Company lists · Data refreshed September 2026

Top 25 Offshore construction contractors based in Canada

Name: Offshore construction 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 76 companies tracked

RevenueBase identified 76 company matches for offshore construction contractors associated with Canada as of September 2026 and tracks 1,789 professional contacts across them, including 465 with verified work emails. Dartmouth is the largest hub.

This list covers company matches for offshore construction 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 September 17, 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 Sep 17, 2026 How this list was built

76Companies

1,789Contacts tracked

465Verified emails

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The 25 largest offshore construction contractors based in Canada

Ranked by team size

Top 25 of 76 company matches for offshore construction contractors based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Atlantic Towing	Exact match	Saint John, NB, CanadaHQ recorded Sep 17, 2026	501-1,000	194 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Fraser River Pile And Dredge GP INC	Exact match	New Westminster, BC, CanadaHQ recorded Sep 17, 2026	51-200	132 contacts →
	Exact match “Fraser River Pile & Dredge (GP) Inc.(FRPD) was incorporated in Alberta in 2008, and is a successor company to Fraser River Pile Driving Company (founded in 1911).” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Vancouver Pile Driving	Exact match	North Vancouver, BC, CanadaHQ recorded Sep 17, 2026	51-200	104 contacts →
	Exact match “VanPile is one of the largest marine general contractor in Canada.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Lamsar INC	Exact match	Corunna, ON, CanadaHQ recorded Sep 17, 2026	501-1,000	74 contacts →
	Exact match “Established in 1979 LamSar Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Reliance Offshore, A Subsidiary Of I. H. Mathers	Exact match	St John’s, NL, CanadaHQ recorded Sep 17, 2026	201-500	64 contacts →
	Exact match “Reliance Offshore is the offshore & marine personnel subsidiary of the I.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Albion Marine Solutions	Exact match	Delta, BC, CanadaHQ recorded Sep 17, 2026	51-200	59 contacts →
	Exact match “Albion Marine Solutions Ltd, Canada is dedicated to providing shipping industry with reliable, professional and cost effective consultancy, engineering, site supervision, retrofit…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Siem Offshore Canada	Exact match	Dartmouth, NS, CanadaHQ recorded Sep 17, 2026	51-200	55 contacts →
	Exact match “Siem Offshore manages a harsh-weather fleet of offshore support vessels servicing major offshore energy companies.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Carbonex Contractors LTD	Exact match	Whitecourt, AB, CanadaHQ recorded Sep 17, 2026	201-500	47 contacts →
	Exact match “At Carbonex, we strive to provide innovative and safe solutions for construction and maintenance that exceed client expectations.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Pillar Oilfield Projects LTD	Exact match	Calgary, AB, CanadaHQ recorded Sep 17, 2026	51-200	40 contacts →
	Exact match “Pillar Oilfield Projects Ltd is an oil & energy mechanical and general contractor based out of Alberta with a fabrication shop in Edmonton.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Arjae Design Solutions LTD	Exact match	Nisku, AB, CanadaHQ recorded Sep 17, 2026	51-200	35 contacts →
	Exact match “We are a leader in unique and creative engineering and fabrication solutions to the Oil & Gas industry by top quality, experienced professionals.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Cooec Canada	Exact match	Clagary, AB, CanadaHQ recorded Sep 17, 2026	51-200	29 contacts →
	Exact match “COOEC is now one of the largest EPCI contractors for the offshore oil and gas industry in North America.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Mackinnon & Olding	Exact match	Dartmouth, NS, CanadaHQ recorded Sep 17, 2026	201-500	28 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Canpac Marine Services INC	Exact match	North Vancouver, BC, CanadaHQ recorded Sep 17, 2026	51-200	26 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Zutphen Contractors	Exact match	Port Hood, NS, CanadaHQ recorded Sep 17, 2026	51-200	23 contacts →
	Exact match “Zutphen Contractors is a company based out of 10442 Nova Scotia Trunk 19, Port Hood, Nova Scotia, Canada.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Dominion Diving LTD	Exact match	Dartmouth, NS, CanadaHQ recorded Sep 17, 2026	11-50	23 contacts →
