Company lists · Data refreshed October 2026

Top 25 Oil and gas maintenance contractors based in Canada

RevenueBase identified 314 company matches for oil and gas maintenance contractors associated with Canada as of October 2026 and tracks 6,578 professional contacts across them, including 1,868 with verified work emails. Calgary is the largest hub.

This list covers company matches for oil and gas 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
314Companies
6,578Contacts tracked
1,868Verified emails
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The 25 largest oil and gas maintenance contractors based in Canada

Ranked by team size
Top 25 of 314 company matches for oil and gas 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 matchCalgary, AB, CanadaHQ recorded Oct 22, 20261,001-5,000646 contacts →

Exact match

“FLINT is a leading provider for Maintenance & Turnarounds, Wear Technologies, Fabrication, Modularization & Machining, Facility Construction, Pipeline Installation & Integrity…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
2Exact matchOkotoks, AB, CanadaHQ recorded Oct 22, 2026501-1,000324 contacts →

Exact match

“OCL Group Inc.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
3Exact matchPort Coquitlam, BC, CanadaHQ recorded Oct 22, 2026501-1,000322 contacts →

Exact match

“CIMS Limited Partnership is 100% Canadian Owned and Operated.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
4Exact matchNisku, AB, CanadaHQ recorded Oct 22, 202651-200211 contacts →

Exact match

“Melloy Industrial is a trusted leader in heavy industrial maintenance, turnarounds, project execution and fabrication services across Canada.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
5Exact matchStrathmore, AB, CanadaHQ recorded Oct 22, 2026201-500208 contacts →

Exact match

“Magnum Services is shaping North America’s Energy and Infrastructure through innovation and in-house capability.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
6Exact matchEdmonton, AB, CanadaHQ recorded Oct 22, 2026201-500206 contacts →

Exact match

“FourQuest Energy is a global leader in pre-commissioning, commissioning, and pipeline services for the energy industry.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
7Exact matchEdmonton, AB, CanadaHQ recorded Oct 22, 202651-200179 contacts →

Exact match

“Banister Pipeline Limited Partnership is an oil & energy company based out of Edmonton, Alberta, Canada.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
8Exact matchCalgary, AB, CanadaHQ recorded Oct 22, 20261,001-5,000178 contacts →

Exact match

“Steelhaus boldly drives the market with innovative energy solutions; fusing practical, field proven experience, adaptable engineering, integrated manufacturing, and uncompromising…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
9Exact matchSherwood Park, AB, CanadaHQ recorded Oct 22, 2026201-500147 contacts →

Exact match

“Blackstone believes that great people make great businesses.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
10Exact matchCalgary, AB, CanadaHQ recorded Oct 22, 2026201-500127 contacts →

Exact match

“STRAIT Group is a dynamic construction and maintenance company offering pipeline, mechanical, and manufacturing services to western Canada’s energy sector.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
11Exact matchBrooks, AB, CanadaHQ recorded Oct 22, 2026501-1,000107 contacts →

Exact match

“League Projects Ltd provides complete pipeline and facility construction services, integrity repairs, modular construction and fabrication through the use of an experienced…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
12Exact matchRocky Mountain House, AB, CanadaHQ recorded Oct 22, 2026201-500105 contacts →

Exact match

“TOMCO Group of Companies, a family-owned organization headquartered in Rocky Mountain House, Alberta, is celebrating 25 years.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
13Exact matchSpruce Grove, AB, CanadaHQ recorded Oct 22, 2026201-500100 contacts →

Exact match

“Got questions or are interested in a particular service?”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
14Exact matchFort St. John, BC, CanadaHQ recorded Oct 22, 2026201-500100 contacts →

Exact match

“Macro was founded in 1994 and since has become an industry leading Pipeline/Facility Maintenance and Construction Company representing Northeastern BC in Canada’s Oil and Gas…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
15Exact matchCalgary, AB, CanadaHQ recorded Oct 22, 2026201-50099 contacts →

Exact match

“Established in 2003, Surepoint Group is a premier energy services company specializing in compression, power generation, electrical and instrumentation, automation, EV charging…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
16Exact matchSlave Lake, AB, CanadaHQ recorded Oct 22, 202651-20080 contacts →

Exact match

“Headquartered in Slave Lake, Alberta.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
17Exact 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
18Exact 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
19Exact matchGrande Prairie, AB, CanadaHQ recorded Oct 22, 2026201-50053 contacts →

Exact match

“Purnell Energy Services is an oil & gas servicing company.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
20Exact matchAthabasca, AB, CanadaHQ recorded Oct 22, 2026201-50051 contacts →

Exact match

“Lincoln County Oilfield Services (LCOS) is a full spectrum Pipeline & Facility Construction service provider proudly serving the Upstream and Midstream Oil & Gas sector in Western…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
21Exact matchSudbury, ON, CanadaHQ recorded Oct 22, 202651-20049 contacts →

Exact match

“PSL is one of the fastest growing mechanical service providers in Northern Ontario.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
22Exact matchWhitecourt, AB, CanadaHQ recorded Oct 22, 2026201-50049 contacts →

Exact match

“At Carbonex, we strive to provide innovative and safe solutions for construction and maintenance that exceed client expectations.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
23Exact matchCalgary, AB, CanadaHQ recorded Oct 22, 202651-20047 contacts →

Exact match

“Mader are heavy equipment maintenance experts delivering quality repairs, preventative maintenance and expert diagnostics.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
24Exact matchCalgary, AB, CanadaHQ recorded Oct 22, 202651-20046 contacts →

Exact match

“Sublatus is a specialized heavy equipment company focused on the beginning and end of life stages in the oil and gas sector.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
25Exact matchLethbridge, AB, CanadaHQ recorded Oct 22, 202651-20046 contacts →

Exact match

“We support leading oilfield service companies with new equipment solutions, equipment repair and refurb, with equipment in operation across the world.”

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

Showing 25 of 314 oil and gas maintenance contractors based in Canada

See the full list, filter by size, metro and specialty, and access 1,868 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Oil and gas maintenance contractors based in Canada at a glance

As of Oct 22, 2026
28.4%Verified-email coverage
20.9Average contacts per company
11-50Median size (employees)
13.7%Largest-city concentration · Calgary
Oct 22, 2026Page data refreshed

Companies by employee count

1-10
85
11-50
114
51-200
69
201-500
34
501-1,000
7
1,001-5,000
4
10001+
1

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 314 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 “oil and gas 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 1,868 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.

Oil and gas maintenance contractors by metro

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

How many oil and gas maintenance contractors are there based in Canada?

RevenueBase identified 314 company matches for oil and gas 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?

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

Which city has the most oil and gas maintenance contractors?

Calgary leads with 43 company records, followed by Edmonton (21) and Grande Prairie (14).

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 1,868 professional contacts with verified work emails tracked across these 314 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.