| A M P Tree Service INC | Michael Joseph Pacelli | — | (909) 931 0111 | Tree | Upland · San Bernardino County | — | — |
| A-1 Tree Service | Joseph Eugene Rogers | — | (760) 983 1933 | Tree | Hesperia · San Bernardino County | — | — |
| Absolute Tree Service Inc. | Absolute Tree Service Inc. | — | (909) 586-8150 | Tree | Crestline · San Bernardino County | — | — |
| AC Tree Service INC | Elvira Carolina Clemente | — | (909) 380 6110 | Tree | Rialto · San Bernardino County | — | — |
| Acosta Corporation | Joaquin Andres Acosta | — | (909) 866 9634 | Tree | Big Bear Lake · San Bernardino County | — | — |
| Affordable Services | Carlos Castilla | — | (562) 694 2449 | Tree | Ontario · San Bernardino County | — | — |
| Aid Tree Care Corp | Ariana R Perez | — | (909) 381 0469 | Tree | Rialto · San Bernardino County | — | — |
| Alejandros Tree Service | Alejandros Tree Service | — | (909) 694-8945 | Tree | Rialto · San Bernardino County | — | — |
| Alfonso's Tree Service INC | Lopez Alfonso | — | (909) 633 8715 | Tree | Chino · San Bernardino County | — | — |
| All American Tree Service | William James Newbiggin | — | (760) 669 6530 | Tree | Phelan · San Bernardino County | — | — |
| All Of The Above Tree Services | Corey Joe Foye | — | (909) 693 0516 | Tree | Crestline · San Bernardino County | — | — |
| All State Tree Care | Leticia Aguayo | — | (909) 327 5529 | Tree | San Bernardino · San Bernardino County | — | — |
| American Tree Company | Mathew Thomas| Day Matt Day | — | (760) 503 9000 | Tree | Apple Valley · San Bernardino County | — | — |
| Amp Abatement | Amp Abatement | — | (909) 219 1725 | Tree | Running Springs · San Bernardino County | — | — |
| Anthony's Tree Service INC | Lascano Isidoro | — | (909) 227 0056 | Tree | Chino · San Bernardino County | — | — |
| Apex Tree Care Professionals | Armando Davalos | — | (323) 314 2936 | Tree | San Bernardino · San Bernardino County | — | — |
| Armando's Tree Service | Armando's Tree Service | — | (909) 574-6063 | Tree | Rialto · San Bernardino County | — | — |
| Arturo's Tree Service INC | Nereida Limon | — | (909) 920 4258 | Tree | Upland · San Bernardino County | — | — |
| Ayala's Tree Service L P | Jesus Arleni Ayala | — | (909) 936 1123 | Tree | Rialto · San Bernardino County | — | — |
| B R Tree Services. | B R Tree Services. | — | (909) 240-5544 | Tree | Crest Park · San Bernardino County | — | — |
| Bear Valley Tree Care INC | Joshua Theodore Rheingans | — | (909) 584 7862 | Tree | Big Bear Lake · San Bernardino County | — | — |
| Brad Kaiser INC | Bradley John Kaiser | — | (760) 981 9574 | Tree | Hesperia · San Bernardino County | — | — |
| Bradco Environmental | Tracey Leigh Bauder | — | (888) 447 4354 | Tree | Crestline · San Bernardino County | — | — |
| Brandon's Tree Service | Brandon's Tree Service | — | (909) 231-5824 | Tree | San Bernardino · San Bernardino County | — | — |
| C & M Tree Service | Robert Eugene Carlton | — | (760) 365 5852 | Tree | Yucca Valley · San Bernardino County | — | — |
| C Smith Transport INC DBA C S T Organic Recycling | Scot Philip Smith | — | (909) 794 3476 | Tree | Redlands · San Bernardino County | — | — |
| Ccl Tree Service Co | Luis Benitez | — | (909) 556 9471 | Tree | San Bernardino · San Bernardino County | — | — |
| Cody Johnstone Tree Care | Cody Johnstone Tree Care | — | (707) 502 8624 | Tree | Running Springs · San Bernardino County | — | — |
| Cota's Tree Service INC | Elwin Noel Inzunza Cota | — | (909) 208 5156 | Tree | San Bernardino · San Bernardino County | — | — |
| Cumorah Tree Service INC | James Daniel Taylor | — | (909) 336 4637 | Tree | Lake Arrowhead · San Bernardino County | — | — |
| Dale's Tree Service | Dale Duane Boice | — | (909) 982 5794 | Tree | Upland · San Bernardino County | — | — |
| Dannys' Tree Service | Danny Ray Campbell | — | (909) 864 3292 | Tree | Angelus Oaks · San Bernardino County | — | — |
| Dmr Tree Service | Daniel Manuel Ramos-Lopez | — | (909) 437 6757 | Tree | Chino Hills · San Bernardino County | — | — |
| Donegan Tree Service | Garth Nyle Donegan | — | (909) 889 4304 | Tree | San Bernardino · San Bernardino County | — | — |
| Ed's Tree Service | Ed's Tree Service | — | (951) 454-6673 | Tree | San Bernardino · San Bernardino County | — | — |
| Elenes Tree Service INC | Elenes Tree Service INC | — | (909) 534-1185 | Tree | San Bernardino · San Bernardino County | — | — |
| Empire Tree Service | Carlos Cesar Armenta Cazares | — | (909) 630 4230 | Tree | Montclair · San Bernardino County | — | — |
| Endless Tree Service INC | Gastelum Leopoldo | — | (909) 709 2596 | Tree | San Bernardino · San Bernardino County | — | — |
| Fernando Tree Services | Fernando Tree Services | — | (909) 382-1246 | Tree | San Bernardino · San Bernardino County | — | — |
| Fire Risk Management Corp DBA Frm Tree Service | Oscar Dean Dykesten | — | (909) 744 4859 | Tree | Big Bear City · San Bernardino County | — | — |