Company lists · Data refreshed September 2026

Top 25 Watershed protection organizations based in Canada

Name: Watershed protection organizations based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 84 companies tracked

RevenueBase identified 84 watershed protection organizations headquartered in Canada as of September 2026 and tracks 2,376 professional contacts across them, including 1,122 with verified work emails. Guelph is the largest hub.

This list covers watershed protection organizations 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 22, 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 22, 2026 86% judged on-target in blind review

84Companies

2,376Contacts tracked

1,122Verified emails

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The 25 largest watershed protection organizations based in Canada

Ranked by team size

Top 25 of 84 watershed protection organizations based in Canada, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to watershed protection organizations: 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	Toronto And Region Conservation Authority Trca	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 22, 2026	501-1,000	961 contacts →
	Indirect evidence “TRCA’s commitment to its employees has earned recognition for a second consecutive year as one of Greater Toronto’s Top Employers for 2026, reflecting the organization’s…” Source: RevenueBase Database · checked Sep 22, 2026
2	Grand River Conservation Authority	Indirect evidence	Cambridge, ON, CanadaHQ checked Sep 22, 2026	201-500	167 contacts →
	Indirect evidence “The Grand River Conservation Authority (GRCA) manages the water and other natural resources on behalf of 39 municipalities and close to one million residents of the Grand River…” Source: RevenueBase Database · checked Sep 22, 2026
3	Hamilton Conservation Authority	Indirect evidence	Hamilton, ON, CanadaHQ checked Sep 22, 2026	51-200	128 contacts →
	Indirect evidence “Hamilton Conservation Authority, located at the western end of Lake Ontario, is the area’s largest environmental management agency, and is dedicated to the conservation and…” Source: RevenueBase Database · checked Sep 22, 2026
4	Lake Simcoe Region Conservation Authority Lsrca	Partial evidence	Newmarket, ON, CanadaHQ checked Sep 22, 2026	51-200	91 contacts →
	Partial evidence “Lake Simcoe Region Conservation Authority (LSRCA) is a local watershed management organization incorporated under the Conservation Authorities Act (1946).” Source: RevenueBase Database · checked Sep 22, 2026
5	South Nation Conservation	Partial evidence	Finch, ON, CanadaHQ checked Sep 22, 2026	11-50	46 contacts →
	Partial evidence “South Nation Conservation has a strong history in watershed management and leadership in applying sustainability practices.” Source: RevenueBase Database · checked Sep 22, 2026
6	Aquaaction	Partial evidence	Montreal, QC, CanadaHQ checked Sep 22, 2026	11-50	38 contacts →
	Partial evidence “AquaAction is a registered charity and and non-profit organization in Canada and the United States, focused on restoring, protecting and conserving freshwater.” Source: RevenueBase Database · checked Sep 22, 2026
7	Swim Drink Fish Canada	Indirect evidence	303, CanadaHQ checked Sep 22, 2026	11-50	34 contacts →
	Indirect evidence “The things people value most in life - family and friendship, culture, freedom, and opportunity - all depend on access to swimmable, drinkable, fishable waters.” Source: RevenueBase Database · checked Sep 22, 2026
8	Kawartha Conservation	Partial evidence	Lindsay, ON, CanadaHQ checked Sep 22, 2026	11-50	29 contacts →
	Partial evidence “Kawartha Conservation is a watershed-based, non-profit environmental organization that helps ensure the conservation, restoration, and responsible management of water, land, and…” Source: RevenueBase Database · checked Sep 22, 2026
9	Coastal Action	Indirect evidence	Mahone Bay, NS, CanadaHQ checked Sep 22, 2026	11-50	26 contacts →
	Indirect evidence “Coastal Action is an environmental non-profit based on the South Shore of Nova Scotia.” Source: RevenueBase Database · checked Sep 22, 2026
10	Living Lakes Canada	Partial evidence	Invermere, BC, CanadaHQ checked Sep 22, 2026	11-50	26 contacts →
	Partial evidence “Living Lakes Canada is a national water stewardship non-profit working to protect Canada’s lakes, rivers, groundwater, wetlands and watersheds impacted by climate change.” Source: RevenueBase Database · checked Sep 22, 2026
11	Mississippi Valley Conservation Authority	Indirect evidence	Carleton Place, ON, CanadaHQ checked Sep 22, 2026	11-50	25 contacts →
	Indirect evidence “Mississippi Valley Conservation Authority (MVCA) is one of 36 Conservation Authorities in Ontario.” Source: RevenueBase Database · checked Sep 22, 2026
12	Ottawa Riverkeeper	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 22, 2026	11-50	25 contacts →
	Indirect evidence “The Ottawa River is the source of drinking water for several million people, and it provides us with a vast playground for everything from sailing and swimming to paddle sports…” Source: RevenueBase Database · checked Sep 22, 2026
13	Quinte Conservation	Strong evidence	Belleville, ON, CanadaHQ checked Sep 22, 2026	11-50	22 contacts →
	Strong evidence “Quinte Conservation is a watershed-based nonprofit environmental protection agency.” Source: RevenueBase Database · checked Sep 22, 2026
14	Lower Thames Valley Conservation Authority	Partial evidence	Chatham-kent, ON, CanadaHQ checked Sep 22, 2026	1-10	20 contacts →
