Company lists · Data refreshed September 2026

Top 14 Commercial construction consulting firms based in London, Canada

Name: Commercial construction consulting firms based in London, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 36 companies tracked

RevenueBase identified 36 commercial construction consulting firms headquartered in London, Canada as of September 2026 and tracks 272 professional contacts across them, including 134 with verified work emails. Across Canada, Toronto is the largest hub for this category (448 companies); London has 36.

This list covers commercial construction consulting firms 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 23, 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 23, 2026 86% judged on-target in blind review

36Companies

272Contacts tracked

134Verified emails

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The 14 largest commercial construction consulting firms based in London, Canada

Ranked by team size

Top 14 of 36 commercial construction consulting firms based in London, Canada, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to commercial construction consulting firms: 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	Michael Clark Construction	Partial evidence	London, ON, CanadaHQ checked Sep 23, 2026	11-50	52 contacts →
	Partial evidence “At michael + clark construction, we embrace our role as project stewards to provide professional design-build and construction management solutions that range in scale and…” Source: RevenueBase Database · checked Sep 23, 2026
2	Vanderwesten & Rutherford Associates INC	Partial evidence	London, ON, CanadaHQ checked Sep 23, 2026	11-50	30 contacts →
	Partial evidence “Vanderwesten & Rutherford is a consulting mechanical and electrical engineering firm with 49+ years of experience.” Source: RevenueBase Database · checked Sep 23, 2026
3	D. Grant Construction Limited	Indirect evidence	London, ON, CanadaHQ checked Sep 23, 2026	11-50	20 contacts →
	Indirect evidence “D.” Source: RevenueBase Database · checked Sep 23, 2026
4	Chorley Bisset LTD	Indirect evidence	London, ON, CanadaHQ checked Sep 23, 2026	11-50	19 contacts →
	Indirect evidence “Chorley + Bisset Ltd.” Source: RevenueBase Database · checked Sep 23, 2026
5	Bronnenco Construction LTD	Partial evidence	London, ON, CanadaHQ checked Sep 23, 2026	11-50	16 contacts →
	Partial evidence “CONCEPTUALIZING YOUR DREAMS AND BUILDING YOUR REALITY A leading construction management and general contracting firm located in London, Ontario that completes small, medium and…” Source: RevenueBase Database · checked Sep 23, 2026
6	Nicholson Sheffield Architects INC	Indirect evidence	London, ON, CanadaHQ checked Sep 23, 2026	11-50	13 contacts →
	Indirect evidence “Through 40 years of providing architectural services to clients across Southwestern Ontario, Nicholson Sheffield Architects Inc.” Source: RevenueBase Database · checked Sep 23, 2026
7	DUO Building LTD	Indirect evidence	London, ON, CanadaHQ checked Sep 23, 2026	11-50	10 contacts →
	Indirect evidence “We're London's leading design + build renovation company.” Source: RevenueBase Database · checked Sep 23, 2026
8	Dancor Construction LTD	Partial evidence	London, ON, CanadaHQ checked Sep 23, 2026	11-50	9 contacts →
	Partial evidence “We are a construction company to our core and offer a complete and comprehensive suite of building services.” Source: RevenueBase Database · checked Sep 23, 2026
9	Tonda Construction Limited	Indirect evidence	London, ON, CanadaHQ checked Sep 23, 2026	11-50	9 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 23, 2026
10	Verto360	Indirect evidence	London, ON, CanadaHQ checked Sep 23, 2026	1-10	6 contacts →
	Indirect evidence “At Verto360, we help you create flexible work spaces that people love.” Source: RevenueBase Database · checked Sep 23, 2026
11	LDS Consultants INC	Indirect evidence	London, ON, CanadaHQ checked Sep 23, 2026	11-50	3 contacts →
	Indirect evidence “Our involvement begins early in the land development process with identifying sites for potential land acquisition, following with due diligence efforts for land procurement…” Source: RevenueBase Database · checked Sep 23, 2026
12	Emcad Consulting Engineers	Partial evidence	London, ON, CanadaHQ checked Sep 23, 2026	11-50	3 contacts →
	Partial evidence “EMCAD Consulting Engineers is a full service mechanical, electrical and plumbing consulting engineering firm.” Source: RevenueBase Database · checked Sep 23, 2026
13	Value Consultants Associates	Indirect evidence	London, ON, CanadaHQ checked Sep 23, 2026	11-50	3 contacts →
	Indirect evidence “Value Consultants Associates is an emerging international company operating predominantly in North America and the Middle East.” Source: RevenueBase Database · checked Sep 23, 2026
14	Marshall & Murray Incorporated	Partial evidence	London, ON, CanadaHQ checked Sep 23, 2026	11-50	1 contacts →
	Partial evidence “With offices in Toronto, London and Ottawa Marshall & Murray has successfully provided Cost Consulting services for nearly 40 years offering unbiased and independent advice with…” Source: RevenueBase Database · checked Sep 23, 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: commercial construction consulting firms. 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 commercial construction consulting firms.
Partial evidence: Its own public description names part of commercial construction consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name commercial construction consulting firms. 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 14 of 36 commercial construction consulting firms based in London, Canada

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Commercial construction consulting firms based in London, Canada at a glance

As of Sep 23, 2026

49.3%Verified-email coverage

7.6Average contacts per company

11-50Median size (employees)

Sep 23, 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 36 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 commercial construction consulting firms, 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 “commercial construction consulting firms”. 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 commercial construction consulting firms), 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 commercial construction consulting firms, 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, 134 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 23, 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.

Commercial construction consulting firms by metro in Canada

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 commercial construction consulting firms, 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 commercial construction consulting firms are there based in London, Canada?

RevenueBase identified 36 commercial construction consulting firms 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?

Michael Clark Construction, headquartered in London, tops this list with the largest team on record.

Which city in Canada has the most commercial construction consulting firms?

Toronto leads Canada with 448 headquartered companies, followed by Vancouver (238) and Montreal (214). London has 36.

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 134 verified decision-maker contacts tracked across these 36 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 23, 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.