Fifty-one of the 84 companies on this year’s list added jobs. Among the 84 companies, there were 40,144 jobs added, making overall employment 3 percent more than 2014. Organic growth and acquisitions helped spur the rise in the number of UnitedHealth employees.

Health and medical (15 Cos.)

Jobs: 314,675 Chg. 12.5%

Retail service (16 Cos.)

Jobs: 650,688 Chg. 0.9%

Manufacturing (30 Cos.)

Jobs: 306,402 Chg. 0.5%

Financial services (8 Cos.)

Jobs: 87,910 Chg. -2.4%

Utilities (4 Cos.)

Jobs: 15,686 Chg. 3.0%

Information tech. (11 Cos.)

Jobs: 8,716 Chg. -8.4%

Biggest net job gains in 2015

UnitedHealth Group Inc.

Net gain: 30,000 Chg. 17.6%

Buffalo Wild Wings Inc.

Net gain: 6,800 Chg. 18.3%

Supervalu Inc.

Net gain: 3,000 Chg. 8.6%

Fastenal Co.

Net gain: 2,329 Chg. 12.6%

Patterson Cos. Inc.

Net gain: 2,197 Chg. 37.4%

Biggest net job losses in 2015

Target Corp.

Net loss: (6,000) Chg. -1.7%

U.S. Bancorp

Net loss: (2,833) Chg. -4.1%

Regis Corp.

Net loss: (2,000) Chg. -4.1%

General Mills Inc.

Net loss: (1,473) Chg. -3.5%

Pentair PLC

Net loss: (1,000) Chg. -3.5%