All lobbying filings

Team Hallahan LLC

Team Hallahan LLC filed a registration for The Roosevelt Group (On Behalf of Serco Inc.) on February 25, 2026.

Lobbying for The Roosevelt Group (On Behalf of Serco Inc.) · Lobbying Firm

As filed: TEAM HALLAHAN LLC for THE ROOSEVELT GROUP (ON BEHALF OF SERCO INC.).

All filings by Team Hallahan LLC · Everything The Roosevelt Group (On Behalf of Serco Inc.) has reported

Filing · LD-1 registration Registration

Reporting period

1st Quarter 2026

Jan 1 - Mar 31 · Posted Feb 25, 2026

Money reported

None

Registrations and no-activity reports carry no figure.

Client based in

District of Columbia

Official filing document

Lobbyists on this filing 1

KATE HALLAHAN New on this filing

Previously held: 2006-16, US House: Dem Clerk, Trans Approp SubCmte; 2001-06, US Senate Prof Staff, Sen Trans Approp SubCmte); 2000-01, FAA Dpty Asst Admnstr for Gov & Industry Affairs; 1997-2000, US DoT, Sr Policy Advsr; 1996-97, US DoT: Spec. Asst to the Secy.

A "covered position" is a government job the lobbyist held in the 20 years before registering, which the law requires them to name. See the revolving door for former members of Congress across all filings.

Lobbying activity 3

Aviation/Airlines/Airports

Engagement regarding air traffic controller training programs.

Budget/Appropriations

Engagement regarding air traffic controller training programs.

Transportation

Engagement regarding air traffic controller training programs.

Affiliated organizations 1

Section 6 of the LD-2: organizations that contribute to this lobbying or take an active part in directing it. On a trade association's filing, this is where its backers appear.

SERCO INC.

Herndon, Virginia

Source: federal Lobbying Disclosure Act filing, reproduced as filed. Bills are parsed from the activity descriptions.