Inogen, Inc revenue for the last year amounted to 315.66 M USD, the most of which — 251.61 M USD — came from its highest performing source at the moment, Oxygen Concentrators and Related Accessories, the year earlier bringing 320.55 M USD. The greatest contribution to the revenue figure was made by United States — last year it brought Inogen, Inc 226.26 M USD, and the year before that — 276.08 M USD.