Company lists · Data refreshed September 2026

Top 25 Oil and gas construction companies based in Canada

Name: Oil and gas construction companies based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 527 companies tracked

RevenueBase identified 527 oil and gas construction companies headquartered in Canada as of September 2026 and tracks 21,234 professional contacts across them, including 7,733 with verified work emails. Calgary is the largest hub.

This list covers oil and gas construction companies headquartered in Canada, 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 17, 2026.

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 17, 2026 86% judged on-target in blind review

527Companies

21,234Contacts tracked

7,733Verified emails

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The 25 largest oil and gas construction companies based in Canada

Ranked by team size

Top 25 of 527 oil and gas construction companies based in Canada, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to oil and gas construction 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	PTW Energy Services	Partial evidence	Rocky View County, AB, CanadaHQ checked Sep 17, 2026	5,001-10,000	1,195 contacts →
	Partial evidence “PTW Energy Services is Western Canada’s largest industrial solutions provider, delivering electrical and instrumentation (E&I) maintenance, construction, fabrication, and…” Source: RevenueBase Database · checked Sep 17, 2026
2	Bantrel CO	Partial evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	501-1,000	991 contacts →
	Partial evidence “Bantrel is an engineering, procurement, construction and construction management (EPCM) services company.” Source: RevenueBase Database · checked Sep 17, 2026
3	Stuart Olson INC	Partial evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	1,001-5,000	871 contacts →
	Partial evidence “At Stuart Olson, we're not just dedicated to the Canadian construction and industrial services market – we're passionate about turning projects into success stories.” Source: RevenueBase Database · checked Sep 17, 2026
4	Allnorth Consultants Limited	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 17, 2026	501-1,000	659 contacts →
	Partial evidence “Allnorth is a multi-disciplinary engineering, project delivery, and construction services company.” Source: RevenueBase Database · checked Sep 17, 2026
5	Flint Corp	Partial evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	1,001-5,000	635 contacts →
	Partial evidence “FLINT is a leading provider for Maintenance & Turnarounds, Wear Technologies, Fabrication, Modularization & Machining, Facility Construction, Pipeline Installation & Integrity…” Source: RevenueBase Database · checked Sep 17, 2026
6	E.S. FOX Limited	Indirect evidence	Niagara Falls, ON, CanadaHQ checked Sep 17, 2026	1,001-5,000	623 contacts →
	Indirect evidence “Established in 1934, E.S.” Source: RevenueBase Database · checked Sep 17, 2026
7	Equinox Engineering LTD	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	201-500	397 contacts →
	Indirect evidence “Established in 1997, Equinox is a distinguished EPCM service provider globally.” Source: RevenueBase Database · checked Sep 17, 2026
8	Morgan Construction And Environmental LTD	Partial evidence	Edmonton, AB, CanadaHQ checked Sep 17, 2026	501-1,000	364 contacts →
	Partial evidence “Morgan Construction and Environmental Ltd."Delivering Project Excellence"- is a civil construction and environmental projects company headquartered in Edmonton, Alberta.” Source: RevenueBase Database · checked Sep 17, 2026
9	Michels Canada	Indirect evidence	Nisku, AB, CanadaHQ checked Sep 17, 2026	10001+	357 contacts →
	Indirect evidence “Michels Canada is an established contractor, leading the industry with innovative methods in infrastructure, power and energy.” Source: RevenueBase Database · checked Sep 17, 2026
10	RAM	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 17, 2026	201-500	329 contacts →
	Indirect evidence “RAM Consulting (RAM) is a full-service project delivery firm founded in 2007 with offices in Western Canada.” Source: RevenueBase Database · checked Sep 17, 2026
11	Thompson Construction Group	Partial evidence	Spruce Grove, AB, CanadaHQ checked Sep 17, 2026	1,001-5,000	298 contacts →
	Partial evidence “Thompson Construction Group is a leading Alberta-based construction firm specializing in heavy civil earthworks, underground utilities, vertical construction, and industrial…” Source: RevenueBase Database · checked Sep 17, 2026
12	OCL Group	Indirect evidence	Okotoks, AB, CanadaHQ checked Sep 17, 2026	501-1,000	293 contacts →
	Indirect evidence “OCL Group Inc.” Source: RevenueBase Database · checked Sep 17, 2026
13	Compass Energy Systems	Indirect evidence	Rocky View County, AB, CanadaHQ checked Sep 17, 2026	501-1,000	287 contacts →
	Indirect evidence “Compass, which operates as Compass Energy Systems in Canada and Compass Compression Solutions in the US, specializes in the engineering, design, and fabrication of powerful…” Source: RevenueBase Database · checked Sep 17, 2026
14	FWS	Partial evidence	Winnipeg, MB, CanadaHQ checked Sep 17, 2026	501-1,000	284 contacts →
	Partial evidence “With 70 years of experience, FWS provides integrated project development, design, construction, construction management, commissioning and maintenance services to several industry…” Source: RevenueBase Database · checked Sep 17, 2026
15	Integral Energy Services LTD	Indirect evidence	Airdrie, AB, CanadaHQ checked Sep 17, 2026	501-1,000	281 contacts →
	Indirect evidence “Join the Integral team!” Source: RevenueBase Database · checked Sep 17, 2026
