SAN MATEO, Calif., July 18, 2019-- Sierra Ventures, an early-stage technology focused venture capital firm, announced today that they have closed their twelfth investment fund, raising $215 million. This fund was oversubscribed and the prior fund's institutional investors increased their commitment to the new fund. "We are very appreciative of the continued support we have received in Sierra XII from our existing investors, as well as excited to add some leading Limited Partners in this fund.