Company lists · Data refreshed September 2026

Top 25 Offshore construction companies based in Canada

Name: Offshore 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 99 companies tracked

RevenueBase identified 99 offshore construction companies headquartered in Canada as of September 2026 and tracks 3,167 professional contacts across them, including 1,097 with verified work emails. Edmonton is the largest hub.

This list covers offshore 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

99Companies

3,167Contacts tracked

1,097Verified emails

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The 25 largest offshore construction companies based in Canada

Ranked by team size

Top 25 of 99 offshore 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 offshore 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	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
2	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
3	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
4	Atlantic Towing	Partial evidence	Saint John, NB, CanadaHQ checked Sep 17, 2026	501-1,000	194 contacts →
	Partial evidence “Atlantic Towing is a leading provider of Offshore Supply, Port and Coastal marine services, operating in the North Atlantic, South Atlantic, Arctic and Pacific Coastal regions, as…” Source: RevenueBase Database · checked Sep 17, 2026
5	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
6	Epfc Corp	Partial evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	201-500	157 contacts →
	Partial 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
7	AKA Energy Systems	Indirect evidence	Montague, PE, CanadaHQ checked Sep 17, 2026	51-200	124 contacts →
	Indirect evidence “AKA Energy Systems (Aspin Kemp & Associates Inc.), established in 1996, is an energy systems provider delivering innovative solutions worldwide.” Source: RevenueBase Database · checked Sep 17, 2026
8	League Projects LTD	Partial evidence	Brooks, AB, CanadaHQ checked Sep 17, 2026	501-1,000	110 contacts →
	Partial evidence “League Projects Ltd provides complete pipeline and facility construction services, integrity repairs, modular construction and fabrication through the use of an experienced…” Source: RevenueBase Database · checked Sep 17, 2026
9	Vancouver Pile Driving	Indirect evidence	North Vancouver, BC, CanadaHQ checked Sep 17, 2026	51-200	104 contacts →
	Indirect evidence “VanPile is one of the largest marine general contractor in Canada.” Source: RevenueBase Database · checked Sep 17, 2026
10	Lamsar INC	Indirect evidence	Corunna, ON, CanadaHQ checked Sep 17, 2026	501-1,000	74 contacts →
	Indirect evidence “Established in 1979 LamSar Inc.” Source: RevenueBase Database · checked Sep 17, 2026
11	DF Barnes	Partial evidence	St John’s, NL, CanadaHQ checked Sep 17, 2026	51-200	65 contacts →
	Partial evidence “DF Barnes is a Newfoundland and Labrador company engaged in fabrication, maintenance and industrial construction for the mining, oil and gas, renewable and marine sectors.” Source: RevenueBase Database · checked Sep 17, 2026
12	Cherubini Bridges And Structures	Indirect evidence	Dartmouth, NS, CanadaHQ checked Sep 17, 2026	51-200	60 contacts →
	Indirect evidence “For nearly 60 years, Cherubini Bridges and Structures has supported clients delivering complex bridge, structural, and custom steel projects across the globe.” Source: RevenueBase Database · checked Sep 17, 2026
13	Siem Offshore Canada	Partial evidence	Dartmouth, NS, CanadaHQ checked Sep 17, 2026	51-200	55 contacts →
	Partial evidence “Siem Offshore manages a harsh-weather fleet of offshore support vessels servicing major offshore energy companies.” Source: RevenueBase Database · checked Sep 17, 2026
14	Carbonex Contractors LTD	Partial evidence	Whitecourt, AB, CanadaHQ checked Sep 17, 2026	201-500	47 contacts →
	Partial evidence “At Carbonex, we strive to provide innovative and safe solutions for construction and maintenance that exceed client expectations.” Source: RevenueBase Database · checked Sep 17, 2026
15	Cimota INC	Indirect evidence	St-augustin-de-desmaures, QC, CanadaHQ checked Sep 17, 2026	51-200	46 contacts →
	Indirect evidence “Licence RBQ : 2948-1306-28 Entrepreneur général spécialisé – Génie civil et commercial Depuis plus de 30 ans, notre expertise, reconnue dans le milieu, couvre un vaste éventail…” Source: RevenueBase Database · checked Sep 17, 2026
16	Pillar Oilfield Projects LTD	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	51-200	40 contacts →
