TI Group plc (formerly Tube Investments) was a holding company for specialised engineering companies.
It was based in Abingdon in Oxfordshire.
It 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.
In 1928 Reynolds Tube joined the group.
Tube Investments was listed on the London Stock Exchange and was a constituent of the FTSE 100 Index.