| David Robinson | Forest City Tree Protection | South Euclid, OH | Contact via Email |
| Tom Dunlap | (Independent) | Dallas, TX | Contact via Email |
| David Hawkins | Urban Forestry Solutions | Pelham, MA | Contact via Email |
| Don Blair | Sierra Moreno Mercantile | Hagerstown, MD | Contact via Email |
| Sam Kezar | North American Training Solutions | Crookston, MN | Contact via Email |
| Steve Chisholm | Aspen Tree Experts | Jackson, NJ | Contact via Email |
| John Ball | South Dakota State Univ. | Brookings, SD | Contact via Email |
| Juan Torres (Spanish) | Arbor Master Training | Willington, CT | Contact via Email |
| Eduardo Medina (Spanish) | Davey Tree Experts | Chicago, IL | Contact via Email |
| Daniel Mosher | The Tree Doctor | Clarence, NY | Contact via Email |
| Steve Sprague | Carroll Tree Service, Inc | Owings Mills, MD | Contact via Email |
| Jackson Dodds | Ray Smith & Associates | Southampton, NY | Contact via Email |
| Daniel Kallai | Trees Inc. | Grants Pass, OR | Contact via Email |
| Don Coffey | Meek Tree Service | Tyrone, PA | Contact via Email |
| Brian Boisvert | Urban Tree Service | Rochester, NH | Contact via Email |
| Dr. Martha Quiroz-Romero | Holistic-Safety, Inc. | Arlington, TX | Contact via Email |
| Rich Godwin | Mead Tree & Turf Care, Inc | Woodbine, MD | Contact via Email |
| Jeff Thierbach | Victorian Gardens | Whit Lake, MI | Contact via Email |
| Gary R. Ickes, II | Ickes Tree Service | Silver Hill, AL | Contact via Email |
| Robert Mead | Mead Tree Service | Woodbine, MD | Contact via Email |
| Tim Ayers | Kramer Tree Specialist | West Chicago, IL | Contact via Email |
| Gary NaraynSingh | T&T Tree Surgeons | Tunapuna, Trinidad-Tobago | Contact via Email |
