Company lists · Data refreshed September 2026

Top 15 Commercial construction consulting firms based in Markham, Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 41 companies tracked

RevenueBase identified 41 company matches for commercial construction consulting firms associated with Markham, Canada as of September 2026 and tracks 452 professional contacts across them, including 223 with verified work emails. Across Canada, Toronto is the largest hub for this category (448 companies); Markham has 41.

This list covers company matches for commercial construction consulting firms associated with Markham, 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 September 23, 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 Sep 23, 2026 How this list was built

41Companies

452Contacts tracked

223Verified emails

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The 15 largest commercial construction consulting firms based in Markham, Canada

Ranked by team size

Top 15 of 41 company matches for commercial construction consulting firms based in Markham, Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 23, 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	DSEL	Exact match	Markham, ON, CanadaHQ recorded Sep 23, 2026	51-200	136 contacts →
	Exact match “Accelerating Subdivisions.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
2	Urbantech Consulting A Division Of Leighton-Zec LTD	Exact match	Markham, ON, CanadaHQ recorded Sep 23, 2026	51-200	84 contacts →
	Exact match “Urbantech is the GTHA’s premier boutique Civil Engineering consulting firm.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
3	The Jesslin Group	Exact match	Markham, ON, CanadaHQ recorded Sep 23, 2026	11-50	28 contacts →
	Exact match “The Jesslin Group is a premium provider of construction management services to the commercial office sector.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
4	J And B Engineering INC	Exact match	Markham, ON, CanadaHQ recorded Sep 23, 2026	11-50	28 contacts →
	Exact match “J+B Engineering Inc.(J+B) is a privately owned national engineering firm providing integrated multi-disciplinary consulting engineering and project management services to…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
5	Hylan Group INC	Exact match	Markham, ON, CanadaHQ recorded Sep 23, 2026	11-50	18 contacts →
	Exact match “We are Certified General Contractors & Project Managers.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
6	4 Architecture INC	Exact match	Markham, ON, CanadaHQ recorded Sep 23, 2026	11-50	16 contacts →
	Exact match “The Firm’s Mission is to be recognized as a premier firm within the Architectural Profession that services public and private projects in the development industry.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
7	Husson Engineering Management	Exact match	Markham, ON, CanadaHQ recorded Sep 23, 2026	11-50	9 contacts →
	Exact match “HUSSON Limited is a civil engineering company based in Richmond Hill, Ontario dedicated to providing innovative, recognized and cost effective services to the Industrial…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
8	Master Edge Homes	Exact match	Markham, ON, CanadaHQ recorded Sep 23, 2026	11-50	8 contacts →
	Exact match “Master Edge Homes offers fully-integrated, luxurious design and construction management services that incorporate and honour each client’s unique preferences, style, and vision.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
9	KCL Group Limited	Exact match	Markham, ON, CanadaHQ recorded Sep 23, 2026	11-50	7 contacts →
	Exact match “KCL Group is a Construction Management and General Contracting company operating from Toronto, Ontario, Canada.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
10	Nova Decor Construction LTD	Exact match	Markham, ON, CanadaHQ recorded Sep 23, 2026	11-50	7 contacts →
	Exact match “At Nova Decor Construction we have the expertise in providing innovative concepts & ideas which will serve to enhance your business.Our design consultants.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
11	Best Brothers Group Of Companies	Exact match	Markham, ON, CanadaHQ recorded Sep 23, 2026	11-50	7 contacts →
	Exact match “We are a complete design and build company specialising in loft conversions, security system, extensions and renovations of residential or commercial properties in Toronto.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
12	Wang Architects INC	Exact match	Markham, ON, CanadaHQ recorded Sep 23, 2026	1-10	5 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
13	Kyco Engineering Limited	Exact match	Markham, ON, CanadaHQ recorded Sep 23, 2026	1-10	4 contacts →
	Exact match “KYCO Engineering Limited is a full service Mechanical and Electrical consultancy with extensive experience in retail, commercial, industrial and high-rise residential.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
14	M. Behar Planning & Design Limited	Exact match	Markham, ON, CanadaHQ recorded Sep 23, 2026	1-10	3 contacts →
	Exact match “M.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
15	Neo-Edge Construction	Exact match	Markham, ON, CanadaHQ recorded Sep 23, 2026	11-50	3 contacts →
	Exact match “Neo-Edge Construction is a full-service Design and Build company that specialize in construction and renovation projects within a $2-million value for commercial and industrial…” Recorded in the RevenueBase company graph · Sep 23, 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 “commercial construction consulting firms”. 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 15 of 41 commercial construction consulting firms based in Markham, Canada

See the full list, filter by size, metro and specialty, and access 223 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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

As of Sep 23, 2026

49.3%Verified-email coverage

11.0Average 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 Markham, so it is reported there. Company counts and contact totals on this page are exact for Markham, over 41 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 Markham, Canada whose business descriptions match “commercial construction consulting firms” 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 223 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 September 23, 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.

Commercial construction consulting firms 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 “commercial construction consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many commercial construction consulting firms are there based in Markham, Canada?

RevenueBase identified 41 company matches for commercial construction consulting firms associated with Markham, Canada as of September 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?

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

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

Toronto leads Canada with 448 company records, followed by Vancouver (238) and Montreal (214). Markham has 41.

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 223 professional contacts with verified work emails tracked across these 41 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 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 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.