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© 2026 Adaptrex, LLC

Spending
Lobbying
Coming soon: Congress, Stocks

Overview Firms Clients Revolving Door Stands Out

LD-2 disclosure · Registration

BLACKSTONE ADMINISTRATIVE SERVICES PARTNERSHIP LP

1st Quarter (Jan 1 - Mar 31) · 2025Posted Mar 26, 2025Filing document ↗LDA record ↗

Coverage · Registration filing — establishes the registrant/client relationship. No periodic income or expenses are reported at registration.

Client

Name: BLACKSTONE ADMINISTRATIVE SERVICES PARTNERSHIP LP
Description: Alternative asset manager
Location: New York · United States of America

Registrant

Firm: S2R, LLC
Location: Alexandria, Virginia, United States of America

Lobbying activities

1 issue

Taxation/Internal Revenue Code
Issues related to tax policy
LobbyistsJASON THIELMAN
Covered position (JASON THIELMAN): Chief of Staff, Transition Aide, Rep. Steve Daines; District Director, Rep. Marilyn Musgrave

Source

Source · Senate Office of Public Records — Lobbying Disclosure Act filings ↗.

Coverage gaps · LD-2 reports a single dollar figure per quarter on ONE basis — income (a fee) or expenses (self-filed spend), never both — so this page never combines them into one "spend" number.

BLACKSTONE ADMINISTRATIVE SERVICES… — Receipts Report