For comparison, and to show how much our economy has changed:
The Biggest Employers in 1955
1. General Motors
Employees in 1955: 576,667
Employees today: 204,000 (as of 2010)
The No.1 car company in the US used to be the No.1 car company in the world. In 1955, GM had more than 50% of the American vehicle market and, between direct employees and those at suppliers, it was responsible for more than 3 million US jobs. GM has emerged from bankruptcy, but has fewer than half as many people, and its US market share is only 20%.
2. U.S. Steel
Employees in 1955: 268,142
Employees today: 43,000 (as of 2010)
US Steel was the largest company in its industry worldwide and was among the Fortune 50 in 1955. A large portion of the steel manufacturing business has moved offshore, first to Japan and then China.
3. General Electric
Employees in 1955: 210,151
Employees today: 304,000 (as of 2010)
General Electric is one of the few companies that has grown significantly over the last five decades. It was largely an industrial firm in 1955, and now makes a large amount of its revenue and profits from financial services.
4. Chrysler
Employees in 1955: 167,813
Employees today: 58,000 (as of 2010)
Another car company that benefited from a very limited number of imports. The firm nearly went out of business during the 1980s recession and was rescued by the US government. It moved into Chapter 11 nearly two years ago.
5. Standard Oil Of New Jersey
Employees in 1955: 155,000
Employees today: 102,700 (as of 2010)
Standard Oil of New Jersey was part of the original Standard Oil trust created by John Rockefeller. The company was merged into what eventually became Exxon Mobil.
Also Read: Apple’s Downfall: Android Sales
6. Amoco
Employees in 1955: 135,784
Employees today: N/A
Another piece of the Rockefeller trust, the company was merged into BP America and is now part of BP plc.
7. CBS
Employees in 1955: 117,143
Employees today: 25,580 (as of 2010)
The dominant force in both national radio and TV, the company also owned several large stations. As media has broken into more forms of delivery, including cable and Internet, CBS has grown smaller.
8. AT&T Technologies
Employees in 1955: 98,141
Employees today: N/A
This division of AT&T handled the telephone company’s R&D was was spun out of AT&T completely in 1984.
9. Goodyear Tire & Rubber
Employees in 1955: 95,727
Employees today: 69,000 (as of 2010)
The largest tire company in the world in 1955, Goodyear had large plants around the world. As competition from Japanese companies grew, the company went through several restructurings including a move into energy.
10. Firestone Tire & Rubber
Employees in 1955: 90,000
Employees today: N/A
The second largest tire company in the world in 1955, Firestone was at one point the exclusive supplier to Ford. The company was sold to Bridgestone of Japan in 1988.
* From: https://247wallst.com/investing/2010/09/21/americas-biggest-...
NOTE: The above link was produced in 2010. In 2010, Amazon wasn't even in the top 10 of employers in the United States. And since 2010, some of the employers above have shrunk in size further.