Company lists · Data refreshed October 2026

Top 25 Downstream petroleum contractors based in Canada

RevenueBase identified 303 company matches for downstream petroleum contractors associated with Canada as of October 2026 and tracks 13,676 professional contacts across them, including 3,850 with verified work emails. Calgary is the largest hub.

This list covers company matches for downstream petroleum 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 11, 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 11, 2026 How this list was built
303Companies
13,676Contacts tracked
3,850Verified emails
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The 25 largest downstream petroleum contractors based in Canada

Ranked by team size
Top 25 of 303 company matches for downstream petroleum contractors based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 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 11, 20265,001-10,0004,275 contacts →

Exact match

“After more than a century, Imperial continues to be an industry leader in applying technology and innovation to responsibly develop Canada’s energy resources.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
2Exact matchCalgary, AB, CanadaHQ recorded Oct 11, 20261,001-5,000882 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
3Exact matchCalgary, AB, CanadaHQ recorded Oct 11, 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 11, 2026 · View company records in RevenueBase
4Exact matchMontréal, QC, CanadaHQ recorded Oct 11, 2026201-500415 contacts →

Exact match

“GCM Consultants has delivered, for over 25 years, high-performance engineering services through inspired resources who hail from industry.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
5Exact matchEdmonton, AB, CanadaHQ recorded Oct 11, 2026501-1,000282 contacts →

Exact match

“Thermo Design (TDE) is an innovative energy solutions company and a recognized leader in the design and engineering, fabrication, manufacturing, construction management…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
6Exact matchSherwood Park, AB, CanadaHQ recorded Oct 11, 2026501-1,000272 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
7Exact matchCalgary, AB, CanadaHQ recorded Oct 11, 2026201-500271 contacts →

Exact match

“Scovan is an industry-leading EPFC, specializing in delivering innovation and expertise across energy sector projects.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
8Exact matchCalgary, AB, CanadaHQ recorded Oct 11, 2026201-500213 contacts →

Exact match

“Gas Liquids Engineering (GLE) is a Calgary, Alberta based engineering services provider.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
9Exact matchNisku, AB, CanadaHQ recorded Oct 11, 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 11, 2026 · View company records in RevenueBase
10Exact matchStrathmore, AB, CanadaHQ recorded Oct 11, 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 11, 2026 · View company records in RevenueBase
11Exact matchSaint John, NB, CanadaHQ recorded Oct 11, 2026501-1,000194 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
12Exact matchCalgary, AB, CanadaHQ recorded Oct 11, 2026201-500190 contacts →

Exact match

“Over 65 years strong, Arnett & Burgess Energy Services (A&B) provides pipeline and facility construction, pipeline integrity, pipeline coating, heavy civil earthworks &…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
13Exact matchParadise, NL, CanadaHQ recorded Oct 11, 2026201-500179 contacts →

Exact match

“RothLochston Constructors Inc.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14Exact matchCalgary, AB, CanadaHQ recorded Oct 11, 2026201-500144 contacts →

Exact match

“EPFC is a diverse team of professionals with extensive experience in engineering, procurement, fabrication, construction, commission and start-up, and operations.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15Exact matchCalgary, AB, CanadaHQ recorded Oct 11, 2026201-500136 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
16Exact matchMississauga, ON, CanadaHQ recorded Oct 11, 202651-200128 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
17Exact matchCalgary, AB, CanadaHQ recorded Oct 11, 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 11, 2026 · View company records in RevenueBase
18Exact matchCalgary, AB, CanadaHQ recorded Oct 11, 202651-200126 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19Exact matchRocky Mountain House, AB, CanadaHQ recorded Oct 11, 2026501-1,000114 contacts →

Exact match

“Bunch Welding / Bunch Projects is an integrated construction-led EPC delivering facility projects across Western Canada’s energy sector.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
20Exact matchSherbrooke, QC, CanadaHQ recorded Oct 11, 2026201-500104 contacts →

Exact match

“Le Groupe PMI a pour mission de développer une offre de services complète pour la réalisation de projets industriels et de maintenance pour l'ensemble des industries primaires…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
21Exact matchCalgary, AB, CanadaHQ recorded Oct 11, 2026201-500100 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
22Exact matchCalgary, AB, CanadaHQ recorded Oct 11, 202651-20090 contacts →

Exact match

“Providing Excellence and Innovative Solutions.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
23Exact matchBoucherville, QC, CanadaHQ recorded Oct 11, 202651-20085 contacts →

Exact match

“Ultragen a été fondée il y a plus de trente ans afin d’offrir des services de pointe en ingénierie.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
24Exact matchCalgary, AB, CanadaHQ recorded Oct 11, 202651-20081 contacts →

Exact match

“Tridyne Projects Corporation is a Calgary-based consulting firm which provides our Clients with Engineering, Procurement and Construction Management services in the Oil and Gas…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
25Exact matchCorunna, ON, CanadaHQ recorded Oct 11, 2026501-1,00079 contacts →

Exact match

“Established in 1979 LamSar Inc.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase

Showing 25 of 303 downstream petroleum contractors based in Canada

See the full list, filter by size, metro and specialty, and access 3,850 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Downstream petroleum contractors based in Canada at a glance

As of Oct 11, 2026
28.2%Verified-email coverage
45.1Average contacts per company
11-50Median size (employees)
32.7%Largest-city concentration · Calgary
Oct 11, 2026Page data refreshed

Companies by employee count

1-10
84
11-50
87
51-200
82
201-500
34
501-1,000
11
1,001-5,000
3
5,001-10,000
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 303 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 “downstream petroleum 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 3,850 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 11, 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.

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

How many downstream petroleum contractors are there based in Canada?

RevenueBase identified 303 company matches for downstream petroleum 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?

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

Which city has the most downstream petroleum contractors?

Calgary leads with 99 company records, followed by Edmonton (21) and Nisku (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 3,850 professional contacts with verified work emails tracked across these 303 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 11, 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.