| # | Company | Employees |
|---|---|---|
| 1 |
Brookfield Asset Managementbrookfield.com
Provides investment management services for businesses including real estate and utilities. Focused on asset management across various sectors. |
180,000 |
| 2 |
Suncorsuncor.com
Commercial oil sands development, upgrading, offshore oil and gas production, petroleum refining, and product marketing under Petro-Canada brand. |
14,758 |
| 3 |
Enbridgeenbridge.com
This company is a leading provider of energy infrastructure, delivering reliable and affordable energy sources while investing in modern infrastructure and resilient communities |
11,855 |
| 4 |
Canadian Natural Resources Limited (CNRL)cnrl.com
Global independent crude oil and natural gas producer with diverse operations in North America, North Sea, and Offshore Africa. |
9,936 |
| 5 |
TC Energytcenergy.com
The company is focused on assisting the world in transitioning to cleaner energy while meeting global demand through innovative solutions |
8,243 |
| 6 | 7,064 | |
| 7 |
Cenovus Energycenovus.com
An integrated energy company, operations include oil sands, crude oil, natural gas projects, and downstream upgrading, refining, and marketing across North America, Asia Pacific. |
6,363 |
| 8 |
Imperial Oilimperialoil.ca
A Canadian energy company leading in technology and innovation, specializing in petroleum refining, crude oil production, natural gas, petrochemicals, and fuel marketing |
4,372 |
| 9 |
Enerflex Ltd.enerflex.com
Global provider of energy infrastructure and transition solutions, specializing in natural gas, low-carbon, and water treatment solutions for a sustainable future |
3,578 |
| 10 |
Ensign Energy Servicesensignenergy.com
A global leader in oilfield services, specializing in land-based drilling and well servicing with a focus on safety, innovation, and exceptional customer experience |
3,047 |
| 11 |
Husky Energycenovus.com
A company, part of the Cenovus group, focuses on providing services in the oil and gas industry Visit Cenovuscom for more information |
3,046 |
| 12 |
Exterranenerflex.com
Specializing in acquisition, Exterran offers innovative solutions Recently acquired by Enerflex Ltd, visit their website for the latest updates |
3,012 |
| 13 |
AltaGas Ltd.altagas.ca
A leading North American infrastructure company connecting customers to affordable and reliable energy solutions with a strong portfolio in growing markets |
2,838 |
| 14 |
Precision Drillingprecisiondrilling.com
A leading provider of safe and high-performance services to the oil and gas industry, offering drilling rigs, technology solutions, environmental stewardship, and support services |
2,802 |
| 15 | 2,738 | |
| 16 |
Pembina Pipeline Corporationpembina.com
A dynamic energy transportation and midstream provider in Western Canada, with pipelines, gas facilities, and oil infrastructure prioritizing community engagement and employee well-being |
2,464 |
| 17 |
Encana Corporationovintiv.com
A leading North American energy producer focused on growing diverse resource plays, producing natural gas, oil, and natural gas liquids |
2,249 |
| 18 |
Calfrac Well Serviceslinktr.ee
Leading provider of specialized oilfield services, including hydraulic fracturing, coiled tubing, and cementing techniques to increase oil and gas production Operating in North America and Argentina |
1,629 |
| 19 |
Parkland Corporationparkland.ca
Global fuel retailer operating thousands of service stations, convenience stores, and renewable energy solutions across North America and the Caribbean. |
1,619 |
| 20 | 1,613 | |
| 21 |
TransAltatransalta.com
A diverse fleet of electrical generation assets in Canada, the US, and Australia, specializing in clean electricity and sustainable practices |
1,558 |
| 22 | 1,521 | |
| 23 |
Keyerakeyera.com
An energy company focused on responsible growth, innovation, and integrity, connecting Canadian energy products to national and global markets |
1,488 |
| 24 |
FLINT Corp.flintcorp.com
A leading provider of maintenance, wear technologies, fabrication, facility construction, pipeline installation, heavy equipment operations, and environmental services for various industries |
1,440 |
| 25 |
Enbridge Pipelinesenbridge.com
A North American energy leader specializing in transportation, distribution, and clean energy generation including crude oil, natural gas, and renewables |
1,354 |
| 26 |
Trican Well Service Ltd.tricanwellservice.com
A leading provider of pressure pumping and oilfield services with expertise in fracturing, cementing, reservoir characterization, and production enhancement |
1,302 |
| 27 |
ATCO Electricelectric.atco.com
The company provides safe and reliable electricity transmission and distribution services, operates in 245 communities in Alberta, and offers diversified global business solutions |
1,290 |
| 28 |
Valard Constructionvalard.com
