[1] In 1905, the NY&S was leased to NYNH&H subsidiary Consolidated Railway (of Connecticut), which in turn controlled the Greenwich Tramway Company via stock transfer effective December 29, 1904, and outright purchase of property and franchises on September 19, 1905.

In the 1920s, management of the streetcar line was transferred to the New York, Westchester and Boston Railway, another subsidiary of the New Haven.

The County Transportation Company was formed as a subsidiary of NY&S in 1925 to replace some streetcar lines with bus operation.

In 1928, the NYW&B acquired control of Soundview Transportation Company, which served bus routes in White Plains.

Sometime after the NYW&B declared bankruptcy, control of the New York and Stamford and County Transportation was returned to the New Haven.