Mantel is a technology company.
Mantel develops carbon capture materials designed to operate at high temperatures in boilers, kilns, and furnaces, enabling efficient carbon capture.
Mantel has raised $32.0M across 2 funding rounds.
Mantel has raised $32.0M in total across 2 funding rounds.
Mantel has raised $32.0M in total across 2 funding rounds.
Mantel's investors include 2150, Alumni Ventures, Axiom Partners, C2 Investment, E1 Ventures, Prosperity7 Ventures, Race Capital, Social Capital, SparkLabs Group, TDK Ventures, The Engine, Trajectory Ventures.
Mantel is a technology company specializing in carbon capture systems using innovative molten salt materials. Founded by MIT alumni, it develops hardware solutions that capture CO₂ from high-temperature industrial exhausts in power plants, cement factories, steel mills, and similar facilities, reducing emissions by up to 95% while generating valuable steam for customers[4][5][7]. This addresses a core challenge in decarbonizing hard-to-abate sectors by slashing energy costs to just 3% of conventional systems, serving heavy industry with scalable, container-sized prototypes already operational and partnerships underway for factory deployments[4][5].
The company solves the profitability barrier in carbon capture, where traditional methods fail due to high parasitic energy loads; Mantel's approach recaptures heat to produce steam, enabling economic viability across fossil fuel plants, bioenergy, and chemical processes[4][5]. Growth momentum includes a shoebox prototype evolving to a shipping-container system running for nearly two years at MIT's The Engine incubator, a 2024 partnership with Kruger Inc. for a Quebec factory pilot operational in 2026, and early funding under $5M[3][4].
Mantel emerged from MIT's Department of Chemical Engineering, founded in 2022 by co-founders Cameron Halliday (CEO), Danielle Colson (COO), and Sean Robertson (CTO)—all MIT alumni with expertise in chemical engineering[4][5]. The idea stemmed from recognizing carbon capture's century-old limitations: existing tech works poorly at high temperatures in boilers and kilns, making it uneconomical for major emitters[5][7]. Halliday's team innovated molten salts that thrive in these conditions, starting with a shoebox-sized prototype and scaling via early funding to a shipping-container unit at The Engine incubator, operational since around 2023[4][5].
Pivotal early traction came from performance data validating 95% capture rates and heat recapture for steam, defying skeptics who view carbon capture as a "dead end."[4] This MIT-rooted origin humanizes Mantel as a purpose-driven startup tackling climate tech's toughest problems through academic rigor and rapid iteration[4][5].
Mantel's edge lies in its molten salt-based carbon capture, optimized for high-temperature flue gases where rivals falter:
These factors position Mantel ahead in developer-friendly, retrofit-ready tech for decarbonization[4][5][7].
Mantel rides the industrial decarbonization megatrend, where point-source CO₂ from cement, steel, and power (20-30% of global emissions) demands affordable capture amid net-zero mandates and carbon pricing[4][5]. Timing is ideal: post-COP agreements and IRA incentives boost pilots, while rivals struggle with economics—Halliday's heat-recapture innovation unlocks "hard-to-abate" sectors previously dismissed[4][5].
Market forces favor Mantel, including rising steam demand in industry and modular scalability for rapid rollout, influencing the ecosystem by proving carbon capture's viability and accelerating adoption in legacy infrastructure[4]. As a climate tech exemplar from MIT's The Engine, it bridges academia to commercialization, potentially shifting investor focus toward high-temp solutions[4][5].
Mantel's trajectory points to commercial scale-up post-2026 Kruger pilot, with expansion across partners' plants if the two-year test succeeds, leveraging sub-$5M funding for larger deployments[3][4]. Trends like AI-optimized processes and policy-driven carbon markets will amplify its momentum, evolving influence from niche innovator to sector standard-setter in efficient capture[4][5].
This positions Mantel to transform industrial emissions at scale, delivering the affordable clean energy hook that defines its promise: not just capturing CO₂, but powering tomorrow's factories with it[4][7].
Mantel has raised $32.0M across 2 funding rounds. Most recently, it raised $30.0M Series A in September 2024.
| Date | Round | Lead Investors | Other Investors |
|---|---|---|---|
| Sep 1, 2024 | $30.0M Series A | 2150, Alumni Ventures, Axiom Partners, C2 Investment, E1 Ventures, Prosperity7 Ventures, Race Capital, Social Capital, SparkLabs Group, TDK Ventures, The Engine, Trajectory Ventures, Transpose platform, Uncork Capital, George Godula, Sahin Boydas | |
| Aug 1, 2022 | $2.0M Seed | 2150, The Engine |