Total of 4,083,545 companies
On 31 December 1927 about 21 companies were established in Pennsylvania.
1589719
2140702
2159739
2178507
2225120
2227104
2241242
2248810
2402409
2440825
2505217
2527361
4780892
5214724
5437010
5643146
5836840
5861300
5949085
6108478
6235626