State Auto Financial to Present at Small & Mid-Cap Conference

COLUMBUS, Ohio - (BUSINESS WIRE) - State Auto Financial Corporation (NASDAQ: STFC) today announced that it will be a presenting company at the Small & Mid-Cap Conference, hosted by Macquarie Capital (USA) Inc., to be held June 15-16, 2010, in New York City. State Auto Vice President and CFO Steve English, Regional President Charlie McShane, and Assistant Vice President and Director, Treasury and Finance Larry Adeleye will present an update on State Auto Financial Corporation on Tuesday, June 15 at 3 p.m. ET.

STFC’s presentation is being webcast and can be accessed at: http://cc.talkpoint.com/macq001/061510a_jc/?entity=51_L4M52U0.

State Auto Financial Corporation, headquartered in Columbus, Ohio, is a super regional property and casualty insurance holding company. The company markets its personal and business insurance products through independent insurance agencies in 34 states and the District of Columbia and is proud to be a Trusted Choice® company partner. STFC stock is traded on the NASDAQ Global Select Market, which represents the top third of all NASDAQ listed companies.

The insurance subsidiaries of State Auto Financial Corporation are part of the State Auto Group. The State Auto Group is rated A+ (Superior) by the A.M. Best Company and includes State Automobile Mutual, State Auto Property & Casualty, State Auto National, State Auto Ohio, State Auto Wisconsin, State Auto Florida, Milbank, Farmers Casualty, Meridian Security, Meridian Citizens Mutual, Beacon National, Beacon Lloyds, Patrons Mutual and Litchfield Mutual Fire. Additional information on State Auto Financial Corporation and the State Auto Insurance Companies can be found online at www.StateAuto.com.

State Auto Financial Corporation Kyle Anderson, W 614-917-5497 M        614-477-5301 Director of Media Relations