{"id":300058,"url":"https://lda.gov/api/v1/registrants/300058/","house_registrant_id":37677,"name":"AON CORPORATION","description":null,"address_1":"200 EAST RANDOLPH ST.","address_2":null,"address_3":null,"address_4":null,"city":"CHICAGO","state":"IL","state_display":"Illinois","zip":"60601","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"DANIEL SEROTA","contact_telephone":"+1 312-783-6959","dt_updated":"2026-07-30T09:59:36.217376-04:00"}