Company lists · Data refreshed October 2026

Top 25 Offshore maintenance contractors based in Canada

RevenueBase identified 62 company matches for offshore maintenance contractors associated with Canada as of October 2026 and tracks 1,261 professional contacts across them, including 341 with verified work emails. Dartmouth is the largest hub.

This list covers company matches for offshore maintenance 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 19, 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 19, 2026 How this list was built
62Companies
1,261Contacts tracked
341Verified emails
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The 25 largest offshore maintenance contractors based in Canada

Ranked by team size
Top 25 of 62 company matches for offshore maintenance contractors based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 19, 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 matchSaint John, NB, CanadaHQ recorded Oct 19, 2026501-1,000178 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 · Oct 19, 2026 · View company records in RevenueBase
2Exact matchSherwood Park, AB, CanadaHQ recorded Oct 19, 2026201-500147 contacts →

Exact match

“Blackstone believes that great people make great businesses.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
3Exact matchCambridge, ON, CanadaHQ recorded Oct 19, 2026201-500130 contacts →

Exact match

“LiftWerx is a specialized wind energy contractor, solely focused on large corrective repairs.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
4Exact matchSt John’s, NL, CanadaHQ recorded Oct 19, 2026201-50065 contacts →

Exact match

“Reliance Offshore is the offshore & marine personnel subsidiary of the I.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
5Exact matchDartmouth, NS, CanadaHQ recorded Oct 19, 202651-20049 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 · Oct 19, 2026 · View company records in RevenueBase
6Exact matchCalgary, AB, CanadaHQ recorded Oct 19, 202651-20047 contacts →

Exact match

“Mader are heavy equipment maintenance experts delivering quality repairs, preventative maintenance and expert diagnostics.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
7Exact matchMontreal, QC, CanadaHQ recorded Oct 19, 202651-20037 contacts →

Exact match

“NAVAMAR's experienced staff is capable of carrying out every type of ship repair required.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
8Exact matchDartmouth, NS, CanadaHQ recorded Oct 19, 2026201-50031 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 · Oct 19, 2026 · View company records in RevenueBase
9Exact matchNorth Vancouver, BC, CanadaHQ recorded Oct 19, 202651-20029 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 · Oct 19, 2026 · View company records in RevenueBase
10Exact matchCalgary, AB, CanadaHQ recorded Oct 19, 202651-20023 contacts →

Exact match

“Since 2001, LOK Energy Services specializes in field maintenance services for critical rotating machinery including steam and gas turbines, generators, and peripheral systems.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
11Exact matchKehewin, AB, CanadaHQ recorded Oct 19, 202611-5015 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
12Exact matchMatane, QC, CanadaHQ recorded Oct 19, 202651-20014 contacts →

Exact match

“Meriden specializes in conception, fabrication, repair and inspection of products and development in specific Maritimes and industrial Domain.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
13Exact matchRichmond Hill, ON, CanadaHQ recorded Oct 19, 20261-1013 contacts →

Exact match

“From power generation to pulp and paper, agricultural to marine, water processing to oil and gas, Belzona Great Lakes, a Belzona exclusive authorized Distributor for the province…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
14Exact matchLasalle, ON, CanadaHQ recorded Oct 19, 202611-509 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 · Oct 19, 2026 · View company records in RevenueBase
15Exact matchLac-mégantic, QC, CanadaHQ recorded Oct 19, 202611-507 contacts →

Exact match

“Service éolien Enerteck est une entreprise spécialisée dans la maintenance éolienne, active depuis 2017.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
16Exact matchCap-aux-meules, QC, CanadaHQ recorded Oct 19, 202611-507 contacts →

Exact match

“Fièrement établie aux Îles-de-la-Madeleine, OSM Atlantique offre des services de réparation, de maintenance, d’usinage et d’inspection pour les moteurs diesel de grande envergure…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
17Exact matchLiverpool, NS, CanadaHQ recorded Oct 19, 202611-507 contacts →

Exact match

“Mersey Marine Limited (formerly STENPRO) is located in Liverpool, Nova Scotia.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
18Exact matchWestbank, BC, CanadaHQ recorded Oct 19, 202611-507 contacts →

Exact match

“Kikinaw Energy Services Ltd.(Kikinaw) is a 100% Indigenous-owned (Saulteau First Nations) maintenance and construction contractor providing Electrical, Wind Energy construction…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
19Exact matchDrummondville, QC, CanadaHQ recorded Oct 19, 202651-2005 contacts →

Exact match

“Entrepreneur Pétrolier”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
20Exact matchNavin, MB, CanadaHQ recorded Oct 19, 202611-505 contacts →

Exact match

“We are ….”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
21Exact matchQuébec, QC, CanadaHQ recorded Oct 19, 202611-504 contacts →

Exact match

“SABNAR GROUP LTD has evolved into a well-established and highly reputable company, committed to delivering comprehensive maintenance services for projects within the Energy Sector.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
22Exact matchFraserville, ON, CanadaHQ recorded Oct 19, 202611-503 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
23Exact matchMaria, QC, CanadaHQ recorded Oct 19, 20261-103 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
24Exact matchDawson Creek, BC, CanadaHQ recorded Oct 19, 202611-502 contacts →

Exact match

“Nor-Kam is a locally owned and operated energy equipment and service provider.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
25Exact matchDrayton Valley, AB, CanadaHQ recorded Oct 19, 202611-502 contacts →

Exact match

“DV Oilfield Services is committed to effectively serving customers' needs while maintaining the highest standard of service, quality and satisfaction.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase

Showing 25 of 62 offshore maintenance contractors based in Canada

See the full list, filter by size, metro and specialty, and access 341 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Offshore maintenance contractors based in Canada at a glance

As of Oct 19, 2026
27.0%Verified-email coverage
20.3Average contacts per company
11-50Median size (employees)
8.1%Largest-city concentration · Dartmouth
Oct 19, 2026Page data refreshed

Companies by employee count

1-10
17
11-50
28
51-200
12
201-500
4
501-1,000
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 62 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 maintenance 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 341 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 19, 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 maintenance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many offshore maintenance contractors are there based in Canada?

RevenueBase identified 62 company matches for offshore maintenance 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?

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 maintenance contractors?

Dartmouth leads with 5 company records, followed by Calgary (4) and North Vancouver (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 341 professional contacts with verified work emails tracked across these 62 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 19, 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.