A leading Canadian utility contractor offering full-service capabilities in transmission, distribution, substations, foundations, telecommunications, and renewable energy since 1978 |
1,236 |
| 29 | 1,196 | |
| 30 |
North American Construction Groupnacg.ca
A provider of mining and heavy construction services in the Canadian oil sands, with over 60 years of experience and a large equipment fleet |
1,113 |
| 31 |
Inter Pipelineinterpipeline.com
A growing energy infrastructure business in Alberta, offering employees stability, career growth, innovative opportunities, and competitive benefits |
1,081 |
| 32 | 1,059 | |
| 33 | 1,043 | |
| 34 |
FortisAlbertafortisalberta.com
Delivering safe and reliable electricity to residential, farm, and business customers in Alberta through a vast distribution network Energizing communities with dedicated professionals |
1,015 |
| 35 |
United Safetyunitedsafety.net
A safety solutions provider with 30 years experience offering safety equipment, personnel, and services for the Oil and Gas industry globally |
934 |
| 36 |
Capital Powercapitalpower.com
A growth-oriented power producer committed to achieving net zero emissions by 2045, supplying reliable, affordable, and decarbonized power across North America |
933 |
| 37 |
Phoenix Technology Servicesphxtech.com
Specializing in directional drilling solutions for unconventional drilling markets worldwide, focused on reducing costs, minimizing risks, and maximizing operational efficiencies |
906 |
| 38 |
ARC Resources Ltd.arcresources.com
A leading energy producer in the Montney region with low-cost operations, strong ESG performance, dividend payouts, and a focus on delivering long-term returns |
878 |
| 39 |
Propak Systems Ltd.propaksystems.com
Specializing in energy processing solutions since 1976, our focus is on quality craftsmanship, on-time delivery, modular design, engineering, and fabrication for oil and gas production |
854 |
| 40 |
Trans Mountaintransmountain.com
Operates Canada's sole pipeline system for transporting crude oil and refined products to the West Coast, delivering daily through multiple provinces |
848 |
| 41 |
Whitecap Resources Inc.wcap.ca
A Canadian energy company focused on sustainable growth, CO2 sequestration, and community involvement through a disciplined risk management strategy |
844 |
| 42 |
STEP Energy Servicesstepenergyservices.com
An energy services provider based in Calgary, specializing in coiled tubing, hydraulic fracturing, and wireline solutions for oil and gas producers in North America |
839 |
| 43 |
Gran Tierra Energygrantierra.com
Oil and gas exploration and production company focused on Colombia and Ecuador, creating value through global experience in a transparent and responsible manner |
820 |
| 44 |
Vermilion Energyvermilionenergy.com
A responsible oil and gas producer with operations in North America, Europe, and Australia, offering diverse opportunities and rewards to talented individuals |
774 |
| 45 |
Java Holdings Ltdjavaholdings.ca
A family-owned investments and management business with operational units in construction, electrical services, energy, aviation, hydroelectric, and project management |
765 |
| 46 |
Tourmaline Oil Corptourmalineoil.com
A leading Canadian natural gas producer with significant positions in major resource plays, supplying natural gas to Canada, the US, and international markets |
752 |
| 47 |
Plains Midstream Canadaplains.com
A subsidiary of Plains All American Pipeline, Plains Midstream Canada provides transportation, storage, and marketing solutions for crude oil and LPG in Canada and the US |
743 |
| 48 | 733 | |
| 49 |
Gibson Energygibsonenergy.com
A company headquartered in Calgary, Alberta, focusing on storage, processing, and marketing of crude oil and refined products with a strong focus on safety and environmental values |
710 |
| 50 |
Alberta Electric System Operator (AESO)aeso.ca
A not-for-profit organization managing and operating the provincial power grid, ensuring reliable electricity supply for four million Albertans through market management and infrastructure planning |
702 |
| 51 |
AltaLinkaltalink.ca
This organization powers Alberta by delivering electricity to millions of residents and businesses, supporting sustainable energy practices and maintaining a reliable transmission system |
689 |
| 52 |
Stream-Flo Industriesstreamflo.com
A privately-owned company in the energy industry, manufacturing a variety of valves and offering services for maintenance, installation, and rentals globally |
671 |
| 53 |
Parex Resourcesparexresources.com
An international oil and gas exploration and development organization focused on Colombia, with significant growth in reserves, production, and land holdings |
617 |
| 54 |
Trinidad Drillingtrinidaddrilling.com
Industry-leading contract drilling company providing safe, reliable, technologically advanced equipment and experienced personnel for drilling services in the US, Canada, Middle East, and Mexico |