	Indirect evidence “Pillar Oilfield Projects Ltd is an oil & energy mechanical and general contractor based out of Alberta with a fabrication shop in Edmonton.” Source: RevenueBase Database · checked Sep 17, 2026
17	Reed Energy Group INC	Indirect evidence	Grande Prairie, AB, CanadaHQ checked Sep 17, 2026	201-500	38 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
18	Arjae Design Solutions LTD	Indirect evidence	Nisku, AB, CanadaHQ checked Sep 17, 2026	51-200	35 contacts →
	Indirect evidence “We are a leader in unique and creative engineering and fabrication solutions to the Oil & Gas industry by top quality, experienced professionals.” Source: RevenueBase Database · checked Sep 17, 2026
19	MQM Quality Manufacturing LTD	Indirect evidence	Tracadie-sheila, CanadaHQ checked Sep 17, 2026	201-500	35 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
20	Cooec Canada	Partial evidence	Clagary, AB, CanadaHQ checked Sep 17, 2026	51-200	29 contacts →
	Partial evidence “COOEC is now one of the largest EPCI contractors for the offshore oil and gas industry in North America.” Source: RevenueBase Database · checked Sep 17, 2026
21	Mackinnon & Olding	Partial evidence	Dartmouth, NS, CanadaHQ checked Sep 17, 2026	201-500	28 contacts →
	Partial evidence “MacKinnon & Olding (M&O) is a Nova Scotia-based marine construction and industrial services company with 40 years of experience and one of Eastern Canada’s leading providers of…” Source: RevenueBase Database · checked Sep 17, 2026
22	Canpac Marine Services INC	Partial evidence	North Vancouver, BC, CanadaHQ checked Sep 17, 2026	51-200	26 contacts →
	Partial evidence “Canpac Marine Services Inc, is based in the Port of Vancouver, Canada and has been providing marine services to inland, coastal, and offshore sectors since 1965.” Source: RevenueBase Database · checked Sep 17, 2026
23	Midwest Structural LTD	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 17, 2026	11-50	24 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
24	Petro-Line Construction Group	Partial evidence	Nisku, AB, CanadaHQ checked Sep 17, 2026	51-200	20 contacts →
	Partial evidence “Petro-Line, incorporated in 1977, is involved in the construction, maintenance, and upgrading of Pipelines and Facilities in the Oil and Gas Industry.” Source: RevenueBase Database · checked Sep 17, 2026
25	ALL Class Fabrication And Coatings	Indirect evidence	Clairmont, AB, CanadaHQ checked Sep 17, 2026	11-50	16 contacts →
	Indirect evidence “All Class Fabrication has been proudly serving the Peace Country region since 2007, delivering high-quality metalwork and industrial 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: offshore 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 offshore construction companies.
Partial evidence: Its own public description names part of offshore construction companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name offshore 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 99 offshore construction companies based in Canada

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Offshore construction companies based in Canada at a glance

As of Sep 17, 2026

34.6%Verified-email coverage

32.0Average contacts per company

51-200Median size (employees)

10.1%Largest-city concentration · Edmonton

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 99 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 offshore 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 “offshore 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 offshore 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 offshore 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, 1,097 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.

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 offshore 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 offshore construction companies are there based in Canada?

RevenueBase identified 99 offshore 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?

Thermo Design Engineering LTD, headquartered in Edmonton, tops this list with the largest team on record.

Which city has the most offshore construction companies?

Edmonton leads with 10 headquartered companies, followed by Calgary (5) and Dartmouth (5).

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 1,097 verified decision-maker contacts tracked across these 99 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.