Company lists · Data refreshed November 2026

Top 18 Refinery control systems integrators based in Houston, United States

RevenueBase identified 52 company matches for refinery control systems integrators associated with Houston, United States as of November 2026 and tracks 2,052 professional contacts across them, including 986 with verified work emails. Across the United States, Houston is the largest hub for this category.

This list covers company matches for refinery control systems integrators associated with Houston, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
52Companies
2,052Contacts tracked
986Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 18 largest refinery control systems integrators based in Houston, United States

Ranked by team size
Top 18 of 52 company matches for refinery control systems integrators based in Houston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchHouston, TX, United StatesHQ recorded Nov 5, 2026501-1,000559 contacts →

Exact match

“Ingenero's goal is to be the best process engineering firm by delivering the highest quality service and software solutions at the lowest cost.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Nov 5, 202611-50115 contacts →

Exact match

“We have earned a reputation as a global leader in Design/Build & Systems Integration for more than 30 years.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchHouston, TX, United StatesHQ recorded Nov 5, 202611-5042 contacts →

Exact match

“Parijat Controlware Inc.(Parijat or PCI) is a controls systems integrator since 1989, has been a strong player in the controls, automation industry.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Nov 5, 202611-5030 contacts →

Exact match

“EnerSys Corporation is an oil & gas software and services company focused on delivering operational excellence for oil & gas pipeline control rooms.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchHouston, TX, United StatesHQ recorded Nov 5, 202651-20022 contacts →

Exact match

“TAG is a recognized leader in providing system independent, specialized technical and management services for the implementation of process control system projects in the…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchHouston, TX, United StatesHQ recorded Nov 5, 202611-5019 contacts →

Exact match

“At SISO, we take a collaborative, hands-on approach to solving complex turbine control and automation challenges.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchHouston, TX, United StatesHQ recorded Nov 5, 202651-20015 contacts →

Exact match

“Lime Instruments is an independent Houston-based global provider of leading-edge controls and instrumentation systems for the energy and industrial control markets.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchHouston, TX, United StatesHQ recorded Nov 5, 202611-509 contacts →

Exact match

“About SSAC Solid State Automation and Controls LLC (SSAC) is an electrical engineering company that provides comprehensive solutions for your automation and control system needs.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchHouston, TX, United StatesHQ recorded Nov 5, 20261-106 contacts →

Exact match

“Specializing in various Control System Platforms, including Process Control Systems, Safety Control Systems, Programmable Logic Controllers, and RTU’s.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchHouston, TX, United StatesHQ recorded Nov 5, 202611-506 contacts →

Exact match

“Elinca Electronic Corporation was founded in 2009 in the city of Katy Texas, with the aim of developing commercial activities for the local and national market, in the field of…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchHouston, TX, United StatesHQ recorded Nov 5, 202611-503 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Nov 5, 20261-103 contacts →

Exact match

“PCT is a young dynamic company with over a century of experience behind it.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchHouston, TX, United StatesHQ recorded Nov 5, 20261-103 contacts →

Exact match

“Industrial Control Systems Engineering started is an Automation & Controls company.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchHouston, TX, United StatesHQ recorded Nov 5, 20261-103 contacts →

Exact match

“Our major focus is to provide the worldwide refining sector a world-class project management, integration and consulting service and automation solutions for refinery offsite…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchHouston, TX, United StatesHQ recorded Nov 5, 202651-2002 contacts →

Exact match

“We connect equipment, systems and processes – old with new, modern with legacy.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchHouston, TX, United StatesHQ recorded Nov 5, 202611-502 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchHouston, TX, United StatesHQ recorded Nov 5, 202651-2001 contacts →

Exact match

“Specialized in Automatic Sampling Systems for Crude Oil Custody Transfer, System Integration (AH, ALC, SCS, SRS), Heating, Ventilation & Air Conditioning units and Process Control…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchHouston, TX, United StatesHQ recorded Nov 5, 202611-501 contacts →

Exact match

“Complete Engineering and Integration Services including PLC and DCS programming, high performance HMI design and configuration, control panel design and assembly, turn-key project…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 18 of 52 refinery control systems integrators based in Houston, United States

See the full list, filter by size, metro and specialty, and access 986 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Refinery control systems integrators based in Houston, United States at a glance

As of Nov 5, 2026
48.1%Verified-email coverage
39.5Average contacts per company
11-50Median size (employees)
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
17
11-50
21
51-200
11
501-1,000
3

Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 52 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Houston, United States whose business descriptions match “refinery control systems integrators” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 986 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “refinery control systems integrators”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many refinery control systems integrators are there based in Houston, United States?

RevenueBase identified 52 company matches for refinery control systems integrators associated with Houston, United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Ingenero tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most refinery control systems integrators?

Houston leads the United States with 52 company records, followed by Baton Rouge (8) and Corpus Christi (8).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 986 professional contacts with verified work emails tracked across these 52 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 52 refinery control systems integrators based in Houston, United States. Start with a free account, no credit card.

Download this list →

Related lists

About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.