613 |
| 55 |
Tervita Corporationsecure.ca
An environmental and energy services company dedicated to creating a sustainable future through waste management, environmental services, and prioritizing safety |
607 |
| 56 |
Strathcona Resources Ltd.strathconaresources.com
A rapidly-growing oil and gas producer in North America with assets in Western Canada, specializing in thermal oil, enhanced oil recovery, and Montney condensate |
578 |
| 57 |
Savanna Energysavannaenergy.com
Contract drilling and well servicing to clients in Canada, the US, and Australia. Career opportunities with training, development, and advancement. |
568 |
| 58 |
Paramount Resourcesparamountres.com
An independent Canadian energy company exploring, developing, producing, and marketing natural gas, crude oil, and natural gas liquids in multiple provinces |
444 |
| 59 |
Canacol Energy Ltdcanacolenergy.com
A leading independent natural gas exploration and production company in Colombia, supplying clean, cost-effective energy to support the country's energy transition goals |
442 |
| 60 |
MEG Energy Corp.megenergy.com
A Canadian oil sands business focused on sustainable thermal oil production, utilizing innovative technologies to maximize production while minimizing environmental impact |
441 |
| 61 |
PETRONAS Canadapetronascanada.com
A major natural gas resource owner in Canada, focusing on sustainable production, strong stakeholder relationships, and community partnerships for cleaner energy |
432 |
| 62 |
Baytex Energy Corp.baytexenergy.com
An energy corporation engaged in acquiring, developing, and producing crude oil and natural gas in Western Canada and the Eagle Ford region |
400 |
| 63 |
Rising Edge Grouprisingedgegroup.com
High voltage electrical contractor offering safe, cost-effective project solutions for power generation, transmission, fabrication, and industrial industries Specializing in fit-for-purpose solutions |
355 |
| 64 |
Foremostforemost.ca
A leading Western Canadian manufacturer providing energy equipment such as tanks and compression units, as well as off-road vehicles for diverse industries globally |
341 |
| 65 |
Enerpluschordenergy.com
Independent North American exploration and production company prioritizing asset development with a focus on safety, environmental responsibility, and community engagement |
327 |
| 66 |
Thermo Design Engineering Ltdthermodesign.com
A global leader in designing, engineering, and constructing energy projects worldwide, focused on sustainable solutions using innovative technology for clients |
319 |
| 67 |
McCoy Globalmccoyglobal.com
The company provides drilling and completion equipment, engineering support, and service to customers worldwide with a focus on reliability and high performance |
285 |
| 68 |
Surepointsurepoint.ca
A premier energy services provider specializing in compression, power generation, electrical and instrumentation, automation, EV charging solutions, and modular solutions |
280 |
| 69 |
Crescent Point Energywcap.ca
Leading North American oil producer focused on developing high-return resource plays in central Alberta and southwest and southeast Saskatchewan, with a commitment to community investment |
260 |
| 70 |
Argusargusinnovates.com
Industry leader in energy and industrial machining, offering high-quality products like Pigging Valves and Cementing Equipment, as well as premium threading and engineering services |
247 |
| 71 |
Sinopec Canadasinopeccanada.com
A diversified unconventional oil and natural gas company focused on developing assets in Alberta and British Columbia, with a stake in the Syncrude Oilsands Joint Venture |
246 |
| 72 | 245 | |
| 73 |
Tidewater Midstream and Infrastructuretidewatermidstream.com
A company in Western Canada specializing in natural gas processing, fractionation, liquids upgrading, storage, transportation, and marketing |
242 |
| 74 |
Banister Pipeline Limited Partershipbanister.ca
Specializing in oil and energy services, this Alberta-based business operates out of Edmonton, Canada |
229 |
| 75 |
Columbia Pipeline Group - now part of TC Energytcenergy.com
A energy transportation and distribution entity with operations across multiple states after acquisition Visit our LinkedIn page for updates |
214 |
| 76 |
Wolf Midstreamwolfmidstream.com
Calgary-based energy infrastructure provider with focus on Western Canada, backed by CPPIB Expert in midstream solutions, customer-focused with long-term investments and regulatory compliance |
212 |
| 77 |
Phoenix Energy Services Inc.phoenixenergy.ca
Phoenix Energy Services specializes in Electrical & Instrumentation, Major Projects, Automation, Engineering, Compression, and Safety services for the Energy industry in Western Canada |
204 |
| 78 |
Steelhaus Technologies Incsteelhaus.com
