All lobbying filings

K&L GATES, LLP

Lobbying for COMMONWEALTH FUSION SYSTEMS LLC · Fusion energy development.

Filing 4th Quarter - Report

Reporting period

4th Quarter 2025

Oct 1 - Dec 31 · Posted Jan 19, 2026

Income

$30,000.00

What the client paid this registrant for the period.

Client based in

Massachusetts

Official filing document

Government bodies contacted 3

Energy, Dept of
HOUSE OF REPRESENTATIVES
SENATE

The chambers, agencies and offices the filer named. It does not say who inside them was contacted, or when.

Bills named in this filing 6

HR 4553
Energy and Water Development and Related Agencies Appropriations Act, 2026
S 3293
Energy and Water Development and Related Agencies Appropriations Act, 2026
HR 5441
Fusion Advanced Manufacturing Parity Act
S 3088
Fusion Advanced Manufacturing Parity Act
HR 6709
Office of Fusion Act of 2025
S 3437
Office of Fusion Act of 2025

Lobbying activity 1

Energy/Nuclear

Commercial fusion energy development and deployment - no specific legislation. H.R. 4553, S. 3293, Energy and Water Development and Related Agencies Appropriations Act, 2026 - fusion energy. H.R. 5441, S. 3088, Fusion Manufacturing Parity Act - adding fusion energy components to the 45X tax credit. H.R. 6709, S. 3437, Office of Fusion Act of 2025.

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