| HOUSE LEADERS Room and phone numbers are for offices in the Statehouse in Springfield. |
| Speaker of the House Michael J. Madigan | 316 | (217) 782-5350 |
| Majority Leader Jim McPike | 314 | (217) 782-5996 |
| Assistant Majority Leader Carol Moseh Braun | 109 | (217) 782-3201 |
| Assistant Majority Leader E.J. "Zeke" Giorgi | 314 | (217) 782-3167 |
| Assistant Majority Leader [position vacant on January 13, 1988] |
| Assistant Majority Leader John S. Matijevich | 612 | (217) 782-8122 |
| Majority Whip Peg McDonnell Breslin | 312 | (217) 782-5109 |
| Majority Whip Ralph C. Capparelli | 109 | (217) 782-8198 |
| Democrat Conference Chair Frank Giglio | 109 | (217) 782-8077 |
| Minority Leader Lee A. Daniels | 300 | (217) 782-4014 |
| Assistant Minority Leader Thomas Ewing | 300 | (217) 782-8158 |
| Assistant Minority Leader John Hallock | 300 | (217) 782-3940 |
| Assistant Minority Leader Gene Hoffman | 300 | (217) 782-8107 |
| Assistant Minority Leader Penny Pullen | 300 | (217) 782-7325 |
| Minority Whip Jane Barnes | 300 | (217) 782-8186 |
| Minority Whip Robert Churchill | 300 | (217) 782-8151 |
| Republican Conference Chair Fred Tuerk | 634 | (217) 782-8108 |
| Clerk of the House: John F. O'Brien | 115 | (217) 782-8223 |
| Assistant Clerk of the House: Tony Leone | 115 | (217) 782-5799 |
| House Bill Room: | 402 | (217) 782-5799 |
