Explore jobs
Find specific jobs
Explore careers
Explore professions
Best companies
Explore companies
We figured out the best biggest companies to work for in Oklahoma using data on salaries, company financial health, and employee diversity. You can also search for the best biggest companies to work for in any other state or city.

Zippia score 3.7
Great Plains Regional Medical Center is a not-for-profit health organization leading Western Oklahoma and Eastern Texas Panhandle in comprehensive, cost-effective, high quality healthcare.
Zippia score 4.0
Bronco Oilfield Services is the leading source for drilling, workover, and production completion services in the oil and gas industry. Technologically advanced equipment operated by knowledgeable personnel to ensure that the job is performed safely and efficiently. Founded in 1982, Bronco Oilfield Services has established itself as a leader in providing quality flowback, well testing, surface control and pumping equipment services.
Zippia score 3.7
Superior Fabrication specializes in the manufacture of oil and gas production and processing equipment for upstream, midstream and downstream customers.
Zippia score 4.8
Clean Harbors is the leading provider of environmental, energy and industrial services throughout North America. The Company serves over 50,000 customers, including a majority of the Fortune 500 companies, thousands of smaller private entities and numerous federal, state, provincial and local governmental agencies. Within Clean Harbors Environmental Services, the Company offers Technical Services and Field Services. Technical Services provide a broad range of hazardous material management and disposal services including the collection, packaging, transportation, recycling, treatment and disposal of hazardous and non-hazardous waste. Field Services provide a wide variety of environmental cleanup services on customer sites or other locations on a scheduled or emergency response basis. Within Clean Harbors Energy and Industrial Services, the Company offers Industrial Services and Exploration Services. Industrial Services provide industrial and specialty services, such as high-pressure and chemical cleaning, catalyst handling, decoking, material processing and industrial lodging services to refineries, chemical plants, pulp and paper mills, and other industrial facilities. Exploration Services provide exploration and directional boring services to the energy sector serving oil and gas exploration, production, and power generation. Headquartered in Norwell, Massachusetts, Clean Harbors has more than 175 locations, including over 50 waste management facilities, throughout North America in 36 U.S. states, seven Canadian provinces, Mexico and Puerto Rico. The Company also operates international locations in Bulgaria, China, Singapore, Sweden, Thailand and the United Kingdom.
Zippia score 4.4
Summit Materials was formed in 2009 to develop a leading business in the aggregates and heavy-side building materials sector through strategic acquisitions. Summit Materials was founded by its CEO Tom Hill and a group of investors that include members of its management team, Blackstone Capital Partners V L.P., and Silverhawk Capital Partners. Tom Hill is the former CEO of Oldcastle Inc., the U.S. division of CRH, Plc.
Zippia score 4.3
Stallion Oilfield Services is a energy service company that provides upstream, midstream, and industrial services to oil and gas exploration and production companies, drilling contractors, pipeline companies, refiners, and other industry.
Zippia score 4.5
MarkWest Energy Partners, L.P. (NYSE: MWE) is a publicly traded master limited partnership formed in January 2002. We are engaged in the gathering, processing and transportation of natural gas; the transportation, fractionation, storage and marketing of NGLs; and the gathering and transportation of crude oil.
Zippia score 3.6
Quintana Energy Services Inc. provides oilfield services to onshore oil and natural gas exploration and production companies operating in conventional and unconventional plays in the United States. It operates through four segments: Directional Drilling Services, Pressure Control Services, Pressure Pumping Services, and Wireline Services. The Directional Drilling Services segment provides directional, horizontal, underbalanced, and measurement-while-drilling, as well as rental tool and pipe inspection services. The Pressure Control Services segment offers coiled tubing, rig-assisted snubbing, nitrogen, fluid pumping, and well control services for drilling, completion, and workover activities. As of March 31, 2017, this segment had a fleet of 23 coiled tubing, 36 rig-assisted snubbing, 23 nitrogen pumping, and 22 fluid pumping units. The Pressure Pumping Services segment provides hydraulic fracturing services; cementing services, such as surface- and intermediate-casing and long-string cementing services; and a range of acid stimulation services comprising CO2 foamed acid stimulation services. As of March 31, 2017, this segment had a pressure pumping fleet of 236,500 hydraulic horsepower. The Wireline Services segment offers pump-down services for setting plugs between frac stages, as well as the deployment of perforation equipment in connection with plug-and-perf operations; other pump-down and cased-hole wireline services, including electro-mechanical pipe-cutting and punching; cased-hole production logging, injection profiling, stimulation performance evaluation, and water break-through identification services; and industrial logging services for cavern, storage, and injection wells, as well as operates Archer s POINT proprietary detection system and SPACE imaging and measurement platform in the land market. As of March 31, 2017, it owned 58 wireline units. The company was founded in 2017 and is headquartered in Houston, Texas.
