Company lists · Data refreshed September 2026

Top 25 Refinery expansion contractors based in Canada

Name: Refinery expansion contractors based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 408 companies tracked

RevenueBase identified 408 refinery expansion contractors headquartered in Canada as of September 2026 and tracks 15,865 professional contacts across them, including 5,973 with verified work emails. Calgary is the largest hub.

This list covers refinery expansion contractors 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

408Companies

15,865Contacts tracked

5,973Verified emails

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The 25 largest refinery expansion contractors based in Canada

Ranked by team size

Top 25 of 408 refinery expansion contractors 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 refinery expansion contractors: 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	Stuart Olson INC	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	1,001-5,000	871 contacts →
	Indirect 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
2	Allnorth Consultants Limited	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 17, 2026	501-1,000	659 contacts →
	Indirect evidence “Allnorth is a multi-disciplinary engineering, project delivery, and construction services company.” Source: RevenueBase Database · checked Sep 17, 2026
3	Flint Corp	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	1,001-5,000	635 contacts →
	Indirect 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
4	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
5	GCM Consultants	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 17, 2026	201-500	436 contacts →
	Indirect evidence “GCM Consultants has delivered, for over 25 years, high-performance engineering services through inspired resources who hail from industry.” Source: RevenueBase Database · checked Sep 17, 2026
6	Michels Canada	Partial evidence	Nisku, AB, CanadaHQ checked Sep 17, 2026	10001+	357 contacts →
	Partial 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
7	Co-Op Refinery Complex	Partial evidence	Regina, CanadaHQ checked Sep 17, 2026	1,001-5,000	352 contacts →
	Partial evidence “Fuel Your Career at the Co-op Refinery Complex.” Source: RevenueBase Database · checked Sep 17, 2026
8	Cims Limited Partnership	Indirect evidence	Port Coquitlam, BC, CanadaHQ checked Sep 17, 2026	501-1,000	312 contacts →
	Indirect evidence “CIMS Limited Partnership is 100% Canadian Owned and Operated.” Source: RevenueBase Database · checked Sep 17, 2026
9	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
10	Thermo Design Engineering LTD	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 17, 2026	501-1,000	278 contacts →
	Indirect 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
11	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
12	DCM Group INC	Indirect evidence	Sherwood Park, AB, CanadaHQ checked Sep 17, 2026	501-1,000	258 contacts →
	Indirect 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
13	Moreau	Indirect evidence	Rouyn-noranda, QC, CanadaHQ checked Sep 17, 2026	1,001-5,000	252 contacts →
	Indirect evidence “Moreau was founded in 1977 by Mr.” Source: RevenueBase Database · checked Sep 17, 2026
14	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
15	Phoenix Industrial Group Of Companies	Indirect evidence	Nisku, AB, CanadaHQ checked Sep 17, 2026	501-1,000	220 contacts →
	Indirect evidence “As an integrated single source construction, maintenance, and fabrication constructor, Phoenix Industrial is able to provide a large variety of services to industries throughout…” Source: RevenueBase Database · checked Sep 17, 2026
16	Tesc Contracting	Indirect evidence	Sudbury, ON, CanadaHQ checked Sep 17, 2026	201-500	206 contacts →
	Indirect evidence “ABOUT TESC brings a special combination of skill, grit, and proactivity.” Source: RevenueBase Database · checked Sep 17, 2026
17	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
18	GAS Liquids Engineering	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	201-500	203 contacts →
	Indirect evidence “Gas Liquids Engineering (GLE) is a Calgary, Alberta based engineering services provider.” Source: RevenueBase Database · checked Sep 17, 2026
19	Melloy Industrial Services INC	Indirect evidence	Nisku, AB, CanadaHQ checked Sep 17, 2026	51-200	198 contacts →
	Indirect evidence “Melloy Industrial is a trusted leader in heavy industrial maintenance, turnarounds, project execution and fabrication services across Canada.” Source: RevenueBase Database · checked Sep 17, 2026
20	Arnett & Burgess Energy Services	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	201-500	190 contacts →
	Indirect 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
21	Lorneville	Indirect evidence	Saint John, NB, CanadaHQ checked Sep 17, 2026	501-1,000	187 contacts →
	Indirect evidence “With over 45 years of experience working on major projects for some of North America’s most prominent companies in large industrial sectors, Lorneville is an established leader in…” Source: RevenueBase Database · checked Sep 17, 2026
22	Tetranex Solutions INC	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	201-500	173 contacts →
	Indirect evidence “Tetranex Solutions is a multi-discipline engineering company specializing in industrial automation, electrical systems, process engineering, digital infrastructure and…” Source: RevenueBase Database · checked Sep 17, 2026
23	Rothlochston	Indirect evidence	Paradise, NL, CanadaHQ checked Sep 17, 2026	201-500	167 contacts →
	Indirect evidence “RothLochston Constructors Inc.” Source: RevenueBase Database · checked Sep 17, 2026
24	Epfc Corp	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	201-500	157 contacts →
	Indirect evidence “EPFC is a diverse team of professionals with extensive experience in engineering, procurement, fabrication, construction, commission and start-up, and operations.” Source: RevenueBase Database · checked Sep 17, 2026
25	Pipeworx LTD	Indirect evidence	Spruce Grove, AB, CanadaHQ checked Sep 17, 2026	501-1,000	143 contacts →
	Indirect evidence “Pipeworx Ltd is a leading oil and gas pipeline and facility construction company providing services across Western Canada.” 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: refinery expansion contractors. 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 refinery expansion contractors.
Partial evidence: Its own public description names part of refinery expansion contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name refinery expansion contractors. 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 408 refinery expansion contractors based in Canada

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Refinery expansion contractors based in Canada at a glance

As of Sep 17, 2026

37.6%Verified-email coverage

38.9Average contacts per company

11-50Median size (employees)

29.4%Largest-city concentration · Calgary

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

115

51-200

114

201-500

501-1,000

1,001-5,000

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 408 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 refinery expansion contractors, 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 “refinery expansion contractors”. 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 refinery expansion contractors), 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 refinery expansion contractors, 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, 5,973 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.

Refinery expansion contractors by metro

Refinery expansion contractors in Calgary120
Refinery expansion contractors in Edmonton33

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 refinery expansion contractors, 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 refinery expansion contractors are there based in Canada?

RevenueBase identified 408 refinery expansion contractors 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?

Stuart Olson INC, headquartered in Calgary, tops this list with the largest team on record.

Which city has the most refinery expansion contractors?

Calgary leads with 120 headquartered companies, followed by Edmonton (33) and Nisku (15).

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 5,973 verified decision-maker contacts tracked across these 408 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.