/Companies

circe

Boston, US · Founded 2021 · 12 known investors

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Circe develops a biotechnology platform that uses advanced gas transformation to produce carbon-negative molecules at scale for manufacturing. The company serves industrial manufacturers seeking to decarbonize production of high-performance products while securing supply chains.

Founders & leadership

circe was founded in 2021 by Marika Ziesack and Shannon Nangle.

MZ
Marika ZiesackCo-founder
SNShannon Nangle
Shannon NangleFounder
CD
Ciaran DunnFounder

Investors · 12

Reported raises · per SEC filings

Form D private placements

$1.6M disclosed across 1 round · 2021

▶$1.6MraisedOct 2021 · 4 investors · Other
Rule 506(b)
Officers, directors & promoters on the filing
  • Marika ZiesackExecutive Officer, Director, Promoter
  • Shannon NangleExecutive Officer, Director, Promoter
Offering amount
$4M
Amount sold
$1.6M
First sale
Oct 2021
Incorporated
Corporation, Delaware, 2021
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

Frequently asked questions

What does circe do?
Circe develops a biotechnology platform that uses advanced gas transformation to produce carbon-negative molecules at scale for manufacturing. The company serves industrial manufacturers seeking to decarbonize production of high-performance products while securing supply chains.
Who founded circe?
circe was founded by Marika Ziesack, Shannon Nangle in 2021.
Who are circe's investors?
circe's investors include Bee Partners, E8 Angels, Elementum Ventures, Exceptional Ventures, Gaingels, Juniper, Silicon Valley, Undeterred Capital and 4 more.
How much funding has circe raised?
circe has disclosed $1.6M raised across 1 round.
Where is circe headquartered?
circe is headquartered in Boston, US.