# The 50 largest environmental services companies in Texas

Tamtam tracks 98 environmental services companies headquartered in Texas. This list ranks the 50 largest by number of employees on LinkedIn, led by Jacobs, WM and CMC. Their median headcount is 986. Half of them were founded in 1966 or later. The most common headquarters are Houston (11), Dallas (5) and Austin (4).

The environmental services sector in Texas is represented here by a mix of large corporations and public entities. Companies like WM and Waste Connections provide comprehensive waste management, recycling, and renewable energy solutions. Safety-Kleen specializes in used oil recycling and parts cleaning, while ALS Life Sciences offers testing, inspection, and certification services.

Alongside these, local government bodies such as the City of Austin, City of Dallas, City of Fort Worth, City of Plano, and City of Corpus Christi are significant employers, managing public services and urban development. A notable pattern is the strong presence of governmental administrations, indicating their substantial role in the environmental and public services landscape of Texas.

🇺🇸 Texas · 50 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Jacobs](https://www.tamtam.ai/c/jacobs) (jacobs.com)<br>Delivering outcomes and solutions for complex challenges in advanced manufacturing, cities, energy, environment, life sciences, transportation, and water, from advisory to lifecycle management. | Business Consulting and Services | 🇺🇸 Dallas | 68,461 | 1947 |
| 2 | [WM](https://www.tamtam.ai/c/wm) (wm.com)<br>Provides comprehensive waste collection, disposal, recycling, and renewable energy solutions tailored to municipal, commercial, industrial, and residential customers. | Environmental Services | 🇺🇸 Houston | 28,255 |  |
| 3 | [CMC](https://www.tamtam.ai/c/cmc) (cmc.com)<br>Focus on recruiting, developing, and supporting talented employees in the metals industry with an emphasis on safety and career growth. | Construction | 🇺🇸 Irving | 9,653 |  |
| 4 | [City of Austin](https://www.tamtam.ai/c/city-of-austin) (austintexas.gov)<br>Local government managing city employees, providing public services, promoting transparency, innovation, and maintaining high quality of life standards. | Government Administration | 🇺🇸 Austin | 8,954 | 1839 |
| 5 | [City of Dallas](https://www.tamtam.ai/c/city-of-dallas) (dallascityhall.com)<br>Local government providing public services, managing city operations, supporting community needs, and promoting values of empathy, ethics, excellence, and equity. | Government Administration | 🇺🇸 Dallas | 6,844 | 1841 |
| 6 | [Waste Connections](https://www.tamtam.ai/c/waste-connections) (careers.wasteconnections.com)<br>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 | Environmental Services | 🇺🇸 Spring | 5,355 | 1997 |
| 7 | [City of Fort Worth](https://www.tamtam.ai/c/city-of-fort-worth) (fortworthtexas.gov)<br>Local government managing urban growth, preserving heritage, and promoting economic prosperity in a rapidly expanding city with over 900,000 residents. | Government Administration | 🇺🇸 Fort Worth | 4,249 | 1849 |
| 8 | [Safety-Kleen](https://www.tamtam.ai/c/safety-kleen) (safety-kleen.com)<br>Leading environmental services company offering used oil recycling, parts cleaning, and other responsible solutions to protect customers and the environment | Environmental Services | 🇺🇸 Plano | 3,098 |  |
| 9 | [Darling Ingredients](https://www.tamtam.ai/c/darling-ingredients) (darlingii.com)<br>Transforms animal agriculture and food industry by-products into ingredients for nutrition, animal feed, crops, and renewable energy worldwide. | Manufacturing | 🇺🇸 Irving | 2,759 | 1882 |
| 10 | [Interstate Batteries](https://www.tamtam.ai/c/interstate-batteries) (interstatebatteries.com)<br>Leading battery distributor network with extensive dealer and franchise presence, committed to quality, innovation, and sustainable power solutions nationwide. | Manufacturing | 🇺🇸 Dallas | 2,356 | 1952 |
