Quoting a PriceWaterhouseCoopers study, Dennis Roberts (The McLean Group) told NACVA/IBA conference attendees that 67.7% of all middle market business owners are baby boomers--and 83% of these business will be sold. Who will be buying? Roll-up groups, industry consolidators, private equity groups and non-US buyers, according to Roberts. The top five industries seeing the most M&A in 2010 are banking, healthcare, financial services, information technology, and energy.