Company lists · Data refreshed November 2026

Top 24 Industrial contractors based in Ottawa, Canada

Name: Industrial contractors based in Ottawa, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 102 companies tracked

RevenueBase identified 102 company matches for industrial contractors associated with Ottawa, Canada as of November 2026 and tracks 2,152 professional contacts across them, including 932 with verified work emails. Across Canada, Calgary is the largest hub for this category (277 companies); Ottawa has 102.

This list covers company matches for industrial contractors associated with Ottawa, 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 November 6, 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 Nov 6, 2026 How this list was built

102Companies

2,152Contacts tracked

932Verified emails

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The 24 largest industrial contractors based in Ottawa, Canada

Ranked by team size

Top 24 of 102 company matches for industrial contractors based in Ottawa, Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	Tomlinson Group Of Companies	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	501-1,000	481 contacts →
	Exact match “Starting with a single-axle dump truck in 1952, R.W.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Inflector Environmental Services	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	201-500	180 contacts →
	Exact match “Inflector Environmental Services has established itself as one of Canada’s leading environmental service providers in hazardous material remediation, demolition, fireproofing…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Louis W Bray Construction Limited	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	73 contacts →
	Exact match “Louis W.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	PVC Industrial Products	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	n/a	71 contacts →
	Exact match “PVC Industrial Products is an Industrial Plumbing Wholesaler that has been in business since 1994 in the Ottawa-Gatineau region and services clients nation wide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Alliance Engineering & Construction LTD	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	47 contacts →
	Exact match “Alliance offers Mechanical and Electrical Design and Construction services, providing integrated solutions across the industrial, commercial, institutional and high-rise…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Dilfo Mechanical	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	45 contacts →
	Exact match “Dilfo Mechanical Limited is one of Eastern Ontario’s largest mechanical contracting firms, specializing in the full range of services, from large-scale design-build projects to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	TPH Plumbing & Heating	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	11-50	44 contacts →
	Exact match “Since 1986, we have been providing commercial, industrial and institutional piping, plumbing and heating services to Ottawa and Eastern Ontario.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Thomas Fuller Construction Co. Limited	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	42 contacts →
	Exact match “With its heritage analogous to the history of Canada itself, The Fuller Group is the largest and oldest established locally-owned construction and development organization in…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Matériaux Morin Supply	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	41 contacts →
	Exact match “Since 1986, Morin Supply has been a major distributor of specialty construction materials for homeowners, contractors, engineers, and architects across the National Capital Region.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Mcdonald Brothers Construction INC	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	33 contacts →
	Exact match “McDonald Brothers Construction - established in 1988 - is a General Contractor based in the Ottawa area which services primarily the Industrial, Commercial, and Institutional…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Doran Contractors Limited	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	11-50	31 contacts →
	Exact match “When time, money, and quality count, people choose Doran Contractors Limited for peace of mind.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Frontier Petroleum	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	30 contacts →
	Exact match “Operating across Ontario, Canada, Frontier Petroleum is an experienced and TSSA-licensed company specializing in petroleum construction, civil construction, electrical, welding…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Waterdon Construction LTD	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	27 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Aries Contracting Ottawa INC	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	11-50	26 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Simluc Contractors LTD	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	23 contacts →
	Exact match “Pride, Integrity, & Quality Workmanship.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Premium Construction	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	11-50	21 contacts →
	Exact match “Since 2013, Premium Construction has offered services across all sectors (Industrial, Commercial, and institutional) providing General Contracting, Construction Management and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Teraflex	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	19 contacts →
	Exact match “Established in 1979, Teraflex provides electrical, communication and civil construction services for clients that include leading land and property developers; general contractors…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	AWD Contractors	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	11-50	16 contacts →
	Exact match “At AWD Contractors we continue to be an integral partner in the construction industry by providing our clients with advanced products, sustainable solutions, and outstanding…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Baxtec Mechanical Services	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	16 contacts →
	Exact match “Baxtec Mechanical Services is a dynamic and growing commercial mechanical contractor in the Ottawa area.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Brawn Construction LTD	Exact match	Ottawa, CanadaHQ recorded Nov 6, 2026	11-50	16 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Transvac Group Of Companies	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	15 contacts →
	Exact match “Environmental and Plumbing Services Plumbing services” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Dalcon Constructors LTD	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	1-10	14 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	The Lake Partnership INC	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	11-50	13 contacts →
	Exact match “Established in 1994, The Lake Partnership provides an integrated project management & general contracting service that delivers custom, high quality workmanship in an organized…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Mechanical Contractors Association Of Canada	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	1-10	13 contacts →
	Exact match “The Mechanical Contractors Association of Canada is the unified voice of the mechanical contracting industry.” Recorded in the RevenueBase company graph · Nov 6, 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 “industrial 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 24 of 102 industrial contractors based in Ottawa, Canada

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Industrial contractors based in Ottawa, Canada at a glance

As of Nov 6, 2026

43.3%Verified-email coverage

21.1Average contacts per company

11-50Median size (employees)

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

Email recency for this list is measured across the whole Canada list rather than for Ottawa, so it is reported there. Company counts and contact totals on this page are exact for Ottawa, over 102 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 Ottawa, Canada whose business descriptions match “industrial 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 932 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 November 6, 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.

Industrial contractors by metro in Canada

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

How many industrial contractors are there based in Ottawa, Canada?

RevenueBase identified 102 company matches for industrial contractors associated with Ottawa, Canada as of November 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?

Tomlinson Group Of Companies tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in Canada has the most industrial contractors?

Calgary leads Canada with 277 company records, followed by Edmonton (265) and Toronto (204). Ottawa has 102.

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 932 professional contacts with verified work emails tracked across these 102 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 November 6, 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.