| 11 | [Trinity Consultants](https://www.tamtam.ai/c/trinity-consultants) (trinityconsultants.com)<br>A global EH&S firm offering services in regulatory compliance, ecology, water, built environments, and life sciences since 1974 | Environmental Services | 🇺🇸 Dallas | 2,195 | 1974 |
| 12 | [LCRA](https://www.tamtam.ai/c/lcra) (lcra.org)<br>A Texas-based organization providing essential services such as electric power generation, water management, public parks, and community development without state funding | Utilities | 🇺🇸 Austin | 2,192 | 1934 |
| 13 | [City of Plano](https://www.tamtam.ai/c/city-of-plano) (plano.gov)<br>Residential city with diverse neighborhoods, quality schools, parks, cultural venues, and convenient transportation near Dallas and major airports. | Government Administration | 🇺🇸 Plano | 2,115 | 1873 |
| 14 | [City of Corpus Christi](https://www.tamtam.ai/c/city-of-corpus-christi) (corpuschristitx.gov)<br>The City of Corpus Christi delivers municipal services that prioritize health, safety, and welfare, aiming to enhance residents' quality of life through excellence and transparency | Government Administration | 🇺🇸 Corpus Christi | 1,988 | 1852 |
| 15 | [ALS Life Sciences](https://www.tamtam.ai/c/als-life-sciences) (alsglobal.com)<br>A global company offers testing, inspection, certification, and verification services, along with state-of-the-art technical solutions for efficient, socially responsible business operations | Environmental Services | 🇺🇸 Houston | 1,954 |  |
| 16 | [Nalco Champion, An Ecolab Company](https://www.tamtam.ai/c/nalco-champion-an-ecolab-company) (ecolab.com)<br>Provider of specialized services and solutions for the upstream and downstream sectors, now operating as ChampionX and Nalco Water | Oil and Gas | 🇺🇸 Sugar Land | 1,817 |  |
| 17 | [City of Arlington](https://www.tamtam.ai/c/city-of-arlington) (arlingtontx.gov)<br>Providing economic development, human resources, and municipal services to a major entertainment hub featuring professional sports teams, global businesses, and international tourism. | Economic Programs | 🇺🇸 Arlington | 1,796 | 1876 |
| 18 | [Select Water Solutions](https://www.tamtam.ai/c/select-water-solutions) (selectwater.com)<br>A leader in water management and chemical technology for oil and gas industry, offering comprehensive solutions for well lifecycle optimization | Oil and Gas | 🇺🇸 Gainesville | 1,780 | 2008 |
| 19 | [TETRA Technologies, Inc.](https://www.tamtam.ai/c/tetra-technologies-inc) (onetetra.com)<br>Global energy services company specializing in bromine-based fluids, calcium chloride solutions, water management, frac flowback, and well testing services with a focus on low carbon energy markets | Oil and Gas | 🇺🇸 Spring | 1,599 | 1981 |
| 20 | [Reconext](https://www.tamtam.ai/c/reconext) (reconext.com)<br>Innovative post-sale solutions for electronic devices, offering aftermarket lifecycle services such as returns management, repair, asset recovery, and trade-in services | IT Services and IT Consulting | 🇺🇸 Grapevine | 1,302 | 2020 |
| 21 | [OWL Services](https://www.tamtam.ai/c/owl-services) (owlservices.com)<br>Premier service provider for industrial, commercial, fleet, and municipal EV charging and fueling companies, with a focus on sales, installation, compliance, and maintenance | Facilities Services | 🇺🇸 Irving | 1,261 | 2022 |
| 22 | [Stallion Infrastructure Services](https://www.tamtam.ai/c/stallion-infrastructure-services) (stallionis.com)<br>A leading Business Services company in the energy sector, providing innovative solutions in logistics, technology, and sustainability across various industries in the US | Construction Hardware Manufacturing | 🇺🇸 Houston | 1,129 | 2002 |
| 23 | [SPL](https://www.tamtam.ai/c/spl) (spllabs.com)<br>Provider of compliance and testing services for environmental, energy, and other industries Offers ISO certified labs, verifiable test methods, real-time data access, and expert scientists | Oil and Gas | 🇺🇸 Houston | 1,058 | 1944 |
| 24 | [BMS CAT](https://www.tamtam.ai/c/bms-cat-haltom-city) (bmscat.com)<br>A company founded in 1948 as a furniture and dye shop, now a leader in fire/water restoration, disaster cleanup, and mold remediation globally | Facilities Services | 🇺🇸 Haltom City | 988 | 1948 |
