DEEP FISSION INC.

Lobbying client · California · filed 2026 to 2026

Deep Fission is a nuclear fission company with an in house lobbyist

$60,000 Reported spend

5 Filings counted

1 Outside firm hired

0 Bills named

Spend is reported income plus in-house expenses across 5 filings. 2 further filings for this client were restated by a later amendment and are left out of every total here. The LDA keeps a separate client record for every registrant that files for a client, so this page adds up 2 records, one per registrant listed below. Records are combined when the client name matches once case, punctuation and endings such as Inc. or LLC are set aside; for a city, county or port the state has to match as well. These filings have also been reported as DEEP FISSION, INC.

Who filed for this client 2

MISSION STRATEGIES LLC (ENERGY) $40,000 Outside firm · 2 filings
DEEP FISSION INC. $20,000 In-house, the client's own filings · 3 filings

Spend per registrant: fees an outside firm reported, or the costs the client reported for lobbying in-house. The rows add up to the total above.

Reported by year 1 year

2026 $60,000 5 filings

Issues lobbied 1

Energy/Nuclear 3

The count is how many filings named that issue area. A filing reports one lump figure covering every issue on it, so the money above cannot be split between them.

Agencies and chambers lobbied 3

Energy, Dept of 1
HOUSE OF REPRESENTATIVES 1
SENATE 1

Recent filings 7 total

Q3 amendment

DEEP FISSION INC.

3rd Quarter 2026 (July 1 - Sep 30) · $20,000 expenses · posted Oct 21, 2026

View → Q3 amendment

MISSION STRATEGIES LLC (ENERGY)

3rd Quarter 2026 (July 1 - Sep 30) · House · Senate · $40,000 income · posted Oct 20, 2026

View → Q3 report

MISSION STRATEGIES LLC (ENERGY) Amended

3rd Quarter 2026 (July 1 - Sep 30) · House · Senate · posted Oct 20, 2026

View → Registration

MISSION STRATEGIES LLC (ENERGY)

3rd Quarter 2026 (July 1 - Sep 30) · posted Oct 14, 2026

View → Q3 report

DEEP FISSION INC. Amended

3rd Quarter 2026 (July 1 - Sep 30) · posted Sep 30, 2026

View → Q2 report

DEEP FISSION INC.

2nd Quarter 2026 (Apr 1 - June 30) · posted Jul 29, 2026

View → Registration

DEEP FISSION INC.

3rd Quarter 2026 (July 1 - Sep 30) · posted Jul 29, 2026

View →

Keep going

Filings through October 21, 2026, the newest posted date on this record. Source: federal Lobbying Disclosure Act filings, synced daily. Money is self-reported by the filer and often rounded. Lobbying is legal, disclosed activity.