RS Investment Management Co. LLC, doing business as RS Investments, is a privately owned investment manager. It provides its services to pension and profit sharing plans, investment companies, pooled investment vehicles, endowments, foundations, high net worth individuals, corporations, and banks. The firm manages separate client-focused equity and fixed income portfolios. It also manages mutual funds for its clients. The firm invests in the public equity and fixed income markets across the globe. It invests in growth and value stocks of small-cap, mid-cap, and large-cap companies. The firm employs a fundamental analysis to create its portfolio. It conducts in-house research to make its investments. The firm operates as a subsidiary of Guardian Investor Services LLC. RS Investment Management Co. LLC was founded in 1986 and is based in San Francisco, California with an additional office in New York.