Business to Business Telemarketing

I need a telemarketer to cold call Martial Arts schools, Gyms, Fitness Club and related businesses. I own a referral service that is completely 100% free for these companies to use. I need cold calls made to all 50 states with a focus in major cities and towns. Businesses will be directed to sign-up through our website which takes about 5 minutes or less to do. We currently have over 30 member gyms and the program has been easy to sell on our own. I now need outside help as this is getting to big for me but should be easy for an experienced telemarketer.