| Business | Phone |
| A Very Private Eye Research Glendale 85308 | (623) 572-2665 |
| Select Information Svc Inc 5507 W Glenn Dr, Glendale 85301 | (623) 842-0992 |
| Cobra Co Of Arizona 17224 N 43rd Ave, Glendale 85308 | (602) 978-6010 |
| New West Investigations 5717 W Glendale Ave, Glendale 85301 | (623) 937-9676 |
| Dulman Investigations 5628 W Garden Dr, Glendale 85304 | (623) 412-8174 |
| Mark W Bush Agency 6732 W Kimberly Way, Glendale 85308 | (623) 825-4401 |
| Special Agent Detective Agency 5827 W Cholla St, Glendale 85304 | (623) 412-5969 |