Company lists · Data refreshed September 2026

Top 25 Oil and gas infrastructure contractors based in Calgary, Canada

Name: Oil and gas infrastructure contractors based in Calgary, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 159 companies tracked

RevenueBase identified 159 oil and gas infrastructure contractors headquartered in Calgary, Canada as of September 2026 and tracks 9,263 professional contacts across them, including 3,200 with verified work emails. Calgary is the largest hub.

This list covers oil and gas infrastructure contractors headquartered in Calgary, 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

159Companies

9,263Contacts tracked

3,200Verified emails

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The 25 largest oil and gas infrastructure contractors based in Calgary, Canada

Ranked by team size

Top 25 of 159 oil and gas infrastructure contractors based in Calgary, 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 infrastructure 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	Precision Drilling	Strong evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	5,001-10,000	2,471 contacts →
	Strong evidence “Precision is a leading provider of safe and High Performance, High-Value services to the oil and gas industry.” Source: RevenueBase Database · checked Sep 17, 2026
2	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
3	Surerus Murphy Joint Venture	Partial evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	501-1,000	498 contacts →
	Partial evidence “Surerus Murphy Joint Venture (SMJV) brings together two leading infrastructure companies, Surerus Pipeline Inc.” Source: RevenueBase Database · checked Sep 17, 2026
4	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
5	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
6	Foremost	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	501-1,000	235 contacts →
	Indirect evidence “Foremost has been a central player in the Western Canadian energy story going back to 1948, when our energy equipment product lines were under the Universal Industries name.” Source: RevenueBase Database · checked Sep 17, 2026
7	Alstar Group	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	501-1,000	204 contacts →
	Indirect evidence “Alstar Group has been providing quality, cost-effective, energy construction services in Western Canada since 1969.” Source: RevenueBase Database · checked Sep 17, 2026
8	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
9	Mastec Canada	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	1,001-5,000	192 contacts →
	Indirect evidence “MasTec Canada delivers a broad range of construction solutions.” Source: RevenueBase Database · checked Sep 17, 2026
10	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
11	Whissell Contracting LTD	Partial evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	201-500	189 contacts →
	Partial evidence “Whissell was founded in Calgary in 1970 as a water and sewer contractor.” Source: RevenueBase Database · checked Sep 17, 2026
12	Steelhaus Technologies INC	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	1,001-5,000	184 contacts →
	Indirect evidence “Steelhaus boldly drives the market with innovative energy solutions; fusing practical, field proven experience, adaptable engineering, integrated manufacturing, and uncompromising…” Source: RevenueBase Database · checked Sep 17, 2026
13	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
14	Cornerstone Engineering LTD	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	201-500	136 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
15	Flexpipe	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	501-1,000	135 contacts →
	Indirect evidence “With quick, cost-effective installation and the ability to withstand high pressures, temperatures and corrosion, Flexpipe composite pipe can be counted on for production…” Source: RevenueBase Database · checked Sep 17, 2026
16	Surepoint Group	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	201-500	133 contacts →
	Indirect evidence “Established in 2003, Surepoint Group is a premier energy services company specializing in compression, power generation, electrical and instrumentation, automation, EV charging…” Source: RevenueBase Database · checked Sep 17, 2026
17	Strait	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	201-500	126 contacts →
	Indirect evidence “STRAIT Group is a dynamic construction and maintenance company offering pipeline, mechanical, and manufacturing services to western Canada’s energy sector.” Source: RevenueBase Database · checked Sep 17, 2026
18	Keywest Projects LTD	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	201-500	105 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
19	CSV Midstream Solutions	Partial evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	51-200	90 contacts →
	Partial evidence “CSV Midstream Solutions offers complete midstream solutions and innovative business models for natural gas and natural gas liquids (NGL) processing.” Source: RevenueBase Database · checked Sep 17, 2026
20	Tridyne Projects Corporation	Strong evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	51-200	89 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
21	Canelson Drilling INC	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	501-1,000	89 contacts →
	Indirect evidence “Drilling Rig Manufacturer & Operation Solutions CanElson Drilling Inc.(“CanElson”) is a leading provider of oilfield services.” Source: RevenueBase Database · checked Sep 17, 2026
22	Stratus Electrical & Instrumentation	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	51-200	82 contacts →
	Indirect evidence “Stratus is an electrical and instrumentation company capable of a broad range of projects and capable of servicing any location in Western Canada.” Source: RevenueBase Database · checked Sep 17, 2026
23	Millenia Engineering	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	51-200	80 contacts →
	Indirect evidence “Providing Excellence and Innovative Solutions.” Source: RevenueBase Database · checked Sep 17, 2026
24	Acero Engineering	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	51-200	77 contacts →
	Indirect evidence “Responsive, Flexible, Efficient Acero Engineering Inc.(“Acero”) is a Calgary based, full-service engineering, procurement, and construction management (EPCM) company focused on…” Source: RevenueBase Database · checked Sep 17, 2026
25	Citadel Drilling LTD	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	51-200	74 contacts →
	Indirect evidence “To put it bluntly, Citadel Drilling is different.” 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 infrastructure 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 oil and gas infrastructure contractors.
Partial evidence: Its own public description names part of oil and gas infrastructure contractors, 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 infrastructure 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 159 oil and gas infrastructure contractors based in Calgary, Canada

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Oil and gas infrastructure contractors based in Calgary, Canada at a glance

As of Sep 17, 2026

34.5%Verified-email coverage

58.3Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · Calgary

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured across the whole Canada list rather than for Calgary, so it is reported there. Company counts and contact totals on this page are exact for Calgary, over 159 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 infrastructure 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 Calgary, Canada whose own description of what they do matches “oil and gas infrastructure 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 oil and gas infrastructure 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 oil and gas infrastructure contractors, and records with no verified work email. Companies headquartered outside Calgary 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, 3,200 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 infrastructure contractors by metro in Canada

Oil and gas infrastructure contractors in Calgary159
Oil and gas infrastructure contractors in Edmonton53
Oil and gas infrastructure contractors in Grande Prairie25

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 infrastructure 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 oil and gas infrastructure contractors are there based in Calgary, Canada?

RevenueBase identified 159 oil and gas infrastructure contractors headquartered in Calgary, 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?

Precision Drilling, headquartered in Calgary, tops this list with the largest team on record.

Which city has the most oil and gas infrastructure contractors?

Calgary leads with 159 headquartered companies, followed by Edmonton (53) and Grande Prairie (25).

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 3,200 verified decision-maker contacts tracked across these 159 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.