The company was established in 1828 by John Caird when he received an order to re-engine Clyde paddle-tugs.
[1] John's relative James Tennant Caird joined the company in 1831, and after leaving to work for Randolph, Elder & Co in Glasgow, rejoined the family business for good in 1838.
Also in 1828 Caird & Co re-engined the paddle steamer Industry (built in 1814 by William Fyfe of Fairlie), replacing the original single cylinder engine rated at 10 hp with a Caird single cylinder engine rated at 14 hp.
In 1845 details and drawings of Caird engines fitted in four West India Mail-Packets were published,[3] these being the "Clyde", "Tay", "Tweed" and "Teviot".
Collated records of ships built on the Clyde[4] suggest that Caird contracted out the building of the wooden hulls for these mail packets.