Refer to the input text as context and select the correct relationship between 'Worldpay' and 'London' from the available options.
Options: owner of, subsidiary, founded by, headquarters location

French payments company Ingenico Group rose 6.8 percent as prospects it could stretch its finances to launch a bid for Worldpay evaporated on Friday when its privately-owned British rival announced plans for a London floatation, instead of a sale.
headquarters location