Fundraising Fox

ClearSign Technologies

NASDAQ: CLIR

Tulsa, US · Delaware corporation

Founders & leadership

BH
Brent HindsChief Financial Officer
CJ
Colin James DellerChief Executive Officer
SE
Stephen E. PirnatExecutive
JO
Jeffrey OttNamed on SEC filing
SM
Susanne MelineNamed on SEC filing
LB
Lon BellNamed on SEC filing
SI
Scott IsaacsonNamed on SEC filing
RT
Robert T. Hoffman Sr.Named on SEC filing
BF
Brian FikeNamed on SEC filing
AD
Anthony DiGiandomenicoNamed on SEC filing
LJ
Louis J BaseneseNamed on SEC filing
TG
Todd Gil SilvaNamed on SEC filing

Reported raises · per SEC filings

Form D private placements

$24.2M disclosed across 5 rounds · 2018–2026

▶$1.8MraisedJul 2026 · 1 investors · Other Technology
Rule 506(b)
ClearSign raises $1.77M in private share sale | CLIR 8-K Filingstocktitan.net · Jul 2026ClearSign Technologies Raises $1.77 Million in Private Sale; Underwriter Waives Lock-Up — TradingView Newstradingview.com · Jul 2026
Officers, directors & promoters on the filing
  • Colin James DellerExecutive Officer, Director
  • Brent HindsExecutive Officer
  • Anthony DiGiandomenicoDirector
  • Louis J BaseneseDirector
  • Todd Gil SilvaDirector
Offering amount
$1.8M
Amount sold
$1.8M
First sale
Jul 2026
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$4.3MraisedJul 2024 · 1 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Catharine de LacyDirector
  • David M. MaleyDirector
  • Brent HindsExecutive Officer
  • Colin James DellerExecutive Officer, Director
  • Judith S. SchreckerDirector
Offering amount
$11.7M
Amount sold
$4.3M
First sale
Jun 2024
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$5MraisedMay 2024 · 1 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Judith S. SchreckerDirector
  • David M. MaleyDirector
  • Brent HindsExecutive Officer
  • Robert T. Hoffman Sr.Director
  • Colin James DellerExecutive Officer, Director
  • Catharine de LacyDirector
Offering amount
$14.4M
Amount sold
$5M
Sales commissions
$400K
Placement agents
Public Ventures, LLC
First sale
Apr 2024
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$1.3MraisedOct 2020 · 1 investors · Other
Rule 506(c)
Officers, directors & promoters on the filing
  • Robert T. Hoffman Sr.Director
  • Colin James DellerExecutive Officer, Director
  • Susanne MelineDirector
  • Bruce Alan PateDirector
Offering amount
$1.3M
Amount sold
$1.3M
First sale
Sep 2020
Incorporated
Corporation, Washington
Federal exemptions
06c
Full filing on SEC EDGAR ↗
▶$11.7MraisedJul 2018 · 1 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Stephen E. PirnatExecutive Officer, Director
  • Jeffrey OttDirector
  • Susanne MelineDirector
  • Lon BellDirector
  • Scott IsaacsonDirector
  • Robert T. Hoffman Sr.Director
  • Brian FikeExecutive Officer
Offering amount
$11.7M
Amount sold
$11.7M
Minimum investment
$11.7M
First sale
Jul 2018
Incorporated
Corporation, Washington
Federal exemptions
06b
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

In the news

Goldwind Science And Technology (OTCMKTS:XJNGF) vs. ClearSign Technologies (NASDAQ:CLIR) Financial Contrast - Ticker Reporttickerreport.com · Aug 2026Research Analysts Issue Forecasts for CLIR FY2028 Earnings - Markets Dailythemarketsdaily.com · Aug 2026Earnings call transcript: ClearSign beats Q2 2026 EPS forecast as revenue misses By Investing.comuk.investing.com · Aug 2026ClearSign Technologies Reports Q2 2026 Results: Full Earnings Call Transcript - ClearSign Technologies (N - Benzingabenzinga.com · Aug 2026ClearSign Technologies Corp raises $1,770,000 in private sale | CLIR SEC Filing - Form Dstocktitan.net · Jul 2026ClearSign Combustion Raises Capital via Private Stock Placement - The Globe and Mailtheglobeandmail.com · Jul 2026ClearSign Technologies Raises $1.77 Million in Private Sale; Underwriter Waives Lock-Up — TradingView Newstradingview.com · Jul 2026ClearSign raises $1.77M in private share sale | CLIR 8-K Filingstocktitan.net · Jul 2026

Frequently asked questions

How much funding has ClearSign Technologies raised?
ClearSign Technologies has disclosed $24.2M raised across 5 rounds.
Where is ClearSign Technologies headquartered?
ClearSign Technologies is headquartered in Tulsa, US.