This selection of large environmental services companies in North America includes major players in waste management, engineering, and consulting. Firms like WM and Republic Services specialize in comprehensive waste and recycling solutions. WSP and Jacobs offer extensive engineering and advisory services across various sectors, including environment and infrastructure. Ecolab focuses on water, hygiene, and infection prevention solutions, while Clean Harbors provides hazardous waste management and emergency spill response.
The companies listed are primarily large corporations with diverse operations. A notable pattern is the concentration of headquarters in the United States, with a significant presence in Texas (Dallas, Houston) and Massachusetts (Boston, Norwell), alongside Montreal in Canada. This geographic spread reflects key economic hubs across North America.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 71,968 | ||||
| 2 |
Jacobsjacobs.com
Delivering outcomes and solutions for complex challenges in advanced manufacturing, cities, energy, environment, life sciences, transportation, and water, from advisory to lifecycle management. |
68,461 | |||
| 3 |
Amentumamentum.com
Amentum is a global leader in engineering, project management, and solutions integration, specializing in modernizing critical missions worldwide with speed and confidence |
50,000 | |||
| 4 |
Ecolabecolab.com
A global leader providing water, hygiene, and infection prevention solutions for various industries worldwide through comprehensive services and personalized insights |
48,879 | |||
| 5 | 28,255 | ||||
| 6 |
Tetra Techtetratech.com
A global provider of consulting and engineering services, specializing in innovative technical solutions for water, environment, infrastructure, energy, and international development projects |
27,460 | |||
| 7 |
International Paperinternationalpaper.com
Global company providing sustainable packaging solutions with operations in over 30 countries, employing 65,000 team members worldwide. |
25,464 | |||
| 8 |
Iron Mountainironmountain.com
Global leader in storage and information management services, partnering with organizations worldwide to protect and unlock the value of their assets and data |
24,357 | |||
| 9 |
Goodwill Industries Internationalgoodwill.org
nonprofit organization providing education, training, and career services to disadvantaged individuals and people with disabilities for empowerment. |
24,004 | |||
| 10 |
Republic Servicesrepublicservices.com
An industry leader in environmental services, providing innovative solutions for waste management, recycling, and sustainability to create cleaner and more sustainable communities |
21,081 | |||
| 11 |
GRUNDFOSgrundfos.to
The company specializes in energy-efficient pumps that provide comfort, deliver water, remove wastewater, and support agriculture while striving for environmental protection |
20,000 | |||
| 12 | 19,290 | ||||
| 13 |
Arca Continentalarcacontal.com
Produces, distributes, sells Coca-Cola beverages, and snacks in Mexico, Ecuador, Peru, Argentina, and the U.S. Company shares trade on the Mexican Stock Exchange. |
16,046 | |||
| 14 |
U.S. Environmental Protection Agency- Pacific Southwestepa.gov
It protects human health and the environment by ensuring clean air, land, and water while enforcing federal environmental laws effectively. |
16,000 | |||
| 15 |
Clean Harborscleanharbors.com
Provider of hazardous waste management, emergency spill response, industrial cleaning, recycling, and used oil re-refining services across North America. |
13,449 | |||
| 16 |
Nalco Water, An Ecolab Companyecolab.com
A global leader in water and process management solutions, leveraging connected chemistry and digital innovation to optimize sustainability and business outcomes |
12,751 | |||
| 17 |
SNC-Lavalinatkinsrealis.com
Global engineering services and nuclear organization connecting people, data, and technology to transform infrastructure and energy systems worldwide. |
11,913 | |||
| 18 |
Black & Veatchbv.com
An employee-owned global leader in building critical human infrastructure in Energy, Water, Telecommunications, and Government Services since 1915 |
11,691 | |||
| 19 |
City of Seattleseattle.gov
Providing diverse public services across multiple departments to support community well-being, infrastructure, and inclusive city development. |
10,924 | |||
| 20 |
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 | |||
| 21 |
Environment Agencygov.uk
Protect environment across England by managing flood risks, supporting climate adaptation, conserving biodiversity, regulating pollution, and issuing environmental permits. |
10,381 | |||
| 22 | 9,653 | ||||
| 23 |
Metrooregonmetro.gov
Metro is a regional organization in Portland dedicated to parks, land, transportation, recycling, arts, and events, with a focus on diversity and inclusivity |
9,159 | |||
| 24 |
Nucor Corporationnucor.com
Manufacture steel products across North America, operate numerous steel mills, and lead in ferrous scrap recycling for sustainable steel production. |
9,036 | |||
| 25 |
City of Austinaustintexas.gov
Local government managing city employees, providing public services, promoting transparency, innovation, and maintaining high quality of life standards. |
