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Circe Bioscience

Circe Bioscience

Private
Waltham, MassachusettsEnergy & Sustainabilityhttps://circe.bio/

Last Round

Seed

Sep 12, 2024

Total Funding Raised

$13.37M

Momentum

Top 50%

of companies Caplight tracks

Company Overview

Circe Bioscience is a biotechnology company that develops gas fermentation technology to convert carbon dioxide into sustainable, nature-identical fats, oils, and other organic compounds.

Sector

Energy & Sustainability

Verticals

Biotechnology, Sustainable Materials, Carbon Capture, Clean Manufacturing

Business Model

B2B

Customer Profile

Services & Consulting, Data as a Service

AI Layer

Non-AI

Keywords

gas fermentationsynthetic biologybiomanufacturingsustainable fatscarbon capturebio-based ingredientsengineered microbesalternative proteinsfood techclimate techprecision fermentationsustainable oilscarbon-negativebiotech

Historical Pricing

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Caplight Momentum Score

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Circe Bioscience Comparables

Compare Circe Bioscience with similar companies based on industry and business-model similarity.

Circe Bioscience comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
COLIPI
84%
Green-On
84%
Seminal Biosciences
82%

Circe Bioscience Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
SeedSep 12, 2024
GrantJul 11, 2024
GrantMay 1, 2021

Key People

Founding team and executive leadership

Shannon Nangle

Co-founder CEO

Founding Team

Circe Bioscience Investors

Notable investors and investment history

Market signals

Structured signals derived from secondary market and firmographic data.

  • Aug 20, 2026

    Monthly visitors grew 3300% MoM, from 12 to 408.

  • Sep 12, 2024

    $5M round with participation from Bee Partners and Climate Capital.

Circe Bioscience Filings

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Circe Bioscience filings preview — column headings only; records require access
TypeDateAmount OfferedAmount SoldFilingPagesDownload

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Frequently Asked Questions

Common questions about Circe Bioscience's valuation, stock price, and market status.

Is Circe a public or private company?

Circe is a private company.

What is the current stock price of Circe?

Circe is a private company with no public stock price. No recent secondary market data is available.

How much is Circe worth (valuation)?

Valuation information for Circe is not publicly available.

Can I buy Circe stock?

Circe shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors. Visit https://www.caplight.com to learn more.

When was Circe's last funding round?

Circe's most recent funding round was Seed on September 12, 2024.

Who are the main investors in Circe?

Key investors in Circe include Bee Partners, Climate Capital, Regenerative Ventures Holdings, Exceptional Ventures, Ponderosa Ventures.

Will Circe IPO soon?

No public IPO plans have been announced for Circe.

How can I track Circe secondary market activity?

Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor Circe's secondary market activity and sign up for updates.

Firmographic Details

HeadquartersWaltham, Massachusetts
Employee Range51
Year Founded2021
Last FundingSep 12, 2024

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