Company lists · Data refreshed September 2026

Top 25 Remote terminal unit software companies based in the United States

RevenueBase identified 133 remote terminal unit software companies headquartered in the United States as of September 2026 and tracks 22,580 professional contacts across them, including 7,804 with verified work emails. Houston is the largest hub.

This list covers remote terminal unit software companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review
133Companies
22,580Contacts tracked
7,804Verified emails
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The 25 largest remote terminal unit software companies based in the United States

Ranked by team size
Top 25 of 133 remote terminal unit software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to remote terminal unit software companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceMilwaukee, WI, United StatesHQ checked Sep 29, 202610001+20,582 contacts →

Indirect evidence

“At Rockwell Automation, we connect the imaginations of people with the potential of technology to expand what is humanly possible, making the world more intelligent, more…”

Source: RevenueBase Database · checked Sep 29, 2026
2Strong evidenceFolsom, CA, United StatesHQ checked Sep 29, 2026201-500362 contacts →

Strong evidence

“Inductive Automation creates industrial software that empowers organizations to swiftly turn great ideas into reality by removing all technological and economic obstacles.”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceLakeland, FL, United StatesHQ checked Sep 29, 2026n/a161 contacts →

Indirect evidence

“AA Electric is your single source for machine control and automation specialty electrical products.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceHouston, TX, United StatesHQ checked Sep 29, 202651-20093 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceFort Collins, CO, United StatesHQ checked Sep 29, 202651-20074 contacts →

Indirect evidence

“Automation-X, Inc.”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceBellevue, WA, United StatesHQ checked Sep 29, 202651-20073 contacts →

Partial evidence

“Solutions Geared for Industrial Applications® Since 1983, Spectrum Controls has continued to be the premier provider of hardware and related software products for the industrial…”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceClarkston, MI, United StatesHQ checked Sep 29, 202611-5055 contacts →

Indirect evidence

“AtomTech was founded to provide comprehensive controls solutions for our customers, leveraging industry best practices with the latest technology.”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceDenver, CO, United StatesHQ checked Sep 29, 202651-20054 contacts →

Indirect evidence

“Founded in Eagle Automation is an automation, electrical, and measurement solutions provider.”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceHouston, TX, United StatesHQ checked Sep 29, 202611-5052 contacts →

Partial evidence

“Tatsoft develops industrial software designed to provide a robust toolkit for companies to achieve more, faster, with affordability in mind.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceOlathe, KS, United StatesHQ checked Sep 29, 202611-5048 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceWaltham, MA, United StatesHQ checked Sep 29, 202651-20040 contacts →

Partial evidence

“IntervalZero’s RTX64 and KINGSTAR are software platforms for building real-time Industrial Control Systems.”

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidenceWest Babylon, NY, United StatesHQ checked Sep 29, 202651-20040 contacts →

Partial evidence

“Power Resources International, Inc.(PRI) is a hardware, software, and engineering solutions provider.”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceSaddle Brook, NJ, United StatesHQ checked Sep 29, 202651-20036 contacts →

Indirect evidence

“Westlock Controls is a leader in providing innovative solutions for the monitoring, networking and control of automated process valve packages, since 1984.”

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidencePortland, ME, United StatesHQ checked Sep 29, 202651-20036 contacts →

Partial evidence

“Kepware is a software solution developed by PTC, designed to facilitate connectivity between various industrial automation devices and applications.”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceSpringfield, NJ, United StatesHQ checked Sep 29, 2026201-50030 contacts →

Partial evidence

“QEI has a long history of innovation and technical leadership for comprehensive automation solutions through hardware, software and service offerings enabling utility…”

Source: RevenueBase Database · checked Sep 29, 2026
16Partial evidenceLouisville, KY, United StatesHQ checked Sep 29, 202611-5028 contacts →

Partial evidence

“IGear, headquartered in Louisville, Kentucky, is a leading provider of connectivity, process control, and visual analysis software platforms for the global manufacturing industry.”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceHouston, TX, United StatesHQ checked Sep 29, 20261-1028 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceKnoxville, TN, United StatesHQ checked Sep 29, 202611-5023 contacts →

Indirect evidence

“Online Development Inc.”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceMiami, FL, United StatesHQ checked Sep 29, 202611-5021 contacts →

Indirect evidence

“Celebrating 20 years, Force 5, Inc.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceMequon, WI, United StatesHQ checked Sep 29, 202611-5021 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceLuray, VA, United StatesHQ checked Sep 29, 202611-5018 contacts →

Indirect evidence

“TECHNOLOGY-BASED SOLUTIONS FOR INTEGRATED INDUSTRIAL AUTOMATION Valley Automation provides cutting edge technological solutions for industrial control systems.”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceFredericktown, OH, United StatesHQ checked Sep 29, 202611-5016 contacts →

Indirect evidence

“Divelbiss Corporation - founded in 1974 - designs and manufactures industrially hardened electronic control solutions.”

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect evidenceCedar Park, TX, United StatesHQ checked Sep 29, 202611-5015 contacts →

Indirect evidence

“Tempset Controls Inc is an industrial automation company based out of P.O.”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceHouston, TX, United StatesHQ checked Sep 29, 202651-20014 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
25Partial evidenceAkron, OH, United StatesHQ checked Sep 29, 202611-5014 contacts →

Partial evidence

“CTI provides enterprise software and controls engineering solutions to our clients who are primarily industrial manufacturing companies such as those in the tire and rubber…”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 133 remote terminal unit software companies based in the United States

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Remote terminal unit software companies based in the United States at a glance

As of Sep 29, 2026
34.6%Verified-email coverage
169.8Average contacts per company
11-50Median size (employees)
6.8%Largest-city concentration · Houston
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
52
11-50
54
51-200
20
201-500
3
501-1,000
1
1,001-5,000
1
5,001-10,000
1
10001+
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 133 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among remote terminal unit software companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “remote terminal unit software companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names remote terminal unit software companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among remote terminal unit software companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 7,804 across the full list. 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 September 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names remote terminal unit software companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many remote terminal unit software companies are there based in the United States?

RevenueBase identified 133 remote terminal unit software companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Rockwell Automation, headquartered in Milwaukee, tops this list with the largest team on record.

Which city has the most remote terminal unit software companies?

Houston leads with 9 headquartered companies, followed by Akron (2) and Austin (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 7,804 verified decision-maker contacts tracked across these 133 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.

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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 Smart Search, 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.