Listings include organizations, headquarters, and number of attendees expected, as estimated by the Toledo-Lucas County Convention & Visitors Bureau:
April 18-29 - Owens Illinois, Holiday Inn French Quarter, 12, corporate.
April 18-20 - Rockwell Automation, Radisson Hotel, 400, regional.
April 19-24 - PetMassage Training & Research Institute, Clarion Westgate, 20, regional.
April 20-22 - Ohio Middleschool Association, Radisson Hotel, 750, state.
April 21-24 - Northwest Ohio Dietary Managers Association, Holiday Inn French Quarter, 100, state.
April 21-23 - YWCA SANE Training, Wyndham Hotel, 30, regional.
April 22-24 - North American Youth Sports Basketball Tournament, Days Inn Maumee/Toledo, 300, regional.
April 22-24 - The Forty Frame Game Bowling Tournament, Clarion Westgate, 250, regional.
April 22-24 - Toastmasters District No. 28, Hilton Hotel, 100, regional.