http://www.ioc.state.il.us/
Comptroller, Office of the
The Comptroller is charged, by the terms of Section 17 of Article V of the Constitution of Illinois, with the duties of: (a) maintaining the central fiscal accounts of the state, and (b) ordering payments into and out of the funds held by the Treasurer of Illinois. In accordance with this duty, the Comptroller signs paychecks or grants approval to electronic payments made by the state to its employees and creditors.[6] The Comptroller is also charged, by Illinois statute, with certain additional duties. In particular, the Comptroller regulates cemeteries under the Cemetery Care Act, and is charged with the fiduciary protection of cemetery care funds used for the care and maintenance of Illinois gravesites.
http://illinoiscomptroller.gov/contact/

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https://www2.illinois.gov/services/IOC/employee-salary-database
Employee Salary Database
The Employee Database tracks salary information on state employees from the current year as well as previous years. Search by agency, individual name, position, salary, or even year of service
https://www2.illinois.gov/services/IOC/annual-financial-report-local-government-units
Annual Financial Reports for Local Government Units
Annual Financial Reports are self-reported financial records, summarizing the revenues, expenditures, fund balance and debt of units of local government throughout the state.
https://www2.illinois.gov/services/IOC/state-contracts
State Contracts
The information made available in this database comes directly from the Comptroller's records center. This live database is meant to provide a better understanding of where state tax dollars go, and which non-governmental organizations have contracts with the State of Illinois.
https://www2.illinois.gov/services/IOC/state-expenditures
State Expenditures
The expense database allows taxpayers to see how public dollars are spent. Information provided by the Illinois Office of the Comptroller allows users to identify any state spending