Company lists · Data refreshed September 2026

Top 25 Climate tech startups based in Canada

Name: Climate tech startups based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 202 companies tracked

RevenueBase identified 202 climate tech startups headquartered in Canada as of September 2026 and tracks 2,387 professional contacts across them, including 1,172 with verified work emails. Toronto is the largest hub.

This list covers climate tech startups 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 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

202Companies

2,387Contacts tracked

1,172Verified emails

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The 25 largest climate tech startups based in Canada

Ranked by team size

Top 25 of 202 climate tech startups based in Canada, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to climate tech startups: 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	Carbon Engineering	Indirect evidence	Squamish, CanadaHQ checked Sep 19, 2026	51-200	184 contacts →
	Indirect evidence “Carbon Engineering (CE) is a Canadian-based clean energy company leading the commercialization of groundbreaking technology that captures CO₂ directly from air, and a second…” Source: RevenueBase Database · checked Sep 19, 2026
2	Clean Foundation	Partial evidence	Dartmouth, NS, CanadaHQ checked Sep 19, 2026	51-200	157 contacts →
	Partial evidence “Clean Foundation helps the communities in which we work make real progress toward a cleaner future by taking on climate change challenges.” Source: RevenueBase Database · checked Sep 19, 2026
3	Foresight Canada	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 19, 2026	11-50	143 contacts →
	Indirect evidence “In the world we’re building, sustainability isn't a buzzword.” Source: RevenueBase Database · checked Sep 19, 2026
4	Blackstone Energy Services INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	51-200	98 contacts →
	Indirect evidence “Blackstone Energy is an energy transition company that delivers responsible energy and carbon management.” Source: RevenueBase Database · checked Sep 19, 2026
5	Énergère	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 19, 2026	51-200	81 contacts →
	Indirect evidence “Depuis sa fondation en 1997, Énergère (GDI-Ainsworth) est le leader de la transition énergétique, de l’efficacité énergétique et des réductions des émissions de gaz à effet de…” Source: RevenueBase Database · checked Sep 19, 2026
6	Akonovia	Indirect evidence	Montréal, CanadaHQ checked Sep 19, 2026	51-200	73 contacts →
	Indirect evidence “Akonovia helps you with your energy efficiency and decarbonization goals.” Source: RevenueBase Database · checked Sep 19, 2026
7	CEM Engineering	Indirect evidence	St. Catharines, ON, CanadaHQ checked Sep 19, 2026	51-200	71 contacts →
	Indirect evidence “At CEM, we believe energy clean energy system should meet its full potential and we've spent the last 20 years specializing in molecule-based decarbonization projects.” Source: RevenueBase Database · checked Sep 19, 2026
8	Clearblue Markets	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	51-200	66 contacts →
	Indirect evidence “ClearBlue empowers clients to take action, manage risk and realize value in the carbon markets via technology-enabled solutions.” Source: RevenueBase Database · checked Sep 19, 2026
9	Arcadian Projects INC	Indirect evidence	New Hamburg, ON, CanadaHQ checked Sep 19, 2026	51-200	54 contacts →
	Indirect evidence “Building a Resilient Future, Together At Arcadian Projects, we’re driven by a deep commitment to a better tomorrow.” Source: RevenueBase Database · checked Sep 19, 2026
10	SSG Sustainability Solutions Group	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 19, 2026	11-50	50 contacts →
	Partial evidence “We are Canada’s leading climate planners.” Source: RevenueBase Database · checked Sep 19, 2026
11	Ekona Power	Indirect evidence	Burnaby, BC, CanadaHQ checked Sep 19, 2026	11-50	49 contacts →
	Indirect evidence “With a deep commitment to clean energy and environmental solutions, we are developing a breakthrough technology that transforms the way we produce clean hydrogen.” Source: RevenueBase Database · checked Sep 19, 2026
12	Brightspot Climate	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 19, 2026	11-50	45 contacts →
	Partial evidence “Brightspot Climate Inc.” Source: RevenueBase Database · checked Sep 19, 2026
13	Sensorup INC	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	11-50	44 contacts →
	Indirect evidence “Heavy industry built systems of record, then systems of insight, but they don't give you what you need to act on it.” Source: RevenueBase Database · checked Sep 19, 2026
14	Ostrom Climate Solutions INC	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 19, 2026	11-50	39 contacts →
	Partial evidence “Ostrom Climate is one of North America’s leading providers of carbon management solutions.” Source: RevenueBase Database · checked Sep 19, 2026
15	Karbon-X	Partial evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	11-50	37 contacts →
