Sphere offers a climate-friendly investment platform specifically for 401(k) retirement plans. Its main product, the Sphere 500 Climate Fund, allows employees to invest their retirement savings in a diversified portfolio that excludes fossil fuel companies, aligning with their environmental values. Sphere differentiates itself from competitors by focusing solely on sustainable investment options and providing tools like AtmoSphere, which helps companies measure and reduce the carbon emissions linked to their retirement plans. The goal of Sphere is to empower employees and companies to make environmentally responsible investment choices while enhancing corporate benefits.