OTC ranks among the largest 200 trade shows held annually in the United States and is among the 10 largest meetings in terms of attendance. Attendance consistently exceeds 50,000, and more than 2,000 companies participate in the exhibition. OTC includes attendees from around the globe, with more than 110 countries represented at recent conferences.
OTC is sponsored by 12 industry organizations and societies, who work cooperatively to develop the technical program each year. OTC also has two endorsing organizations and six supporting organizations.
OTC is governed by a Board of Directors made up of 13 representatives, 11 from OTC's sponsoring organizations and two from OTC's endorsing organizations.
OTC is organized and operated exclusively to promote and further the advance of scientific and technical knowledge of offshore resources and environmental matters.