Katherine Cullen

🏛️ Revolving Door

Former Government Position:

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961

Total Filings

1

Firms

24

Clients

21

Issue Areas

Activity by Year

Year	Filings	Clients	Firms
2018	63	9	1
2019	72	9	1
2020	93	10	1
2021	154	14	1
2022	206	15	1
2023	159	15	1
2024	112	14	1
2025	102	14	1

Firms

Sc Partners LLC961 filings

Top Clients

Citizens for Responsible Energy Solutions98 filings

Pattern Energy Group LP96 filings

Edp Renewables North America LLC94 filings

Quanta Services, INC.89 filings

Combined Heat and Power Alliance (Formerly Alliance for Industrial Efficency)85 filings

Ow North America67 filings

Solar Energy Industries Association59 filings

Leeward Renewable Energy56 filings

Energyre, LLC47 filings

Space Nuclear Power Corporation39 filings

Naturgy Candela Devco LLC36 filings

First Solar, INC.33 filings

Avantus29 filings

Edpr Offshore North America LLC28 filings

Northland Power INC.17 filings

Electric Hydrogen Co.16 filings

Tracfone Wireless15 filings

Balanced Rock Power14 filings

Q Hydrogen12 filings

Nextracker10 filings

Data Sources: Senate LDA Filings

Last updated: February 2026

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