Company lists · Data refreshed November 2026

Top 25 Upstream exploration companies based in Canada

RevenueBase identified 200 company matches for upstream exploration companies associated with Canada as of November 2026 and tracks 5,406 professional contacts across them, including 1,806 with verified work emails. Calgary is the largest hub.

This list covers company matches for upstream exploration companies associated with 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
200Companies
5,406Contacts tracked
1,806Verified emails
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The 25 largest upstream exploration companies based in Canada

Ranked by team size
Top 25 of 200 company matches for upstream exploration companies based in 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 2026501-1,000867 contacts →

Exact match

“Gran Tierra Energy Inc, together with its subsidiaries, is a company focused on oil and gas exploration and production in Azerbaijan, Canada, Colombia and Ecuador.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 2026201-500337 contacts →

Exact match

“Enerplus is an independent North American exploration and production company focused on developing our high-quality assets through a disciplined, returns-based capital program.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchWinnipeg, MB, CanadaHQ recorded Nov 6, 2026201-500287 contacts →

Exact match

“Tundra Oil & Gas is a wholly-owned business of Winnipeg-based James Richardson & Sons, Limited (JRSL), a private family company established in 1857.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 202651-200165 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchVancouver, BC, CanadaHQ recorded Nov 6, 202651-200160 contacts →

Exact match

“International Petroleum Corp.(IPC) is an international oil and gas exploration and production company with a high quality portfolio of assets located in Canada, Europe and South…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 202651-200157 contacts →

Exact match

“Tamarack Valley Energy Ltd (TVE) is an oil & energy company based out of, Calgary, Alberta, Canada.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 202651-200150 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchVancouver, BC, CanadaHQ recorded Nov 6, 202611-50135 contacts →

Exact match

“Equity provides top-notch geological and logistical services required to effectively manage mineral exploration projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 202651-20095 contacts →

Exact match

“Spartan is committed to creating value for its shareholders, focused on sustainability both in operations and financial performance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchYellowknife, NT, CanadaHQ recorded Nov 6, 202611-5084 contacts →

Exact match

“Aurora Geosciences delivers geology, geophysics, and field operations services across Canada and the United States, with a focus on learning, testing, and reducing risk throughout…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 202651-20081 contacts →

Exact match

“Divestco Geoscience is Canada’s largest integrated geoscience provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 2026201-50079 contacts →

Exact match

“Torxen is an exploration and production company focused on the development and optimization of conventional oil and gas assets in Southern Alberta.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 202651-20074 contacts →

Exact match

“Chinook Consulting is a Canadian company providing subsurface services, specialized in Wellsite Geology, Geosteering and Geoscience studies catering to the upstream energy…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchAurora, ON, CanadaHQ recorded Nov 6, 202651-20073 contacts →

Exact match

“Geotech is a privately owned company established in 1981, with corporate headquarters and research and development facility in Aurora, ON, Canada.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchToronto, ON, CanadaHQ recorded Nov 6, 202651-20070 contacts →

Exact match

“A geological firm advancing strategic exploration and mining, through the integration of data and innovative geological understanding.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchVal-d'or, QC, CanadaHQ recorded Nov 6, 202651-20051 contacts →

Exact match

“Abitibi Geophysics has over 30 years of experience in delivering solutions to geoscience challenges.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchVancouver, BC, CanadaHQ recorded Nov 6, 202651-20050 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchColchester, NB, CanadaHQ recorded Nov 6, 2026201-50050 contacts →

Exact match

“Founded in 1953, has been operating in and expanding geographical and highly specialized markets for the past six decades.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchToronto, ON, CanadaHQ recorded Nov 6, 202651-20048 contacts →

Exact match

“DGI Geoscience is focused on providing excellence in our services and securing our position as an industry leader while delivering a fun and rewarding work atmosphere.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 202611-5045 contacts →

Exact match

“Canadian Discovery Ltd.(CDL) is a global leader in subsurface intelligence, headquartered in Calgary, Alberta.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 202651-20045 contacts →

Exact match

“ORLEN Upstream Canada is a part of ORLEN Group, one of the largest energy corporations in Europe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchToronto, ON, CanadaHQ recorded Nov 6, 202651-20043 contacts →

Exact match

“CGX is a publicly traded (TSX-V|OYL) Canadian oil and gas exploration company that holds an interest in the Corentyne block in the Guyana Basin; a proven petroleum basin with over…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 202611-5035 contacts →

Exact match

“Echo Seismic Ltd provides a comprehensive range of geophysical exploration services to a growing client base across the oil, gas, coal, mineral, water and major civil engineering…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“Cabra is a Calgary-based geological consulting firm, focusing on technology driven results.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 202651-20034 contacts →

Exact match

“Mediterra Energy Corporation ("Mediterra") is a Canadian based international upstream Oil and Gas Company focused on exploration and development opportunities in Africa and the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 200 upstream exploration companies based in Canada

See the full list, filter by size, metro and specialty, and access 1,806 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Upstream exploration companies based in Canada at a glance

As of Nov 6, 2026
33.4%Verified-email coverage
27.0Average contacts per company
1-10Median size (employees)
60.0%Largest-city concentration · Calgary
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
99
11-50
63
51-200
29
201-500
5
501-1,000
2

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 200 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 Canada whose business descriptions match “upstream exploration companies” 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 1,806 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.

Upstream exploration companies by metro

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 “upstream exploration companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many upstream exploration companies are there based in Canada?

RevenueBase identified 200 company matches for upstream exploration companies associated with 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?

Gran Tierra Energy tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most upstream exploration companies?

Calgary leads with 120 company records, followed by Vancouver (13) and Toronto (11).

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 1,806 professional contacts with verified work emails tracked across these 200 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.