R
- Rail and River Coal Company
- Rainy River Bridge Company
- Railroad Credit Corporation
- Railway Express Agency, Incorporated
- Realty Assets Company
- Red River Valley Railway
- Reid Newfoundland Company
- Restigouche and Victoria Colonization Railway
- Restigouche and Victoria Railway
- Restigouche and Western Railway
- Rouyn Mines Railway
- Rutland and Burlington Railroad
- Rutland Railroad
Read more about this topic: List Of Canadian National Railways Companies