Company lists · Data refreshed November 2026

Top 25 Oil and gas reservoir engineers based in Canada

RevenueBase identified 104 company matches for oil and gas reservoir engineers associated with Canada as of November 2026 and tracks 731 professional contacts across them, including 224 with verified work emails. Calgary is the largest hub.

This list covers company matches for oil and gas reservoir engineers 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 4, 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 4, 2026 How this list was built
104Companies
731Contacts tracked
224Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest oil and gas reservoir engineers based in Canada

Ranked by team size
Top 25 of 104 company matches for oil and gas reservoir engineers based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 4, 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 4, 202651-20081 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
2Exact matchCalgary, AB, CanadaHQ recorded Nov 4, 202651-20075 contacts →

Exact match

“McDaniel is focused on unravelling the complexities of the Energy business.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
3Exact matchCalgary, AB, CanadaHQ recorded Nov 4, 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 4, 2026 · View company records in RevenueBase
4Exact matchCalgary, AB, CanadaHQ recorded Nov 4, 202651-20033 contacts →

Exact match

“BGES (Big Guns Energy Services Inc.) is a leading provider of specialized in-situ reservoir testing and subsurface containment evaluation.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
5Exact matchEdmonton, AB, CanadaHQ recorded Nov 4, 202611-5030 contacts →

Exact match

“At Interface Fluidics we provide critical fluid property data to energy companies globally to enable them to improve short-term financial performance, extract more value from…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
6Exact matchCalgary, AB, CanadaHQ recorded Nov 4, 202651-20025 contacts →

Exact match

“Arcis Seismic Solutions (Arcis) is a wholly owned subsidiary of TGS-NOPEC Geophysical Company.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
7Exact matchCalgary, AB, CanadaHQ recorded Nov 4, 202611-5023 contacts →

Exact match

“McLeay Geological Consultants (2006) Ltd.(“McLeay”) is an oil and gas service company providing the industry with high quality wellsite and remote geosteering personnel for…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
8Exact matchCalgary, AB, CanadaHQ recorded Nov 4, 20261-1022 contacts →

Exact match

“Your Complete PLANNING, EVALUATION and EXECUTION Partners.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
9Exact matchCalgary, AB, CanadaHQ recorded Nov 4, 202611-5016 contacts →

Exact match

“Subsurface Dynamics is a reservoir engineering and technology firm specializing in real-time frac monitoring, automated analysis, and integrated modeling solutions that drive…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
10Exact matchCalgary, AB, CanadaHQ recorded Nov 4, 202611-5015 contacts →

Exact match

“FrontierPS draws on a 40 year history of providing petroleum engineering excellence.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
11Exact matchCalgary, AB, CanadaHQ recorded Nov 4, 20261-1013 contacts →

Exact match

“Drilling & Completions Consulting Engineering and Field Supervision”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
12Exact matchCalgary, AB, CanadaHQ recorded Nov 4, 20261-1012 contacts →

Exact match

“United incorporates geological, engineering and geophysical data in a work flow process for optimizing reservoir development plans.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
13Exact matchCalgary, AB, CanadaHQ recorded Nov 4, 20261-1011 contacts →

Exact match

“GEOSEIS is a company with a passion for energy.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
14Exact matchCalgary, AB, CanadaHQ recorded Nov 4, 202611-509 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
15Exact matchCalgary, AB, CanadaHQ recorded Nov 4, 20261-108 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
16Exact matchCalgary, AB, CanadaHQ recorded Nov 4, 20261-107 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
17Exact matchCalgary, AB, CanadaHQ recorded Nov 4, 202611-505 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
18Exact matchCalgary, AB, CanadaHQ recorded Nov 4, 20261-105 contacts →

Exact match

“FRACMOD was founded by Gurpreet Sawhney after working in both the technical and production side of the oil & gas industry for over 25 years.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
19Exact matchCalgary, AB, CanadaHQ recorded Nov 4, 20261-105 contacts →

Exact match

“At Spectrum Geosciences, we offer specialized reservoir quality assessment for Canada’s resource industries.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
20Exact matchCalgary, AB, CanadaHQ recorded Nov 4, 20261-104 contacts →

Exact match

“Geology and Geomechanics with Intention and Skill Enlighten Geoscience provides a unique style of geoscience consulting and analysis to clients in Calgary and around the world.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
21Exact matchCalgary, AB, CanadaHQ recorded Nov 4, 20261-104 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
22Exact matchCalgary, AB, CanadaHQ recorded Nov 4, 20261-103 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
23Exact matchCalgary, AB, CanadaHQ recorded Nov 4, 20261-103 contacts →

Exact match

“What We Do Subsurface Technical Evaluation Provide integrated subsurface studies and evaluations, including source rock evaluation, reservoir characterization, prospect mapping…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
24Exact matchCalgary, AB, CanadaHQ recorded Nov 4, 20261-102 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
25Exact matchWeyburn, SK, CanadaHQ recorded Nov 4, 20261-102 contacts →

Exact match

“TRON Engineering does good work”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase

Showing 25 of 104 oil and gas reservoir engineers based in Canada

See the full list, filter by size, metro and specialty, and access 224 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Oil and gas reservoir engineers based in Canada at a glance

As of Nov 4, 2026
30.6%Verified-email coverage
7.0Average contacts per company
1-10Median size (employees)
79.8%Largest-city concentration · Calgary
Nov 4, 2026Page data refreshed

Companies by employee count

1-10
73
11-50
20
51-200
7
1,001-5,000
1
10001+
1

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 104 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 “oil and gas reservoir engineers” 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 224 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 4, 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.

Oil and gas reservoir engineers 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 “oil and gas reservoir engineers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many oil and gas reservoir engineers are there based in Canada?

RevenueBase identified 104 company matches for oil and gas reservoir engineers 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?

Divestco Geoscience tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most oil and gas reservoir engineers?

Calgary leads with 83 company records, followed by Edmonton (4) and Regina (2).

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 224 professional contacts with verified work emails tracked across these 104 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 4, 2026.

Ready to reach these companies? Verified emails and direct dials for all 104 oil and gas reservoir engineers based in Canada. Start with a free account, no credit card.

Download this list →

Related lists

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.