Zippia score 4.6
FTS International, Inc. is one of the largest providers of hydraulic fracturing services in North America. Our services enhance hydrocarbon flow from oil and natural gas wells drilled by exploration and production, or E&P, companies in shale and other unconventional resource formations.
Zippia score 4.3
Warren Power and Machinery, LP., doing business as Warren CAT, operates as a dealer of new and used Caterpillar construction and heavy equipment in Texas and Oklahoma. The company offers articulated trucks, asphalt pavers, backhoe loaders, cold planers, compact track and multi terrain loaders, compactors, dozers, draglines, drills, electric rope shovels, excavators, feller bunchers, forest machines, forwarders, harvesters, hydraulic mining shovels, knuckleboom loaders, material handlers, motor graders, off-highway trucks, on-highway trucks, pipelayers, road reclaimers, site prep tractors, skid steer loaders, skidders, telehandlers, track loaders, underground mining equipment, wheel dozers, wheel excavators and loaders, and wheel tractor-scrapers. It also provides diesel and heavy-duty natural gas engines, and generators; and agricultural equipment, including hay and tillage equipment, windrowers, combines, floaters, forage equipment, headers, planting equipment, sprayers, bulldozers, combination rollers, dump trucks, mining wheel loaders, track excavators, trailers, trenchers, underground mining loaders, water trucks, and more. In addition, it offers parts and services, and rental equipment. The company was founded in 2002 and is based in Oklahoma City, Oklahoma. It has additional locations in Ardmore, Elk City, Enid, Guymon, St. Poteau, and Tulsa, Oklahoma; and Abilene, Amarillo, Dalhart, Lubbock, Odessa, San Angelo, Wichita Falls, and Midland, Texas. Warren Power and Machinery, LP. operates as a subsidiary of Warren Equipment Company.
Zippia score 4.0
United Country Real Estate includes a variety of rural real estate for sale. From country homes to ranches for sale, horse properties and farms to waterfront property & mountain property, you can search for rural real estate land & country house auctio...
Zippia score 3.7
Assist Wireless provides FREE mobile devices and affordable Lifeline cell phone service for individuals and families who qualify for government assistance. This offering is a federal Lifeline supported service provided by Assist Wireless LLC. LIFELI...
Zippia score 3.8
Baptist Village Communities is Oklahoma's largest not-for-profit provider of senior housing services. Our communities are places where the Friends Team and the residents serve together in a Christian environment. Services at home also are available thr...
Zippia score 4.1
T&W Tire is a full-service commercial tire company. We specialize in serving the tire needs of commercial fleets, trucking companies, earth-moving businesses, and road builders, as well as individuals buying tires for their passenger car, or light truc...
Zippia score 4.1
Founded in 2004, Physical Therapy Central is the largest private physical therapy practice in Oklahoma with more than 20 locations throughout the state. The company has experienced professionals who are committed to providing every patient with the highest standard of care. Some of their clinical expertise include spine care and rehabilitation, manual physical therapy. General orthopedic conditions, and sports specific injuries.
Zippia score 4.0
501(c)3 nonprofit community mental health organization. Behavioral health and physical health care coordination services
Zippia score 4.0
Rumpl applies technical materials to everyday blankets for indoor and outdoor use.
| Rank | Company | Zippia score |
|---|---|---|
| 1 | Great Plains Regional Medical Center | |
| 2 | Bronco Oilfield Services | |
| 3 | Superior Lube |