The company's headquarters were at 23 Waterloo Place, Edinburgh and its works at Cowlairs, Glasgow.
 Its capital in 1921 was £67 million.
 Besides its railway, the company also operated Clyde steamers on the River Clyde and Firth of Clyde, serving Arran and points west.
The company also acquired a 49% stake in the road haulage firm Mutter Howey.

The North British Hotel at the east end of Princes Street in Edinburgh city centre forms a prominent landmark with its high tower displaying large clocks.
It was renamed the Balmoral Hotel in the 1980s, though the old name is still shown in the stonework.

In Glasgow, the former Queen's Hotel sited in George Square next to Queen Street Station was renovated in 1905 to become the company's North British Station Hotel, with the attic converted into a fourth storey under a mansard roof.
Following nationalisation it came under British Transport Hotels until 1984 when British Rail sold the hotel, which by then was called the Copthorne Hotel.
It was later renamed the Millennium Hotel.
The company's headquarters were at 23 Waterloo Place, Edinburgh and its works at Cowlairs, Glasgow.  Its capital in 1921 was £67 million.  Besides its railway, the company also operated Clyde steamers on the River Clyde and Firth of Clyde, serving Arran and points west. The company also acquired a 49% stake in the road haulage firm Mutter Howey.
The North British Hotel at the east end of Princes Street in Edinburgh city centre forms a prominent landmark with its high tower displaying large clocks. It was renamed the Balmoral Hotel in the 1980s, though the old name is still shown in the stonework.
In Glasgow, the former Queen's Hotel sited in George Square next to Queen Street Station was renovated in 1905 to become the company's North British Station Hotel, with the attic converted into a fourth storey under a mansard roof. Following nationalisation it came under British Transport Hotels until 1984 when British Rail sold the hotel, which by then was called the Copthorne Hotel. It was later renamed the Millennium Hotel.
North British Railway