The lunchtime talks take place on Thursdays (1:05-1:40pm) at:
The Swiss Church, 79 Endell Street, London, WC2H 9DY
We meet to pray every Wednesday (8:00 coffee, 8:15 start, 8:45am finish) at:
Café Eterno, 1 Nottingham Court, London, WC2H 9AY (use the back entrance on Nottingham Court)
Not close enough?
There are a number of similar talks across London. A good list can be found on the Gospel at Work website.