Innovative energy solutions provider with adaptable engineering, integrated manufacturing, and unwavering customer service, driven by a culture of continuous improvement and collaboration |
193 |
| 79 |
Obsidian Energy Ltd.obsidianenergy.com
An intermediate-sized oil and gas producer with a balanced portfolio of high-quality assets, committed to delivering results and succeeding in the industry |
189 |
| 80 |
Teine Energyteine-energy.com
Innovative energy provider focused on delivering lower emission, sustainable energy solutions while meeting increasing global energy needs Proudly employing Canadian energy professionals |
185 |
| 81 |
Valeura Energy Inc.valeuraenergy.com
An upstream oil & gas company based in Canada, focusing on international mergers, acquisitions, and asset development in Southeast Asia and Turkey |
182 |
| 82 |
Cougar Drilling Solutionstq.com
Provider of specialized drilling solutions worldwide, including directional services, rental tools, and direct sales of drilling equipment and products with a data-driven approach |
182 |
| 83 |
PetroChina Canadapetrochinacanada.com
An integrated energy firm focused on producing and delivering energy responsibly, with interests in upstream, midstream, and downstream operations in Alberta and British Columbia, Canada |
174 |
| 84 |
GN CORPORATIONS INC.gncorporations.com
An advanced manufacturing company in Alberta, Canada, offering high precision products and services for Oil & Gas, Automotive, Aerospace, and Defense industries globally |
163 |
| 85 |
Cardinal Energy Ltd.cardinalenergy.ca
Canadian oil company focused on sustainable yield and growth Prioritizing disciplined financial and operational growth while providing shareholders with sustainable dividends |
162 |
| 86 |
Tamarack Valley Energy Ltd (TVE)tamarackvalley.ca
An oil and energy business located in Calgary, Alberta, Canada, focusing on operations in the oil sector |
157 |
| 87 |
Canadian Energycdnrg.com
A Canadian-owned company providing top energy solutions, distribution of batteries, power management, renewable energy products, and custom solar solutions nationwide |
150 |
| 88 |
Roska DBO Inc.roskadbo.com
A trusted service provider to the energy industry in the Peace Region and far north, offering turn-key solutions with specialized equipment and operational expertise |
149 |
| 89 |
Connacher Oil and Gas Limitedconnacheroil.com
An oil sands exploration and production entity focusing on sustainable projects with full working interests and financial discipline in Alberta |
147 |
| 90 |
Tier 1 Energy Solutions Inc.tier1energy.ca
An oilfield service company based in Edmonton, Alberta, providing technical solutions for drilling and completions decisions in the Western Canada oil and gas market |
145 |
| 91 |
No longermustangwellservices.com
A privately owned energy service company operating in Western Canada, focusing on safety, environmental protection, customer support, and employee empowerment |
145 |
| 92 |
ATCO Power Canada Ltdatcopower.com
A global corporation with expertise in independent power generation, offering custom and cost-effective solutions in electricity, pipelines, structures, and retail energy |
134 |
| 93 |
Spartan Delta Corp.spartandeltacorp.com
Sustainability-focused oil and gas company with high-quality production and development opportunities in the Deep Basin, prioritizing ESG practices and shareholder value |
115 |
| 94 |
Bonavista Energy Corporationbonavistaenergy.com
A Canadian oil and natural gas producer, focused on long-term value through production growth and dividend income, driven by efficiency and environmental responsibility |
114 |
| 95 |
ALCO Energy Solutions LPalcoenergysolutions.com
A Canadian company with over 50 years of experience in engineering, fabricating, and commissioning energy solutions for natural gas processing globally |
112 |
| 96 |
Oil States Energy Services (Canada) Inc.osescanada.com
Specializing in wellhead isolation and fracturing tools, providing a range of equipment and services to the global oil and gas industry |
111 |
| 97 |
Pacific Canbriam Energypacific-canbriam.ca
The company works on generating positive energy and fostering collaboration to achieve common goals |
106 |
| 98 |
Rockpoint Gas Storagerockpointgs.com
The company is a leading independent owner and operator of natural gas storage assets in North America, providing gas management services in Canada |
106 |
| 99 |
CES Energy Solutions Corp.cesenergysolutions.com
A leading industry player that trades on TSX and OTCQX, focusing on organic growth and strategic acquisitions to meet customer needs |
103 |
| 100 |
NuVista Energy Ltd.nvaenergy.com
A leading oil and natural gas company in Western Canada, focused on exploration, development, and production in the Montney formation with a strong emphasis on safety and ESG performance |
101 |
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 24, 2026.
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