8,954 | |||
| 26 |
CDM Smithcdmsmith.com
This company provides comprehensive solutions in water, environment, transportation, energy, and facilities to worldwide public and private clients |
8,617 | |||
| 27 |
GFL Environmental Inc.gflenv.com
A leading North American provider of environmental services for solid waste, liquid waste, and soil remediation, focusing on customer service, safety, and compliance |
8,244 | |||
| 28 |
King County, WAkingcounty.gov
A leading Washington employer, transforming government operations to provide essential services to over 2 million residents #GoPublic |
8,009 | |||
| 29 |
TRC Companies, Inc.trccompanies.com
Providing advisory, consulting, construction, engineering, and management services to help clients adapt and achieve sustainable, impactful results. |
7,463 | |||
| 30 |
The Nature Conservancynature.org
Protecting and conserving natural resources through science-based, community-driven efforts to ensure a sustainable future for all life. |
7,441 | |||
| 31 |
Novelisnovelis.com
A global leader in producing flat-rolled aluminum products and recycling, providing innovative solutions to aerospace, automotive, beverage can, and specialty markets |
7,411 | |||
| 32 |
SERVPROservpro.com
Leading fire and water cleanup and restoration company with over 2,000 franchises providing disaster recovery services nationwide. |
7,178 | |||
| 33 |
Fairfax County Governmentfairfaxcounty.gov
Fairfax County Government values ethics, transparency, and public service They offer a supportive work environment, competitive benefits, and opportunities for career growth |
7,098 | |||
| 34 |
Environment and Climate Change Canadacanada.ca
Inform Canadians on environmental protection, implement clean growth framework, collaborate with partners, conduct research, develop policies, enforce laws. |
6,865 | |||
| 35 |
City of Dallasdallascityhall.com
Local government providing public services, managing city operations, supporting community needs, and promoting values of empathy, ethics, excellence, and equity. |
6,844 | |||
| 36 |
Stericyclelinktr.ee
A leading compliance company providing essential services for proper disposal of medical waste and confidential information, protecting client relationships and the environment |
6,777 | |||
| 37 |
Clariosclarios.com
Global leader in advanced energy storage solutions, producing 150 million batteries annually for a third of the world's vehicles Expanding capacity to meet future demand |
6,268 | |||
| 38 |
Abdul Latif Jameelalj.com
Global network of diversified businesses operating in mobility, energy, environmental services, financial services, health, real estate, logistics, retail, and media. |
5,818 | |||
| 39 |
Veolia | North Americaveolianorthamerica.com
Provides resource management solutions including water decontamination, toxic waste handling, fossil fuel alternatives, wastewater reuse, and battery recycling for cities and industries. |
5,812 | |||
| 40 |
Asplundh Tree Expert, LLCasplundh.com
A company specializing in safe and efficient line clearance services for utilities, as well as vegetation management for various industries |
5,645 | |||
| 41 |
Salt River Projectsrpnet.com
Providing essential water and power services to the Phoenix area with a focus on customer satisfaction and innovative technology. |
5,372 | |||
| 42 |
Waste Connectionscareers.wasteconnections.com
Integrated services company providing solid waste collection, transfer, disposal, and recycling services in the US and Canada with a focus on employee empowerment and community impact |
5,355 | |||
| 43 | 5,352 | ||||
| 44 |
Cascadescascades.com
Leading sustainable solutions provider for packaging, hygiene, and recovery needs with 75 production units in North America, prioritizing innovation and environmental well-being |
5,046 | |||
| 45 |
Pratt Industrieslinktr.ee
Leading manufacturer of sustainable corrugated packaging and display solutions, with state-of-the-art facilities across 25 states and Mexico, focusing on environmental sustainability and recycling |
5,027 | |||
| 46 |
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 | |||
| 47 |
Region of Peelpeelregion.ca
A diverse and inclusive organization in Peel Region delivering social services and infrastructure for residents and businesses, fostering a Community for Life |
4,959 | |||
| 48 |
Los Angeles Department of Water and Powerladwp.com
Provide safe, reliable water and electricity services to millions of residents and businesses in Los Angeles, ensuring municipal utility needs. |
4,862 | |||
| 49 | 4,635 | ||||
| 50 |
City Of Hamiltonhamilton.ca
The organization aims to provide high-quality public services for a healthy, safe, and prosperous community while fostering collective ownership and diversity |
4,633 | |||
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. | |||||
| 51 |
Hillsborough Countyhcfl.gov
This company is the official LinkedIn page for Hillsborough County, Florida Government, providing information on programs, services, and events in the area |
4,595 | |||
| 52 |
SUEZ - Water Technologies & Solutionswatertechnologies.com
