World CTL 2009 Attendance
The following organizations will be represented:
| Accelergy | Livingston Group |
| ADW | Leonardo Technologies |
| Aker Construction | Loesche |
| Arca Valves | LPP Combustion |
| Arch Coal | Lurgi |
| Argonne | MAN DWE |
| Argus | Massachusetts Institute of Technology |
| Australian Energy Company | MCI |
| Axen Consulting | Ministry of Mineral Resources and Energy, Mongolia |
| Axens | Mitsubishi Heavy Industries |
| Baard Energy | MPR Associates |
| Baker Botts | National Coal Council |
| Black & Veatch | National Energy Technology Laboratory, US DOE |
| Botswana Technology Centre | National Mining Association, USA |
| BP | National Research Council of Canada |
| CH2M HILL | National Research Council Panel, USA |
| Chadbourne & Parke | New Hope Corporation |
| Chevron | NKF Consulting |
| Citizens for Affordable Energy | NovelEdge Technologies |
| CoalinQ | NuCoal Energy |
| ConocoPhillips | Omega Energy |
| Consol Energy | Ormat |
| DCJM | Peabody Energy |
| Defense Logistics Agency | Princeton University |
| Delta Regional Authority | Raffaniello & Associates |
| Denbury Resources | Rand Corporation |
| Department Of Energy, USA | Red Mountain |
| DKRW Advanced Fuels | Rentech |
| EDF | Saint Consulting |
| Emerson | Samsung |
| Energy & Environmental Research Center, North Dakota | Sasol |
| Energy Industries of Ohio | Schlumberger |
| Energy Information Administration | Secure Energy |
| Energy Publishing | Shenhua |
| Environment Business International | Siemens |
| Environment Protection Agency, USA | Sojitz |
| ExxonMobil | Spitfire Oil |
| FdP Consulting | State of West Virginia |
| Feluwa Pumpen | State of Wyoming |
| Foster Wheeler | Total |
| French-American Chamber of Commerce | TMS |
| GE Energy | Transgas Development Systems |
| Green Source Energy | Tyotek |
| GTI | Uhde |
| Haldor Topsoe | Universitad Nacional, Bogota |
| Hart Energy | University of Alaska |
| Hatch | UTC |
| Headwaters | U.S. Air Force |
| Heyl & Patterson | U.S. Department of the Interior |
| Idaho National Laboratory | U.S. Military Academy at West Point |
| IFP | Veolia Water |
| Illinois Clean Coal Institute | West Virginia Division of Energy |
| Indian Oil | West Virginia State Government |
| International Development Corporation of South Africa | West Virginia University |
| Investec | Westinghouse Plasma |
| Japan Oil, Gas and Metals | WestLB |
| Johns Hopkins University | World Coal Institute |
| Johnson Matthey | World Petroleum Council |
| Kinetic Group | Wyoming State Government |
| Linc Energy |