Capitol Clarity / Lobbyists / C / Sean Taylor Callahan

Sean Taylor Callahan: federal lobbyist

Sean Taylor Callahan is named as a lobbyist on federal disclosure filings for 2 clients through Hewlett Packard Enterprise Company and 1 other registrant. The most recent filing naming them posted in October 2026. Issues reported include Science/Technology, Budget/Appropriations, Defense and Homeland Security.

2Clients on filings

2Registrants

8Issue categories

2Years with reports

Former government positions listed

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

Dep. Chief of Staff & Legislative Director, Rep. Val Demings: 2022-2023; Dep. Chief of Staff, Sen. Mazie Hirono: 2016-2017; Dep. Chief of Staff, Rep. Mark Takai: 2015-2016; Senior Policy Advisor, Rep.

Clients and registrants

Client	Registrant	Latest	Issues
SB GROUP US, INC. DBA SOFTBANK GROUP US, INC.	SB GROUP US, INC. DBA SOFTBANK GROUP US, INC.	Q3 2026	Science/Technology
HEWLETT PACKARD ENTERPRISE COMPANY & AFFILIATES	HEWLETT PACKARD ENTERPRISE COMPANY	Q2 2025	Telecommunications, Trade (domestic/foreign), Budget/Appropriations

Activity by year

Year	Clients	Registrants
2026	1	1
2025	2	2

Contributions reported on Form LD-203

Year	Items	Total
2026	4	$2K

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 Sean Taylor Callahan. See the Capitol Clarity rankings and method.