Company lists · Data refreshed September 2026

Top 12 Refrigeration contractors based in London, Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 30 companies tracked

RevenueBase identified 30 refrigeration contractors headquartered in London, Canada as of September 2026 and tracks 196 professional contacts across them, including 71 with verified work emails. Calgary is the largest hub.

This list covers refrigeration contractors headquartered in London, 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 17, 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 17, 2026 86% judged on-target in blind review

30Companies

196Contacts tracked

71Verified emails

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The 12 largest refrigeration contractors based in London, Canada

Ranked by team size

Top 12 of 30 refrigeration contractors based in London, Canada, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to refrigeration contractors: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Johnstone Supply - B&b	Partial evidence	London, ON, CanadaHQ checked Sep 17, 2026	51-200	47 contacts →
	Partial evidence “With more than half a century of experience B&B Trade Distribution Centre services the Heating, Ventilation, Air conditioning, Refrigeration, and Sheet Metal trades across Ontario…” Source: RevenueBase Database · checked Sep 17, 2026
2	Drennan Refrigeration INC	Strong evidence	London, ON, CanadaHQ checked Sep 17, 2026	51-200	47 contacts →
	Strong evidence “Drennan Refrigeration is an industrial refrigeration contractor specializing in the design, construction, and service of all types of refrigeration systems.” Source: RevenueBase Database · checked Sep 17, 2026
3	Brisson & Massie Mechanical	Indirect evidence	London, ON, CanadaHQ checked Sep 17, 2026	51-200	13 contacts →
	Indirect evidence “Brisson & Massie is a mechanical company specializing in plumbing, heating, and air conditioning, in the multi-unit residential and commercial sectors.” Source: RevenueBase Database · checked Sep 17, 2026
4	NCA LTD	Indirect evidence	London, ON, CanadaHQ checked Sep 17, 2026	11-50	8 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
5	ART Blake Refrigeration Limited	Partial evidence	London, ON, CanadaHQ checked Sep 17, 2026	11-50	6 contacts →
	Partial evidence “Art Blake Refrigeration Limited is an HVAC/R Service company based in London, Ontario, Canada.” Source: RevenueBase Database · checked Sep 17, 2026
6	AIR Design Services	Strong evidence	London, ON, CanadaHQ checked Sep 17, 2026	11-50	6 contacts →
	Strong evidence “Air Design Services is a full service residential and commercial refrigeration, heating, air conditioning and indoor air quality contractor.” Source: RevenueBase Database · checked Sep 17, 2026
7	Barrett Mechanical	Indirect evidence	London, ON, CanadaHQ checked Sep 17, 2026	11-50	6 contacts →
	Indirect evidence “Barrett Mechanical company” Source: RevenueBase Database · checked Sep 17, 2026
8	Builders Choice AIR Systems LTD	Partial evidence	London, ON, CanadaHQ checked Sep 17, 2026	1-10	5 contacts →
	Partial evidence “Builders Choice Air Systems has been providing heating, ventilation and air conditioning (HVAC) services, fireplaces and heating & cooling contractor services to London and area…” Source: RevenueBase Database · checked Sep 17, 2026
9	PTN Electrical Solutions Limited	Partial evidence	London, ON, CanadaHQ checked Sep 17, 2026	1-10	4 contacts →
	Partial evidence “PTN Electrical is a licensed and insured electrical contractor.” Source: RevenueBase Database · checked Sep 17, 2026
10	Pacific West Refrigeration	Partial evidence	London, ON, CanadaHQ checked Sep 17, 2026	1-10	4 contacts →
	Partial evidence “A leading expert in Marine Refrigeration for more than 25 years, choosing Pacific West Refrigeration to build your next Marine Refrigeration System is the right choice.” Source: RevenueBase Database · checked Sep 17, 2026
11	SCT Mechanical INC	Partial evidence	London, ON, CanadaHQ checked Sep 17, 2026	1-10	3 contacts →
	Partial evidence “SCT Mechanical is a full service mechanical contractor dedicated to delivering the highest quality workmanship and client satisfaction in the industry.” Source: RevenueBase Database · checked Sep 17, 2026
12	Artcool Systems	Partial evidence	London, ON, CanadaHQ checked Sep 17, 2026	1-10	1 contacts →
	Partial evidence “We Supply, Install & Service Commercial Refrigeration and HVAC Systems.” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: refrigeration contractors. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names refrigeration contractors.
Partial evidence: Its own public description names part of refrigeration contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name refrigeration contractors. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 12 of 30 refrigeration contractors based in London, Canada

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Refrigeration contractors based in London, Canada at a glance

As of Sep 17, 2026

36.2%Verified-email coverage

6.5Average contacts per company

1-10Median size (employees)

386.7%Largest-city concentration · Calgary

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured across the whole Canada list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 30 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 refrigeration contractors, 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 London, Canada whose own description of what they do matches “refrigeration contractors”. 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 refrigeration contractors), 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 refrigeration contractors, and records with no verified work email. Companies headquartered outside London 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, 71 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 17, 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.

Refrigeration contractors by metro in Canada

Refrigeration contractors in Calgary116
Refrigeration contractors in Toronto97
Refrigeration contractors in Edmonton65
Refrigeration contractors in Mississauga65
Refrigeration contractors in Winnipeg60
Refrigeration contractors in Ottawa49
Refrigeration contractors in Burnaby48
Refrigeration contractors in Brampton47
Refrigeration contractors in Montreal47
Refrigeration contractors in Quebec42
Refrigeration contractors in Vaughan39
Refrigeration contractors in Surrey37
Refrigeration contractors in London30
Refrigeration contractors in Vancouver30
Refrigeration contractors in Laval29
Refrigeration contractors in Markham28
Refrigeration contractors in Hamilton25

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 refrigeration contractors, 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 refrigeration contractors are there based in London, Canada?

RevenueBase identified 30 refrigeration contractors headquartered in London, 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?

Johnstone Supply - B&b, headquartered in London, tops this list with the largest team on record.

Which city has the most refrigeration contractors?

Calgary leads with 116 headquartered companies, followed by Toronto (97) and Edmonton (65).

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 71 verified decision-maker contacts tracked across these 30 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 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 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.