| Business | Phone |
| Cornell Ext Of Rensselaer Co 61 State St, Troy 12180 | (518) 272-4210 |
| Honorable Patrick J Mc Grath Congress St & 2nd Stamp;, Troy 12180 | (518) 270-3737 |
| Kennedy Towers Senior Svc Center 2100 6th Ave, Troy 12180 | (518) 270-5346 |
| Rensselaer Bureau Of Finance 1600 7th Ave, Troy 12180 | (518) 270-2751 |
| Rensselaer Commissioner-Jurors 80 2nd St # 29, Troy 12180 | (518) 270-3710 |
| Rensselaer County Accounting 1600 7th Ave, Troy 12180 | (518) 270-2746 |
| Rensselaer County Bldg Dept Courthouse, Troy 12180 | (518) 270-4060 |
| Rensselaer County Budget 1600 7th Ave # 5, Troy 12180 | (518) 270-2920 |
| Rensselaer County Buildings 1600 7th Ave, Troy 12180 | (518) 270-2700 |
| Rensselaer County Central Svc 1600 7th Ave # 5, Troy 12180 | (518) 270-2619 |
| Rensselaer County Courtroom 80 2nd St, Troy 12180 | (518) 270-3738 |
| Rensselaer County Elections 1600 7th Ave, Troy 12180 | (518) 270-2990 |
| Rensselaer County Employment 1600 7th Ave, Troy 12180 | (518) 270-2860 |
| Rensselaer County Executive 1600 7th Ave, Troy 12180 | (518) 270-2900 |
| Rensselaer County Heap 1801 6th Ave, Troy 12180 | (518) 270-3935 |
| Rensselaer County Legislature 1600 7th Ave, Troy 12180 | (518) 270-2880 |
| Rensselaer County Mental Hlth 1600 7th Ave, Troy 12180 | (518) 270-2800 |
| Rensselaer County Pistol Prmts 105 3rd St, Troy 12180 | (518) 270-4171 |
| Rensselaer County Pub Defender Congress St & 2nd Stamp;, Troy 12180 | (518) 270-4030 |
| Rensselaer County Research Bur 1600 7th Ave, Troy 12180 | (518) 270-2690 |
| Rensselaer County Sewer Dist Water St, Troy 12180 | (518) 283-2235 |
| Rensselaer County Supreme Ct Congress & 3rd Stamp;, Troy 12180 | (518) 270-3713 |
| Rensselaer County Surrogate's 80 2nd St, Troy 12180 | (518) 270-3724 |
| Rensselaer County Youth Dept 1600 7th Ave, Troy 12180 | (518) 270-2960 |
| Rensselaer Personnel Dept 1600 7th Ave, Troy 12180 | (518) 270-2930 |
| Rensselaer Superintendent-Bldg 1600 7th Ave, Troy 12180 | (518) 270-2702 |
| Rensselaer Veterans Svc Agency 1600 7th Ave # 4, Troy 12180 | (518) 270-2761 |