COMMONWEALTH FUSION SYSTEMS

MA

Fusion energy development.

Active 2019–2026. The register lists this client once for every firm that files on its behalf; all 5 of its records are shown together here.

Filings
94
Filed By
5
Reported In-House
$1,560,000
Reported By Firms
$1,873,500

These two figures are not added together. A client that lobbies for itself reports its own spending, while firms it retains report what they were paid. Disclosure rules ask the in-house figure to include those payments, but filings do not always do so, and a filing gives no way to tell. Each is shown as reported.

Filings

YearFirmPeriodAmountDoc
2026 COMMONWEALTH FUSION SYSTEMS 3rd Quarter (July 1 - Sep 30)
3rd Quarter - Report
$80,000
2026 RICH FEUER ANDERSON 3rd Quarter (July 1 - Sep 30)
3rd Quarter - Report
$50,000
2026 K&L GATES, LLP 3rd Quarter (July 1 - Sep 30)
3rd Quarter - Report
$20,000
2026 COMMONWEALTH FUSION SYSTEMS 2nd Quarter (Apr 1 - June 30)
2nd Quarter - Report
$90,000
2026 RICH FEUER ANDERSON 2nd Quarter (Apr 1 - June 30)
2nd Quarter - Report
$50,000
2026 K&L GATES, LLP 2nd Quarter (Apr 1 - June 30)
2nd Quarter - Report
$30,000
2026 RICH FEUER ANDERSON 1st Quarter (Jan 1 - Mar 31)
1st Quarter - Report
$50,000
2026 K&L GATES, LLP 1st Quarter (Jan 1 - Mar 31)
1st Quarter - Report
$30,000
2026 COMMONWEALTH FUSION SYSTEMS 1st Quarter (Jan 1 - Mar 31)
1st Quarter - Report
$90,000
2025 RICH FEUER ANDERSON 4th Quarter (Oct 1 - Dec 31)
4th Quarter - Report
$50,000
Page 1 of 10  ·  94 filings Next
Filed By
FirmFilingsAmount
COMMONWEALTH FUSION SYSTEMS 17 $1,560,000
K&L GATES, LLP 25 $850,000
RICH FEUER ANDERSON 14 $590,000
THE DESNER GROUP, LLC 27 $283,500
BERQUAM VENTURES, LLC 11 $150,000
Issue Areas

Bills Mentioned in Filings