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Carbonaught

Carbonaught: Transforming degraded land into fertile, carbon-rich soil. We offer verifiable carbon removal solutions using Enhanced Rock Weathering, improving soil health, reducing fertilizer reliance, and permanently sequestering CO₂.
2021
2-10
Cambridge, Massachusetts, United States

https://www.carbonaught.io

AgricultureCarbon CaptureCleanTechSustainability
Innovation
Investment Funding
People
Products
Awards and Recognitions
M&A and Collabs
News

Innovation

Industry Problem

Carbonaught is tackling soil degradation, high farming costs, and climate-impacting agricultural emissions by providing scalable, verifiable carbon removal solutions that improve soil health and support sustainable, resilient food systems.

R&D Focus

Their R&D focuses on enhanced weathering technology that applies finely crushed basalt to farmland, improving soil health while enabling permanent, high-density carbon removal. Operating in the niche segment of on-farm carbon sequestration and soil regeneration, they integrate natural mineral weathering into existing agricultural systems to address climate change, reduce emissions, and strengthen food security simultaneously.

Innovative Solution

Carbonaught uses Enhanced Rock Weathering—applying finely crushed basalt to farmland to improve soil health, boost productivity, and permanently capture carbon dioxide directly in the soil. By combining this natural process with tailored agronomic practices across various farming systems, their approach reduces emissions, strengthens resilience, and provides verified carbon removal. This scalable method supports farmers, meets environmental regulations, and offers corporations a reliable way to cut Scope 3 emissions while promoting sustainable, climate-smart agriculture.

Solution Effectiveness

Carbonaught’s enhanced rock weathering solution is highly effective, with projects such as Mareeba estimating up to 2,000 tonnes of CO₂ removal annually at full scale. It permanently sequesters carbon by converting CO₂ into stable minerals in soil, improves soil health by releasing nutrients and enhancing water retention, reduces reliance on synthetic fertilisers, and aligns with rigorous science-based targets (SBTi FLAG) for verified Scope 3 emissions reductions, offering a scalable, measurable impact on both climate and agriculture.

Investment Funding

Last Funding Stage

Seed

Total Funding Amount

$347.7K

Last Funding Date

February, 2024

Startup Stage

Pre-Seed

Lead Investors

Antler, Startmate, MassChallenge Switzerland, SparkLabs Cultiv8

People

Founders

  • Andrew Pedley
  • James Lyons
  • Rhys Heffernan

CEO

  • Andrew Pedley

Products

Product

– Enhanced Rock Weathering (ERW) – Applies finely crushed basalt to farmland to sequester CO₂ and improve soil health. – Carbon Measurement & Verification Platform (custom-built, not always named) – Tracks carbon removal with high accuracy; ensures verifiability and permanence. – Precision Application Tools – Ensures optimal spreading of basalt rock dust for maximum soil and climate benefit. – Data & Monitoring Systems (e.g., NEWTON by UNDO) – Helps manage field data, application rates, and reporting to corporate buyers. – Customer Reviews – NA

Star Product

Enhanced Rock Weathering (ERW) is the startup’s core and standout solution because it simultaneously removes CO₂ permanently from the atmosphere and improves soil health, making it valuable to both farmers and climate-focused corporates. It integrates easily into existing farm practices, requires no major infrastructure, and directly contributes to Scope 3 emissions reduction targets. Its dual impact—agricultural resilience and carbon sequestration, makes it the flagship offering driving both environmental and commercial outcomes.

Demo Product or Complete Product?

The startup’s flagship product is Enhanced Rock Weathering (ERW), which involves applying finely crushed basalt to farmland to sequester carbon dioxide and improve soil health. Their first deployment of this technology was through Project Farnsfield, launched in 2022 in the Bundaberg region of Queensland, Australia.

Awards and Recognitions

Awards

– 2024 Lord Mayor’s Business Awards – XPRIZE Top 100 2024

Media Apperance

– The Verge – Carbonaught News

M&A and Collabs

Collab

Carbonaught has collaborated with Howe Farming, one of Australia’s largest horticulture and sugarcane enterprises, in Project Mareeba. This pilot project in Queensland’s Atherton Tablelands explores the technical, commercial, and environmental benefits of enhanced rock weathering, with an estimated carbon removal potential of approximately 2,000 tonnes annually.

Collab

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