Providing innovative solutions for industries, including water treatment and process optimization, to help businesses thrive and overcome challenges |
4,538 | |||
| 53 |
Steel Dynamics, Incstld.steeldynamics.com
A leading US steel producer and metals recycler, offering a wide range of steel products, including sheet, structural steel, rail, and special-bar-quality steel |
4,361 | |||
| 54 |
City of Fort Worthfortworthtexas.gov
Local government managing urban growth, preserving heritage, and promoting economic prosperity in a rapidly expanding city with over 900,000 residents. |
4,249 | |||
| 55 |
City of Bramptonbrampton.ca
City with diverse cultures and innovative spirit focusing on technology, environmental innovation, and community-driven progress for residents and businesses. |
4,240 | |||
| 56 | 4,234 | ||||
| 57 |
Atlasoneatlas.com
A nationwide provider of professional testing, inspection, engineering, environmental, and consulting services for public and private sector clients in various markets |
4,185 | |||
| 58 | 4,160 | ||||
| 59 |
Gwinnett County Governmentgwinnettcounty.com
Local government providing public safety, infrastructure, legal, community, and administrative services through multiple departments and elected officials. |
4,134 | |||
| 60 |
Orange County Governmentocfl.net
Serve citizens and guests with integrity, fairness, and professionalism while promoting transparency, accountability, and community involvement in governance. |
4,015 | |||
| 61 |
Wake Countywake.gov
Local government providing tax collection, parks, libraries, planning, health, law enforcement, and administration for diverse urban and rural communities. |
3,908 | |||
| 62 |
City of Columbuscolumbus.gov
A government entity in Columbus, Ohio, working to provide high-quality services, support economic development, and maintain vibrant neighborhoods for residents |
3,819 | |||
| 63 |
York Region (The Regional Municipality of York)york.ca
The company provides services to 12 million residents, 54,000 businesses, and 650,000 employees in a two-tier government structure |
3,799 | |||
| 64 | 3,646 | ||||
| 65 |
Bureau of Reclamationusbr.gov
A key player in water resource management, providing irrigation water to farmers and delivering water to over 31 million people in the western states |
3,623 | |||
| 66 |
City of Portlandportland.gov
Municipal government in Portland, Oregon responsible for fire, police, water supply, urban planning, transportation, parks, and environmental resource management for the community |
3,567 | |||
| 67 |
Harsco Corporationenviri.com
Global provider of environmental waste management, recycling, onsite material processing, and rail infrastructure services across multiple industries and countries. |
3,553 | |||
| 68 |
Fulton County Governmentfultoncountyga.gov
The company's mission is to provide efficient service to residents and visitors, focusing on safety, health, self-sufficiency, economic opportunities, culture, and trust in government |
3,519 | |||
| 69 |
City of Virginia Beachvirginiabeach.gov
Largest Virginia city with diverse industries, scenic beaches, waterways, and vibrant community offering excellent living, working, and business opportunities. |
3,466 | |||
| 70 |
Grupo DEACEROdeacero.com
Manufacturing steel, wire, and finished products, operating recycling centers, steel mills, and wire facilities globally with a focus on sustainable growth and advanced technology. |
3,465 | |||
| 71 |
South Lanarkshire Councilsouthlanarkshire.gov.uk
Support economic growth, business development, and community well-being across diverse urban and rural areas within a key Scottish region. |
3,464 | |||
| 72 |
City of Charlottecharlottenc.gov
Local government providing economic development, neighborhood improvement, transportation planning, and efficient management for over 870,000 residents. |
3,454 | |||
| 73 |
City of Long Beachlongbeach.gov
The company is located in Long Beach, California, and is involved in various industries such as transportation, tourism, commerce, and oil operations |
3,423 | |||
| 74 |
BELFOR Property Restorationbelfor.com
Global property restoration and disaster recovery services specializing in fire, water, wind damage with customized emergency response and repair solutions. |
3,422 | |||
| 75 |
American Wateramwater.com
Providing safe, clean, reliable, and affordable drinking water and wastewater services to over 14 million people across multiple states. |
3,399 | |||
| 76 |
Libertyjobs.libertyenergyandwater.com
Provider of essential energy and water services, including clean, renewable power generation, with a focus on sustainability and customer satisfaction |
3,364 | |||
| 77 |
City of Raleighraleighnc.gov
A leading city in North Carolina known for innovation, education, and quality of life with diverse career opportunities for various professionals |
3,352 | |||
| 78 |
CT Department of Energy and Environmental Protectionportal.ct.gov
The organization is focused on conserving and protecting natural resources, improving air and water quality, and promoting clean, reliable energy in Connecticut |
3,344 | |||
| 79 | 3,311 | ||||
| 80 |
County of Los Angeles Department of Public Workspw.lacounty.gov
The organization plans, designs, constructs, and upkeeps modern infrastructure to enhance all communities within LA County |
