| Business | Phone |
| Titan Aerospace Electronics 470 Totten Pond Rd, Waltham 2451 | (781) 890-4200 |
| Nap Commercial Electronic Corp 580 Winter St, Waltham 2451 | (781) 466-1400 |
| Radio Shack 110 River St, Waltham 2453 | (781) 899-0460 |
| Radio Shack 852 Lexington St, Waltham 2452 | (781) 899-4620 |
| Radio Shack 922 Main St, Waltham 2451 | (781) 893-7020 |
| Electronics 400 5th Ave, Waltham 2451 | (781) 890-0891 |