Industrial Automation Companies in Houston: 2026 Directory and Hiring Guide

Houston runs on process. Pipelines, terminals, refineries, chemical plants, water systems, and factories across the Gulf Coast all depend on control systems that start pumps, open valves, read instruments, and shut things down safely when something goes wrong. Behind those systems are industrial automation companies that design, program, build, and maintain them.

If you are looking for industrial automation companies in Houston, you will find a crowded field. Some are system integrators that write PLC and SCADA software. Others build control panels, supply instrumentation, or specialize in one industry such as water treatment or oil and gas. This guide helps you sort them out. You will find profiles of Houston companies listed on Engineers Mirror, what each says it specializes in, how to choose between them, and what to check before you hire.

How We Selected These Industrial Automation Companies in Houston

The Engineers Mirror Control Systems category currently includes more than 20 Houston listings. We reviewed each profile and included the companies that describe industrial automation, control systems integration, control panels, or process control equipment. A few listings in the same category, such as electronic security providers and software businesses, serve different needs and are not covered here.

Companies appear in no particular order. This is not a ranking, and a listing is not an endorsement. Details come from each company’s public directory profile, so verify everything with the company before you hire.

Industrial Automation Companies in Houston at a Glance

System Integrators and Automation Engineering Firms

Parijat Controlware Inc.

Parijat describes itself as an established industrial automation and control systems company, founded in 1989 and headquartered in Houston. According to its profile, it works on PLC, PAC, DCS, HMI and SCADA systems, process automation, and systems integration for industries including oil and gas, power, water, pharmaceuticals, food and beverage, chemicals, manufacturing, and transportation.

The services list is broad: PLC programming, HMI and SCADA development, control system integration, instrumentation, electrical engineering, control panel design, cybersecurity, digital twins, data analytics, IoT digitalization, and maintenance. The company also develops custom software and communication drivers.

Best for: larger or multi-discipline projects where you want one partner covering control, software, and data.

SDRG Controls & Automation

SDRG Controls & Automation is a Houston company whose profile says it began in 1978. It designs, builds, integrates, and maintains industrial control and automation systems for oil and gas, manufacturing, chemical processing, and material handling.

Its listed work includes customized PLC control systems, process automation, instrumentation, monitoring systems, and automated material-handling solutions. Experience described in the profile includes automated equipment, chemical processing systems, oilfield manufacturing automation, and specialized monitoring systems.

Best for: custom automated equipment, machine control, and material-handling projects.

NS Controls, Inc.

NS Controls is a Houston electrical and control systems design and integration company, established in 1985 according to its profile. It focuses on panel, rack, and building integration for industrial and oil and gas applications, with services that include engineering, CAD drafting, electrical and control design, system integration, and specialty fabrication.

The profile mentions pipeline facilities, pump stations, meter stations, tank farms, terminals, and custody transfer systems, along with complete electrical and control drawing packages, PLC panels, flow computer panels, power distribution systems, control racks, and integrated buildings. It also states that the company operates an ISO 9001:2015-certified quality management system and a UL 508A-certified shop. Confirm current certificates before you rely on them.

Best for: midstream and industrial facilities that need drawings, panels, and integrated buildings from one source.

Texas Controls USA

Texas Controls USA describes itself as an industrial automation and control solutions company covering industrial control systems, automation, instrumentation, and electrical control. Its listed services include PLC programming, HMI and SCADA systems, process control, instrumentation, control panel design, electrical controls, system integration, and automation engineering.

Best for: facilities modernizing aging control infrastructure that want a single partner for programming, panels, and integration.

More Integrators and Automation Providers

• AIM Controls is a Houston industrial automation and motor control company. Its profile lists control systems, variable speed drives, and motor control solutions.
• Automated Controls Systems is listed as an industrial automation and control solutions company covering automated control systems, building automation, and process control.
• Custom Controls Co. is listed as providing custom control solutions, automation engineering, and electrical control systems.
• Falcon Control Systems, LLC is listed as an industrial control and automation engineering company, with electrical control solutions.
• GeoControl Systems, Inc. is listed as an engineering and industrial technology company working in control systems, automation engineering, and instrumentation.
• Advanced Control Systems, LLC provides customized control system solutions. Its profile lists a base in Meridian, Idaho, so confirm what local support it offers in Houston.

