Company lists · Data refreshed October 2026

Top 25 Chemical plant construction contractors based in Canada

Name: Chemical plant construction contractors based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 9, 2026 161 companies tracked

RevenueBase identified 161 company matches for chemical plant construction contractors associated with Canada as of October 2026 and tracks 6,370 professional contacts across them, including 2,496 with verified work emails. Calgary is the largest hub.

This list covers company matches for chemical plant 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 October 9, 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 9, 2026 How this list was built

161Companies

6,370Contacts tracked

2,496Verified emails

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The 25 largest chemical plant construction contractors based in Canada

Ranked by team size

Top 25 of 161 company matches for chemical plant construction contractors based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 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	Stuart Olson INC	Exact match	Calgary, AB, CanadaHQ recorded Oct 9, 2026	1,001-5,000	882 contacts →
	Exact match “At Stuart Olson, we're not just dedicated to the Canadian construction and industrial services market – we're passionate about turning projects into success stories.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2	Allnorth Consultants Limited	Exact match	Vancouver, BC, CanadaHQ recorded Oct 9, 2026	501-1,000	638 contacts →
	Exact match “Allnorth is a multi-disciplinary engineering, project delivery, and construction services company.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3	Laporte	Exact match	Montréal, QC, CanadaHQ recorded Oct 9, 2026	201-500	498 contacts →
	Exact match “LAPORTE is a consulting engineering firm specializing in pharmaceutical, agrifood, industrial biotech and industrial plant processes, which has been in business for 25 years.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4	Thermo Design Engineering LTD	Exact match	Edmonton, AB, CanadaHQ recorded Oct 9, 2026	501-1,000	282 contacts →
	Exact match “Thermo Design (TDE) is an innovative energy solutions company and a recognized leader in the design and engineering, fabrication, manufacturing, construction management…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5	DCM Group INC	Exact match	Sherwood Park, AB, CanadaHQ recorded Oct 9, 2026	501-1,000	272 contacts →
	Exact match “For over 70 years, DCM Group has been a vital supporter and construction partner of some of Canada’s most defining industries – oil & gas, petrochemicals, mining, power…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6	GAS Liquids Engineering	Exact match	Calgary, AB, CanadaHQ recorded Oct 9, 2026	201-500	213 contacts →
	Exact match “Gas Liquids Engineering (GLE) is a Calgary, Alberta based engineering services provider.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7	Lorneville	Exact match	Saint John, NB, CanadaHQ recorded Oct 9, 2026	501-1,000	194 contacts →
	Exact match “With over 45 years of experience working on major projects for some of North America’s most prominent companies in large industrial sectors, Lorneville is an established leader in…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8	Sunny Corner Enterprises INC	Exact match	Miramichi, NB, CanadaHQ recorded Oct 9, 2026	201-500	190 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9	The Epcm Group Global	Exact match	Oakville, ON, CanadaHQ recorded Oct 9, 2026	201-500	166 contacts →
	Exact match “At The EPCM Group, we solve our customers' most complex manufacturing and operational challenges through inventive thinking, deep technical expertise, and end-to-end global…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10	Teng INC	Exact match	Mississauga, ON, CanadaHQ recorded Oct 9, 2026	51-200	128 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11	PCL Energy	Exact match	Edmonton, AB, CanadaHQ recorded Oct 9, 2026	501-1,000	116 contacts →
	Exact match “PCL Energy is a diversified general industrial construction company dedicated to excellence in construction and servicing the oil and gas, petrochemical, mining, power…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
12	Keywest Projects LTD	Exact match	Calgary, AB, CanadaHQ recorded Oct 9, 2026	201-500	100 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13	Millenia Engineering	Exact match	Calgary, AB, CanadaHQ recorded Oct 9, 2026	51-200	90 contacts →
	Exact match “Providing Excellence and Innovative Solutions.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14	MAC Engineering INC	Exact match	Calgary, AB, CanadaHQ recorded Oct 9, 2026	51-200	82 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15	Lamsar INC	Exact match	Corunna, ON, CanadaHQ recorded Oct 9, 2026	501-1,000	79 contacts →
	Exact match “Established in 1979 LamSar Inc.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16	Laframboise Group LGL	Exact match	Long Sault, ON, CanadaHQ recorded Oct 9, 2026	501-1,000	78 contacts →
	Exact match “Laframboise concentrates it's efforts mainly in the Industrial and Institutional sectors of the construction industry.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17	Canusa EPC	Exact match	Calgary, AB, CanadaHQ recorded Oct 9, 2026	51-200	70 contacts →
	Exact match “CANUSA EPC specializes in engineering, procurement, construction management, and consulting services for industrial and energy facilities.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18	Process Group INC	Exact match	Cambridge, ON, CanadaHQ recorded Oct 9, 2026	201-500	65 contacts →
	Exact match “Process Group Welcome to Industry's single source end-to-end supplier of engineering, procurement, construction and maintenance services to manufacturing plants, process equipment…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19	SCG Process	Exact match	Langley, BC, CanadaHQ recorded Oct 9, 2026	51-200	59 contacts →
	Exact match “At SCG Process we harness the power of our collective of specialists; people committed to helping our clients become the stewards of their gas and fluid process performance across…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20	Seneca	Exact match	Anjou, QC, CanadaHQ recorded Oct 9, 2026	201-500	57 contacts →
	Exact match “Seneca is a private engineering firm in Montreal.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21	Aecometric Corporation	Exact match	Richmond Hill, ON, CanadaHQ recorded Oct 9, 2026	11-50	57 contacts →
	Exact match “Founded in 1972, Aecometric Corporation is a leader in supplying custom designed large-scale industrial combustion equipment and systems to the global market.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22	Nason Contracting Group LTD	Exact match	St. Albert, AB, CanadaHQ recorded Oct 9, 2026	51-200	56 contacts →
	Exact match “With almost 50 years of experience, Nason is a successful western Canadian-based multi-discipline construction company specializing in the construction and servicing of…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23	Mcsween Custom Fabricating	Exact match	Sturgeon County, AB, CanadaHQ recorded Oct 9, 2026	51-200	56 contacts →
	Exact match “McSween Custom Fabricating Ltd.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24	Filtrum Construction	Exact match	Québec, QC, CanadaHQ recorded Oct 9, 2026	51-200	53 contacts →
	Exact match “As water and wastewater specialists, Filtrum Construction is a trusted partner to engineer and construct leading-edge, cost-effective solutions for industrial and municipal…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25	Wolverine Contracting And Engineering	Exact match	Sarnia, ON, CanadaHQ recorded Oct 9, 2026	51-200	50 contacts →
	Exact match “Fuelling Possible with Innovation, Culture, and Relationships.” Recorded in the RevenueBase company graph · Oct 9, 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 “chemical plant 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 161 chemical plant construction contractors based in Canada

See the full list, filter by size, metro and specialty, and access 2,496 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Chemical plant construction contractors based in Canada at a glance

As of Oct 9, 2026

39.2%Verified-email coverage

39.6Average contacts per company

11-50Median size (employees)

18.6%Largest-city concentration · Calgary

Oct 9, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 161 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 “chemical plant 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 2,496 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 9, 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.

Chemical plant construction contractors by metro

Chemical plant construction contractors in Calgary30

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

How many chemical plant construction contractors are there based in Canada?

RevenueBase identified 161 company matches for chemical plant construction 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?

Stuart Olson INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most chemical plant construction contractors?

Calgary leads with 30 company records, followed by Edmonton (13) and Montreal (9).

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 2,496 professional contacts with verified work emails tracked across these 161 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 9, 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.