Based in Europe, Gallagher will act as international liaison between New Wave's US-based studio clients, while introducing the company's suite of services to the European community.
New Wave Home Entertainment president Mike Meadows will continue to run the division from Los Angeles.
'In order to support the increasing number of international film and television productions, we felt it was the opportune time to establish a foothold in this market', Meadows said.
'By expanding our services, we will not only be positioned to better serve our domestic clients, we also look forward to bringing our unparalleled creative marketing and content expertise to the global community.'
New Wave produces content across all marketing platforms, including EPKs, DVD special features, new media and television specials.
The company is currently shooting behind-the-scenes footage on a number of overseas productions, including Wanted, Harry Potter And The Half-Blood Prince, The Dark Knight, Hellboy 2, Get Smart and The Mummy: Tomb Of The Dragon Emperor.