Control Panel and Electrical Equipment Builders

If you need hardware more than software, look at companies that build panels and electrical equipment.

• J A Controls Inc. is a Houston industrial control panel manufacturer and electrical controls company that builds custom control panels.
• Controls of Houston, Inc. is a Houston company focused on industrial pump and control panel solutions, with custom-engineered control systems.
• Eagle Controls Inc. is a family-owned electrical equipment manufacturing and industrial controls company, established in 1989 according to its profile.

Panel shops are a good fit when you already have a design and need it built, tested, and delivered. Ask whether the shop holds a recognized panel certification such as UL 508A, which matters for many US installations.

Process, Water, and Measurement Specialists

Some Houston companies serve a narrower niche.

• Design Controls, LLC focuses on water treatment and chemical feed automation, including design, manufacturing, integration, and servicing.
• Automation Products Inc. (Dynatrol) is a process measurement and control equipment manufacturer with a history dating back to 1956, according to its profile.
• C-Automation Inc. is a subsea and surface control equipment manufacturer and engineering company.
• Building Controls & Solutions is a building automation products distributor serving contractors, engineers, building owners, and commercial HVAC customers.

What Do Industrial Automation Companies in Houston Actually Do?

Whatever the label, most of these companies deliver some mix of the same services:

• PLC and HMI programming. The logic and operator screens that run a machine or process.
• SCADA and DCS work. Supervisory systems and distributed control for larger plants and pipelines.
• Control panel design and build. Cabinets, wiring, and testing.
• Instrumentation. Sensors, transmitters, and measurement equipment.
• System integration. Tying controllers, drives, instruments, and networks together.
• Commissioning and support. Startup, training, and long-term maintenance.

Our guide on how to choose an industrial automation company explains each of these services in more detail, including the differences between integrators, panel shops, and consultancies.

Industries Houston Automation Companies Serve

The profiles above point to a few clear sectors. Oil and gas is the most common, from pipeline facilities and tank farms to oilfield equipment. Chemical processing, water and wastewater, manufacturing, power, and food and beverage also appear. Building automation and commercial HVAC controls are part of the mix as well.

What to Consider When Hiring Locally in Houston

A few points matter more on the Gulf Coast than elsewhere.

• Industry experience. Look for projects like yours, such as midstream facilities, chemical plants, or water systems. Each has its own standards and risks.
• Hazardous areas. Many industrial sites have classified areas that need specially rated equipment. Ask how the company handles design and documentation for them.
• Response time. When a plant is down, local support matters. Ask about emergency response and whether technicians are based in the Houston area.
• Environment. Heat, humidity, corrosion, and storm risk affect enclosure ratings, power backup, and equipment choices.
• Cybersecurity. Control systems are a target, so ask about their approach to industrial cybersecurity, including familiarity with ISA/IEC 62443 and NIST SP 800-82 Rev. 3. The CISA industrial control systems resources are also worth reading.
• Integrator credentials. The Control System Integrators Association (CSIA) audits integrators against recognized business practices. It is not mandatory, but it is a useful signal.

Licensing in Texas

In Texas, engineering is a regulated profession. Engineering work must be performed by licensed Professional Engineers, and firms offering engineering services to the public must register with the state board. You can read the rules on the TBPELS firm registration page. Whether your control system drawings need a PE seal depends on the project, the facility, and the permitting authority, so ask each company how it handles this. For more on credentials, see our guide to P.Eng vs PE vs CEng, and for a Houston example of how this applies to hiring, read our guide to structural engineering companies in Houston.

