Company lists · Data refreshed September 2026

Top 25 Engineering companies based in Ottawa, Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 89 companies tracked

This directory lists 89 engineering companies based in Ottawa, Canada, with 4,494 contacts and 1,323 email addresses. The list includes companies across engineering disciplines. Use it to identify potential suppliers, partners, and sales prospects as of September 2026. Across Canada, Calgary is the largest hub for this category (443 companies); Ottawa has 89.

Engineering companies apply scientific, mathematical, and technical principles to design, develop, test, and manage products, systems, structures, or industrial processes. This list covers companies that provide engineering design, consulting, testing, project management, or related technical services. Ranked by team size, largest first. Data current as of September 6, 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 6, 2026 86% judged on-target in blind review

89Companies

4,494Contacts tracked

1,323Verified emails

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The 25 largest engineering companies based in Ottawa, Canada

Ranked by team size

Top 25 of 89 engineering companies based in Ottawa, Canada, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to engineering companies: 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	JLR	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	201-500	532 contacts →
	Indirect evidence “J.L.” Source: RevenueBase Database · checked Sep 6, 2026
2	Tomlinson Group Of Companies	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	501-1,000	475 contacts →
	Indirect evidence “Starting with a single-axle dump truck in 1952, R.W.” Source: RevenueBase Database · checked Sep 6, 2026
3	Novatech Engineers, Planners & Landscape Architects	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	51-200	116 contacts →
	Strong evidence “We’re a dynamic team of over 120 professionals located in Ottawa, providing a wide range of planning, engineering and landscape architecture services to a diverse client base in…” Source: RevenueBase Database · checked Sep 6, 2026
4	Robinson Consultants INC	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	51-200	89 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 6, 2026
5	Goodkey, Weedmark & Associates Limited	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	51-200	80 contacts →
	Strong evidence “Goodkey Weedmark & Associates Limited is an award winning, mechanical and electrical engineering consulting firm serving a broad array of public and private sector clients since…” Source: RevenueBase Database · checked Sep 6, 2026
6	KROON	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	51-200	66 contacts →
	Indirect evidence “Founded in 1976, KROON provides comprehensive power technical solutions to the private and public sectors of all sizes.” Source: RevenueBase Database · checked Sep 6, 2026
7	Louis W Bray Construction Limited	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	51-200	64 contacts →
	Indirect evidence “Louis W.” Source: RevenueBase Database · checked Sep 6, 2026
8	LRL Engineering	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	11-50	56 contacts →
	Strong evidence “LRL Associates Ltd.(formerly known as Levac Robichaud Leclerc Associates Ltd.) is a multidisciplinary engineering firm which has been providing professional services since 1984.” Source: RevenueBase Database · checked Sep 6, 2026
9	Adjeleian Allen Rubeli Limited	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	51-200	45 contacts →
	Indirect evidence “With more than completed projects worldwide, many of which are recognized for their historical significance in Canada, Adjeleian Allen Rubeli Limited is one of Canada's leading…” Source: RevenueBase Database · checked Sep 6, 2026
10	ART Engineering INC	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	51-200	41 contacts →
	Strong evidence “ART Engineering is a multidisciplinary structural consultancy, providing practical solutions to real world problems.” Source: RevenueBase Database · checked Sep 6, 2026
11	Alliance Engineering & Construction LTD	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	51-200	38 contacts →
	Indirect evidence “Alliance offers Mechanical and Electrical Design and Construction services, providing integrated solutions across the industrial, commercial, institutional and high-rise…” Source: RevenueBase Database · checked Sep 6, 2026
12	Fishburn Sheridan Group Of Companies	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	11-50	35 contacts →
	Indirect evidence “Fishburn Sheridan & Associates is now part of MTE Consultants, the same team, now supported by a multidisciplinary firm.” Source: RevenueBase Database · checked Sep 6, 2026
13	Gradient Wind	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	11-50	34 contacts →
	Strong evidence “For 30 years, Gradient Wind Engineering has offered a comprehensive range of wind, snow, acoustic, noise and vibration engineering services to developers, architects, structural…” Source: RevenueBase Database · checked Sep 6, 2026
