The National Philharmonic Orchestra, a renowned ensemble known for its film score recordings and standard repertoire performances, was formed as a recording entity in London under producer Charles Gerhardt in the 1960s. Initially comprised of freelance and London-based musicians, the orchestra gained acclaim for its collaborations with major conductors and its exceptional film score recordings released on various labels. Over the years, the National Philharmonic Orchestra worked on numerous projects, including iconic film scores by composers such as Max Steiner, Bernard Herrmann, and John Williams, before disbanding in the late 1990s due to changing market conditions and the shifting landscape of the classical music industry.

Following its inception as an RCA recording orchestra, the National Philharmonic Orchestra, spearheaded by Charles Gerhardt, evolved into a versatile ensemble that collaborated with renowned conductors and excelled in film score recordings. From its beginnings in the early 1960s, the orchestra worked on a multitude of projects, showcasing its prowess in both classical and cinematic music. However, as market dynamics changed in the late 1990s, the orchestra disbanded after a successful and illustrious 25-year run, marking the end of an era in London's rich orchestral tradition.