Atsushi Sakai studied cello with Harvey Shapiro and obtained a unanimous premier prix, along with the Jean Brizard Prize at the Paris Conservatoire in Philippe Muller's class. Fascinated by the viola da gamba and period cello at an early age, he was taught by Christophe Coin in the advanced cycle at the Conservatoire at the same time.
He is often to be found as a continuo player in ensembles such as Les Talens Lyriques and Le Concert d'Astrée, with which he has performed in a large number of concerts and recordings.
He devotes his time to chamber music and recitals in which he plays alongside Christophe Rousset and Marion Martineau, applauded in the most prestigious venues. He is co-founder of Sit Fast (consort of viols) and the Quatuor Cambini-Paris.