	Partial evidence “Where trusted climate solutions meet real business outcomes.” Source: RevenueBase Database · checked Sep 19, 2026
16	Highwood Emissions Management	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	11-50	34 contacts →
	Indirect evidence “We are emissions reduction experts with a vision for a world with near-zero oil & gas methane emissions.” Source: RevenueBase Database · checked Sep 19, 2026
17	Enerzam	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 19, 2026	11-50	33 contacts →
	Indirect evidence “At EnerZam, we provide innovative engineering solutions that drive your sustainability initiatives and help you achieve your decarbonization goals.” Source: RevenueBase Database · checked Sep 19, 2026
18	Viridis Terra	Strong evidence	Lévis, QC, CanadaHQ checked Sep 19, 2026	11-50	29 contacts →
	Strong evidence “Viridis Terra is a climate tech company with technology advanced nature-based solutions.” Source: RevenueBase Database · checked Sep 19, 2026
19	Fokabs	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	11-50	28 contacts →
	Partial evidence “FOKABS’ mission is to advance climate-resilient and low-carbon development solutions and lifestyles that protect the environment.” Source: RevenueBase Database · checked Sep 19, 2026
20	Noventa Energy Partners	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	27 contacts →
	Indirect evidence “Noventa is a renewable energy company providing proprietary solutions to reduce carbon emissions and manage energy costs through a full suite of services that range from…” Source: RevenueBase Database · checked Sep 19, 2026
21	Westgen Technologies	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	51-200	26 contacts →
	Indirect evidence “Westgen Technologies is a trusted leader in emissions reduction solutions for the oil & gas industry.” Source: RevenueBase Database · checked Sep 19, 2026
22	Carbon Management Canada	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	11-50	25 contacts →
	Indirect evidence “At Carbon Management Canada, our mission is to support the advancement of technologies to reduce carbon emissions in large-scale industry.” Source: RevenueBase Database · checked Sep 19, 2026
23	Pathways Alliance	Partial evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	11-50	24 contacts →
	Partial evidence “Pathways Alliance is working with the governments of Canada and Alberta on an ambitious plan to address climate change.” Source: RevenueBase Database · checked Sep 19, 2026
24	power-q.inc	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 19, 2026	11-50	23 contacts →
	Indirect evidence “Power Q serves the energy sector.” Source: RevenueBase Database · checked Sep 19, 2026
25	Invert INC	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	11-50	21 contacts →
	Indirect evidence “Invert, a certified B-Corp, ICROA approved, and award-winning project developer, upholds the highest standards of environmental and social responsibility while advancing…” Source: RevenueBase Database · checked Sep 19, 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: climate tech startups. 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 climate tech startups.
Partial evidence: Its own public description names part of climate tech startups, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name climate tech startups. 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 202 climate tech startups based in Canada

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Climate tech startups based in Canada at a glance

As of Sep 19, 2026

49.1%Verified-email coverage

11.8Average contacts per company

1-10Median size (employees)

20.8%Largest-city concentration · Toronto

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

126

11-50

51-200

201-500

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 202 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 climate tech startups, 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 “climate tech startups”. 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 climate tech startups), 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 climate tech startups, 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, 1,172 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.

Climate tech startups by metro

Climate tech startups in Toronto42
Climate tech startups in Calgary32

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 climate tech startups, 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 climate tech startups are there based in Canada?

RevenueBase identified 202 climate tech startups 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?

Carbon Engineering, headquartered in Squamish, tops this list with the largest team on record.

Which city has the most climate tech startups?

Toronto leads with 42 headquartered companies, followed by Calgary (32) and Vancouver (23).

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 1,172 verified decision-maker contacts tracked across these 202 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.