Company lists · Data refreshed September 2026

Top 12 Tenant improvement contractors based in Montreal, Canada

RevenueBase identified 42 tenant improvement contractors headquartered in Montreal, Canada as of September 2026 and tracks 199 professional contacts across them, including 77 with verified work emails. Toronto is the largest hub.

This list covers tenant improvement contractors headquartered in Montreal, 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 19, 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 19, 2026 86% judged on-target in blind review
42Companies
199Contacts tracked
77Verified emails
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The 12 largest tenant improvement contractors based in Montreal, Canada

Ranked by team size
Top 12 of 42 tenant improvement contractors based in Montreal, Canada, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to tenant improvement 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceMontreal, QC, CanadaHQ checked Sep 19, 202611-5019 contacts →

Indirect evidence

“Having been in business for more than twenty five years, API offers custom office designs optimizing both ergonomics and space utilization.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceMontreal, QC, CanadaHQ checked Sep 19, 202611-5018 contacts →

Indirect evidence

“A personal approach to designing beautiful, thoughtful spaces is what we strive for.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceMontreal, QC, CanadaHQ checked Sep 19, 202611-5015 contacts →

Indirect evidence

“Specializing in commercial, industrial and institutional renovation, Russco Construction pioneers an innovative, client-focused approach to construction.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceMontreal, QC, CanadaHQ checked Sep 19, 202611-5012 contacts →

Indirect evidence

“Fearless Design.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceMontreal, QC, CanadaHQ checked Sep 19, 202611-5011 contacts →

Indirect evidence

“We transform your house into a home and strive to impress.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceMontreal, QC, CanadaHQ checked Sep 19, 202611-508 contacts →

Indirect evidence

“Clairoux offers interior design services for residential, commercial, real estate and identity development projects.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceMontreal, QC, CanadaHQ checked Sep 19, 202611-507 contacts →

Indirect evidence

“Established in 2002, Ruscio Studio is a commercial interior design studio in full growth.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceMontreal, QC, CanadaHQ checked Sep 19, 202611-506 contacts →

Indirect evidence

“BAM Concept is a project management company specializing in high-end interior and exterior residential renovations.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceMontreal, QC, CanadaHQ checked Sep 19, 202611-505 contacts →

Indirect evidence

“GAWI - Transforming Spaces through Renovations & Construction We are a leading provider of residential, commercial, industrial and institutional renovation and construction…”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceMontreal, QC, CanadaHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

“Jackson Renovations Inc specializes in commercial & residential renovations ensuring that all our clients are provided with the highest-end finishing.”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceMontreal, QC, CanadaHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

“At Knock on Wood Design, your concept is planned and executed with a unique turnkey approach.”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceMontreal, QC, CanadaHQ checked Sep 19, 202611-501 contacts →

Indirect evidence

“We specialize in workspace design and construction.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 12 of 42 tenant improvement contractors based in Montreal, Canada

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 77 reachable decision-makers.

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Tenant improvement contractors based in Montreal, Canada at a glance

As of Sep 19, 2026
38.7%Verified-email coverage
4.7Average contacts per company
1-10Median size (employees)
261.9%Largest-city concentration · Toronto
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
26
11-50
16

Email recency for this list is measured across the whole Canada list rather than for Montreal, so it is reported there. Company counts and contact totals on this page are exact for Montreal, over 42 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 tenant improvement 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 Montreal, Canada whose own description of what they do matches “tenant improvement 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 tenant improvement 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 tenant improvement contractors, and records with no verified work email. Companies headquartered outside Montreal 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, 77 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 19, 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.

Tenant improvement contractors 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 tenant improvement 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 tenant improvement contractors are there based in Montreal, Canada?

RevenueBase identified 42 tenant improvement contractors headquartered in Montreal, 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?

Groupe API, headquartered in Montreal, tops this list with the largest team on record.

Which city has the most tenant improvement contractors?

Toronto leads with 110 headquartered companies, followed by Vancouver (76) and Calgary (63).

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 77 verified decision-maker contacts tracked across these 42 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 19, 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.