These Calgary-based companies conduct in-house research and development. The list is dominated by large firms in the oil and gas sector, alongside a few in software and manufacturing. Notable companies include Cenovus Energy, an integrated energy company, and Imperial Oil, specializing in petroleum refining and crude oil production. Enerflex Ltd. provides energy infrastructure solutions, while NOVA Chemicals designs polyethylene resins. Blackline Safety offers wearable safety technology, and PBS Systems provides dealership management systems for automotive dealers.
The data shows a strong concentration of companies founded between the late 1970s and early 2000s, indicating a period of significant industrial growth in the region. Most of these companies, regardless of their founding year, have grown to become major employers.
| # | 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 |
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 | |||
| 5 |
NOVA Chemicalsnovachem.com
Designing and producing high-quality polyethylene resins, investing in recycling infrastructure, and promoting circular economy through innovation and partnerships. |
2,342 | |||
| 6 |
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 | |||
| 7 |
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 | |||
| 8 | 733 | ||||
| 9 |
Blackline Safetyblacklinesafety.com
This company provides wearable safety technology and gas monitoring paired with cloud-connected software to ensure worker safety and productivity worldwide |
561 | |||
| 10 |
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 | |||
| 11 | 521 | ||||
| 12 |
PBS Systemspbssystems.com
Premier provider of innovative and comprehensive dealership management systems for automotive dealers in North America, with a focus on customer collaboration and industry advancement |
512 | |||
| 13 |
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 | |||
| 14 |
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 | |||
| 15 |
NovAtelnovatel.com
Develops global technology solutions for assured autonomy and precise positioning on land, sea, and air, critical for various industries. |
380 | |||
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 |
Sanjel Energy Servicessanjel.com
Providing innovative, customized well cementing solutions and products focused on long-term well integrity and productivity improvement. |
358 | |||
| 17 |
The Brenda Strafford Foundationthebsf.ca
Provider of comprehensive care and social impact services for seniors, domestic violence victims, and communities through healthcare, research, and innovation initiatives |
349 | |||
| 18 |
Micro Engineering Tech Incmicroengineering.ca
A leading Geomatics and Engineering company offering consulting and product services for Oil & Gas, Construction, and digital infrastructure sectors |
346 | |||
| 19 |
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 | |||
| 20 |
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 | |||
| 21 |
Computer Modelling Groupcmgl.ca
A global company specializing in simulation technology to address complex subsurface and surface challenges for the new energy industry worldwide |
323 | |||
| 22 |
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 | |||
| 23 | 245 | ||||
| 24 |
Beyond Energy Services and Technology Corp.beyondmpd.com
Specializing in Managed Pressure Drilling services, our experienced team and advanced equipment ensure exceptional performance, reliability, and safety for clients |
220 | |||
| 25 |
Pacesetter Directional Drillingpacesetterdirectional.com
Leader in providing cutting-edge directional drilling solutions, equipment, and expertise to achieve ambitious drilling goals, lower costs, and optimize performance globally |
202 | |||
| 26 |
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 | |||
| 27 |
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 | |||
| 28 |
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 | |||
| 29 |
GasFrac Energy Servicesgasfrac.com
An innovative well-fracturing company offering a patented waterless Liquid Petroleum Gas gel process for higher reservoir production and addressing water conservation concerns |
46 | |||
| 30 |
Highwood Technologieshighwoodtechnologies.com
Design and manufacturing firm offering engineered solutions for various industries, specializing in custom fabrication and product development based on industry needs |
25 | |||
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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.
More company lists in Calgary
- The largest companies in Calgary 745
- Oil and Gas companies in Calgary 248
- Energy companies in Calgary 204
- 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
- Manufacturers in Calgary 50
- SaaS companies in Calgary 39
- Hardware manufacturers in Calgary 37
- Consulting firms in Calgary 36
- Distributors and wholesalers in Calgary 32
- Logistics companies in Calgary 32
- Financial services firms in Calgary 31
- Construction companies in Calgary 30
- Software Development companies in Calgary 30
The same list elsewhere in Canada
- Companies with in-house R&D in Canada 678
- Companies with in-house R&D in Ontario 300
- Companies with in-house R&D in the province of Quebec 159
- Companies with in-house R&D in British Columbia 76
- Companies with in-house R&D in Alberta 74
- Companies with in-house R&D in Toronto 93
- Companies with in-house R&D in Montreal 59
- Companies with in-house R&D in Vancouver 34