3,303 | |||
| 81 |
The Davey Tree Expert Companydavey.com
The organization provides research-driven tree services, grounds maintenance, and environmental solutions for various partners, focusing on sustainability and exceeding client expectations |
3,268 | |||
| 82 |
Pace Analytical Servicespacelabs.com
Provides analytical testing, laboratory data, and life sciences services to help businesses, industries, and governments make critical decisions for a safer, healthier world. |
3,184 | |||
| 83 |
Aquaaquawater.com
Providing water and wastewater services to over 3 million people across multiple U.S. states with a focus on safety and integrity. |
3,174 | |||
| 84 |
Savannah River Nuclear Solutionssavannahrivernuclearsolutions.com
A company responsible for managing and operating the Department of Energy's Savannah River Site in South Carolina, working with Newport News Nuclear and Honeywell |
3,126 | |||
| 85 |
Safety-Kleensafety-kleen.com
Leading environmental services company offering used oil recycling, parts cleaning, and other responsible solutions to protect customers and the environment |
3,098 | |||
| 86 | 3,077 | ||||
| 87 | 3,009 | ||||
| 88 |
NYC Department of Environmental Protection (NYC DEP)nyc.gov
This city agency manages New York City's water supply, distributing clean drinking water, treating wastewater, and regulating air quality and pollution |
3,005 | |||
| 89 |
City of Minneapolisminneapolismn.gov
City governance focused on safety, equity, economic growth, environmental protection, and effective community engagement for residents' well-being. |
2,774 | |||
| 90 |
Darling Ingredientsdarlingii.com
Transforms animal agriculture and food industry by-products into ingredients for nutrition, animal feed, crops, and renewable energy worldwide. |
2,759 | |||
| 91 | 2,738 | ||||
| 92 |
City of Winnipegwinnipeg.ca
Local government managing urban development, public services, and economic growth in a diverse, steadily growing Canadian city. |
2,732 | |||
| 93 |
Cambridgeshire County Councilcambridgeshire.gov.uk
Local government focusing on sustainability, equality, and care by managing health, education, finance, and community services for residents. |
2,720 | |||
| 94 |
California Department of Water Resourceswater.ca.gov
This company oversees and manages California's water supply, including the State Water Project, while focusing on conservation, development, and sustainability |
2,703 | |||
| 95 |
Evoqua Water Technologiesxylem.com
A global leader in water solutions, specializing in water and wastewater management, conservation, and sustainability through innovative products and expertise |
2,688 | |||
| 96 |
Kleinfelderkleinfelder.com
Engineering, science, and construction firm offering solutions for transportation, water, energy, and private infrastructure projects with a dedicated, cross-disciplinary team |
2,656 | |||
| 97 |
Babcock & Wilcoxbabcock.com
A global leader in energy and environmental technologies and services for power, renewable, and industrial markets, with a history of over 150 years |
2,627 | |||
| 98 |
Durham Region (The Regional Municipality of Durham)durham.ca
Durham Region provides a wide range of services to a group of diverse communities, including paramedics, recycling, water supply, transit, and social programs |
2,624 | |||
| 99 |
Brown and Caldwellbrownandcaldwell.com
Privately-held environmental firm specializing in US water and environmental sectors Offering engineering, scientific, consulting, and construction services globally Passionate about innovation and service excellence |
2,556 | |||
| 100 |
Chesterfield Countychesterfield.gov
Local government providing public safety, health, recreation, cultural activities, community development, utilities, and public health services to residents. |
2,501 | |||
Turn this list into pipeline
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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 13, 2026.
More company lists in North America
- The largest companies in North America 119,525
- Multinational companies in North America 18,655
- Manufacturers in North America 10,136
- Education providers in North America 8,464
- Retail chains in North America 8,233
- Financial services firms in North America 7,767
- Companies with in-house R&D in North America 7,617
- Critical infrastructure operators in North America 6,768
- Hardware manufacturers in North America 5,983
- Financial Services companies in North America 5,618
- Public sector organisations in North America 5,042
- Higher Education companies in North America 3,953
- Construction companies in North America 3,792
- Energy companies in North America 3,542
- Publicly traded companies in North America 3,538
- Family-owned companies in North America 3,387
- Corporate groups and holding companies in North America 3,311
- Distributors and wholesalers in North America 3,208
- Hotel and hospitality groups in North America 3,149
- E-commerce companies in North America 2,944
- Logistics companies in North America 2,701
- Insurance companies in North America 2,622
- Government Administration companies in North America 2,495
- Retail companies in North America 2,407