| Business | Phone |
| Rent N Save Portable Signs 6 Bobs Way, Windham 4062 | (207) 893-2900 |
| Signs By Popovich 641 Roosevelt Trl, Windham 4062 | (207) 892-3255 |
| Custom Shingles Sign Co 1004 River Rd, Windham 4062 | (207) 892-7279 |
| Moonshine Signs Rt 202, Windham 4062 | (207) 892-6831 |