| Business | Phone |
| Axis America Appraisals 1411 S Diamond Bar Blvd, Diamond Bar 91765 | (909) 396-6052 |
| Carlson Appraisal 556 N Diamond Bar Blvd # 301, Diamond Bar 91765 | (909) 861-6186 |
| Edward A Mac Donald Appraiser 23417 Wagon Trail Rd, Diamond Bar 91765 | (909) 861-9134 |