Company lists · Data refreshed November 2026

Top 25 Generator diagnostic services worldwide

RevenueBase identified 941 company matches for generator diagnostic services worldwide as of November 2026 and tracks 12,650 professional contacts across them, including 4,383 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for generator diagnostic services 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 generator diagnostic services 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
941Companies
12,650Contacts tracked
4,383Verified emails
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The 25 largest generator diagnostic services worldwide

Ranked by team size
Top 25 of 941 company matches for generator diagnostic services 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 matchToronto, ON, CanadaHQ recorded Nov 6, 20261,001-5,0001,395 contacts →

Exact match

“Kinectrics is an integrated lifecycle management services company providing testing, inspection, certification and engineering consulting for the electric power generation…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchIrving, OK, United StatesHQ recorded Nov 6, 20261,001-5,0001,324 contacts →

Exact match

“Shermco Industries is a provider of safe, reliable testing, repair, professional training, electrical outage planning, maintenance and analysis of rotating apparatus and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchMaryland Heights, MI, United StatesHQ recorded Nov 6, 2026501-1,000678 contacts →

Exact match

“Electric Power Systems is an independent electrical testing & engineering organization.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMarlborough, MA, United StatesHQ recorded Nov 6, 2026501-1,000662 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchRugby, United KingdomHQ recorded Nov 6, 2026501-1,000456 contacts →

Exact match

“Quartzelec is a leading independent electrical engineering group delivering solutions and services in both UK and global markets.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchIndianapolis, United StatesHQ recorded Nov 6, 2026201-500220 contacts →

Exact match

“POLARIS Laboratories® can help you prevent maintenance failure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchTallmadge, OH, United StatesHQ recorded Nov 6, 2026201-500219 contacts →

Exact match

“SDMyers is the industry leader in transformer and substation maintenance and electric power system reliability.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchUnited StatesHQ recorded Nov 6, 2026n/a214 contacts →

Exact match

“http://tpiengineering.com/”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchColumbus, OH, United StatesHQ recorded Nov 6, 2026501-1,000164 contacts →

Exact match

“Leading independent manufacturer of generator stator and rotor windings, including inner-water and inner-hydrogen stator bars, roebel bars and diamond coils.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchChesapeake, VA, United StatesHQ recorded Nov 6, 2026201-500141 contacts →

Exact match

“Established in 1960, Electric Motor and Contracting remains one of the largest independently owned electric motor and pump repair shops in the U.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchFort Worth, TX, United StatesHQ recorded Nov 6, 2026201-500106 contacts →

Exact match

“For over 25 years, Sentinel-TDS, based in Dallas/Ft.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMannheim, GermanyHQ recorded Nov 6, 2026201-500105 contacts →

Exact match

“Die DPG ist der innovative Dienstleister für hochwertige elektrische und nichtelektrische Betriebssicherheitsprüfungen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchHolbrook, MA, United StatesHQ recorded Nov 6, 2026n/a95 contacts →

Exact match

“Specialists in Electrical Power Systems - Testing, Commissioning, Maintenance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchMississauga, ON, CanadaHQ recorded Nov 6, 202651-20090 contacts →

Exact match

“Iris Power LP was established to provide high-quality products and services to improve maintenance capabilities for large motors and generators used by power utilities and heavy…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBogota, ColombiaHQ recorded Nov 6, 202651-20090 contacts →

Exact match

“Somos solución integral en la ejecución de pruebas a sistemas eléctricos a cualquier nivel de tensión; Ofrecemos la ejecución de una amplia gama de pruebas eléctricas, soportados…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchCape Coral, FL, United StatesHQ recorded Nov 6, 202651-20084 contacts →

Exact match

“Turbine Generator Maintenance, Inc.(TGM) is the premier solution provider for steam and combustion turbine and generator inspection, testing, and repair.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchJacksonville, FL, United StatesHQ recorded Nov 6, 202651-20079 contacts →

Exact match

“Although our headquarters are in Jacksonville, we are proud to offer the highest quality generators and electrical service in the state of Florida.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchPerrysburg, OH, United StatesHQ recorded Nov 6, 202651-20077 contacts →

Exact match

“Kiemle-Hankins is a leading industrial service and repair company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact match69493, GermanyHQ recorded Nov 6, 2026201-50076 contacts →

Exact match

“Die KPS Prüfservice ist bundesweit unter den marktführenden Unternehmen im Bereich elektrische Betriebsmittelprüfungen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchMassillon, AL, United StatesHQ recorded Nov 6, 2026201-50070 contacts →

Exact match

“Magnetech is an ISO-quality provider of electrical-mechanical industrial services, including testing, repair, rewind and refurbishment of ac/dc motors and generators…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchConverse, TX, United StatesHQ recorded Nov 6, 202651-20064 contacts →

Exact match

“WELCOME Power Engineering Services is an Accredited, Full-Member of the International Electrical Testing Association (NETA), and a Registered Engineering Firm in 46 states.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMumbai, IndiaHQ recorded Nov 6, 202651-20059 contacts →

Exact match

“DIATECH was founded in 1990 by Mr.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchMontreal, QC, CanadaHQ recorded Nov 6, 202651-20058 contacts →

Exact match

“Fondée en 1947, Les Entreprises Électriques L.M, s'est taillée la réputation d'une organisation dynamique et efficace dans la vente et la réparation d'équipement électriques…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchCambridge, AustraliaHQ recorded Nov 6, 202651-20057 contacts →

Exact match

“Do you need a High Voltage partner who can design, commission and maintain your system, whilst providing you the peace of mind that it's been done right?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSacramento, United StatesHQ recorded Nov 6, 202651-20052 contacts →

Exact match

“TJ|H2b Analytical Services is a full service laboratory that offers analytical testing and diagnostic evaluation of oil and gas insulated electrical equipment at our global lab…”

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

Showing 25 of 941 generator diagnostic services worldwide

See the full list, filter by size, metro and specialty, and access 4,383 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Generator diagnostic services worldwide at a glance

As of Nov 6, 2026
34.6%Verified-email coverage
13.4Average contacts per company
11-50Median size (employees)
1.4%Largest-city concentration · Sao Paulo
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
454
11-50
323
51-200
108
201-500
24
501-1,000
6
1,001-5,000
2
5,001-10,000
2

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 generator diagnostic services are linked below.
What qualifies
Company records worldwide whose business descriptions match “generator diagnostic services” 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 4,383 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.

Generator diagnostic services by location

5 lists · largest first

Every Generator diagnostic services 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 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 “generator diagnostic services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many generator diagnostic services are there worldwide?

RevenueBase identified 941 company matches for generator diagnostic services 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?

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

Which country has the most generator diagnostic services?

The United States leads with 173 companies, followed by Brazil (94) and the United Kingdom (83). Every generator diagnostic services list by country and city is linked on this page.

Which city has the most generator diagnostic services?

Sao Paulo leads with 13 company records, followed by Chennai (7) and Dammam (7).

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 4,383 professional contacts with verified work emails tracked across these 941 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.