During this time Masons have grown globally as well as nationally, working with companies all leading in their fields. Through the years Mason Engineers continue to stand for honest, reliable and affordable engineering which has led to them creating relationships and a reputation that allows them to continue what they love to do. They send only their best employees out to fit the needs their clients require.
In the early 1920s, the Mason Brothers started a shipbuilding and boiler making business at Port Chalmers in the South Island of New Zealand. Seven years later they moved to Auckland where Mason Bros. Engineering Limited commenced operations. Masons grew to become the largest engineering operation in the country. It specialised in large scale fabrication work, shipbuilding and ship repairs.
Through the 60s and early 70s, the company embarked on a programme of expansion which resulted in the acquisition of a number of subsidiary companies. In 1972 the enlarged company and its subsidiaries were restructured into a corporate grouping under Mason Industries Limited. Mason Engineers Limited continued to trade as a component entity within the group, but physical involvement in a larger scale fabrication on a general contracting basis was reduced as increasing emphasis was placed on design and project engineering. This trend continued after the acquisition of the Mason Group by Ceramco in 1978.
In the 1980s the Mason companies became more dedicated to particular spheres of operation and today some of them continue in their chosen roles. Mason Engineers Limited has absorbed some of the former companies into its ranks where their specialist skills are compatible with chosen endeavours for the future.
In 1986 Masons became part of the Cory-Wright and Salmon Group. Then in 1987 it became privately owned and has retained ever since.