| Year | Detail |
| 1885 |
Johnson Electric Service Company was founded. |
| 1907 |
Introduced line of gasoline cars. |
| 1913 |
Hoover Steel Ball Company opens to serve the precision bearing and automotive industries. |
| 1925 |
Johnson Service Company buys the patent for a dual thermostat. |
| 1940 |
Johnson Service Company goes public. |
| 1964 |
Johnson Service Company builds its first European manufacturing plant in Lomagna Italy. |
| 1974 |
The company changes its name to Johnson Controls Inc. |
| 1978 |
Johnson Controls acquires Globe-Union. |
| 1985 |
The company acquired Hoover Universal. |
| 2002 |
Johnson Controls acquires its Varta automotive battery division based in Germany. |
| 2003 |
The company acquires Borg Instruments of Germany. |
| 2005 |
The company acquires York International heating. |
| 2023 |
Johnson Controls partners with Nucor to recycle nearly 100% of scrap steel at Johnson Controls facilities in the U.S. |