Company lists · Data refreshed October 2026

Top 25 Transformer maintenance contractors based in Canada

RevenueBase identified 197 company matches for transformer maintenance contractors associated with Canada as of October 2026 and tracks 3,261 professional contacts across them, including 1,242 with verified work emails. Calgary is the largest hub.

This list covers company matches for transformer maintenance contractors associated with Canada, 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 October 22, 2026.

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 Oct 22, 2026 How this list was built
197Companies
3,261Contacts tracked
1,242Verified emails
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The 25 largest transformer maintenance contractors based in Canada

Ranked by team size
Top 25 of 197 company matches for transformer maintenance contractors based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 22, 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 matchEdmonton, AB, CanadaHQ recorded Oct 22, 2026201-500344 contacts →

Exact match

“Delivering confidence for over 40 years.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
2Exact matchRegina, SK, CanadaHQ recorded Oct 22, 2026201-500193 contacts →

Exact match

“With experience manufacturing, repairing and servicing distribution equipment, Partner Technologies Inc.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
3Exact matchSurrey, BC, CanadaHQ recorded Oct 22, 2026201-500171 contacts →

Exact match

“A leader in specialized services for the high voltage electric power industry, Allteck's expertise ranges from design and installation to maintenance and repair of high voltage…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
4Exact matchMarkham, ON, CanadaHQ recorded Oct 22, 202651-200107 contacts →

Exact match

“Our mission at CES Transformers is to provide high-quality, reliable, and innovative transformer solutions that meet the evolving needs of our customers.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
5Exact matchCalgary, AB, CanadaHQ recorded Oct 22, 2026201-50099 contacts →

Exact match

“REV leads the electrical industry with flexible, durable, and reliable electrical solutions across diverse sectors.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
6Exact matchVernon, BC, CanadaHQ recorded Oct 22, 202611-5096 contacts →

Exact match

“TSBC Our Mission: Meeting our customers' project objectives by providing electrical services for industry.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
7Exact matchMississauga, ON, CanadaHQ recorded Oct 22, 202651-20089 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 · Oct 22, 2026 · View company records in RevenueBase
8Exact matchCalgary, AB, CanadaHQ recorded Oct 22, 2026501-1,00088 contacts →

Exact match

“RESA Power Canada company, is proud to service the Electrical Utility, Industrial, and Commercial markets across Canada and North America.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
9Exact matchBrampton, ON, CanadaHQ recorded Oct 22, 202651-20087 contacts →

Exact match

“For more than 20 years, Powersmiths has been an industry leader in engineering, manufacturing and selling innovative, customer-centric and energy-efficient electrical power…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
10Exact matchSaskatoon, SK, CanadaHQ recorded Oct 22, 2026501-1,00077 contacts →

Exact match

“Our philosophy is to hire the brightest minds and to have the best people in the industry working in satisfying yet challenging positions.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
11Exact matchVaughan, ON, CanadaHQ recorded Oct 22, 2026201-50073 contacts →

Exact match

“For over 30 years, Trans Power has established itself as the prime contractor to various utilities and industrial and commercial clients, providing the installation of high…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
12Exact matchPort Moody, BC, CanadaHQ recorded Oct 22, 202651-20066 contacts →

Exact match

“At Colwin Electrical Group, providing energy for life is what we do and how we do it.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
13Exact matchLondon, ON, CanadaHQ recorded Oct 22, 202651-20064 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
14Exact matchCharlesbourg, CanadaHQ recorded Oct 22, 202651-20061 contacts →

Exact match

“La Société Générale d’Électrotechnique (SGE) est issue du regroupement de trois entreprises soeurs, soit Gémitech, Lignec et Transmag Énergie, chacune spécialisée dans un champ de…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
15Exact matchGranby, QC, CanadaHQ recorded Oct 22, 202651-20059 contacts →

Exact match

“EnerServ is a growing company with highly skilled personnel, particularly in areas such as maintenance and repair of hydroelectric and thermal energy production equipment.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
16Exact matchHamilton, CanadaHQ recorded Oct 22, 202611-5055 contacts →

Exact match

“If your electrical equipment is more of a pain in the ass than an asset, it’s time to call Duke.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
17Exact matchNew Glasgow, NS, CanadaHQ recorded Oct 22, 202651-20053 contacts →

Exact match

“STARK International is an industry leader in providing oil services for transformers, hydraulic and lubrication oils.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
18Exact matchSherbrooke, QC, CanadaHQ recorded Oct 22, 202651-20051 contacts →

Exact match

“Surplec offers a centralized service for the sale, purchase, repair, rental, and testing of medium- and high-voltage transformers and equipment.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
19Exact matchMontreal, QC, CanadaHQ recorded Oct 22, 202651-20050 contacts →

Exact match

“With 90 years of expertise, Osmose is the trusted partner for utilities tackling aging infrastructure.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
20Exact matchWinnipeg, MB, CanadaHQ recorded Oct 22, 202611-5040 contacts →

Exact match

“Founded in 1993, ERLPhase began as a software and hardware engineering team developing transformer protection relays, with roots with the University of Manitoba.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
21Exact matchCambridge, ON, CanadaHQ recorded Oct 22, 202651-20038 contacts →

Exact match

“Cormorant Utility Services provides comprehensive solutions to the utility power sector through our four operating companies: PowerTel, EPTCON, OneLine Engineering, and PowerTraxx.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
22Exact matchTerrebonne, QC, CanadaHQ recorded Oct 22, 202651-20038 contacts →

Exact match

“MDL Énergie inc, une compagnie IPS, est un groupe d’ingénieurs et de techniciens bénéficiant d’une expertise dans les services en électrotechnique.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
23Exact matchBurnaby, BC, CanadaHQ recorded Oct 22, 202651-20037 contacts →

Exact match

“Since 1955 Beaver Electrical has been providing an exceptional transformer and motor services.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
24Exact matchSaskatoon, SK, CanadaHQ recorded Oct 22, 202611-5033 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
25Exact matchSherbrooke, QC, CanadaHQ recorded Oct 22, 202651-20033 contacts →

Exact match

“DUAL Électrotech inc.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase

Showing 25 of 197 transformer maintenance contractors based in Canada

See the full list, filter by size, metro and specialty, and access 1,242 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Transformer maintenance contractors based in Canada at a glance

As of Oct 22, 2026
38.1%Verified-email coverage
16.6Average contacts per company
11-50Median size (employees)
7.1%Largest-city concentration · Calgary
Oct 22, 2026Page data refreshed

Companies by employee count

1-10
88
11-50
65
51-200
34
201-500
5
501-1,000
2

Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 197 companies.

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.
What qualifies
Company records associated with Canada whose business descriptions match “transformer maintenance contractors” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 1,242 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 October 22, 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.

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 “transformer maintenance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many transformer maintenance contractors are there based in Canada?

RevenueBase identified 197 company matches for transformer maintenance contractors associated with Canada as of October 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?

Magna IV Engineering, A Sunbelt Solomon Company tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most transformer maintenance contractors?

Calgary leads with 14 company records, followed by Quebec (9) and Edmonton (8).

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 1,242 professional contacts with verified work emails tracked across these 197 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 October 22, 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.