Inogen Alliance is a global network of independent consulting companies that are together
by choice to collaborate around the world on EHS and sustainability projects for a consistent
client experience. With offices located on every continent, more than 5,000 associates
worldwide, and projects completed in over 280 offices in more than 150 countries, Inogen
Alliance provides unparalleled coverage, consistency and 20 years of experience for a more
sustainable future. Global Thinking. Local Delivery.