CLEARSIGN COMBUSTION CORPORATION

Lobbying Spend

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Filings

Firms Hired

Active Period

2013–2014

Lobbying Spend by Year

Client-reported lobbying expenses on LDA filings

Year	Lobbying Spend	Filings	Firms
2014	—	2	1
2013	—	3	1

Lobbying firms retained by this client; amounts are client-reported expenses when available

Firm Name	Reported Spend	Filings
SIGNAL GROUP CONSULTING, LLC	—	5

Government entities explicitly identified as targets in LDA filings

Government Body	Filings
Energy, Dept of	1
Environmental Protection Agency (EPA)	1
HOUSE OF REPRESENTATIVES	1
SENATE	1

Most frequently reported lobbying issues

CLEARSIGN COMBUSTION CORPORATION — Lobbying Disclosure | Poliscope