16	Thermo Design Engineering LTD	Partial evidence	Edmonton, AB, CanadaHQ checked Sep 17, 2026	501-1,000	278 contacts →
	Partial evidence “Thermo Design (TDE) is an innovative energy solutions company and a recognized leader in the design and engineering, fabrication, manufacturing, construction management…” Source: RevenueBase Database · checked Sep 17, 2026
17	Scovan	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	201-500	265 contacts →
	Indirect evidence “Scovan is an industry-leading EPFC, specializing in delivering innovation and expertise across energy sector projects.” Source: RevenueBase Database · checked Sep 17, 2026
18	DCM Group INC	Strong evidence	Sherwood Park, AB, CanadaHQ checked Sep 17, 2026	501-1,000	258 contacts →
	Strong evidence “For over 70 years, DCM Group has been a vital supporter and construction partner of some of Canada’s most defining industries – oil & gas, petrochemicals, mining, power…” Source: RevenueBase Database · checked Sep 17, 2026
19	TWD Technologies LTD	Indirect evidence	Burlington, ON, CanadaHQ checked Sep 17, 2026	201-500	227 contacts →
	Indirect evidence “TWD is a leading global engineering firm focusing on traditional and transitional energy projects and innovative infrastructure projects.” Source: RevenueBase Database · checked Sep 17, 2026
20	Magnum Services	Indirect evidence	Strathmore, AB, CanadaHQ checked Sep 17, 2026	201-500	205 contacts →
	Indirect evidence “Magnum Services is shaping North America’s Energy and Infrastructure through innovation and in-house capability.” Source: RevenueBase Database · checked Sep 17, 2026
21	Alstar Group	Partial evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	501-1,000	204 contacts →
	Partial evidence “Alstar Group has been providing quality, cost-effective, energy construction services in Western Canada since 1969.” Source: RevenueBase Database · checked Sep 17, 2026
22	GAS Liquids Engineering	Partial evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	201-500	203 contacts →
	Partial evidence “Gas Liquids Engineering (GLE) is a Calgary, Alberta based engineering services provider.” Source: RevenueBase Database · checked Sep 17, 2026
23	Mastec Canada	Partial evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	1,001-5,000	192 contacts →
	Partial evidence “MasTec Canada delivers a broad range of construction solutions.” Source: RevenueBase Database · checked Sep 17, 2026
24	Arnett & Burgess Energy Services	Partial evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	201-500	190 contacts →
	Partial evidence “Over 65 years strong, Arnett & Burgess Energy Services (A&B) provides pipeline and facility construction, pipeline integrity, pipeline coating, heavy civil earthworks &…” Source: RevenueBase Database · checked Sep 17, 2026
25	Sunny Corner Enterprises INC	Indirect evidence	Miramichi, NB, CanadaHQ checked Sep 17, 2026	201-500	188 contacts →
	Indirect evidence “Since 1965, we’ve worked hand-in-hand with clients across the world to build, manufacture, and provide tools, materials, and infrastructure needed to make projects come to life.” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: oil and gas construction companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names oil and gas construction companies.
Partial evidence: Its own public description names part of oil and gas construction companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oil and gas construction companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 527 oil and gas construction companies based in Canada

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Oil and gas construction companies based in Canada at a glance

As of Sep 17, 2026

36.4%Verified-email coverage

40.3Average contacts per company

11-50Median size (employees)

30.7%Largest-city concentration · Calgary

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

125

11-50

148

51-200

140

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 527 companies.

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 oil and gas construction 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.
What qualifies: Companies headquartered in Canada whose own description of what they do matches “oil and gas construction 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 oil and gas construction 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 oil and gas construction companies, and records with no verified work email. Companies headquartered outside Canada are excluded even when they keep an office there.
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, 7,733 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 on September 17, 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.

Oil and gas construction companies by metro

Oil and gas construction companies in Calgary162
Oil and gas construction companies in Edmonton42

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 oil and gas construction 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 oil and gas construction companies are there based in Canada?

RevenueBase identified 527 oil and gas construction companies headquartered in Canada 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?

PTW Energy Services, headquartered in Rocky View County, tops this list with the largest team on record.

Which city has the most oil and gas construction companies?

Calgary leads with 162 headquartered companies, followed by Edmonton (42) and Grande Prairie (17).

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 7,733 verified decision-maker contacts tracked across these 527 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 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.