The environmental services sector in Alberta is characterized by a mix of public service organizations and private companies. Notable entities include the City of Calgary, which focuses on public services, and EPCOR, a provider of essential utilities. Golder offers specialized consulting in earth, environment, and energy, while SECURE provides environmental waste management and oilfield services. CEDA is a significant provider of industrial maintenance and environmental services, and AGAT Laboratories offers analytical solutions across various industries.
Most of the larger organizations are based in Calgary, with other significant presences in Edmonton, Sherwood Park, and Fort McMurray. A common theme among many of these companies is their involvement in the oil and gas industry, either directly or through providing support services, alongside a strong representation of government administration entities.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
City of Calgarycalgary.ca
A public service organization in Calgary with a focus on making life better for residents through collaborative efforts and innovative practices |
10,653 | |||
| 2 |
Mullen Group Ltd.
Provides logistics across North America including warehousing, truckload, and specialized hauling. Also offers services for energy, mining, forestry, and construction industries in western Canada. |
5,001 | |||
| 3 | 3,311 | ||||
| 4 | 2,738 | ||||
| 5 | 1,521 | ||||
| 6 |
Strathcona Countystrathcona.ca
Striving for excellence in delivering quality of life and essential services to residents, promoting continuous learning and growth for employees |
1,419 | |||
| 7 | 1,043 | ||||
| 8 |
AGAT Laboratoriesagatlabs.com
Specialized Canadian provider of analytical solutions globally, offering accurate and timely services in various industries including environmental, mining, petroleum, and food testing |
1,034 | |||
| 9 |
Regional Municipality of Wood Buffalormwb.ca
The Regional Municipality of Wood Buffalo celebrates cultural diversity and Indigenous history in a vast region full of opportunity for all |
813 | |||
| 10 |
City of Lethbridgelethbridge.ca
Municipal government managing city operations, cultural venues, sports facilities, education institutions, and serving as a commercial and industrial center. |
805 | |||
| 11 |
City of Red Deerreddeer.ca
City in central Alberta offering quality health and education facilities, along with beautiful parks, trails, and community amenities. |
787 | |||
| 12 |
City of Medicine Hatmedicinehat.ca
City offering residents and visitors a safe, healthy environment with vibrant arts, recreation, and a welcoming community spirit. |
735 | |||
| 13 |
City of St. Albertstalbert.ca
Providing diverse, exceptional services to residents and businesses, fostering growth, collaboration, and a vibrant, accessible community environment. |
643 | |||
| 14 |
Tervita Corporationsecure.ca
An environmental and energy services company dedicated to creating a sustainable future through waste management, environmental services, and prioritizing safety |
607 | |||
| 15 |
ClearStream Energy Services Inc.flintcorp.com
Leading provider of maintenance, fabrication, construction, environmental services, and more to energy and industrial markets such as oil & gas and mining |
590 | |||
| 16 |
Vertex Resource Group Ltd.vertex.ca
A leading provider of environmental services for various industries, offering expertise in site selection, consultation, regulatory approval, construction, operation, maintenance, and cleanup |
519 | |||
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| 17 |
City of Airdrieairdrie.ca
Local municipal government providing essential services to residents and businesses in a rapidly growing and vibrant community. |
508 | |||
| 18 |
City of Grande Prairiecityofgp.com
Providing programs, services, infrastructure, and facilities for a youthful, fast-growing community, fueled by regional opportunities and natural resources |
445 | |||
| 19 |
Morgan Construction and Environmental Ltd.mcel.ca
Civil construction and environmental projects company specializing in Oil & Gas, Mining, and Infrastructure projects in Western Canada, emphasizing safety, commitment, people, and quality |
419 | |||
| 20 |
Rocky View Countyrockyview.ca
Delivering quality municipal services and fostering a thriving business community in an environment with competitive tax rates and a high quality of life |
374 | |||
| 21 |
SITE Resource Groupsiterg.com
Integrated services contractor specializing in remote access, environmental and infrastructure construction in Western Canada, utilizing new technologies for successful, timely, and budget-friendly project completion |
336 | |||
| 22 |
Hatfieldhatfieldgroup.com
Provides environmental and social services for private and public sector clients globally, specializing in aquatic ecology, contaminant monitoring, and biodiversity assessments for sustainable solutions. |
305 | |||
| 23 | 273 | ||||
| 24 |
Electronic Recycling Associationera.ca
A non-profit organization addressing electronic waste and digital divide by reusing and redistributing unwanted computers to Canadian families and organizations |
240 | |||
| 25 |
Matrix Solutions Inc.onterris.com
A leading provider of environmental consulting and engineering services, delivering innovative solutions for infrastructure, energy, oil & gas, and mining sectors globally |
221 | |||
| 26 |
Town of Cochrane, Albertacochrane.ca
This organization is the municipal authority for a modern community in southern Alberta, committed to preserving its Western heritage and promoting public service |
217 | |||
| 27 |
Mullen Group Ltd.mullen-group.com
Network of independent businesses offering transportation, warehousing, logistics, specialized hauling, and environmental services for various industries in Canada. |
92 | |||
| 28 |
Ecofitt Corpecofitt.ca
A leading provider of clean energy solutions, specializing in distributing high-efficiency water and energy conservation products and developing complete conservation solutions |
43 | |||
| 29 |
Whitecourt Transport Incwhitecourttransport.com
Third generation family business specializing in dry bulk, LTL, TL freight, heavy equipment contracting, logistics, construction, and environmental services. |
31 | |||
| 30 |
Questor Technologyquestortech.com
A global leader in clean air technology, specializing in reducing pollution emissions, maximizing data, and increasing energy efficiency with eco-friendly solutions |
30 | |||
| 31 |
Catapult Environmentalcatapultenv.com
Transforming the energy industry with sustainable solutions, exceptional client service, and a focus on safety Specializing in midstream facilities and environmental challenges |
20 | |||
| 32 |
Motus Solutionsgomotus.ca
Innovative and sustainable solutions for the energy industry, including cement return bins, waste management, and oilfield transport and logistics services |
10 | |||
| 33 |
Karis Energy Serviceskarisenergy.com
A Canadian environmental management and energy services company providing innovative and sustainable solutions for projects worldwide, with a focus on client needs and regulatory compliance |
5 | |||
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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 12, 2026.
More company lists in Alberta
- The largest companies in Alberta 1,391
- Oil and Gas companies in Alberta 314
- Energy companies in Alberta 267
- Multinational companies in Alberta 240
- Critical infrastructure operators in Alberta 124
- Manufacturers in Alberta 113
- Retail chains in Alberta 101
- Construction companies in Alberta 83
- Professional services firms in Alberta 81
- Hardware manufacturers in Alberta 76
- Logistics companies in Alberta 76
- Companies with in-house R&D in Alberta 74
- Public sector organisations in Alberta 71
- Publicly traded companies in Alberta 68
- Education providers in Alberta 64
- Financial services firms in Alberta 57
- Truck Transportation companies in Alberta 55
- Consulting firms in Alberta 54
- SaaS companies in Alberta 54
- Distributors and wholesalers in Alberta 53
- Corporate groups and holding companies in Alberta 50
- IT Services and IT Consulting companies in Alberta 47
- Software Development companies in Alberta 45
- Healthcare providers in Alberta 41
The same list elsewhere in Canada
- Environmental services companies in Ontario 71
- Environmental services companies in the province of Quebec 36
- Environmental services companies in British Columbia 26