In addition to international commitments, Warren-Green has been honoured to conduct regularly for the British Royal family at events including the wedding services of H.M. King Charles III and H.M. Queen Camilla, T.R.H. The Prince and Princess of Wales and the Duke and Duchess of Sussex. Warren-Green conducted London Chamber Orchestra occasion of Her late Majesty Queen Elizabeth II​’s 80^th birthday and Philharmonia Orchestra for Her late Majesty Queen Elizabeth II​’s 90^th birthday concert at Theatre Royal, Drury Lane, as well as H.M. King Charles​’s 60^th birthday concert in Buckingham Palace and on other Royal occasions. 

As a conductor he has recorded extensively for Sony, Philips, Virgin, EMI, Chandos, Decca, Deutsche Gramophone, and records with the London Chamber Orchestra for Signum Classics.

As a soloist he has recorded Mendelssohn Mozart and Vivaldi concerti and appeared as soloist extensively in Europe most notably with Academy of St. Martin-in-the Fields in Berlin Philharmonie.

Warren-Green began his career at the age of seventeen, and at the age of twenty-one, was named Concertmaster of BBC National Orchestra of Wales, followed by Philharmonia Orchestra under Riccardo Muti. At age twenty-five, Warren-Green became concertmaster of the Academy of St. Martin-in the-Fields under Sir Neville Marriner. He has served as a juror for many international competitions including the Prague Spring Conducting, the Wieniawski Violin, and Hong Kong Piano competitions. He is a Fellow of the Royal Academy of Music, having been a professor there for eight years, and has appeared and presented numerous times on television and radio, most notably for the BBC Proms.