| Class
I railroads |
3,654 |
| CSX
Transportation |
1,147 |
| Norfolk
Southern Corp. |
2,507 |
| Regional
railroads |
650 |
| Bessemer
and Lake Erie Railroad |
183 |
| Buffalo
and Pittsburgh Railroad, Inc. |
240 |
| New
York, Susquehanna, and Western Railway |
42 |
| Wheeling
and Lake Erie Railway
Co. |
185 |
| Local
railroads |
1,576 |
| Allegheny
and Eastern Railroad |
154 |
| Delaware-Lackawanna
Railroad Co.,
Inc. |
73 |
| Everett
Railroad |
25 |
| Gettysburg
Railway Company,
Inc. |
23 |
| Hollidaysburg
and Roaring Spring
Railroad |
10 |
| Juniata
Valley Railroad Co. |
12 |
| Knox
and Kane Railroad Co. |
74 |
| Lycoming
Valley Railroad Co. |
37 |
| Maryland
Midland Railway |
0 |
| Middletown
and Hummelstown
Railroad Co. |
7 |
| New
Hope and Ivyland Railroad |
18 |
| Nittany
and Bald Eagle Railroad |
63 |
| North
Shore Railroad |
43 |
| Oil
Creek and Titusville Lines, Inc. |
59 |
| Penn
Eastern Rail Lines, Inc. |
40 |
| Pittsburgh
and Shawmut Railroad,
Inc. |
237 |
| R.J.
Corman Railroad, Pennsylvania Line |
245 |
| Reading
Blue Mountain and Northern
Railroad Co. |
327 |
| Shamokin
Valley Railroad Co. |
27 |
| Stourbridge
Railroad Co. |
25 |
| Tyburn
Railroad Co. |
2 |
| Union
County Industrial Railroad Co. |
12 |
| Wellsboro
and Corning Railroad |
23 |
| York Railway
Company |
40 |
| Switching and terminal railroads |
412 |
| Aliquippa and Southern Railroad |
5 |
| Allegheny Valley Railroad Co. |
29 |
| Brandywine Valley Railroad Company |
6 |
| C and S Railroad Corp. |
18 |
| Chestnut Ridge Railway |
6 |
| Conemaugh and Black Lick Railroad |
9 |
| Conrail, Inc. |
46 |
| East Erie Commercial Railroad |
9 |
| East Penn Railways, Inc. |
15 |
| ISS Rail, Inc. |
12 |
| Kiski Junction Railroad |
5 |
| Landisville Railroad |
1 |
| Luzerne and Susquehanna Railway Co. |
55 |
| McKeesport Connecting Railroad Co. |
2 |
| Midland Terminal Company, The |
4 |
| Monongahela Connecting Railroad Co. |
2 |
| N.D.C. Railroad Company |
1 |
| Penn-Jersey Rail Lines, Inc. |
2 |
| Philadelphia, Bethlehem, and New England Railroad |
8 |
| Pittsburgh Industrial Railroad |
42 |
| Pittsburgh, Allegheny, and McKees Rocks Railroad |
5 |
| R.J. Corman Railroad, Allentown Lines |
10 |
| Southwest Pennsylvania Railroad |
65 |
| Steelton and Highspire Railroad |
5 |
| Strasburg Railroad Co. |
5 |
| Towanda-Monroeton Shipper Lifeline |
6 |
| Turtle Creek Industrial Railroad |
11 |
| Union Railroad |
22 |
| Upper Merion and Plymouth Railroad Company |
6 |
| Canadian railroads |
503 |
| Canadian Pacific Railway |
503 |