| 25 | [Western Midstream](https://www.tamtam.ai/c/western-midstream) (westernmidstream.com)<br>A midstream service provider delivering essential energy and inputs worldwide, focusing on reliability, cost efficiency, safety, and environmental protection | Oil and Gas | 🇺🇸 The Woodlands | 986 |  |
| 26 | [San Antonio Water System](https://www.tamtam.ai/c/san-antonio-water-system) (saws.org)<br>Provides water and wastewater services to over 2 million consumers, leading in water innovation and sustainable resource management. | Utilities | 🇺🇸 San Antonio | 974 | 1992 |
| 27 | [FCC Environmental Services](https://www.tamtam.ai/c/fcc-environmental-services) (fccenvironmental.com)<br>An award-winning leader in environmental services providing waste and recycling solutions to households and commercial customers, transforming waste into resources | Environmental Services | 🇺🇸 Houston | 948 |  |
| 28 | [USA DeBusk](https://www.tamtam.ai/c/usa-debusk) (usadebusk.com)<br>Provider of mechanical and industrial cleaning services for downstream energy market, offering maintenance, hydro blasting, tank cleaning, and safety-focused operations across the US | Oil and Gas | 🇺🇸 Deer Park | 886 | 2012 |
| 29 | [CECO Environmental Corporation](https://www.tamtam.ai/c/ceco-environmental-corporation) (cecoenviro.com)<br>A global industrial company specializing in environmentally focused solutions for air quality, energy optimization, and custom engineered applications across various markets | Environmental Services | 🇺🇸 Addison | 885 | 1966 |
| 30 | [Ecobat](https://www.tamtam.ai/c/ecobat) (ecobat.com)<br>Global leader in battery recycling, providing sustainable solutions for essential energy storage needs in a circular economy Powers industries worldwide Offers job opportunities | Mining | 🇺🇸 Dallas | 863 | 1938 |
| 31 | [City of Grand Prairie](https://www.tamtam.ai/c/city-of-grand-prairie) (gptx.org)<br>Grand Prairie is a vibrant city offering a smart location for residents and businesses, with a welcoming community and family-friendly environment | Government Administration | 🇺🇸 Grand Prairie | 811 | 1863 |
| 32 | [Geokinetics Inc.](https://www.tamtam.ai/c/geokinetics-inc) (geokinetics.com)<br>A Houston-based company specializing in acquiring and processing seismic data globally, with a Multi-Client Survey Library covering North America, Brazil, and Mexico | Oil and Gas | 🇺🇸 Houston | 806 |  |
| 33 | [The City of El Paso Texas](https://www.tamtam.ai/c/the-city-of-el-paso-texas) (elpasotexas.gov)<br>Provides essential municipal services, develops local economic growth, maintains safe neighborhoods, and offers recreational and cultural opportunities to ensure high community quality. | Government Administration | 🇺🇸 El Paso | 735 |  |
| 34 | [HydroChemPSC](https://www.tamtam.ai/c/hydrochempsc) (hpc-industrial.com)<br>HydroChemPSC provides specialty maintenance services and technology solutions to critical energy infrastructure in the US, emphasizing safety, efficiency, and environmental compliance | Environmental Services | 🇺🇸 Deer Park | 717 | 1977 |
| 35 | [ALS - North America, Environmental](https://www.tamtam.ai/c/als-north-america-environmental) (alsglobal.com)<br>ALS provides a wide range of environmental analytical testing services worldwide for soil, water, air, and biota, with expertise in specialty testing areas | Environmental Services | 🇺🇸 Houston | 713 |  |
| 36 | [SMS Infocomm](https://www.tamtam.ai/c/sms-infocomm) (smsinfocomm.com)<br>A global company providing logistics, parts distribution, repair, refurbishment, and customer support center services to electronics and ICT companies, with a focus on recycling | Consumer Electronics | 🇺🇸 Grapevine | 670 | 1996 |
| 37 | [Resource Environmental Solutions LLC](https://www.tamtam.ai/c/resource-environmental-solutions-llc) (res.us)<br>An industry leader in nature-based solutions, specializing in environmental mitigation, stormwater management, and resilient natural infrastructure projects for communities nationwide | Environmental Services | 🇺🇸 Bellaire | 654 | 2007 |
