| Senator Don Harmon | President of the Senate - 39th Senate District | 217-782-8176 |
| Senator Omar Aquino | Majority Caucus Whip - 2nd Senate District | 217-782-5652 |
| Senator Christopher Belt | 57th Senate District | 217-782-5399 |
| Senator Scott Bennett | 52nd Senate District | 217-782-2507 |
| Senator Jennifer Bertino-Tarrant | 49th Senate District | 217-782-0052 |
| Senator Melinda Bush | 31st Senate District | 217-782-7353 |
| Senator Cristina Castro | 22nd Senate District | 217-782-7746 |
| Senator Jacqueline Y. Collins | Deputy Majority Caucus Chair - 16th Senate District | 217-782-1607 |
| Senator Rachelle Crowe | 56th Senate District | 217-782-5247 |
| Senator Thomas Cullerton | 23rd Senate District | 217-782-9463 |
| Senator Bill Cunningham | President Pro Tempore - 18th Senate District | 217-782-5145 |
| Senator Laura Ellman | 21st Senate District | 217-782-8192 |
| Senator Sara Feigenholtz | 6th Senate District | 217-557-0523 |
| Senator Laura Fine | Majority Caucus Whip - 9th Senate District | 217-782-2119 |
| Senator Ann Gillespie | 27th Senate District | 217-782-4471 |
| Senator Suzy Glowiak Hilton | 24th Senate District | 217-782-8148 |
| Senator Napoleon Harris III | Majority Caucus Whip - 15th Senate District | 217-782-8066 |
| Senator Michael E. Hastings | Majority Caucus Whip - 19th Senate District | 217-782-9595 |
| Senator Linda Holmes | Assistant Majority Leader - 42nd Senate District | 217-782-0422 |
| Senator Mattie Hunter | Majority Caucus Chair - 3rd Senate District | 217-782-5966 |
| Senator Emil Jones III | 14th Senate District | 217-782-9573 |
| Senator Patrick Joyce | 40th Senate District | 217-782-7419 |
| Senator Dave Koehler | Assistant Majority Leader - 46th Senate District | 217-782-8250 |
| Senator Steven M. Landek | 12th Senate District | 217-782-0054 |
| Senator Kimberly A. Lightford | Senate Majority Leader - 4th Senate District | 217-782-8505 |
| Senator Terry Link | 30th Senate District | 217-782-8181 |
| Senator Andy Manar | 48th Senate District | 217-782-0228 |
| Senator Iris Y. Martinez | Assistant Majority Leader - 20th Senate District | 217-782-8191 |
| Senator Robert Martwick | 10th Senate District | 217-782-1035 |
| Senator Pat McGuire | 43rd Senate District | 217-782-8800 |
| Senator Julie Morrison | 29th Senate District | 217-782-3650 |
| Senator Antonio Munoz | Assistant Majority Leader - 1st Senate District | 217-782-9415 |
| Senator Laura Murphy | Deputy Majority Leader - 28th Senate District | 217-782-3875 |
| Senator Robert Peters | 13th Senate District | 217-782-5338 |
| Senator Elgie R. Sims, Jr. | 17th Senate District | 217-782-3201 |
| Senator Steve Stadelman | 34th Senate District | 217-782-8022 |
| Senator Heather Steans | 7th Senate District | 217-782-8492 |
| Senator Patricia Van Pelt | 5th Senate District | 217-782-6252 |
| Senator Celina Villanueva | 11th Senate District | 217-782-5304 |
| Senator Ram Villivalam | 8th Senate District | 217-782-5500 |
| General Information | Chicago | 312-814-2075 |
| Springfield | 217-782-2728 |