Company lists · Data refreshed November 2026

Top 25 Diesel generator maintenance services worldwide

RevenueBase identified 3,716 company matches for diesel generator maintenance services worldwide as of November 2026 and tracks 38,273 professional contacts across them, including 8,151 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for diesel generator maintenance 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 diesel generator maintenance 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
3,716Companies
38,273Contacts tracked
8,151Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest diesel generator maintenance services worldwide

Ranked by team size
Top 25 of 3,716 company matches for diesel generator maintenance 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 matchMelrose Park, IL, United StatesHQ recorded Nov 6, 2026n/a1,518 contacts →

Exact match

“We are a full service turnkey provider for the power generation industry and those industries generating their own power as a means to an end.”

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 matchMumbai, IndiaHQ recorded Nov 6, 2026501-1,000900 contacts →

Exact match

“Powerica is a leading manufacturer of Cummins Diesel and Gas Generators in India.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchSarzedo, BrazilHQ recorded Nov 6, 2026501-1,000718 contacts →

Exact match

“The DATA Engenharia is installed in a green area of m2, with m2 of constructed area, in the municipality of Sarzedo (industrial region in the vicinity of Belo Horizonte / MG).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchLarne, United KingdomHQ recorded Nov 6, 20261,001-5,000509 contacts →

Exact match

“Founded in 1966, FG Wilson is a leading global supplier of diesel generator sets with a strong heritage of quality, support and value.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchSerra, BrazilHQ recorded Nov 6, 2026501-1,000443 contacts →

Exact match

“CONTRATOS DE MANUTENÇÃO A Tereme oferece a seus clientes soluções de manutenção global ou parcial dos equipamentos e instalações elétricas de uma planta industrial.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchLatham, OH, United StatesHQ recorded Nov 6, 2026501-1,000403 contacts →

Exact match

“Mechanical Dynamics & Analysis (MD & A) provides power generation companies around the globe with a full-service OEM alternative for services, parts, and repairs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchAberdeen, United KingdomHQ recorded Nov 6, 2026201-500340 contacts →

Exact match

“RWG (Repair & Overhauls) Limited is a Siemens Energy business.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchSan Javier, SpainHQ recorded Nov 6, 2026501-1,000332 contacts →

Exact match

“HIMOINSA is a global corporation that designs, manufactures and distributes power generation equipment worldwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLahore, PakistanHQ recorded Nov 6, 20261,001-5,000287 contacts →

Exact match

“Hitech Network (Pvt.) Limited is a dynamic group striving to re-define the energy industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMandaluyong City, PhilippinesHQ recorded Nov 6, 2026201-500274 contacts →

Exact match

“First Multi-Tech Industrial and Development Corporation (FMIDC) is a provider of power solutions and preventive maintenance to different industries, predominantly telecoms.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchZwijndrecht, BelgiumHQ recorded Nov 6, 2026201-500243 contacts →

Exact match

“Howden Maintenance Partners is part of Chart Industries and is a growing service company within the group, specializing in the maintenance, repair, and overhaul of industrial…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchAirdrie, CanadaHQ recorded Nov 6, 2026201-500236 contacts →

Exact match

“TransCanada Turbines (TCT) is the sole authorized overhaul, repair and maintenance service provider for Siemens and General Electric (GE) aeroderivative industrial gas turbines…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBandung, IndonesiaHQ recorded Nov 6, 202651-200225 contacts →

Exact match

“Power Generation Services & Repairs for many more different types of Rotating Equipments & Turbomachinery, Accessories & Parts.* Field Services Division * In Shop Repair * Turbo…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchDubai, United Arab EmiratesHQ recorded Nov 6, 2026201-500216 contacts →

Exact match

“Precision Industries, Your Trusted Partner for Reliable Diesel Power Solutions in MEA Based in Dubai, UAE, Precision Industries® delivers custom diesel generators, industrial…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchNew York, NY, United StatesHQ recorded Nov 6, 2026201-500212 contacts →

Exact match

“GenServe helps businesses keep their power systems ready when it matters most.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchSão Bernardo Do Campo, BrazilHQ recorded Nov 6, 202651-200210 contacts →

Exact match

“A ENERG Geradores atua desde 2003 oferecendo soluções completas em segurança energética para operações onde falhar não é uma opção.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSan Leandro, CA, United StatesHQ recorded Nov 6, 20261,001-5,000196 contacts →

Exact match

“Peterson Power Systems serves Northern California, western Oregon, and southern Washington, providing Caterpillar diesel and natural gas engines for power generation, as well as…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMississauga, ON, CanadaHQ recorded Nov 6, 202651-200192 contacts →

Exact match

“Critical Power.it’s all we do Delivering safe, reliable generator solutions and offering long-term protection for your complete power generation system is what Total Power excels…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact 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
21Exact matchCaracas, VenezuelaHQ recorded Nov 6, 2026201-500162 contacts →

Exact match

“Somos una empresa fundada en el año 1975, especializada en el área de generación eléctrica.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMapusa, IndiaHQ recorded Nov 6, 2026201-500157 contacts →

Exact match

“A flagship of the Pai Kane Group, we are a leading manufacturer of Diesel and Gas generator sets based in India and with manufacturing facilities in India and UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchMaracaibo, VenezuelaHQ recorded Nov 6, 202651-200153 contacts →

Exact match

“Empresa líder en el servicio integral especializado de equipos de transformación de energía, experta en los sectores Industrial, Eléctrico, Petroquímico y Petróleo & Gas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact 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
25Exact matchJakarta Timur, IndonesiaHQ recorded Nov 6, 202651-200133 contacts →

Exact match

“Established in October 2008, PT.”

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

Showing 25 of 3,716 diesel generator maintenance services worldwide

See the full list, filter by size, metro and specialty, and access 8,151 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Diesel generator maintenance services worldwide at a glance

As of Nov 6, 2026
21.3%Verified-email coverage
10.3Average contacts per company
11-50Median size (employees)
0.9%Largest-city concentration · Sao Paulo
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,638
11-50
1,363
51-200
483
201-500
107
501-1,000
24
1,001-5,000
11
5,001-10,000
5
10001+
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 diesel generator maintenance services are linked below.
What qualifies
Company records worldwide whose business descriptions match “diesel generator maintenance 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 8,151 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.

Diesel generator maintenance services by location

16 lists · largest first

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

How many diesel generator maintenance services are there worldwide?

RevenueBase identified 3,716 company matches for diesel generator maintenance 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?

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

Which country has the most diesel generator maintenance services?

The United States leads with 762 companies, followed by Brazil (412) and India (309). Every diesel generator maintenance services list by country and city is linked on this page.

Which city has the most diesel generator maintenance services?

Sao Paulo leads with 34 company records, followed by Bangalore (33) and Istanbul (28).

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 8,151 professional contacts with verified work emails tracked across these 3,716 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.

Ready to reach these companies? Verified emails and direct dials for all 3,716 diesel generator maintenance services worldwide. 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.