Total of 4,083,545 companies
On 1 March 1918 about 57 companies were established in Pennsylvania.
2016114
2039074
2039018
2107373
2112672
2136734
2157892
2161350
2164935
2180692
2180722
2191424
2197665
2237496
2237499
2237502
2237505
2237507
2238466
2252593
2253113
2253150
2273174
2298473
2330255
2330955
2330995
2335216
2347620
2361784