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William Sell

William Sell

Managing Partner, Advisor Communications
Bill has over 36 years in events and media management. As Managing Partner of Advisor Communications he’s been counsel to several media and event companies in the book industry, biotechnology, college entrance counseling, high tech trade shows, broadcasting, shipping, fine arts and marketing services. Currently he also heads up event development for the Massachusetts Convention Center Authority, the first venue organization in the US to actively create their own conferences and tradeshows. Bill’s past leadership experience includes seven years as Vice President and General Manager of COMDEX in Las Vegas (the then most significant trade show in America), the development and launch of CeBIT America, and Pulvermedia as publisher of VON Magazine and GM of VON Events with responsibilities for audience development, program creation and event sponsorships and sales. Bill also served as the Vice President of Events with Fidelity Investment’s Fidelity Capital/Seaport World Trade Center Boston; and as VP of Planning and Development at IDG’s World Expo, with ComNet and MacWorld Expo as two of the key product groups. A frequent industry speaker on benefits of face-to-face marketing, Bill is a founding member of the Society of Independent Show Organizers and past chair of the New England chapter of the International Association for Exhibitions and Events.


  • “Without a doubt the most valuable three days of the year for networking, learning, and meeting colleagues.”
    Tony Calanca, Calanca & Associates LLC
  • “Two of the best acquisitions Access Intelligence had executed came directly from contacts and discussions held at the SISO CEO Summit. Beyond that important networking for transactions, I learn best practices from the best in the industry. The ROI for membership is immeasurable.”
    Don Pazour, CEO, Access Intelligence
  • “The impact of SISO is so much bigger than its size. It feels more like a global council of important tribes than a traditional trade association.”
    David Adler, CEO & Founder, Bizbash Media
  • “Our industry thrives on the personal relationships that face-to-face builds, and the CEO Summit is the ultimate place to build YOUR network!”
    Tom Mitchell, President, Messe Dusseldorf North America
  • “As busy, independent, for-profit organizer, SISO keeps our company connected to all the key players working in this industry and allows great relationships and ongoing learning of best practices from the best in the business. All invaluable assets to help move our business forward."
    Howard Hauben, CEO, H2 Events
  • “The SISO membership represents the entire for-profit tradeshow community and the annual SISO conferences are must-attend events for their educational and networking value.”
    Joel A. Davis, Founder & CEO, JD Events
  • Being a member of SISO has allowed me to navigate the dynamic landscape of our industry in the most effective way possible. Personally, it’s been a journey of continuous learning, networking, and collaboration that fosters deep relationships with industry leaders. Professionally, the insights I’ve gained, the resources I have accessed, and the collaborative initiatives and advocacy work have helped to take my organization to new heights. SISO, to me, is an indispensable asset for my career and business.
    Liz Irving, President, Clarion Events