| Business | Phone |
| Daniel D White Architects 1290 Center Court Dr, Covina 91724 | (626) 332-1981 |
| Facade Design 151 E Rowland St, Covina 91723 | (626) 339-2607 |
| Grand Architect Inc 1272 Center Court Dr # 201, Covina 91724 | (626) 332-8518 |
| Kent C K Wu 1274 Center Court Dr # 211, Covina 91724 | (626) 966-4975 |
| Chien Yeh 1274 Center Court Dr # 211, Covina 91724 | (626) 331-2819 |