RICHFIELD, Ohio, June 9, 2010 (GLOBE NEWSWIRE) -- National Interstate Corporation (Nasdaq:NATL) today announced that management will make a presentation at the upcoming Macquarie Small- & Mid- Cap Conference on Wednesday, June 16, 2010 at 9:00 am EDT. The conference is being held at the Le Parker Meridien hotel in New York City on June 15-16, 2010. The presentation may include forward-looking and other material information. 

The presentation will be broadcast live over the Internet and may be accessed by visiting our Investor Relations website at http://invest.NATL.com .

About National Interstate Corporation

National Interstate Corporation (Nasdaq:NATL), founded in 1989, is a specialty property and casualty insurance holding company with a niche orientation and focus on the transportation industry. We differentiate ourselves by offering insurance products and services designed to meet the unique needs of targeted insurance buyers. Our products include insurance for transportation companies, alternative risk transfer, or captive insurance programs for commercial risks, specialty personal lines consisting of insurance products focused primarily on recreational vehicle owners and small commercial vehicle accounts, and transportation and general commercial insurance in Hawaii and Alaska. We offer our insurance products through multiple distribution channels including independent agents and brokers, affiliated agencies and agent Internet initiatives. Our insurance subsidiaries are rated "A" (Excellent) by A.M. Best Company. Headquartered in Richfield, Ohio, National Interstate is an independently operated subsidiary of Great American Insurance Company, a property-casualty subsidiary of American Financial Group, Inc. (NYSE:AFG) (Nasdaq:AFG).
CONTACT: National Interstate Corporation         Tanya Inama         877-837-0339         investorrelations@nationalinterstate.com