PORTLAND, Ore.--(BUSINESS WIRE)--Electro Scientific Industries, Inc. (Nasdaq: ESIO), the premier source for innovative laser-based manufacturing solutions for the microtechnology industry, today announced it will be participating at three upcoming investor conferences, including: Sidoti & Company, LLC Emerging Growth Institutional Investor ForumDate: January 12, 2015Location: Grand Hyatt Hotel in New York CityPresentation Time: 10:40 a.m. ET 17th Annual Needham Growth ConferenceDate: Januar