All lobbying filings

K&L GATES, LLP

K&L GATES, LLP filed a Q4 report for COMMONWEALTH FUSION SYSTEMS LLC on January 19, 2026, reporting $30,000 in lobbying income.

Lobbying for COMMONWEALTH FUSION SYSTEMS LLC · Fusion energy development.

All filings by K&L GATES, LLP · Everything COMMONWEALTH FUSION SYSTEMS LLC has reported

Filing · LD-2 quarterly report Q4 report

Reporting period

4th Quarter 2025

Oct 1 - Dec 31 · Posted Jan 19, 2026

Income

$30,000

What the client paid this registrant for the period.

Client based in

Massachusetts

Official filing document

Government bodies contacted 3

The chambers, agencies and offices the filer named. It does not say who inside them was contacted, or when. Each name opens every filing that named the same body.

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.

Bills named in this filing 6

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

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