Company lists · Data refreshed September 2026

Top 25 Power monitoring companies worldwide

RevenueBase identified 2,752 power monitoring companies worldwide as of September 2026 and tracks 30,330 professional contacts across them, including 9,906 with verified work emails and 4,878 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.

This list covers power monitoring companies worldwide, 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 7, 2026. Country and city lists for power monitoring companies follow the table.

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 7, 2026 86% judged on-target in blind review
2,752Companies
30,330Contacts tracked
9,906Verified emails
4,878Mobile numbers
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The 25 largest power monitoring companies worldwide

Ranked by team size
Top 25 of 2,752 power monitoring companies worldwide, ranked by team size, largest first. Data refreshed Sep 7, 2026. RevenueBase Smart Search rates how each company's information relates to power monitoring 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 evidenceMarlborough, MA, United StatesHQ checked Sep 7, 2026501-1,000619 contacts →

Indirect evidence

“Doble is the world’s most trusted brand in electrical diagnostics.”

Source: RevenueBase Database · checked Sep 7, 2026
2Indirect evidenceLive Oak, TX, United StatesHQ checked Sep 7, 2026501-1,000597 contacts →

Indirect evidence

“Since 1923, Alterman has provided electrical construction on many of San Antonio and Austin's most impressive landmarks and contemporary structures.”

Source: RevenueBase Database · checked Sep 7, 2026
3Indirect evidenceCedar Park, TX, United StatesHQ checked Sep 7, 2026501-1,000516 contacts →

Indirect evidence

“ETS-Lindgren is the leading supplier of energy management solutions for the industrial and commercial markets.”

Source: RevenueBase Database · checked Sep 7, 2026
4Partial evidenceHouston, TX, United StatesHQ checked Sep 7, 20261,001-5,000511 contacts →

Partial evidence

“RESA Power is your ONE-STOP for all of your power needs.”

Source: RevenueBase Database · checked Sep 7, 2026
5Strong evidenceFairport, NY, United StatesHQ checked Sep 7, 2026501-1,000494 contacts →

Strong evidence

“Qualitrol is a global leader in electrical grid monitoring solutions for businesses that manage, operate, or support the power grid.”

Source: RevenueBase Database · checked Sep 7, 2026
6Partial evidencePortland, OR, United StatesHQ checked Sep 7, 20261,001-5,000490 contacts →

Partial evidence

“Our lives function on a power grid.”

Source: RevenueBase Database · checked Sep 7, 2026
7Partial evidenceCarrollton, TX, United StatesHQ checked Sep 7, 20261,001-5,000426 contacts →

Partial evidence

“Concentric is the first national industrial power services organization delivering forklift and critical power as well as maintenance solutions that ensure uninterrupted…”

Source: RevenueBase Database · checked Sep 7, 2026
8Indirect evidenceMacaé, BrazilHQ checked Sep 7, 2026201-500395 contacts →

Indirect evidence

“MI Electric Brasil is a company specialized in electrical engineering, controls and automation, focusing on provide energy supplies and equipment maintenance solutions in order to…”

Source: RevenueBase Database · checked Sep 7, 2026
9Indirect evidenceUtrecht, NetherlandsHQ checked Sep 7, 2026201-500390 contacts →

Indirect evidence

“We develop products that allow manufacturers to easily monitor energy consumption and gain insight into machine maintenance.”

Source: RevenueBase Database · checked Sep 7, 2026
10Partial evidenceAshburn, VA, United StatesHQ checked Sep 7, 2026501-1,000353 contacts →

Partial evidence

“Hanley Energy are global innovators in Critical Power and Energy Management solutions, with a stable of world-class engineers shared between European headquarters in Ireland…”

Source: RevenueBase Database · checked Sep 7, 2026
11Indirect evidenceEdmonton, AB, CanadaHQ checked Sep 7, 2026201-500327 contacts →

Indirect evidence

“Delivering confidence for over 40 years.”

Source: RevenueBase Database · checked Sep 7, 2026
12Indirect evidenceGreenwood, IN, United StatesHQ checked Sep 7, 2026201-500304 contacts →

Indirect evidence

“From our beginning in 1962 as a small electrical maintenance company in downtown Indianapolis with a staff of three, ERMCO, Inc.”

Source: RevenueBase Database · checked Sep 7, 2026
13Indirect evidenceJuiz De Fora, BrazilHQ checked Sep 7, 2026201-500280 contacts →

Indirect evidence

“A DEODE Energia foi fundada em 2012 proveniente da HF Energy.”

Source: RevenueBase Database · checked Sep 7, 2026
14Indirect evidenceLahnau, GermanyHQ checked Sep 7, 2026501-1,000267 contacts →

Indirect evidence

“Janitza energy measurement technology Nowadays, energy management is not only relevant for the environment and for society but is also a critical competitive factor.”