14	High Tech Genesis	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	51-200	25 contacts →
	Strong evidence “At HTG, we are focused on providing engineering services specifically to the high-tech sector.” Source: RevenueBase Database · checked Sep 6, 2026
15	Subsurface Geotech & Environmental	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	11-50	24 contacts →
	Indirect evidence “Geotechnical Engineers specializing in deep foundation design, inspection, and testing services and Tunnel and Embankment monitoring.” Source: RevenueBase Database · checked Sep 6, 2026
16	Cleland Jardine Engineering NOW BPA	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	51-200	23 contacts →
	Strong evidence “Cleland Jardine Engineering Ltd.(now BPA) is a consulting engineering firm specializing in the structural investigation, analysis, design and construction review of new buildings…” Source: RevenueBase Database · checked Sep 6, 2026
17	Blastek Engineering Group	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	11-50	19 contacts →
	Strong evidence “Blastek Engineering Group traces its experience back 25 years between Northern and Eastern Ontario leading the way.” Source: RevenueBase Database · checked Sep 6, 2026
18	STL Engineering	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	11-50	18 contacts →
	Strong evidence “Services in Mechanical, Hardware Engineering and Design.” Source: RevenueBase Database · checked Sep 6, 2026
19	PYE & Richards	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	11-50	17 contacts →
	Indirect evidence “Pye & Richards - Temprano & Young Architects Inc.(PR-TY) is Ottawa's oldest continuously practicing Architectural firm.” Source: RevenueBase Database · checked Sep 6, 2026
20	KWC Architects INC	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	11-50	17 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 6, 2026
21	DEI Engineering	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	11-50	17 contacts →
	Strong evidence “DEI Engineering is a leading provider of electronic design services which enable our clientele, to meet their timeline, budget, technology and resource needs.” Source: RevenueBase Database · checked Sep 6, 2026
22	Teraflex	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	51-200	16 contacts →
	Indirect evidence “Established in 1979, Teraflex provides electrical, communication and civil construction services for clients that include leading land and property developers; general contractors…” Source: RevenueBase Database · checked Sep 6, 2026
23	John G. Cooke & Associates LTD	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	11-50	15 contacts →
	Indirect evidence “John G.” Source: RevenueBase Database · checked Sep 6, 2026
24	Capacity Engineering	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	11-50	14 contacts →
	Strong evidence “Capacity Engineering is a leading engineering firm delivering expert structural analysis, design, and project management services.” Source: RevenueBase Database · checked Sep 6, 2026
25	Proeng	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	11-50	14 contacts →
	Indirect evidence “Building and Energy Engineers” Source: RevenueBase Database · checked Sep 6, 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: engineering companies. 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 engineering companies.
Partial evidence: Its own public description names part of engineering companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name engineering companies. 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 25 of 89 engineering companies based in Ottawa, Canada

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Engineering companies based in Ottawa, Canada at a glance

As of Sep 6, 2026

29.4%Verified-email coverage

50.5Average contacts per company

1-10Median size (employees)

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 89 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 engineering companies, 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 Ottawa, Canada whose own description of what they do matches “engineering companies”. 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 engineering companies), 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 engineering companies, and records with no verified work email. Companies headquartered outside Ottawa 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, 1,323 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 6, 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.

Engineering companies by metro in Canada

Frequently asked

How many engineering companies are based in Ottawa, Canada?

The directory lists 89 engineering companies based in Ottawa, Canada as of September 2026.

What services do engineering companies provide?

Engineering companies provide services such as design, consulting, testing, project management, and technical support across disciplines and industries.

How can I find contacts at engineering companies?

This directory includes 4,494 contacts and 1,323 email addresses associated with engineering companies.

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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.