The manufacturing companies in Calgary are primarily established firms, with a strong presence in the oil and gas sector. Cenovus Energy, for example, is an integrated energy company with operations across North America and Asia Pacific. Imperial Oil, founded in 1880, specializes in petroleum refining and crude oil production. Enerflex Ltd. provides energy infrastructure and transition solutions, while Agrium focuses on sustainable food production.
A notable pattern among these companies is the significant representation of the oil and gas industry, alongside chemical manufacturing and construction. Companies like NOVA Chemicals produce polyethylene resins, and Lafarge Canada provides sustainable construction materials. This suggests a concentration of heavy industry and resource-based manufacturing in the region, with many companies having long operational histories.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
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 | |||
| 2 |
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 | |||
| 3 |
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 | |||
| 4 |
Agriumnutrien.com
A leading provider of crop inputs and services focused on sustainable food production, innovation, and long-term success for customers and stakeholders |
3,077 | |||
| 5 |
Exterranenerflex.com
Specializing in acquisition, Exterran offers innovative solutions Recently acquired by Enerflex Ltd, visit their website for the latest updates |
3,012 | |||
| 6 |
NOVA Chemicalsnovachem.com
Designing and producing high-quality polyethylene resins, investing in recycling infrastructure, and promoting circular economy through innovation and partnerships. |
2,342 | |||
| 7 |
De Havilland Aircraft of Canada Limiteddehavilland.com
Design and manufacture of versatile, dependable aircraft including the advanced Dash 8 turboprop, operating from a state-of-the-art Canadian facility. |
1,561 | |||
| 8 |
Lafarge Canadaamrize.com
A leading provider of sustainable construction materials with a focus on innovative solutions for building better cities and communities across Canada |
1,296 | |||
| 9 |
ATCO Structuresstructures.atco.com
A global leader in modular design, manufacturing, and construction, delivering innovative solutions for workforce housing, offices, schools, hospitals, and more |
1,068 | |||
| 10 |
BURNCO Rock Products Ltdburnco.com
A 110-year-old family-owned construction materials company with 80 locations producing aggregates, paving asphalt, and ready-mix concrete, prioritizing safety, teamwork, and clarity |
608 | |||
| 11 | 559 | ||||
| 12 |
Engineered Airengineeredair.com
Manufacturer of HVAC, refrigeration, and heat transfer products for various industries in North America, with a focus on custom design and project-specific solutions |
551 | |||
| 13 | 521 | ||||
| 14 |
CoolIT Systemscoolitsystems.com
Specializing in scalable liquid cooling solutions for servers and data centers, they enable increased rack densities, component performance, and power efficiencies |
510 | |||
| 15 |
Hexagon Autonomous Solutionshexagon.com
Global leader in digital reality solutions, combining sensor, software, and autonomous technologies to boost efficiency, productivity, quality, and safety across various industries |
405 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
NovAtelnovatel.com
Develops global technology solutions for assured autonomy and precise positioning on land, sea, and air, critical for various industries. |
380 | |||
| 17 |
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 | |||
| 18 |
Packers Plus Energy Services Inc.packersplus.com
Industry leader in designing and manufacturing lower completions solutions for challenging applications, with a focus on innovation, quality, and global presence |
335 | |||
| 19 |
Bidell Gas Compressionbidell.com
Leading supplier and service provider of natural gas compressors, offering engineering, design, parts, service, and innovative trailer-mounted compressor solutions to exceed industry standards |
324 | |||
| 20 |
Falkbuilt Ltd.falkbuilt.com
Revolutionizing interior construction with digitized components, efficient manufacturing, clean installation, minimal waste, endless design options, infection control, and superior acoustics |
315 | |||
| 21 |
Surepointsurepoint.ca
A premier energy services provider specializing in compression, power generation, electrical and instrumentation, automation, EV charging solutions, and modular solutions |
280 | |||
| 22 | 245 | ||||
| 23 |
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 | |||
| 24 |
Scott Springfield by Modinescottspringfield.com
Leading manufacturer of custom air handlers since 1978, specializing in energy efficient solutions for various industries with a focus on quality and customer satisfaction |
186 | |||
| 25 |
Plasti-Fab Ltd.plastifab.com
Manufacture and supply of innovative Expanded Polystyrene products for energy-efficient construction, civil infrastructure, and sustainable building solutions. |
181 | |||
| 26 |
Global Power Technologiesglobalte.com
The company specializes in providing ultra-reliable industrial power and clean air systems for off-grid sites, balancing reliability, affordability, and sustainability |
116 | |||
| 27 |
SIMOsimocorp.com
Specializing in professional grade furniture for commercial use, Simo designs and manufactures casegoods and collaborative spaces for various work environments |
114 | |||
| 28 |
August Electronics Inc.aeicm.com
A Canadian-owned EMS provider with 30 years of experience, offering quality electronic manufacturing services, NPI, DFM, DFT, SMT, PCB assembly, and equipment refurbishment |
106 | |||
| 29 |
IMS Innovative Manufacturing Source Inc.imsmfg.ca
Leading provider of Electronic Manufacturing Services, offering Metal Fabrication, Vertical Integration, and Full Box Build Assemblies with a focus on innovation, quality, and customer success |
44 | |||
| 30 |
Phil & Sebastian Coffee Roastersphilsebastian.com
Sourcing and roasting high-quality coffee directly from farmers worldwide, operating award-winning cafes, and partnering with wholesalers across Canada and the United States. |
38 | |||
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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 Nov 11, 2026.
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- Multinational companies in Calgary 130
- Critical infrastructure operators in Calgary 83
- Professional services firms in Calgary 55
- Publicly traded companies in Calgary 53
- Retail chains in Calgary 52
- Companies with in-house R&D in Calgary 39
- SaaS companies in Calgary 39
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The same list elsewhere in Canada
- Manufacturers in Canada 946
- Manufacturers in Ontario 389
- Manufacturers in the province of Quebec 238
- Manufacturers in Alberta 113
- Manufacturers in British Columbia 104
- Manufacturers in Manitoba 34
- Manufacturers in Toronto 88
- Manufacturers in Montreal 53
- Manufacturers in Mississauga 42
- Manufacturers in Edmonton 32
- Manufacturers in Vancouver 28