| 38 | [Ambipar \| United States](https://www.tamtam.ai/c/ambipar-united-states) (ambipar.com)<br>The company specializes in crisis and emergency management, helping organizations prepare for and navigate unexpected events to minimize disruption and ensure resilience | Environmental Services | 🇺🇸 Houston | 632 | 1983 |
| 39 | [City of Sugar Land, TX](https://www.tamtam.ai/c/city-of-sugar-land-tx) (sugarlandtx.gov)<br>Community focused on sustainable economic growth, hosting major corporations and providing extensive commercial space for regional employment. | Government Administration | 🇺🇸 Sugar Land | 607 | 1959 |
| 40 | [Construction Industry](https://www.tamtam.ai/c/construction-industry)<br>This company specializes in water mitigation, fire and smoke damage services, mold remediation, asbestos abatement, fine art restoration, and reconstruction services | Construction | 🇺🇸 Austin | 565 |  |
| 41 | [VLS Environmental Solutions, LLC](https://www.tamtam.ai/c/vls-environmental-solutions-llc) (vlses.com)<br>Sustainable solutions for waste management and compliance, promoting efficiency and sustainability while building trust with communities and government agencies | Environmental Services | 🇺🇸 Houston | 546 | 2007 |
| 42 | [BakerCorp](https://www.tamtam.ai/c/bakercorp) (unitedrentals.com)<br>A market leader in tank, pump, filtration, and shoring equipment rentals, providing high-quality industrial equipment to customers in various industries globally | Environmental Services | 🇺🇸 Plano | 544 |  |
| 43 | [Evergreen North America Industrial Services](https://www.tamtam.ai/c/evergreen-north-america-industrial-services) (evergreenindustrialservices.com)<br>Provides comprehensive industrial and environmental services, including cleaning, waste management, vapor control, and specialized technical solutions for various industrial plants and sites. | Environmental Services | 🇺🇸 La Porte | 537 | 2000 |
| 44 | [CETCO ENERGY SERVICES](https://www.tamtam.ai/c/cetco-energy-services) (mineralstech.com)<br>Trusted partner in oil & gas industry, providing solutions for complex fluid challenges worldwide Specializes in efficient project management and innovative technologies | Oil and Gas | 🇺🇸 Houston | 527 | 1994 |
| 45 | [Vortex Companies - Trenchless Infrastructure Rehabilitation Solutions](https://www.tamtam.ai/c/vortex-companies-trenchless-infrastructure-rehabilitation-solutions) (vortexcompanies.com)<br>The company provides advanced trenchless technologies and turnkey services to effectively renew water, sewer, and industrial infrastructure with experienced personnel | Utilities | 🇺🇸 Houston | 505 | 2015 |
| 46 | [Austin Water](https://www.tamtam.ai/c/austin-water) (austintexas.gov)<br>Providing safe, reliable, high-quality water services to over 1 million people in Austin, drawing from the Colorado River, with wastewater treatment and reclamation | Utilities | 🇺🇸 Austin | 499 | 1902 |
| 47 | [Trinity River Authority of Texas](https://www.tamtam.ai/c/trinity-river-authority-of-texas) (trinityra.org)<br>This organization promotes conservation and development of natural resources in the Trinity River basin for the benefit of Texans | Environmental Services | 🇺🇸 Arlington | 496 | 1955 |
| 48 | [City of Abilene, Texas](https://www.tamtam.ai/c/city-of-abilene-texas) (abilenetx.gov)<br>An organization in Abilene, Texas, focused on building and maintaining a high-quality community through teamwork, respect, integrity, service, and excellence | Government Administration | 🇺🇸 Abilene | 493 | 1881 |
| 49 | [HydroChem LLC](https://www.tamtam.ai/c/hydrochem-llc) (hpc-industrial.com)<br>Innovative industrial cleaning company focused on technology and safety to deliver superior results, with a commitment to exceeding customer expectations | Environmental Services | 🇺🇸 Deer Park | 490 |  |
| 50 | [Liquid Environmental Solutions](https://www.tamtam.ai/c/liquid-environmental-solutions) (liquidenviro.com)<br>Leading US company specializing in non-hazardous liquid waste collection and disposal, ensuring regulatory compliance and environmental protection for various industries nationwide | Environmental Services | 🇺🇸 Irving | 486 |  |

