Vincent replaces Jane Adley, who is joining parent company The Royal Bank of Scotland as corporate comms manager.
Angel Trains leases rolling stock for passenger and freight operators.
It owns 42 per cent of all rolling stock in the UK. With train operating companies only having seven-year franchises, it suits them to lease stock rather than buy.
One of Vincent's major challenges will be to help expand the company into the Continent. Joining at the end of the month, she will report to MD Haydn Abbott.