| Business | Phone |
| New Haven Alternative Ed 57700 Gratiot Ave, New Haven 48048 | (586) 749-6360 |
| New Haven Board Of Education 58233 Gratiot Ave, New Haven 48048 | (586) 749-5124 |
| New Haven School Supt 58233 Gratiot Ave, New Haven 48048 | (586) 749-5123 |
| New Haven Elementary School 57701 River Oaks Dr, New Haven 48048 | (586) 749-8360 |
| New Haven High School 57700 Gratiot Ave, New Haven 48048 | (586) 749-5104 |
| High Society Building Co New Haven 48048 | (586) 749-7848 |