NEWCaplight raises a $16M Series A, led by BlackRock and Fin Capital →
Skip to main content
Caplight Logo









Carbonwave

Carbonwave

Private
Boston, MassachusettsEnergy & Sustainabilityhttps://carbonwave.com/

Last Round

Seed Round

Apr 29, 2026

Total Funding Raised

$15.33M

Momentum

Top 50%

of companies Caplight tracks

Company Overview

Carbonwave is a climate technology company that transforms invasive Sargassum seaweed into high-value plant-based biomaterials for the agriculture, cosmetics, and fashion industries.

Sector

Energy & Sustainability

Verticals

Sustainable Materials, Circular Economy, Fashion & Beauty, Waste Management

Business Model

B2B

Customer Profile

Data as a Service, Services & Consulting

AI Layer

Non-AI

Keywords

sargassumbiorefineryseaweed upcyclingbiomaterialsbio-stimulantssurfactantscircular economyregenerative agriculturesustainable ingredientsocean cleanupblue economyclimate techbiotechwaste valorization

Historical Pricing

Historical view of private secondary pricing and transaction trends.

Unlock Pricing Charts

Sign up to view complete historical pricing and secondary transactions.

Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

View Momentum History

Track how buyer interest and sentiment changes over time.

Carbonwave Comparables

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

Carbonwave comparables — related companies by embedding similarity
CompanySimilarityMarket Cap

View Full Comparables Set

Access detailed peer comparisons, similarity scores, and market data.

Carbonwave Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Seed RoundApr 29, 2026
StrategicJun 23, 2023
Series AApr 6, 2023
SeedNov 5, 2021
CrowdfundingSep 30, 2021

Key People

Founding team and executive leadership

Ben Ellis

Chief Financial Officer, Co-Founder And Board Member

Founding Team

Geoff Chapin

Chief Executive Officer

Executive Team

Carbonwave Investors

Notable investors and investment history

Carbonwave investors
InvestorRounds
MirovaSeries A
Baruch Future VenturesSeed
Incite VenturesSeed
Pegasus Capital AdvisorsStrategic
Katapult OceanSeries A
Katapult OceanSeries A

Market signals

Structured signals derived from secondary market and firmographic data.

  • Apr 29, 2026

    $205K raised in Seed Round.

  • Apr 6, 2023

    $5M round led by Mirova.

Carbonwave Filings

SEC and related filings with document metadata.

Data table
TypedDateAmount OfferedAmount SoldFillingPagesDownload
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation

Carbonwave Filings

SEC and related filings with document metadata.

Frequently Asked Questions

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

Firmographic Details

HeadquartersBoston, Massachusetts
Employee Range36
Year Founded2020
Last FundingApr 29, 2026

Institutional Data Access

Join leading institutional investors using Caplight to access private market data, discover pricing, and execute secondary block trades.

Requires verified institutional or accredited status.