Guillaum W. Dubreuil: federal lobbyist

Guillaum W. Dubreuil is named as a lobbyist on federal disclosure filings for 1 client through The Csl Group, Inc.. The most recent filing naming them posted in October 2026. Issues reported include Marine/Maritime/Boating/Fisheries, Tariff (miscellaneous tariff bills), Trucking/Shipping and Trade (domestic/foreign).

Former government positions listed

Filers must list covered executive or legislative branch positions held. As filed:

• Director, External Affairs and Government Relations, CSL Group
• Director, Government Relations and External Affairs at CSL
• Director, External Affairs and Government Relations

Clients and registrants

Activity by year

Pay is not disclosed for individual lobbyists. Filings do not confirm that records with the same name are one person, so this page may combine people who share the name Guillaum W. Dubreuil. See the Capitol Clarity rankings and method.