Cool Planet Technologies

Venture roundlatest round · Apr 2026 · 6 mo ago
2backers · Helmholtz, Neva SGR
200+team · employees, estimated range
2019founded

Overview

Advanced Membrane Carbon Capture. Major reduction in capital and operating costs.

Key facts

These are the key facts about Cool Planet Technologies on Alion as of Nov 13, 2026. Cool Planet Technologies is headquartered in London, United Kingdom. It was founded in 2019.

Headquarters
London, United KingdomAlion company profile, updated Nov 9, 2026
Founded
2019Alion company profile, updated Nov 9, 2026
Employees
200+Alion company profile, an estimated range
Official records

Funding and backers

Latest round
Venture round
Apr 2026 · 6 mo ago
Team
201-500
employees, estimated range
Backers
2
Helmholtz, Neva SGR
The money's age
Fresh money
6 months since the last round · not hiring
Momentum
20/100
fresh money
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Apr 28 Raised a round Venture round Dec 19, 2024 Raised a round Venture round Aug 12, 2024 Raised a round Venture round Sep 20, 2022 Raised a round Venture round 2019 Founded
Funding rounds
RoundDateAmountInvestorsSource
Venture round Apr 2026 — — find-and-update.company-information.service.gov.uk
Venture round Dec 2024 — — find-and-update.company-information.service.gov.uk
Venture round Aug 2024 — — find-and-update.company-information.service.gov.uk
Venture round Sep 2022 — — find-and-update.company-information.service.gov.uk
Registers and programsofficial lists and records that name the company
Legal entity Cool Planet Technologies GmbH its site
Registered 17 May 2019
Founders and leadersfrom filings, registers and the company's site
Sue MiddlemissCEOcompany's site
Backed byfrom the funds' portfolios and accelerator catalogs
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Financials

Latest round
Venture - Series Unknown
Funding rounds
4
Funding rounds
Round Announced Amount
Venture - Series Unknown 2026 — Details
Venture - Series Unknown 2024 — Details
Venture - Series Unknown 2024 — Details
Venture - Series Unknown 2022 — Details

People

Sue Middlemiss
CEO
Names and roles come from public filings, company registers and the company's own site. Is this you? Correct or remove · How we handle this data

Connections

List
Graph
Found in company registers, site code, DNS and hiring. Each connection shows how sure we are and the evidence, with its source and date.
Shared investors2
Neva SGRVia a fund
45 portfolio companies: Intesa Sanpaolo, consob.it, Nouscom and 42 more
HelmholtzVia a fund
372 portfolio companies: Marton, POMA AI GmbH, EchoSpaces GmbH and 369 more

Offices

Where the company hires and what each office is for
Cities
1
Hiring now
0
Countries
1
London United Kingdom
HQ
Contact
200-500 est. staff
Registered Address: Cool Planet Technologies Limited, 6th Floor, 99 Gresham Street, London, EC2V 7NG, United Kingdom
company site

How to cite this page

Alion, "Cool Planet Technologies: key facts", as of Nov 13, 2026. https://alion.io/company/coolplanettech

These figures are published under a free licence. You may reuse them, including commercially, as long as you credit Alion and link back to this page. CC BY-SA 4.0