> Best company to work for: Wellmark
> Employees: 1,878
> Founded: 1939
> Headquarters: Sioux Falls, SD
Mutual insurance company Wellmark provides insurance to residents of South Dakota and Iowa. Zippia ranked Wellmark as South Dakota’s best company to work for as it received high marks for its salary — the average employee takes home $57,836 per year. The company’s high financial performance score also helped boost its rank to the best company to work for in South Dakota.
> Best company to work for: Oak Ridge National Laboratory
> Employees: 4,750
> Founded: 1943
> Headquarters: Oak Ridge, TN
Oak Ridge National Laboratory is one of just two governmental agencies to rank as the best place to work in their state. Workers at the lab research “advanced materials, supercomputing, neutrons, and nuclear science” for government purposes. The laboratory pays an average annual salary of over $63,000, though the highest earning workers can earn over $111,000. In part because of these high salaries, Oak Ridge National Laboratory ranks as the best place to work in Tennessee.
> Best company to work for: Exxon Mobil
> Employees: 71,100
> Founded: 1870
> Headquarters: Irving, TX
Exxon Mobil, the Irving, Texas-based energy giant, ranks as the best company to work for in the Lone Star State. According to Zippia data, the average Exxon employee earns over $43,000 a year, more than the average pay at several competing companies, including Valero and Chevron. Exxon Mobil also receives high marks for the diversity of its workforce.
> Best company to work for: CHG Healthcare
> Employees: 953
> Founded: 1979
> Headquarters: Midvale, UT
Physician staffing company CHG Healthcare ranks as Utah’s best company to work for and one of the best health care companies to work for in the nation. Zippia gave the company a perfect 10/10 score for salaries, as the average worker earns nearly $81,000 a year, much more than at many competitors. Of over 400 reviews on job review site Glassdoor, 89% of CHG Healthcare employees said they would recommend working for the company to a friend, and 95% approve of how CEO Scott Beck is running the company. Many said they appreciate that the company puts people first, as a core value.
> Best company to work for: Orvis
> Employees: 1,700
> Founded: 1856
> Headquarters: Sunderland, VT
Orvis is a retail business that provides customers with fishing, hunting, and sporting goods equipment. At over 160 years old, Orvis is the oldest company to rank as the best place to work in its state. This kind of long-term stability earned Orvis a high financial performance score on Zippia of 9.7/10, which helped make it the best place to work in Vermont.