	Partial evidence “a watershed based partner, working with local communities, providing services and information to efficiently protect and enhance the environment for present and future generations” Source: RevenueBase Database · checked Sep 22, 2026
15	St. Clair Region Conservation Authority	Indirect evidence	Strathroy, ON, CanadaHQ checked Sep 22, 2026	11-50	19 contacts →
	Indirect evidence “The St.” Source: RevenueBase Database · checked Sep 22, 2026
16	Otonabee Conservation	Partial evidence	Peterborough, ON, CanadaHQ checked Sep 22, 2026	11-50	19 contacts →
	Partial evidence “Otonabee Conservation is a watershed-based, non-profit environmental organization that helps ensure the conservation, restoration, and responsible management of water, land, and…” Source: RevenueBase Database · checked Sep 22, 2026
17	Saskatchewan Association Of Watersheds	Indirect evidence	Moose Jaw, SK, CanadaHQ checked Sep 22, 2026	11-50	19 contacts →
	Indirect evidence “Our vision is for the natural resource of water to be protected and conserved in Saskatchewan.” Source: RevenueBase Database · checked Sep 22, 2026
18	Raisin Region Conservation Authority	Indirect evidence	Cornwall, ON, CanadaHQ checked Sep 22, 2026	11-50	18 contacts →
	Indirect evidence “The Raisin Region Conservation Authority (RRCA) is one of 36 Conservation Authorities in Ontario.” Source: RevenueBase Database · checked Sep 22, 2026
19	Acap Cape Breton	Indirect evidence	Sydney, NS, CanadaHQ checked Sep 22, 2026	11-50	18 contacts →
	Indirect evidence “The Atlantic Coastal Action Program (ACAP) Cape Breton is an environmental non-profit charitable community organization.” Source: RevenueBase Database · checked Sep 22, 2026
20	Rappel	Partial evidence	Sherbrooke, QC, CanadaHQ checked Sep 22, 2026	11-50	18 contacts →
	Partial evidence “Le RAPPEL est une coopérative de solidarité en protection de l’eau.” Source: RevenueBase Database · checked Sep 22, 2026
21	Ganaraska Region Conservation Authority	Partial evidence	Port Hope, ON, CanadaHQ checked Sep 22, 2026	11-50	17 contacts →
	Partial evidence “The Ganaraska Region Conservation Authority's overall goal is the conservation, restoration, development and management of natural resources on a watershed basis while providing…” Source: RevenueBase Database · checked Sep 22, 2026
22	Groupe D'éducation ET D'écosurveillance DE L'eau G3e	Indirect evidence	Québec, QC, CanadaHQ checked Sep 22, 2026	11-50	17 contacts →
	Indirect evidence “Depuis 1989, nous développons des programmes qui encouragent les citoyens de tous âges à accroître leur compréhension des milieux naturels aquatiques et à participer activement à…” Source: RevenueBase Database · checked Sep 22, 2026
23	Ontario Streams	Indirect evidence	Aurora, ON, CanadaHQ checked Sep 22, 2026	1-10	13 contacts →
	Indirect evidence “Established in 1995, Ontario Streams is an environmental charity dedicated to the conservation and rehabilitation of streams and wetlands, through education and community…” Source: RevenueBase Database · checked Sep 22, 2026
24	Maitland Conservation	Indirect evidence	Wroxeter, ON, CanadaHQ checked Sep 22, 2026	11-50	12 contacts →
	Indirect evidence “Maitland Conservation is committed to working with our community partners to create a healthier environment.” Source: RevenueBase Database · checked Sep 22, 2026
25	Lakehead Region Conservation Authority	Indirect evidence	Thunder Bay, ON, CanadaHQ checked Sep 22, 2026	11-50	8 contacts →
	Indirect evidence “Lakehead Region Conservation Authority is an environmental services company based out of Canada.” Source: RevenueBase Database · checked Sep 22, 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: watershed protection organizations. 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 watershed protection organizations.
Partial evidence: Its own public description names part of watershed protection organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name watershed protection organizations. 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 84 watershed protection organizations based in Canada

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Watershed protection organizations based in Canada at a glance

As of Sep 22, 2026

47.2%Verified-email coverage

28.3Average contacts per company

1-10Median size (employees)

3.6%Largest-city concentration · Guelph

Sep 22, 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 worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 84 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 watershed protection organizations, 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 “watershed protection organizations”. 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 watershed protection organizations), 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 watershed protection organizations, 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, 1,122 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 22, 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 watershed protection organizations, 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 watershed protection organizations are there based in Canada?

RevenueBase identified 84 watershed protection organizations 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?

Toronto And Region Conservation Authority Trca, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most watershed protection organizations?

Guelph leads with 3 headquartered companies, followed by Calgary (2) and Desbarats (2).

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 1,122 verified decision-maker contacts tracked across these 84 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 22, 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.