Company lists · Data refreshed September 2026

Top 25 Watershed management organizations based in Canada

Name: Watershed management 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 74 companies tracked

RevenueBase identified 74 watershed management organizations headquartered in Canada as of September 2026 and tracks 2,010 professional contacts across them, including 1,108 with verified work emails. Quebec is the largest hub.

This list covers watershed management 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

74Companies

2,010Contacts tracked

1,108Verified emails

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The 25 largest watershed management organizations based in Canada

Ranked by team size

Top 25 of 74 watershed management 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 management 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	Partial evidence	Hamilton, ON, CanadaHQ checked Sep 22, 2026	51-200	128 contacts →
	Partial 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	Strong evidence	Newmarket, ON, CanadaHQ checked Sep 22, 2026	51-200	91 contacts →
	Strong 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	Civica Infrastructure INC	Indirect evidence	Vaughan, ON, CanadaHQ checked Sep 22, 2026	11-50	69 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
6	Central Lake Ontario Conservation Authority	Partial evidence	Oshawa, ON, CanadaHQ checked Sep 22, 2026	11-50	54 contacts →
	Partial evidence “Central Lake Ontario Conservation (CLOCA) is a local, community based, environmental organization and one of 36 Conservation Authorities responsible for managing watershed…” Source: RevenueBase Database · checked Sep 22, 2026
7	South Nation Conservation	Strong evidence	Finch, ON, CanadaHQ checked Sep 22, 2026	11-50	46 contacts →
	Strong evidence “South Nation Conservation has a strong history in watershed management and leadership in applying sustainability practices.” Source: RevenueBase Database · checked Sep 22, 2026
8	Kawartha Conservation	Strong evidence	Lindsay, ON, CanadaHQ checked Sep 22, 2026	11-50	29 contacts →
	Strong 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	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
10	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
11	Quinte Conservation	Partial evidence	Belleville, ON, CanadaHQ checked Sep 22, 2026	11-50	22 contacts →
	Partial evidence “Quinte Conservation is a watershed-based nonprofit environmental protection agency.” Source: RevenueBase Database · checked Sep 22, 2026
12	Waterlution Canada	Indirect evidence	Oakville, ON, CanadaHQ checked Sep 22, 2026	11-50	22 contacts →
	Indirect evidence “We must be bold in our endeavours and challenge traditional methods of dealing with global and complex water issues.” Source: RevenueBase Database · checked Sep 22, 2026
13	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
14	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
15	Otonabee Conservation	Strong evidence	Peterborough, ON, CanadaHQ checked Sep 22, 2026	11-50	19 contacts →
	Strong 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
16	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
17	Regroupement DES Organismes DE Bassins Versants DU Québec Robvq	Indirect evidence	Québec, QC, CanadaHQ checked Sep 22, 2026	1-10	13 contacts →
	Indirect evidence “Le Regroupement des organismes de bassins versants du Québec (ROBVQ) est un organisme à but non lucratif créé en novembre 2001 et reconnu par le ministère de l’Environnement et de…” Source: RevenueBase Database · checked Sep 22, 2026
18	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
19	Cogesaf	Indirect evidence	Sherbrooke, QC, CanadaHQ checked Sep 22, 2026	1-10	11 contacts →
	Indirect evidence “Le COGESAF a pour mission de concerter et mobiliser les acteurs pour la protection et la gestion durable et intégrée des ressources en eau (GIRE).” Source: RevenueBase Database · checked Sep 22, 2026
20	Severn Sound Environmental Association	Indirect evidence	Port Mcnicoll, ON, CanadaHQ checked Sep 22, 2026	1-10	10 contacts →
	Indirect evidence “The Severn Sound Environmental Association (SSEA) is a Joint Municipal Service Board under the Municipal Act (Section 202).” Source: RevenueBase Database · checked Sep 22, 2026
21	Agence DE Bassin Versant DES 7	Partial evidence	Gatineau, QC, CanadaHQ checked Sep 22, 2026	1-10	9 contacts →
	Partial evidence “Agence de bassin versant des 7 (ABV 7) ensures the integrated and concerted management of water resources, wetlands, and water bodies in a perspective of sustainability and…” Source: RevenueBase Database · checked Sep 22, 2026
22	Watershed Monitoring	Strong evidence	Québec, QC, CanadaHQ checked Sep 22, 2026	1-10	8 contacts →
	Strong evidence “WaterShed Monitoring intends to provide stakeholders involved in integrated watershed management with innovative technological solutions to address water quality data storing and…” Source: RevenueBase Database · checked Sep 22, 2026
23	Capsa, Organisme DE Bassin Versant Rivières Sainte-Anne, Portneuf ET Secteur LA Chevrotière	Indirect evidence	St-raymond, QC, CanadaHQ checked Sep 22, 2026	1-10	8 contacts →
	Indirect evidence “La CAPSA est un OBNL et un organisme de bassin versant (OBV) reconnu par le gouvernement dans la loi sur l'eau qui a pour mission d'offrir son expertise à la communauté afin…” Source: RevenueBase Database · checked Sep 22, 2026
24	Organisme DE Bassin Versant DU Témiscamingue	Indirect evidence	Ville-marie, QC, CanadaHQ checked Sep 22, 2026	1-10	7 contacts →
	Indirect evidence “L’Organisme de bassin versant du Témiscamingue (OBVT) est un organisme sans but lucratif ayant pour objectif la protection et l’amélioration de la qualité de l’eau sur le…” Source: RevenueBase Database · checked Sep 22, 2026
25	OBV Yamaska	Indirect evidence	Granby, QC, CanadaHQ checked Sep 22, 2026	1-10	7 contacts →
	Indirect evidence 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 management 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 management organizations.
Partial evidence: Its own public description names part of watershed management organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name watershed management 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 74 watershed management organizations based in Canada

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Watershed management organizations based in Canada at a glance

As of Sep 22, 2026

55.1%Verified-email coverage

27.2Average contacts per company

1-10Median size (employees)

5.4%Largest-city concentration · Quebec

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 74 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 management 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 management 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 management 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 management 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, 1,108 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 management 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 management organizations are there based in Canada?

RevenueBase identified 74 watershed management 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 management organizations?

Quebec leads with 4 headquartered companies, followed by Toronto (3) and Guelph (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 1,108 verified decision-maker contacts tracked across these 74 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.