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Thomas P. McMahon, Esq.
Jones & Keller, P.C.
Skilled Antitrust, Health Care And Complex Commercial Litigation Representation For Clients In Colorado And Nationwide.

Representative Clients And Industries


Among the business entities Mr. McMahon has represented are the following:

  • Albert Vein Institute
  • Allied, Connelly’s, Denver West, Dillon, Grumpy Dutchman, Havener’s and Ski Country towing companies
  • American Furniture Warehouse
  • American Pre-Employment Screening Services; Business Information Services
  • Aspen Healthcare Metrics; Aspen Orthopaedics & Sports Medicine; Colorado Anesthesia Consultants; Exempla Healthcare; Ft. Collins Radiologic Associates; Mesa County Physicians IPA; Namaste Comfort Care; Pikes Peak Cardiology; Primera Healthcare
  • Aspen Sports (d/b/a Base Mountain Sports); Benson Pump; Colour Editions (d/b/a King Kolor)
  • Auraria Student Housing at the Regency
  • Christy Sports
  • Associated Bodyworkers & Massage Professionals; Central Reservations Association of Destination Resorts; Central Reservations Association of Mountain Resorts; Snowmass Resort Association
  • BEAL Corp (d/b/a Beacon Laboratories); Natural Balance (d/b/a PEP Products)
  • Boulder Bump Shop; Rocky Mountain Paint & Body
  • Brunton Co.; Silva Production AB
  • City and County of Denver
  • Colorado Dental Association; Colorado Ophthalmological Society; Colorado-Wyoming Petroleum Marketers Association
  • Denver Board of Realtors; United Title of New Mexico
  • EnviroTech Services; Hillside Software; Image Data; Jetstream Systems
  • Rhodia S.A.; Rhone-Poulenc; Rockwell International
  • Spa Universaire; Vacation Tan & Travel
  • Tri-State Generation & Transmission Association
  • Wyoming Spine & Neurosurgery Associates


Mr. McMahon’s antitrust advising and litigation and other complex litigation experience has involved an extensive array of industries, such as:

  • College housing, commercial printers and ink cartridges (wide-format)
  • Computers (databases, software and systems) and consumer electronics
  • Directional compasses
  • Drivers licenses
  • Energy (electricity generation and transmission; natural gas transportation, storage, marketing, sale and distribution) and public utilities (trash hauling, waste removal)
  • Health care (cardiac surgery, cardiology, chiropractic, dentistry, general and vascular surgery, neurosurgery, obstetrics/gynecology, orthopedics, radiology) and medical technology
  • Highway construction
  • Insurance (commercial general liability and title)
  • International trade
  • Motorcycles
  • Newspapers
  • Real estate multi-list services, resort associations, and tourism (skiing, rafting)
  • Swimming pools (components, kits)
  • Telecommunications (regional telephone service) and television (cable, satellite)
  • Transportation (airlines, railroads, towing and trucking)