The company was registered as Tube Investments in 1919, combining the seamless steel tube businesses of Tubes Ltd, New Credenda Tube (later known as Creda), Simplex and Accles & Pollock.Reynolds Tube joined the group in 1928 .
In 1987 Tube Investments acquired Armco Inc.'s European Tubing business – Fulton (UK) and Bundy Corporation (USA); then in 1991 it bought Huron Products Industries (USA).
Dowty Group was bought in 1992 and in 1996 Accles & Pollock was sold to Hay Hall Group.
Over the next few years, the Group acquired Technoflow Tube Systems (Germany), Bundy Asia Pacific, S&H Fabricating and Engineering (USA), Kenmore Italiana (Italy), Walbro Corporation (USA), and Marwal (France).
The group also owned TI Creda, a manufacturer of domestic cookers, and owned TI Chesterfield Cylinders, a manufacturer of pressurised gas cylinders for companies such as BOC and Air Products: the business was sold and the factory moved from Chesterfield to Sheffield.