How to Choose Between Industrial Automation Companies in Houston

Use this short version of our full selection process:

1. Define your scope. List the process, I/O count, existing equipment, standards, and deadline.
2. Match the company type to your need. An integrator for software and system design, a panel shop for hardware, a specialist for water or measurement.
3. Check platform expertise. Make sure they support the PLC and SCADA brands you already run.
4. Verify credentials. Look at certifications, licensing, and insurance, and ask for proof.
5. Ask for references. Speak to two recent clients with similar projects.
6. Compare written quotes. Look at scope, exclusions, and terms, not just price.
7. Agree on ownership. You should receive editable source code, drawings, and passwords at handover.
8. Plan for support. Ask about response times and service agreements after go-live.

Our full guide on how to choose an industrial automation company walks through nine steps and a list of red flags.

Questions to Ask Houston Automation Companies

1. Which industries and facility types do you work in most?
2. Which PLC and SCADA platforms do you support, and why?
3. Who will lead my project, and are they based in Houston?
4. Will we own the source code and drawings?
5. How do you test before shipping and on site?
6. What certifications do your shop and team hold?
7. How do you handle cybersecurity and remote access?
8. What is your emergency response time?
9. Can I speak with two recent customers?

Getting Comparable Quotes

To compare companies fairly, send every shortlisted firm the same written scope. Our free engineering RFQ template gives you a copy-and-paste request, a quote response form, and a scoring sheet. Automation pricing varies widely with I/O count, complexity, hardware, and site conditions, so we do not quote figures here. The cost section of our automation guide explains what drives the price.

Find More Industrial Automation Companies in Houston

Engineers Mirror lists 47 engineering companies in Houston across all categories, along with companies in the wider Control Systems and Automation categories. You can also browse Power Distribution, Circuit Design, and the full Electrical & Power section. For projects elsewhere in Texas, look at companies in Dallas and Austin, or browse all engineering companies in the United States.

Prefer to send one brief and let providers come to you? Use the project form on the Engineers Mirror homepage. Pick the service you need, choose a budget range and timeline, and describe your project. It is free for buyers, and providers reply to you directly.

Do you run an automation company in Houston? You can list your company for free, claim your existing listing to update your details and receive project requests, or look at the Featured plans to appear at the top of your category page.

Final Thoughts on Industrial Automation Companies in Houston

The best of the industrial automation companies in Houston for your project is the one whose experience matches your industry, whose credentials check out, and who will still be reachable when something trips at 2 a.m. A software-heavy DCS upgrade, a skid-mounted panel, and a water treatment retrofit each call for a different kind of partner.

Start with a clear scope, shortlist two or three companies, verify their credentials and references, and compare written quotes on more than price. Do that and you will avoid most of the surprises that make automation projects expensive.

Ready to compare? Browse the profiles above, or send one project brief on Engineers Mirror and let the right providers come to you.

Frequently Asked Questions

How many industrial automation companies are in Houston?

Engineers Mirror lists more than 20 Houston companies in its Control Systems category, and 47 engineering companies in Houston overall. The directory is not exhaustive, so use it as a starting point and verify each company directly.

What does an industrial automation company do?

It designs, programs, builds, installs, and supports the control systems that run machines and processes, including PLCs, HMIs, SCADA, DCS, control panels, and instrumentation.

What is the difference between an integrator and a control panel shop?

An integrator designs and programs the whole system and ties the pieces together. A panel shop builds the hardware, such as control cabinets, from a design. Many companies do both, so ask what each one actually delivers.

Do I need a licensed engineer for control system work in Texas?

Engineering work in Texas must be performed by licensed Professional Engineers, and engineering firms must register with the state board. Whether a specific control system design needs a PE seal depends on the project and the permitting authority. Ask each company how it handles this, and confirm with the Texas Board of Professional Engineers and Land Surveyors if you are unsure.

Should I choose a local Houston company?

Local companies make site visits and emergency support easier, and they know regional industries and codes. Remote or national firms can offer deeper specialist skills. Many projects use a mix, with remote design and local commissioning.

How do I get comparable quotes from several companies?

Send the same written brief to each one, covering scope, deliverables, standards, schedule, and the format you want quotes in. Our RFQ template gives you a ready-made structure and a scoring sheet.