## 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 12, 2026.

## More company lists in Texas

- [The largest companies in Texas](https://www.tamtam.ai/l/largest-companies-texas) (9,277)
- [Multinational companies in Texas](https://www.tamtam.ai/l/multinational-companies-texas) (1,418)
- [Oil and Gas companies in Texas](https://www.tamtam.ai/l/oil-and-gas-companies-texas) (969)
- [Energy companies in Texas](https://www.tamtam.ai/l/energy-companies-texas) (857)
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- [Professional services firms in Texas](https://www.tamtam.ai/l/professional-services-firms-texas) (629)
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- [Transportation, Logistics, Supply Chain and Storage companies in Texas](https://www.tamtam.ai/l/transportation-logistics-supply-chain-and-storage-companies-texas) (375)
- [Companies with a mobile app in Texas](https://www.tamtam.ai/l/companies-with-mobile-app-texas) (366)
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## The same list elsewhere in United States

- [Environmental services companies in California](https://www.tamtam.ai/l/environmental-services-companies-california-united-states) (95)
- [Environmental services companies in Florida](https://www.tamtam.ai/l/environmental-services-companies-florida) (58)
- [Environmental services companies in New York State](https://www.tamtam.ai/l/environmental-services-companies-new-york-state-united-states) (39)
- [Environmental services companies in North Carolina](https://www.tamtam.ai/l/environmental-services-companies-north-carolina) (37)
- [Environmental services companies in Pennsylvania](https://www.tamtam.ai/l/environmental-services-companies-pennsylvania) (35)
- [Environmental services companies in Illinois](https://www.tamtam.ai/l/environmental-services-companies-illinois) (34)
- [Environmental services companies in Washington State](https://www.tamtam.ai/l/environmental-services-companies-washington-state) (29)
- [Environmental services companies in Ohio](https://www.tamtam.ai/l/environmental-services-companies-ohio) (26)
- [Environmental services companies in Alabama](https://www.tamtam.ai/l/environmental-services-companies-alabama) (25)

## The same list elsewhere

- [Environmental services companies in the world](https://www.tamtam.ai/l/environmental-services-companies-in-the-world) (4,213)
- [Environmental services companies in North America](https://www.tamtam.ai/l/environmental-services-companies-in-north-america) (1,043)

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Source: https://www.tamtam.ai/l/environmental-services-companies-texas