About the data

Wisconsin Lobby Guide

The Wisconsin Lobby Guide is an independent directory of the lobbyists registered with the Wisconsin Ethics Commission and the principals they represent. It takes the public registration record and makes it something you can actually use: searchable, readable, and up to date.

Every listing comes from the Wisconsin Ethics Commission, Eye on Lobbying: Directory of Licensed Lobbyists and principals represented, 2025-2026 legislative session (2025-2026 legislative session (current licences and authorizations; surrendered licences and withdrawn authorizations excluded)). The guide currently lists 655 lobbyists and 901 principals, with 40 lobbying firms. The data was last refreshed on November 2, 2026. Source last updated: November 2, 2026.

We publish names, firms and organizations, the principals each lobbyist represents, and city and state. We never publish phone numbers, street addresses or personal email addresses.

Lobbyists can claim their listing for free to add a bio and areas of expertise. Claims are checked by hand against the official record before anything changes.

What you will find here:

• Every registered lobbyist, A to Z, with the principals they represent.
• Every principal that employs a registered lobbyist, and who lobbies for it.
• A link back to the official filing source on every profile.

To correct something, write to clerk@fiftydomes.com or claim the profile. Changes to an official filing must be made with the Ethics Commission.

The Wisconsin Lobby Guide is published by Fifty Domes LLC and is not affiliated with the State of Wisconsin. See the Privacy Policy, Terms of Service and Refund Policy.