Parnassus Investments is the largest pure-play responsible investment mutual fund company in the United States. We seek to build wealth responsibly for long-term investors by investing in businesses with increasingly relevant products or services, sustainable competitive advantages, quality management teams and ethical business practices. We have incorporates rigorous environmental, social and governance (ESG) criteria into our investment process since our firm's founding in 1984.
Our firm was named by Morningstar as a top fund company to partner with in the decade ahead and our business growth reflects it. Our team members are typically long tenured, sharing in a professional, vibrant culture emphasizing principles, teamwork and continuous learning. Our tight knit collaborative firm has consistently won awards for our great workplace.