Company lists · Data refreshed September 2026

Top 25 Construction insurance underwriters based in Canada

RevenueBase identified 48 construction insurance underwriters headquartered in Canada as of September 2026 and tracks 1,758 professional contacts across them, including 556 with verified work emails. Toronto is the largest hub.

This list covers construction insurance underwriters 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 16, 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 16, 2026 86% judged on-target in blind review
48Companies
1,758Contacts tracked
556Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest construction insurance underwriters based in Canada

Ranked by team size
Top 25 of 48 construction insurance underwriters based in Canada, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to construction insurance underwriters: 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 evidenceRegina, SK, CanadaHQ checked Sep 16, 2026n/a419 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceVancouver, BC, CanadaHQ checked Sep 16, 202651-200112 contacts →

Indirect evidence

“One of the largest Canadian Managing Underwriting Agencies http://premiergroup.ca/ Established in 1989 * Over 150 employees located in 6 locations across Canada - HQ Vancouver…”

Source: RevenueBase Database · checked Sep 16, 2026
3Partial evidenceLaval, QC, CanadaHQ checked Sep 16, 202651-20059 contacts →

Partial evidence

“Since its foundation in 1994, MP2B’s mandate has been to offer the best insurance and surety bond products on the market.”

Source: RevenueBase Database · checked Sep 16, 2026
4Partial evidenceAjax, ON, CanadaHQ checked Sep 16, 202611-5043 contacts →

Partial evidence

“Founded in 1981, The Insurance Market is a trusted partner and leading provider of holistic insurance, financial and risk management services.”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceToronto, ON, CanadaHQ checked Sep 16, 202611-5042 contacts →

Indirect evidence

“At INTECH, we empower capital to flow with confidence.”

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceToronto, ON, CanadaHQ checked Sep 16, 2026201-50035 contacts →

Partial evidence

“In today’s rapidly changing business environment, you need an insurance company you can count on.”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceDrummondville, QC, CanadaHQ checked Sep 16, 202651-20035 contacts →

Indirect evidence

“Synex Assurance | Verrier et Associés, cabinets en assurances de dommages et conseillers en gestion des risques, est l'une des plus importantes firmes privées en assurances…”

Source: RevenueBase Database · checked Sep 16, 2026
8Partial evidenceMarkham, ON, CanadaHQ checked Sep 16, 202611-5032 contacts →

Partial evidence

“Since 1977, iv3 has been continuously providing innovative insurance solutions that complement the evolving needs of a diverse marketplace.”

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidenceToronto, ON, CanadaHQ checked Sep 16, 202611-5030 contacts →

Indirect evidence

“Trinity is a true underwriting manager with in-house authority and underwriting expertise.”

Source: RevenueBase Database · checked Sep 16, 2026
10Partial evidenceMarkham, ON, CanadaHQ checked Sep 16, 202611-5027 contacts →

Partial evidence

“The Excess Underwriting team are expert commercial underwriters for Lloyd's of London.”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceMontréal, QC, CanadaHQ checked Sep 16, 202611-5021 contacts →

Indirect evidence

“Assurance des entreprises- Biens - Responsabilité civile et excédentaire - Responsabilité des administrateurs et dirigeants - Erreurs et omissions - Risques de chantier et…”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceJonquière, QC, CanadaHQ checked Sep 16, 20261-1016 contacts →

Indirect evidence

“Chef de file des courtiers en assurance au Saguenay–Lac-Saint-Jean pour la qualité et l’efficacité de ses produits et services, le Groupe Cantin et Gagnon se démarque de sa…”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceDieppe, CanadaHQ checked Sep 16, 20261-1016 contacts →

Partial evidence

“Protecting your company requires the right mix of insurance products.”

