PORTLAND, Ore.--(BUSINESS WIRE)--Electro Scientific Industries, Inc. (Nasdaq: ESIO), an innovator of laser-based manufacturing solutions for the microtechnology industry, today announced it will be presenting at the B. Riley & Co. 16th Annual Investor Conference taking place May 12-14, 2015, at the Loews Hollywood Hotel in Hollywood, California. ESI’s presentation, focusing on the company’s strategy and financial performance, will begin at 10:30 a.m. Pacific Time on May 14. About ESI, Inc.