A & G Price Limited is an engineering firm and locomotive manufacturer in Thames, New Zealand, established in 1868. In 2004 a precision formed yacht keel division was formed to make the Maximus canting keel. The firm currently has 135 employees.
The firm was established in 1868 in Princes Street, Onehunga by two brothers from Stroud, Gloucestershire; Alfred Price (1838-1907) and George Price (1843-1917). They built almost 100 flax machines in their first year.
In the 1930s the firm hired Abner Doble to help them develop a steam engine for buses at the Thames workshops. The first engine was trialed by the Auckland Transport Board in the early 1930s. A second bus was constructed in 1932 for White and Sons for the Auckland Thames route.
A & G Price was the largest private New Zealand railway locomotive manufacturer, both in terms of output and in terms of supply of rolling stock to the New Zealand Government Railways (NZGR or NZR) and other firms.
Price manufactured 22 carriages and wagons in the early 1870s, and manufactured two locomotives in the 1880s for private industry, the first being a 0-4-0ST Saddle Tank type locomotive. The Thames Branch railway line opened in 1898, and Price won a tender to make locomotives for NZR in 1903 and 1906 (Wright page 106). Later in the 1950s and 1960s they manufactured a number of diesel shunting locomotives for the NZR, the TR class, and some for private users.
In 1990 A & G Price regauged 24 of the 31 Silver Star carriages to metre gauge (1000 mm) for running in Malaysia Singapore and Thailand as the Eastern and Oriental Express. Six carriages from this train were stored at Price's Thames workshop in case any extra carriage conversions were required, with the remaining carriage shipped to SE Asia but not refurbished. As of 2013, these carriages remained on-site at Thames, five of which are listed on the New Zealand Rolling Stock Register page for NZR passenger carriages.