups for servers and for Microsoft 365 itself, tested by restoring real data on a schedule
- Intune, Windows Autopilot and Keeper password management rolled out as standard, so devices and credentials stop being ad hoc
Law office: Microsoft 365 with layered security and cloud-to-cloud backup
A 25-attorney firm in the greater New York metro was losing unbillable hours to an outdated file server and an email server that needed weekly attention. NetSys mapped the firm's matters and document workflows first, moved email to Exchange Online and documents to SharePoint and OneDrive in a matter-based structure over a weekend cut-over, layered anti-phishing protection, DNS filtering, multifactor authentication and endpoint protection across attorney devices, and set independent cloud-to-cloud backup of the whole tenant. The firm reported 82% fewer IT support incidents per month within two quarters and about 3.5 hours per attorney per week recovered from IT friction.
Managed IT services work for other clients
- Auto dealers
Independent automotive dealership group
IT support across 5 dealerships, management of 95 computers, email security, and software license consolidation.
Client names are withheld. These examples were chosen for the work involved, not for where the client is, so none is presented as a San Antonio client.
What managed IT costs in San Antonio
Managed IT is priced per user per month for a fully managed agreement, and the number moves with four things more than with headcount: how many servers you run, whether you need after-hours coverage beyond monitoring, how much compliance documentation you carry, and whether we are co-managing alongside an internal person or running everything. We quote from an assessment, not a phone call, and the agreement runs month to month. What belongs in the monthly fee versus what is billed separately is set out on our managed IT pricing page.
Who this fits, and who it does not
Best fit: 10 to 75 employees, one or two offices plus remote staff, already on Microsoft 365 or ready to move there, and either no internal IT or one person who is underwater.
Read next
Industry pages: IT for Government Contractors · IT for Healthcare
Terms used on this page: Co-Managed IT · Managed Service Provider (MSP) · Remote Monitoring and Management (RMM)
Guides: the questions to ask before signing with an MSP · what managed IT costs per user in 2026
Related pages
Read the full Managed IT Services service page. See everything NetSys delivers in Texas.
Also in San Antonio: IT Consulting · IT Support · Cybersecurity
Industry pages for San Antonio: IT Support for Professional Services in San Antonio, TX
Managed IT Services elsewhere: Dallas · Houston · Austin · Fort Worth · Plano · Arlington, Texas
Related services: Co-Managed IT · Managed IT Pricing & Scope · Switching Managed IT Providers · Outsourced IT Help Desk
Managed IT Services in San Antonio: FAQs
Is NetSys an IT company that supports San Antonio businesses?
Yes. NetSys, founded in 1998, is a managed IT and cybersecurity firm whose only office is in Park Slope, Brooklyn, and San Antonio businesses are served entirely through remote and cloud-based support. You work with engineers who hold degrees in electrical engineering, electronics engineering or computer science and carry Cisco and Microsoft certifications, an account manager with a real cell number, and a dedicated engineer who takes severe problems such as ransomware or a dead circuit directly. We have no San Antonio office or local staff, and the service is designed to work without either.
How does managed IT work for San Antonio organizations?
We take responsibility for the environment and run it from Brooklyn. NinjaOne watches and patches every device, ThreatDown alerts reach an engineer who can isolate a machine remotely, and Microsoft 365, Intune, backups and firewalls are administered remotely. Staff reach the help desk by phone, email or Teams between 3 a.m. and 10 p.m. Central, seven days a week, and monitoring and emergency response cover the remaining hours. Hardware ships ready to use, and your own staff or cabling contractor handles anything that has to be plugged in. Agreements run month to month.
What IT services do you offer businesses in San Antonio?
Managed IT covers the whole environment for one per-user fee. San Antonio companies can also take IT support on its own, cybersecurity built on ThreatDown MDR and Rapid7 vulnerability scanning, IT consulting and virtual CIO planning, network security on Meraki or Fortinet firewalls, backup and disaster recovery on Datto SIRIS or Veeam, and Microsoft 365 projects such as tenant migrations or Copilot rollouts. Defense subcontractors can add NIST SP 800-171 and CMMC readiness work, and medical practices can add a HIPAA risk analysis. The same engineering team delivers every one of them.
How much do managed IT services cost in San Antonio?
We do not publish a price because the fee is set per user per month from an assessment of your environment. What moves it most is the number of servers still on premises, how many locations and circuits we manage, compliance evidence such as CMMC or HIPAA documentation, the number of software vendors we coordinate, and whether an internal IT person stays on in a co-managed arrangement. Hardware, licensing and one-time projects like a migration are quoted separately after scoping. Agreements run month to month, with no long-term contract to buy out.
What is the first step, and does anything come at no cost?
The first step is a call with an engineer, who asks about your users, sites, software and compliance obligations, followed by an assessment that produces a written scope and the monthly figure. The one service we provide at no charge is a remote external penetration test within an agreed scope. It shows what your business exposes to the internet, such as an open remote-desktop port or an unpatched firewall, and the report states its findings and its limits. It is a sensible place to start whether or not you go on to hire us.
How do you keep a San Antonio office working through freezes and flash floods?
We plan for the two kinds of event that keep closing San Antonio offices. The February 2021 winter storm, a federal disaster declaration for Bexar County, left businesses without power during the grid emergency, and on June 12, 2025 a flash flood swept vehicles off the Loop 410 access road into Beitel Creek and killed 13 people. So files and email live in Microsoft 365, backups replicate to a data center outside Texas, laptops work from any connection, and the firewall carries cellular failover. When nobody can reach the office, work continues from wherever staff are.
Get the whole of your IT handled by one accountable team.
Tell us how many people and devices you have, what you run today and what keeps breaking. We come back with a written scope, the responsibilities on each side and a monthly figure, before you decide anything.