Rostron Parry, the London-based financial PR and strategic consultancy, has appointed Patrick Birley as non-executive deputy chairman. Birley brings to the team many years of experience in the exchange-traded, clearing and environmental marketplaces, where he has held leading positions such as senior adviser for London Stock Exchange, chief executive officer of both the European Climate Exchange and LCH.Clearnet, as well as senior positions at the London Metal Exchange, FTSE Group and the South African Futures Exchange.