When was Mantel founded?

Mantel was founded in 2022 and raised its 1st funding round within a year of its incorporation.

Where is Mantel located?

Mantel is headquartered in Cambridge, United States.

Who is the current CEO of Mantel?

Cameron Halliday of Mantel. They have also founded 1 company.

How many employees does Mantel have?

As of Jul 31, 2026, the latest employee count at Mantel is 50.

Is Mantel a funded company?

Mantel is a funded company, having raised a total of $50M across 4 funding rounds to date. The company's 1st funding round was a $***** Seed round, raised on Aug 23, 2022.

When was the latest funding round of Mantel?

Mantel's latest funding was a $***** Series A round on Aug 24, 2026, with participation from 2 investors.

Where does Mantel rank among its competitors?

Mantel ranks 1st amongst 10 active competitors, of which 3 are funded. It stands 1st in terms of total funding among its competitors. The most recent competitor to raise funding was Mantel, which secured $30M in Jun, 2024.

Who are the top competitors of Mantel?

Mantel's top competitors include Carbon Crusher, Carbon Circle and InnoSepra. Among them, Mantel secured the most recent funding round in August, 2026.

Mantel - 2026 Company Profile, Team, Funding & Competitors

Mantel is a series A company based in Cambridge (United States), founded in 2022 by Cameron Halliday and Sean Robertson. It operates as a Developer of high-temperature carbon capture materials for industrial applications. Mantel has raised $50M in funding from investors like Eni Next, Shell and Engine Ventures. The company has 10 active competitors, including 3 funded and 2 that have exited. Its top competitors include companies like Carbon Crusher, Carbon Circle and InnoSepra.

Company Details

Developer of high-temperature carbon capture materials for industrial applications. These materials are designed to operate within the high-temperature environments of boilers, kilns, and furnaces, enabling highly efficient carbon capture. The technology facilitates carbon dioxide capture to meet climate goals, offering a viable solution for various industries. The materials are engineered for effective and efficient CO2 removal in demanding industrial settings.

Website: mantelcapture.com
Email ID: *****@mantelcapture.com

Key Metrics

Founded Year

2022

Location

Cambridge, United States

Stage

Series A

Total Funding

$50M in 4 rounds

Latest Funding Round

Series A, Aug 24, 2026, $*****

Investors

Eni Next & 10 more

Ranked

1^st among 10 active competitors

Employee Count

50 as on Jul 31, 2026

Similar Companies

Carbon Crusher & 8 more

View Mantel's full profile

Mantel has raised a total funding of $50M over 4 rounds. Its first funding round was on Aug 23, 2022. Its latest funding round was a Series A round on Aug 24, 2026 for $*****. 2 investors participated in its latest round. Mantel has 11 institutional investors.

Here is the list of recent funding rounds of Mantel:

Filter this list

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Aug 24, 2026	9287288	Series A	6624913	1450482	2712802	2150634
Jun 20, 2024	1754833	Series A	4156690	2539930	8203918	Engine Ventures & 7 more
Feb 01, 2024	7990413	Grant (prize money)	3849386	4320329	7135637	National Science Foundation

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View details of Mantel's funding rounds and investors

The founders of Mantel are Cameron Halliday and Sean Robertson. Cameron Halliday is the CEO of Mantel.

Here are the details of Mantel's key team members:

Cameron Halliday: Co-Founder & CEO of Mantel.
Contact Info: 1 email address
Sean Robertson: Co-Founder & CTO of Mantel.
Contact Info: 1 email address

View details of Mantel's Founder profiles and Board Members

Mantel's employee count trend

Mantel has 50 employees as of Jul 26. Here is Mantel's employee count trend over the years:

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Top competitors of Mantel include Carbon Crusher, Carbon Circle and InnoSepra. Here is the list of Top 10 competitors of Mantel, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	Mantel 2022, Cambridge (United States), Series A	Developer of high-temperature carbon capture materials for industrial applications	$50M	Shell, BP Ventures & 9 others	61/100
2nd	Carbon Crusher 2021, Oslo (Norway), Seed	Provider of carbon-negative roads using biopolymers and recycled materials	$500K	Climate Capital, Kayak Ventures & 3 others	43/100
3rd	Carbon Circle 2022, Oslo (Norway), Seed	Provider of carbon capture systems and energy-from-waste EPC project execution	-	Amplus Energy	35/100
4th	InnoSepra 2007, Middlesex (United States), Funding Raised	Developer of carbon dioxide capture, renewable natural gas, and pollutants control technologies	-	Greentown Labs, OSTI & 1 others	34/100
5th	Compact Carbon Capture 2018, Bergen (Norway), Acquired	Provider of carbon capture solutions	-	Fundación Repsol	30/100
6th	Htc Purification 2020, Canada, Public	Developer of carbon capture systems and industrial solvent reclamation technology	-	-	18/100
7th	AURORA 2023, Trondheim (Norway), Unfunded	Technology solution for carbon capture	-	-	16/100
8th	Ooc Technologies 2022, Rajsamand (India), Unfunded	Solvent-based carbon capture technology	-	-	16/100
9th	Hirecord 2002, Thessaloniki (Greece), Unfunded	Developer of modular CO2 capture plant	-	-	15/100
10th	Giammarco Technologies 1955, Venice (Italy), Unfunded	Developer of industrial carbon capture technologies using chemical solvent processes	-	-	-