Total of 4,083,545 companies
On 31 December 1919 about 30 companies were established in Pennsylvania.
209012
369468
2232996
2253767
2276815
2361440
2389856
2391905
2420797
2433335
2433380
2461969
2488418
2488521
2511367
4688608
4872999
4899202
5091017
5330412
5623741
5860772
5910682
5952459
6007865
6105406
6149773
6201820
6242145
6257505