Fundraising Fox

Ambri

Marlborough, US · Founded 2024 · Delaware corporation

Energy

Founders & leadership

Ambri was founded in 2024 by David Bradwell and Donald Sadoway.

DB
David BradwellCo-founder
DS
Donald SadowayCo-founder
AB
Adam BriggsExecutive
SK
Stephen KechesExecutive
PG
Philip GiudiceNamed on SEC filing
PS
Patrick SongNamed on SEC filing

Board

DL
Daniel LeffBoard director
DB
Duncan BourgoinBoard director
MK
Marcelo KimBoard director
AC
Andrew ChungBoard director
SD
Sophie de RichecourBoard director
LV
Lewis Von ThaerBoard director

Reported raises · per SEC filings

Form D private placements

$207.2M disclosed across 4 rounds · 2014–2024

▶$11.1MraisedJan 2025 · 8 investors · Other Energy
Rule 506(b)
Officers, directors & promoters on the filing
  • Adam BriggsExecutive Officer
  • Stephen KechesExecutive Officer
  • David BradwellExecutive Officer, Director
  • Lewis Von ThaerDirector
  • Daniel LeffDirector
  • Duncan BourgoinDirector
  • Marcelo KimDirector
Offering amount
$15.4M
Amount sold
$11.1M
First sale
Aug 2024
Incorporated
Corporation, Delaware, 2024
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$143.8MraisedAug 2021 · 14 investors · Other Energy
Rule 506(b)
Officers, directors & promoters on the filing
  • Donald SadowayDirector
  • Lou Von ThaerDirector
  • Daniel LeffExecutive Officer, Director
  • David BradwellExecutive Officer
  • Navin WadhwaniDirector
  • Christopher PapagianisDirector
Offering amount
$149.4M
Amount sold
$143.8M
First sale
Aug 2021
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$17.3MraisedDec 2018 · 5 investors · Other Energy
Rule 506(b)
Officers, directors & promoters on the filing
  • Philip GiudiceDirector
  • David BradwellExecutive Officer
  • Adam BriggsExecutive Officer
  • Daniel LeffExecutive Officer, Director
  • Patrick SongExecutive Officer
  • Donald SadowayDirector
Offering amount
$17.3M
Amount sold
$17.3M
First sale
Dec 2018
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$35MraisedMay 2014 · 6 investors · Other Energy
Rule 506(b)
Officers, directors & promoters on the filing
  • Donald SadowayDirector
  • David BradwellExecutive Officer
  • Andrew ChungDirector
  • Philip GiudiceExecutive Officer, Director
  • Sophie de RichecourDirector
Offering amount
$35M
Amount sold
$35M
First sale
Apr 2014
Incorporated
Corporation, Delaware, 2010
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

Ambri: Battery Startup Sells Assets in 363 Process and Confirms Liquidating Planelevenflo.com · Mar 2026A Decade In Development, Liquid-Metal Batteries By Ambri May Soon Change The Energy Storage Game - LDES Councilldescouncil.com · Feb 2024Ambri secures $144m financing to commercialize and grow - LDES Councilldescouncil.com · Sep 2021Energy storage company Ambri raises $144m in new funding roundnsenergybusiness.com · Aug 2021American firm Ambri raises $15M in funding to store renewable energyvcpost.com · May 2014Ambri Raises $35 Million in Series C Roundprnewswire.com · Apr 2014

Frequently asked questions

Who founded Ambri?
Ambri was founded by David Bradwell, Donald Sadoway in 2024.
How much funding has Ambri raised?
Ambri has disclosed $207.2M raised across 4 rounds.
Where is Ambri headquartered?
Ambri is headquartered in Marlborough, US.