Lobbyist

BROWN, MATTHEW

FILINGS KEY

Client Is Connected to China as Indicated in Filing
Client Is Connected to China as per Heritage Foundation Analysis
No Known Client Connection to China
—
Lobbying Terminated
Based on data as of April 24, 2026
Associated Filings (6)

Client
CLEARSIGN COMBUSTION CORPORATION

Lobby Firm
SIGNAL GROUP CONSULTING LLC

Filing Year
2013

Lobbying Status
Terminated 2014

Foreign Entities Connected to Client

None

Lobbyists

View Filing