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









Promethean Particles

Promethean Particles

Private
NottinghamFrontier & Industrial Techhttps://prometheanparticles.co.uk/

Last Round

Series A

Aug 14, 2024

Total Funding Raised

$14.18M

Momentum

Top 5%

of companies Caplight tracks

Company Overview

Promethean Particles is a chemical manufacturing company that produces metal-organic frameworks (MOFs) and other nanomaterials for applications such as carbon capture, gas storage, and water harvesting.

Sector

Frontier & Industrial Tech

Verticals

Advanced Materials, Carbon Capture, Clean Manufacturing, Sustainable Materials

Business Model

B2B

Customer Profile

Hardware Sales, Services & Consulting, Government Contracts

AI Layer

Non-AI

Keywords

metal-organic frameworksMOFscontinuous flow manufacturingcarbon captureMOF manufacturingadvanced materialsgas separationatmospheric water harvestingwater from airbiogas upgradinggas storageMOF scale-upmaterials scienceCCUSnanomaterials manufacturinghard tech

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.

Promethean Particles Comps

Public and private peers based on sector, stage, and business model.

CompanyStatusEst. ValuationRev Multiple
OpenAIPrivate$86.0B~40x
CoherePrivate$5.0B--
Competitor 1Public$XX.XBXXx
Competitor 2Public$XX.XBXXx

View Full Comps Set

Access detailed peer comparisons, multiples, and valuation benchmarks.

Promethean Particles Funding Rounds

Historical fundraising activity

RoundDateAmount RaisedValuationInvestorsSources
Series AAug 14, 2024
GrantOct 31, 2023
GrantJun 28, 2023
VC RoundSep 22, 2022
VC RoundNov 13, 2019
Seed
May 22, 2012

Key People

Founding team and executive leadership

James Stephenson

Chief Executive Officer

Executive Team

Paul Denney

Chief Financial Officer

Executive Team

Promethean Particles Investors

Notable investors and investment history

Market signals

Structured signals derived from secondary market and firmographic data.

  • Jun 18, 2026

    Monthly visitors increased 62% MoM.

  • Sep 18, 2025

    Named an award recipient at the WIRED Trailblazers event.

Promethean Particles Filings

SEC and related filings with document metadata.

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

Promethean Particles Filings

SEC and related filings with document metadata.

Frequently Asked Questions

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

Firmographic Details

HeadquartersNottingham
Employee Range30
Year Founded2007
Last FundingAug 14, 2024

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.







Disclaimer All investments involve risk, including the risk of loss of principal. You should carefully consider your investment objectives, risks, transaction costs and other expenses before deciding to invest in options, swaps or other investments.This does not constitute an offer by Caplight Technologies, Inc. to sell, or a solicitation of an offer to buy, any securities and may not be used or relied upon in connection with any offer or sale of securities. An offer or solicitation can be made only through the delivery of final offering document(s) and purchase agreement(s), and will be subject to the terms and conditions and risks delivered in such documents. Any securities offered are offered through Caplight Markets LLC, member FINRA/SIPC.