| Business | Phone |
| Supreme Court Law Library 30 E Broad St # 4, Columbus 43215 | (614) 466-2044 |
| Ohio Dept Of Dev Research Libr 77 S High St # 27, Columbus 43215 | (614) 466-2115 |
| Ohio Dept-Public Safety Libr 1970 W Broad St # 425c, Columbus 43223 | (614) 466-4775 |
| Ohio Dept-Transportation Libr 1980 W Broad St, Columbus 43223 | (614) 466-7680 |
| Ohio Environment Epa Libr 122 S Front St, Columbus 43215 | (614) 644-3024 |
| Ohio Legislative Svc Library 77 S High St # 9, Columbus 43215 | (614) 466-5312 |