Company lists · Data refreshed November 2026

Top 25 Operational technology vendors worldwide

RevenueBase identified 3,726 company matches for operational technology vendors worldwide as of November 2026 and tracks 229,320 professional contacts across them, including 55,118 with verified work emails. The United States is the largest market and Pune the largest hub.

This list covers company matches for operational technology vendors worldwide, 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 6, 2026. Country and city lists for operational technology vendors follow the table.

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 6, 2026 How this list was built
3,726Companies
229,320Contacts tracked
55,118Verified emails
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The 25 largest operational technology vendors worldwide

Ranked by team size
Top 25 of 3,726 company matches for operational technology vendors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchZurich, SwitzerlandHQ recorded Nov 6, 202610001+108,014 contacts →

Exact match

“ABB is a technology leader in electrification and automation, enabling a more sustainable and resource-efficient future.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMilwaukee, United StatesHQ recorded Nov 6, 202610001+22,371 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchEspoo, FinlandHQ recorded Nov 6, 20261,001-5,0002,556 contacts →

Exact match

“We are a technology service company that, with our thinkers and doers, enable breakthroughs that help industrial businesses change.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBangalore, IndiaHQ recorded Nov 6, 20261,001-5,0001,961 contacts →

Exact match

“Yokogawa India Private Limited, incorporated in 1987, is an affiliate of Yokogawa Electric Corporation, Japan, having strong marketing and service network across India.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchWoerden, NetherlandsHQ recorded Nov 6, 20261,001-5,0001,774 contacts →

Exact match

“ICT Group is a leading European provider of industrial technology solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026201-5001,333 contacts →

Exact match

“PAS, part of Hexagon's Asset Lifecycle Intelligence division, delivers software solutions that prevent, detect, & remediate cyber threats, reduce process safety risks, and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchCalgary, SK, CanadaHQ recorded Nov 6, 20261,001-5,0001,321 contacts →

Exact match

“Spartan Controls is the leading provider of industrial automation, valves, measurement and process control technology and solutions in Western Canada.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchHalmstad, SwedenHQ recorded Nov 6, 20261,001-5,0001,213 contacts →

Exact match

“HMS Networks - Hardware Meets Software™ This is HMS Networks: WHAT WE DO: We create products that enable industrial equipment to communicate and share information.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMidrand, South AfricaHQ recorded Nov 6, 20261,001-5,0001,173 contacts →

Exact match

“iOCO is one of Africa's largest end-to-end technology solutions providers, delivering specialised IT and Operational Technology (OT) services to corporate, enterprise, and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchKitchener, BC, CanadaHQ recorded Nov 6, 2026501-1,0001,057 contacts →

Exact match

“Brock Solutions is a global industrial automation, engineering software, and professional services company with industry expertise in Manufacturing, Transportation, and Utilities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSioux Center, CO, United StatesHQ recorded Nov 6, 20261,001-5,0001,034 contacts →

Exact match

“As a Partner Interstates is your trusted partner for electrical, automation, and operational technology needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchNeuhausen Auf Den Fildern, TürkiyeHQ recorded Nov 6, 20261,001-5,0001,015 contacts →

Exact match

“We are your partner for industrial automation – from sensor to system.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchAberdeen, United KingdomHQ recorded Nov 6, 2026501-1,000981 contacts →

Exact match

“Proserv is the controls technology partner powering progress across the global energy sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026501-1,000921 contacts →

Exact match

“INTECH Automation & Intelligence is a globally renowned industrial automation & digitalization technology company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchDetmold, GermanyHQ recorded Nov 6, 20265,001-10,000773 contacts →

Exact match

“The Weidmüller Group has production facilities, sales companies and representatives in more than 80 countries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchMumbai, IndiaHQ recorded Nov 6, 2026501-1,000770 contacts →

Exact match

“Marine Electricals is an integrated technical services provider in the fields of electrical automation and information and communication technology solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchStafford, TX, United StatesHQ recorded Nov 6, 2026501-1,000735 contacts →

Exact match

“Puffer‑Sweiven has supported process operations for over 80 years-helping facilities run safer, smarter, and more reliably.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchKochi, IndiaHQ recorded Nov 6, 2026501-1,000696 contacts →

Exact match

“Welcome to SMEC Automation, where engineering excellence meets innovation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchHanover, MD, United StatesHQ recorded Nov 6, 2026501-1,000670 contacts →

Exact match

“Dragos provides the most effective OT cybersecurity technology for industrial and critical infrastructure to deliver on our global mission: to safeguard civilization.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBaton Rouge, TX, United StatesHQ recorded Nov 6, 2026501-1,000626 contacts →

Exact match

“Setpoint Integrated Solutions, a Vytl Company is a leading integrated solutions and services provider in the process control industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBruehl, GermanyHQ recorded Nov 6, 20261,001-5,000612 contacts →

Exact match

“The HIMA Group is a global independent provider of safety-related automation solutions for the process and rail industries that protect people, assets, and the environment from…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSan Sebastián, SpainHQ recorded Nov 6, 2026501-1,000611 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchPost Falls, United StatesHQ recorded Nov 6, 20261,001-5,000587 contacts →

Exact match

“Raycap is a privately-held technology solutions provider offering products and services that support and protect the world’s critical telecommunications, energy, transportation…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLeiria, PortugalHQ recorded Nov 6, 202651-200579 contacts →

Exact match

“EST - Empresa Serviços Técnicos, S.A.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchTonsley, IndiaHQ recorded Nov 6, 2026501-1,000567 contacts →

Exact match

“SAGE Automation is Australia’s leading provider of industrial automation and control services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 3,726 operational technology vendors worldwide

See the full list, filter by size, metro and specialty, and access 55,118 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Operational technology vendors worldwide at a glance

As of Nov 6, 2026
24.0%Verified-email coverage
61.5Average contacts per company
11-50Median size (employees)
1.0%Largest-city concentration · Pune
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,448
11-50
1,447
51-200
548
201-500
131
501-1,000
49
1,001-5,000
47
5,001-10,000
13
10001+
12

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for operational technology vendors are linked below.
What qualifies
Company records worldwide whose business descriptions match “operational technology vendors” 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. 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 55,118 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 6, 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.

Operational technology vendors by location

31 lists · largest first

Every Operational technology vendors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “operational technology vendors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many operational technology vendors are there worldwide?

RevenueBase identified 3,726 company matches for operational technology vendors worldwide 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?

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

Which country has the most operational technology vendors?

The United States leads with 398 companies, followed by India (266) and Brazil (256). Every operational technology vendors list by country and city is linked on this page.

Which city has the most operational technology vendors?

Pune leads with 39 company records, followed by Houston (34) and Sao Paulo (30).

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 55,118 professional contacts with verified work emails tracked across these 3,726 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 6, 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 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.