Founded in 1998, Wheeler, Trigg, O'Donnell is a civil litigation firm located in Denver and representing clients nationwide. The firm's attorneys have defended insurance companies, individuals, and institutions against medical malpractice claims. Three of the firm's partners have tried more than 450 trial cases, 300 of which related to medical malpractice, including class actions. WTO also represents clients in commercial, employment, intellectual property, and legal professional liability cases. The firm holds an AV-Preeminent rating from Martindale-Hubbell.