Company lists · Data refreshed November 2026

Top 24 Construction contractors based in Ottawa, Canada

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 150 companies tracked

RevenueBase identified 150 company matches for construction contractors associated with Ottawa, Canada as of November 2026 and tracks 2,244 professional contacts across them, including 1,028 with verified work emails. Across Canada, Toronto is the largest hub for this category (372 companies); Ottawa has 150.

This list covers company matches for construction contractors associated with Ottawa, 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 November 6, 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 Nov 6, 2026 How this list was built

150Companies

2,244Contacts tracked

1,028Verified emails

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The 24 largest construction contractors based in Ottawa, Canada

Ranked by team size

Top 24 of 150 company matches for construction contractors based in Ottawa, Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	Colliers Project Leaders Canada	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	501-1,000	685 contacts →
	Exact match “Our project managers don’t just deliver projects on-time and on-budget-we integrate seamlessly with in-house resources, becoming a true partner committed to client success.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Louis W Bray Construction Limited	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	73 contacts →
	Exact match “Louis W.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	MP Lundy Construction INC	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	47 contacts →
	Exact match “Well respected by trades, clients and competitors alike; M.P.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Alliance Engineering & Construction LTD	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	47 contacts →
	Exact match “Alliance offers Mechanical and Electrical Design and Construction services, providing integrated solutions across the industrial, commercial, institutional and high-rise…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Dilfo Mechanical	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	45 contacts →
	Exact match “Dilfo Mechanical Limited is one of Eastern Ontario’s largest mechanical contracting firms, specializing in the full range of services, from large-scale design-build projects to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Thomas Fuller Construction Co. Limited	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	42 contacts →
	Exact match “With its heritage analogous to the history of Canada itself, The Fuller Group is the largest and oldest established locally-owned construction and development organization in…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Mcdonald Brothers Construction INC	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	33 contacts →
	Exact match “McDonald Brothers Construction - established in 1988 - is a General Contractor based in the Ottawa area which services primarily the Industrial, Commercial, and Institutional…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Rojo Construction Management INC	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	11-50	31 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Doran Contractors Limited	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	11-50	31 contacts →
	Exact match “When time, money, and quality count, people choose Doran Contractors Limited for peace of mind.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	RECL	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	11-50	29 contacts →
	Exact match “Ron Eastern Construction Ltd.(formerly know as Ron Engineering and Construction (Eastern) Ltd.) is a leading Canadian Construction Manager, Project Manager, Design-Builder and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Waterdon Construction LTD	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	27 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Aries Contracting Ottawa INC	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	11-50	26 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	BBS Construction Ontario LTD	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	11-50	25 contacts →
	Exact match “BUILDING A REPUTATION ON EXCELLENCE We are more than just builders, we're a single source solution to all your construction needs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Westview Projects INC	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	11-50	23 contacts →
	Exact match “Westview Projects is a full service General Contractor.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Premium Construction	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	11-50	21 contacts →
	Exact match “Since 2013, Premium Construction has offered services across all sectors (Industrial, Commercial, and institutional) providing General Contracting, Construction Management and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	M. Davis Landscape & Design INC	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	20 contacts →
	Exact match “Davis Landscape & Design’s commitment to excellence in the landscape construction industry in the Ottawa area dates back to the founding of the company in 1983 by Mike Davis.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Teraflex	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	19 contacts →
	Exact match “Established in 1979, Teraflex provides electrical, communication and civil construction services for clients that include leading land and property developers; general contractors…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	PYE & Richards	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	11-50	17 contacts →
	Exact match “Pye & Richards - Temprano & Young Architects Inc.(PR-TY) is Ottawa's oldest continuously practicing Architectural firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Bradford Construction Ltd.	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	11-50	17 contacts →
	Exact match “Since 1992 BRADFORD has been building for better health care in the National Capital region.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	ZW Management INC	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	11-50	17 contacts →
	Exact match “Founded in 1986, ZW Management Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	AWD Contractors	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	11-50	16 contacts →
	Exact match “At AWD Contractors we continue to be an integral partner in the construction industry by providing our clients with advanced products, sustainable solutions, and outstanding…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Brawn Construction LTD	Exact match	Ottawa, CanadaHQ recorded Nov 6, 2026	11-50	16 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Akman Construction INC	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	11-50	14 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Dalcon Constructors LTD	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	1-10	14 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 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 “construction contractors”. 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 24 of 150 construction contractors based in Ottawa, Canada

See the full list, filter by size, metro and specialty, and access 1,028 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Construction contractors based in Ottawa, Canada at a glance

As of Nov 6, 2026

45.8%Verified-email coverage

15.0Average contacts per company

11-50Median size (employees)

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

Email recency for this list is measured across the whole Canada list rather than for Ottawa, so it is reported there. Company counts and contact totals on this page are exact for Ottawa, over 150 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 Ottawa, Canada whose business descriptions match “construction contractors” 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 1,028 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 November 6, 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.

Construction contractors 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 “construction contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many construction contractors are there based in Ottawa, Canada?

RevenueBase identified 150 company matches for construction contractors associated with Ottawa, Canada as of November 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?

Colliers Project Leaders Canada tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in Canada has the most construction contractors?

Toronto leads Canada with 372 company records, followed by Calgary (258) and Edmonton (211). Ottawa has 150.

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 1,028 professional contacts with verified work emails tracked across these 150 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 November 6, 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.