The very best way to get your message out to the industry is through Forkliftaction. The ads are not expensive (a lot cheaper than building and maintaining email lists) and they can get to every corner of the globe. You can choose your target market areas. The Forkliftaction News is read by about 200,000 people every week. 10,000 people search the Forkliftaction website daily. It really is a "no-brainer". To talk to someone contact us with an email to info at forkliftaction dot com
Don't think you will have much luck in getting a single list of e-mail addresses (like a telephone directory) for all forklift dealers. You will have to build your own. You can start by going to the lift truck manufacturers web site - most but not all have a dealer look up section - some are organized by states, some are organized by zip codes & you'll have to go to them one by one.