| Company (Alphabetical) | City | State |
| Allegan General Hospital | Allegan | Mich. |
| AtlantiCare | Egg Harbor Township | N.J. |
| Awarepoint Corp. | San Diego | Calif. |
| Baptist Easley Hospital | Easley | S.C. |
| Baptist Health South Florida | Coral Gables | Fla. |
| Baptist Hospital | Nashville | Tenn. |
| Baptist Memorial Hospital-Union City | Union City | Tenn. |
| Bright Horizons Family Solutions | Watertown | Mass. |
| Burwood Group | Chicago | Ill. |
| c|a ARCHITECTS | Long Beach | Calif. |
| CalOptima | Orange | Calif. |
| Catholic Healthcare West, System Offices | San Francisco | Calif. |
| Centegra Health System | McHenry | Ill. |
| Chandler Regional Medical Center | Chandler | Ariz. |
| Chelsea Community Hospital | Chelsea | Mich. |
| CHRISTUS St. Michael Health System | Texarkana | Texas |
| Clarient | Aliso Viejo | Calif. |
| Clark Memorial Hospital | Jeffersonville | Ind. |
| Cook Children's Health Care System | Ft. Worth | Texas |
| Corazon | Pittsburgh | Pa. |
| Doctors Hospital of Sarasota | Sarasota | Fla. |
| Emergency Medical Associates of New Jersey | Livingston | N.J. |
| Emergency Medical Association of New York | Livingston | N.J. |
| Emergency Physicians Medical Group | Roseville | Calif. |
| EMO Medical Care | Livingston | N.J. |
| EMP Management Group | Canton | Ohio |
| Encore Health Resources | Houston | Texas |
| Firelands Regional Medical Center | Sandusky | Ohio |
| Fisher-Titus Medical Center | Norwalk | Ohio |
| FreemanWhite | Charlotte | N.C. |
| Gilsbar | Covington | La. |
| Goshen Health System | Goshen | Ind. |
| Hancock Regional Hospital | Greenfield | Ind. |
| Hays Med | Hays | Kan. |
| HCA Virginia Health System-Richmond Market | Richmond | Va. |
| Henry County Hospital | Napoleon | Ohio |
| HHA Services | St. Clair Shores | Mich. |
| Holy Name Medical Center | Teaneck | N.J. |
| Iatric Systems | Boxford | Mass. |
| Idaho Emergency Physicians | Boise | Idaho |
| IMA Consulting | Chadds Ford | Pa. |
| Impact Advisors | Naperville | Ill. |
| Indiana Regional Medical Center | Indiana | Pa. |
| Intelligent InSites | Fargo | N.D. |
| Jackson Purchase Medical Center | Mayfield | Ky. |
| JSA Healthcare | St. Petersburg | Fla. |
| Kootenai Health | Coeur d'Alene | Idaho |
| Lafayette Surgical Specialty Hospital | Lafayette | La. |
| Langlade Hospital | Antigo | Wis. |
| LiquidAgents Healthcare | Plano | Texas |
| Lovelace Women's Hospital | Albuquerque | N.M. |
| MagnaCare | New York | N.Y. |
| maxIT Healthcare | Westfield | Ind. |
| McLaren Health Plan | Flint | Mich. |
| MEDecision | Wayne | Pa. |
| Memorial Healthcare System | Hollywood | Fla. |
| Mercy Gilbert Medical Center | Gilbert | Ariz. |
| Michigan Health & Hospital Association | Lansing | Mich. |
| Monroe County Hospital | Albia | Iowa |
| Nathan Adelson Hospice | Las Vegas | Nev. |
| Neosho Memorial Regional Medical Center | Chanute | Kan. |
| Palmetto Health | Columbia | S.C. |
| PAML | Spokane | Wash. |
| Pikeville Medical Center | Pikeville | Ky. |
| PinnacleHealth System | Harrisburg | Pa. |
| Poudre Valley Health System | Fort Collins | Colo. |
| Premier | Charlotte | N.C. |
| Rainbow Hospice and Palliative Care | Park Ridge | Ill. |
| Riverside Radiology and Interventional Associates | Columbus | Ohio |
| Roper St. Francis Healthcare | Charleston | S.C. |
| Rush-Copley Medical Center | Aurora | Ill. |
| Saint Francis Medical Center | Cape Girardeau | Mo. |
| Sarah Cannon Research Institute | Nashville | Tenn. |
| SCAN Health Plan Arizona | Phoenix | Ariz. |
| Senior Care | Louisville | Ky. |
| Sheltering Arms Physical Rehabilitation Centers | Glen Allen | Va. |
| Signature HealthCARE | Palm Beach Gardens | Fla. |
| South Broward Endoscopy | Cooper City | Fla. |
| Southern Ohio Medical Center | Portsmouth | Ohio |
| SSM Health Care | St. Louis | Mo. |
| St. Francis Hospital-The Heart Center | Roslyn | N.Y. |
| St. Joseph Hospital | Kokomo | Ind. |
| St. Joseph's Hospital and Medical Center | Phoenix | Ariz. |
| St. Mary Medical Center | Langhorne | Pa. |
| Sutter Davis Hospital | Davis | Calif. |
| Sutter Maternity & Surgery Center | Santa Cruz | Calif. |
| Texas Health Center for Diagnostics & Surgery | Plano | Texas |
| Texas Health-Harris Methodist Hospital Southlake | Southlake | Texas |
| The Advisory Board Company | Washington | D.C. |
| The Comprehensive Group | Glenview | Ill. |
| The Women's Hospital | Newburgh | Ind. |
| Trilogy Health Services | Louisville | Ky. |
| Union Hospital | Terre Haute | Ind. |
| Valley Emergency Physicians Medical Group | Walnut Creek | Calif. |
| Valley Medical Center | Renton | Wash. |
| VHA | Irving | Texas |
| Wamego City Hospital | Wamego | Kan. |
| Weatherby Locums | Fort Lauderdale | Fla. |
| Woman's Hospital | Baton Rouge | La. |
| Yankee Alliance | Andover | Mass. |