Source: RevenueBase Database · checked Sep 7, 2026
15Strong evidenceWestbury, NY, United StatesHQ checked Sep 7, 2026201-500241 contacts →

Strong evidence

“For over 45 years, Electro Industries/GaugeTech has been a leader in innovation and technological advancements in the areas of energy management and power monitoring.”

Source: RevenueBase Database · checked Sep 7, 2026
16Partial evidenceBarcelona, SpainHQ checked Sep 7, 202651-200230 contacts →

Partial evidence

“GreenPowerMonitor, a DNV company, is a leading provider of renewable energy asset monitoring, control, and asset management solutions, with a focus on solar energy, wind energy…”

Source: RevenueBase Database · checked Sep 7, 2026
17Indirect evidenceSao Paulo, BrazilHQ checked Sep 7, 202651-200225 contacts →

Indirect evidence

“Empresa voltada a projetos de Otimização e Eficiêntização no uso da energia elétrica.”

Source: RevenueBase Database · checked Sep 7, 2026
18Indirect evidenceKhopoli, IndiaHQ checked Sep 7, 202651-200225 contacts →

Indirect evidence

“Exact Sun India specializes in delivering comprehensive mechanical, structural, and electrical design services, along with full-service installation solutions for both industrial…”

Source: RevenueBase Database · checked Sep 7, 2026
19Indirect evidenceAuburn Hills, MI, United StatesHQ checked Sep 7, 202651-200219 contacts →

Indirect evidence

“Setting a Superior Standard for Electrical Solutions Since 1991 Based out of Auburn Hills, Michigan and serving industries internationally, Superior Electric Great Lakes Company…”

Source: RevenueBase Database · checked Sep 7, 2026
20Indirect evidenceBragança Paulista, BrazilHQ checked Sep 7, 2026201-500218 contacts →

Indirect evidence

“We have been in the market for over 20 years serving the main industrial and commercial markets, gaining prominent positions in the segments of Engineering, Commissioning of…”

Source: RevenueBase Database · checked Sep 7, 2026
21Partial evidenceQuébec City, QC, CanadaHQ checked Sep 7, 2026201-500207 contacts →

Partial evidence

“Headquartered in Quebec, Canada, Rugged Monitoring is a global technology company focused on the digitalization of critical electrical infrastructure.”

Source: RevenueBase Database · checked Sep 7, 2026
22Partial evidenceMckinney, TX, United StatesHQ checked Sep 7, 2026201-500205 contacts →

Partial evidence

“At Maverick Power, we are revolutionizing power solutions for businesses with a strong commitment to innovation, efficiency, and reliability.”

Source: RevenueBase Database · checked Sep 7, 2026
23Indirect evidenceCalusco D'adda, ItalyHQ checked Sep 7, 2026201-500190 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 7, 2026
24Indirect evidenceHouston, TX, United StatesHQ checked Sep 7, 2026501-1,000188 contacts →

Indirect evidence

“Expanse Electrical Company is a premier provider of integrated electrical infrastructure, instrumentation and automation system solutions.”

Source: RevenueBase Database · checked Sep 7, 2026
25Indirect evidenceSalvador, BrazilHQ checked Sep 7, 202651-200177 contacts →

Indirect evidence

“A Ledax é uma indústria que fornece soluções de eficiência energética B2B através de iluminação LED, geração de energia fotovoltaica (placas solares), monitoramento de consumo de…”

Source: RevenueBase Database · checked Sep 7, 2026

Showing 25 of 2,752 power monitoring companies worldwide

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Power monitoring companies worldwide at a glance

As of Sep 7, 2026
32.7%Verified-email coverage
16.1%Mobile-number coverage
11.0Average contacts per company
11-50Median size (employees)
1.1%Largest-city concentration · Sao Paulo
Sep 7, 2026Page data refreshed

Companies by employee count

1-10
1,319
11-50
1,054
51-200
264
201-500
49
501-1,000
17
1,001-5,000
10
10001+
3

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 power monitoring 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.
Coverage
19 countries, largest first: the United States, Brazil, Italy, the United Kingdom, Germany, France, India, Spain, Canada, Australia and 9 more. Country and city lists for power monitoring companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “power monitoring 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 power monitoring 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 power monitoring companies, and records with no verified work email.
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, 9,906 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 between September 7, 2026 and September 14, 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.

Power monitoring companies by location

19 lists · largest first

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

Countries

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 power monitoring 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 power monitoring companies are there worldwide?

RevenueBase identified 2,752 power monitoring companies worldwide 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?

Doble Engineering, headquartered in Marlborough, tops this list with the largest team on record.

Which country has the most power monitoring companies?

The United States leads with 524 companies, followed by Brazil (321) and Italy (259). Every power monitoring companies list by country and city is linked on this page.

Which city has the most power monitoring companies?

Sao Paulo leads with 29 headquartered companies, followed by London (16) and Istanbul (14).

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 9,906 verified decision-maker contacts tracked across these 2,752 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 7, 2026 and September 14, 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.