	Exact match “Founded in 1969, Dominion Diving Limited has advanced to become the largest professional diving, ROV and subsea services company in Canada.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Petro-Line Construction Group	Exact match	Nisku, AB, CanadaHQ recorded Sep 17, 2026	51-200	20 contacts →
	Exact match “Petro-Line, incorporated in 1977, is involved in the construction, maintenance, and upgrading of Pipelines and Facilities in the Oil and Gas Industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Géodex	Exact match	Boisbriand, QC, CanadaHQ recorded Sep 17, 2026	51-200	18 contacts →
	Exact match “Fondée en 1973 par Mario Giacomo et membre de la grande famille CBF depuis le 1er septembre 2023, Géodex est votre partenaire de confiance pour tous vos besoins en fondations…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Seaforth Geosurveys INC	Exact match	Dartmouth, NS, CanadaHQ recorded Sep 17, 2026	11-50	17 contacts →
	Exact match “For more than 30 years, Seaforth has embraced innovation and adapted through change to deliver reliable offshore survey, geotechnical, and site characterisation solutions in the…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Indyco INC	Exact match	Brossard, QC, CanadaHQ recorded Sep 17, 2026	51-200	15 contacts →
	Exact match “INDYCO est une entreprise spécialisée en génie civil maritime et environnemental, incluant la réalisation de travaux sous-marins spécialisés.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Frontier	Exact match	Paradise, NL, CanadaHQ recorded Sep 17, 2026	11-50	11 contacts →
	Exact match “Founded in 2013, we are proud of what we have become, a team of skilled problem-solving individuals experienced in engineering, procurement, construction, installation, and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Dean Construction Company	Exact match	Lasalle, ON, CanadaHQ recorded Sep 17, 2026	11-50	8 contacts →
	Exact match “Large scale marine contractor specializing in heavy marine construction with a focus on pipeline deployments, pile driving, shoreline protection, full construction of water…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	ASI Group	Exact match	Hamilton, ON, CanadaHQ recorded Sep 17, 2026	51-200	7 contacts →
	Exact match “ASI Group Ltd (ASI) is a 120 person firm that was founded in 1987 by a core group of individuals with backgrounds in marine biology, commercial diving, and marine construction.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	On Site Projects LTD	Exact match	Sherwood Park, AB, CanadaHQ recorded Sep 17, 2026	51-200	6 contacts →
	Exact match “When you need results, we deliver the best in oilfield construction and maintenance services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Dominion Divers 2003 LTD	Exact match	Navin, MB, CanadaHQ recorded Sep 17, 2026	11-50	5 contacts →
	Exact match “We are ….” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	TCR Coastal Power LTD	Exact match	Delta, BC, CanadaHQ recorded Sep 17, 2026	11-50	4 contacts →
	Exact match “TCR Coastal Power Ltd is a specialized electrical contractor focusing on MARITIME, OFF-GRID, RENEWABLE and GENERAL ELECTRICAL services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “offshore construction contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 76 offshore construction contractors based in Canada

See the full list, filter by size, metro and specialty, and access 465 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Offshore construction contractors based in Canada at a glance

As of Sep 17, 2026

26.0%Verified-email coverage

23.5Average contacts per company

11-50Median size (employees)

9.2%Largest-city concentration · Dartmouth

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 76 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 “offshore construction 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 465 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 September 17, 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.

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

How many offshore construction contractors are there based in Canada?

RevenueBase identified 76 company matches for offshore construction contractors associated with Canada as of September 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?

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

Which city has the most offshore construction contractors?

Dartmouth leads with 7 company records, followed by North Vancouver (5) and Burnaby (3).

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 465 professional contacts with verified work emails tracked across these 76 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 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 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.