# Illinois Lobby Guide

> Public record, made usable. Search registered Illinois lobbyists, the clients they represent and their firms, from the official public record.

Publisher: Fifty Domes LLC (https://fiftydomes.com). Contact: clerk@fiftydomes.com.
Data source: Illinois Secretary of State, Lobbyist Division: Lobbyist Entity Client Data (Illinois Data Portal, updated daily), 2026 registrations (https://www.ilsos.gov/departments/index/lobbyist/lobbyist_search.html).
Last refreshed: November 9, 2026.
Refresh cadence: refreshed manually from the official source; every page shows the date of the last refresh.
Privacy: street addresses, phone numbers and personal email addresses are never published.

## Key pages

- [Home](https://illobbyguide.com/): overview and search
- [Lobbyists](https://illobbyguide.com/lobbyists/): 2264 registered lobbyists
- [Clients and employers](https://illobbyguide.com/principals/): 2461 organizations represented
- [Lobbying firms](https://illobbyguide.com/firms/): 380 firms
- [Search](https://illobbyguide.com/search/?q={query}): search lobbyists, clients and firms by name or city
- [Get Featured](https://illobbyguide.com/featured/): paid Featured listings for verified profiles ($39/month or $299/year). Featured profiles are always labeled “Featured”; payment never changes the public-record data or the order of regular search results.
- [Subscribe](https://illobbyguide.com/subscribe/): early-access list for full access (free to join, not a purchase)
- [Photo credits](https://illobbyguide.com/credits/): image credits and licences

## URL patterns

- Lobbyist: https://illobbyguide.com/lobbyists/{slug}/
- Client or principal: https://illobbyguide.com/principals/{slug}/
- Firm: https://illobbyguide.com/firms/{slug}/

## Related

- [Illinois Capitol Guide](https://ilcapitolguide.com/)
- [About the data](https://illobbyguide.com/about/)
- [Sitemap](https://illobbyguide.com/sitemap.xml)