Source: RevenueBase Database · checked Sep 16, 2026
14Partial evidenceVancouver, BC, CanadaHQ checked Sep 16, 202611-5013 contacts →

Partial evidence

“With over 40 years in business, S&S Insurance Services Ltd.”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceJoliette, QC, CanadaHQ checked Sep 16, 202611-509 contacts →

Indirect evidence

“Vos courtiers experts pour : Cautionnement Restauration Chantier Immeubles à revenus Assurance entreprise Assurance auto commerciale Assurance habitation Flip Locatif”

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidenceWaterloo, ON, CanadaHQ checked Sep 16, 20261-108 contacts →

Indirect evidence

“Introducing ODIS Underwriting’s owners and executive team: Joyce Charman, Bruce Norman, and William Chen!”

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceSt-hubert, QC, CanadaHQ checked Sep 16, 20261-104 contacts →

Indirect evidence

“Conseillers indépendants en gestion de risques d'assurance.”

Source: RevenueBase Database · checked Sep 16, 2026
18Partial evidenceVaughan, ON, CanadaHQ checked Sep 16, 202651-2003 contacts →

Partial evidence

“Established in 1966, Masters Insurance is one of Ontario’s largest and most trusted independent brokerages.”

Source: RevenueBase Database · checked Sep 16, 2026
19Strong evidenceVancouver, BC, CanadaHQ checked Sep 16, 20261-102 contacts →

Strong evidence

“Network provides a full range of insurance and bonding services for all types and sizes of commercial operations with particular emphasis on the construction industry.”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceMontreal, QC, CanadaHQ checked Sep 16, 202651-2002 contacts →

Indirect evidence

“Spécialisé dans les assurances de risques hors norme, APRIL vous propose une large gamme d’assurances pour les particuliers et les entreprises.”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceTrois-rivières, QC, CanadaHQ checked Sep 16, 202611-501 contacts →

Indirect evidence

“Cautionnement Expert est l’un des premiers bureaux de courtage au Québec dont les activités sont axées exclusivement dans le secteur du cautionnement.”

Source: RevenueBase Database · checked Sep 16, 2026
22Strong evidenceVictoria, BC, CanadaHQ checked Sep 16, 20261-101 contacts →

Strong evidence

“FX Insurance Brokers service the design, construction, and legal industry, supplying insurance products for each respective industry.”

Source: RevenueBase Database · checked Sep 16, 2026
23Partial evidenceGibsons, BC, CanadaHQ checked Sep 16, 20261-101 contacts →

Partial evidence

“Talbot Insurance Services is a locally owned and operated, full service Insurance Brokerage located on the Sunshine Coast in beautiful BC.”

Source: RevenueBase Database · checked Sep 16, 2026
24Partial evidenceVancouver, BC, CanadaHQ checked Sep 16, 20261-101 contacts →

Partial evidence

“Ocean Falls Insurance Services is an insurance agency focused on unique and hard to place commercial risks.”

Source: RevenueBase Database · checked Sep 16, 2026
25Indirect evidenceAlma, QC, CanadaHQ checked Sep 16, 20261-101 contacts →

Indirect evidence

“Les assurances Marie Gagnon est un cabinet d'assurance de dommages en : Habitation, automobile, entreprise, responsabilité et cautionnement.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 48 construction insurance underwriters based in Canada

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 556 reachable decision-makers.

Free signup · no credit card

View the full list →

Construction insurance underwriters based in Canada at a glance

As of Sep 16, 2026
31.6%Verified-email coverage
36.6Average contacts per company
11-50Median size (employees)
20.8%Largest-city concentration · Toronto
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
15
51-200
10
201-500
3

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 48 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 construction insurance underwriters, 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 “construction insurance underwriters”. 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 construction insurance underwriters), 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 construction insurance underwriters, 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, 556 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 16, 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 construction insurance underwriters, 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 construction insurance underwriters are there based in Canada?

RevenueBase identified 48 construction insurance underwriters 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?

Insurance, headquartered in Regina, tops this list with the largest team on record.

Which city has the most construction insurance underwriters?

Toronto leads with 10 headquartered companies, followed by Vancouver (5) and Montreal (3).

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 556 verified decision-maker contacts tracked across these 48 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 16, 2026.

Ready to reach these companies? Verified emails and direct dials for all 48 construction insurance underwriters based in Canada. Start with a free account, no credit card.

Download this list →

Related lists

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.