Company lists · Data refreshed September 2026

Top 14 Isolator manufacturers based in Canada

RevenueBase identified 27 isolator manufacturers headquartered in Canada as of September 2026 and tracks 363 professional contacts across them, including 152 with verified work emails. Calgary is the largest hub.

This list covers isolator manufacturers 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 30, 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 30, 2026 86% judged on-target in blind review
27Companies
363Contacts tracked
152Verified emails
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The 14 largest isolator manufacturers based in Canada

Ranked by team size
Top 14 of 27 isolator manufacturers based in Canada, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to isolator manufacturers: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceLondon, ON, CanadaHQ checked Sep 30, 202651-20077 contacts →

Partial evidence

“Founded in 1982, CANDUCT INDUSTRIES is a leading manufacturer Electrical Insulation, primarily used for cooling for oil cooled transformers.”

Source: RevenueBase Database · checked Sep 30, 2026
2Indirect evidenceTerrebonne, QC, CanadaHQ checked Sep 30, 202651-20073 contacts →

Indirect evidence

“Un retour sur investissement imbattable.”

Source: RevenueBase Database · checked Sep 30, 2026
3Partial evidenceToronto, ON, CanadaHQ checked Sep 30, 202611-5032 contacts →

Partial evidence

“Firwin Corp is a leading manufacturer of custom insulation products for diesel and gas engines & exhaust systems, and industrial applications.”

Source: RevenueBase Database · checked Sep 30, 2026
4Partial evidenceWinnipeg, MB, CanadaHQ checked Sep 30, 202651-20023 contacts →

Partial evidence

“For over 50 years, Polycast has been a leader in the manufacture, research and development of epoxy cast products for electrical power apparatus and other industrial applications.”

Source: RevenueBase Database · checked Sep 30, 2026
5Indirect evidenceLeamington, ON, CanadaHQ checked Sep 30, 202651-20021 contacts →

Indirect evidence

“UE Enclosures is a CSA and ISO 9001 certified company and has been manufacturing custom enclosures for nearly 25 years.”

Source: RevenueBase Database · checked Sep 30, 2026
6Indirect evidenceSarnia, ON, CanadaHQ checked Sep 30, 202611-5019 contacts →

Indirect evidence

“Since 2015, Vital has been committed to introducing technological innovations to petrochemical facilities, aiming to reduce downtime and costs, while enhancing Safety & increasing…”

Source: RevenueBase Database · checked Sep 30, 2026
7Indirect evidenceScarborough, ON, CanadaHQ checked Sep 30, 202651-20016 contacts →

Indirect evidence

“K-Line Insulators Ltd.”

Source: RevenueBase Database · checked Sep 30, 2026
8Indirect evidenceLaval, QC, CanadaHQ checked Sep 30, 202611-5012 contacts →

Indirect evidence

“Established in 1956, Synthane Taylor has grown to become an industry leader in the supply of electrical insulation materials and finished parts.”

Source: RevenueBase Database · checked Sep 30, 2026
9Indirect evidenceOttawa, ON, CanadaHQ checked Sep 30, 202611-509 contacts →

Indirect evidence

“DFMZ provides custom cleanroom solutions and lab equipment including biological safety cabinets, laminar airflow hoods, robotic/automation enclosures, extraction hoods, wet…”

Source: RevenueBase Database · checked Sep 30, 2026
10Indirect evidenceStoney Creek, ON, CanadaHQ checked Sep 30, 202611-508 contacts →

Indirect evidence

“Crossby Systems is a leader in providing complete insulation systems to the steam and gas turbine, OEM and nuclear sectors.”

Source: RevenueBase Database · checked Sep 30, 2026
11Partial evidenceMississauga, ON, CanadaHQ checked Sep 30, 202651-2005 contacts →

Partial evidence

“Manufacturer of low and high voltage fuses ( North American and European ), accesories, switches, power resistors, DC bar contactors,laminated busbar, heatsinks and value added…”

Source: RevenueBase Database · checked Sep 30, 2026
12Strong evidenceMontreal, QC, CanadaHQ checked Sep 30, 202651-2004 contacts →

Strong evidence

“What we do Isotech Design is a leading designer and manufacturer of turnkey barrier isolators, glove boxes, microenvironments and clean air environments solutions for the…”

Source: RevenueBase Database · checked Sep 30, 2026
13Partial evidenceToronto, ON, CanadaHQ checked Sep 30, 20261-102 contacts →

Partial evidence

“Torus Power Toroidal Isolation Transformer-based Power Conditioners are the world’s finest clean power source for audio, video, and control systems for both homes and commercial…”

Source: RevenueBase Database · checked Sep 30, 2026
14Partial evidenceLaval, QC, CanadaHQ checked Sep 30, 20261-101 contacts →

Partial evidence

“Produits electrolation offrent une vaste gamme des meilleurs produits d’isolation électrique, calfeutrage, câblage, etc.”

Source: RevenueBase Database · checked Sep 30, 2026

Showing 14 of 27 isolator manufacturers based in Canada

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Isolator manufacturers based in Canada at a glance

As of Sep 30, 2026
41.9%Verified-email coverage
13.4Average contacts per company
11-50Median size (employees)
11.1%Largest-city concentration · Calgary
Sep 30, 2026Page data refreshed

Companies by employee count

1-10
6
11-50
11
51-200
10

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 27 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 isolator manufacturers, 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 “isolator manufacturers”. 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 isolator manufacturers), 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 isolator manufacturers, 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, 152 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 30, 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 isolator manufacturers, 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 isolator manufacturers are there based in Canada?

RevenueBase identified 27 isolator manufacturers 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?

Canduct Industries Limited, headquartered in London, tops this list with the largest team on record.

Which city has the most isolator manufacturers?

Calgary leads with 3 headquartered companies, followed by Laval (2) and London (2).

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 152 verified decision-maker contacts tracked across these 27 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 30, 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.