| Abbreviation | Definition |
|---|---|
| BTAA | Brown-Tefeey and Associates Architects Inc. |
| BTAC | Buurabalayji Thalanyji Aboriginal Corporation |
| BTBC | Brisbane Timber Blind Company |
| BTC | Badger Truck Center |
| BTC | Bahamas Telecommunications Company |
| BTC | Battles in Time Company |
| BTC | Bermuda Telephone Company |
| BTC | Beverage Trading Company |
| BTC | Trading Corp |
| BTCL | Bangladesh Telecommunication Company Limited |
| BTCL | Bangladesh Telecommunications Company Limited |
| BTCL | Bangladesh Telecommunications Company Ltd |
| BTCL | Bengal Tecnological Corpotation Ltd |
| BTCL | Bhutan Tourism Corporation Limited |
| BTCL | Bhutan Tourism Corporation Ltd |
| BTCL | Botswana Telecommunications Corporation Limited |
| BTCL | Botswana Telecommunications Corporations Limited |
| BTCL | Botswana Telecommunicatuions Corporation Limited |
| BTD | Buckeye Traction Ditcher |
| BTDC | Bharathi Tourism Development Cooperative |