At the start of WWII he joined the Royal Army Service Corps and was evacuated from Dunkirk as a junior officer.

After service in the Middle East, he was demobilised with the rank of major and rejoined Ring and Brymer (Birch's) as a junior member of staff.

[1] Ring and Brymer (Birch's) was regarded as the most celebrated catering firm in the city of London.

Having rejoined the company in 1945, Lindsay Ring rose through the ranks and by the early 1950s he had regained control of the business.

[2] There followed an expansion of the business with additional catering franchises including Twickenham Stadium and the Farnborough Airshow.