Cocoon
London, GB · 6 known investors
Cocoon develops low-carbon construction materials, including LoopCem, a supplementary cementitious material (SCM) made by valorizing electric arc furnace (EAF) steel slag to reduce concrete emissions. It serves the construction and cement industry with the aim of enabling net-zero building.
Founders & leadership
Investors · 6
Funding
SEC filings, press & company announcements$15M disclosed across 1 of 2 rounds · 2024–2026
Source: company announcements and press reports — follow each round's link for the claim.
Competitors · 7
by search overlap
Carbon Cure Technologies7 shared keywordsCarbonCure develops technologies that inject captured CO₂ into fresh concrete during mixing, where it mineralizes and permanently embeds in the material while reducing the amount of cement needed. The company sells these systems to cement and concrete producers to help lower the embodied carbon of concrete and the built environment.
Carbon6 shared keywordsCarbon provides 3D printing hardware, photopolymer resins, and computational design software that brands use to design, develop, and manufacture high-performance products. Its technology targets applications in comfort and protection products across consumer and industrial markets.
Solid Carbon4 shared keywordsSolid Carbon produces concrete additives and ingredients that sequester carbon in concrete, reducing its embodied emissions and converting it into a climate solution for construction applications.
Living Carbon4 shared keywordsLiving Carbon develops precision-bred tree varieties and reforestation techniques to convert marginal land into carbon-sequestering ecosystems. The company targets climate mitigation through enhanced photosynthesis and biodiversity restoration.
Brimstone4 shared keywordsBrimstone develops co-production processes to manufacture cement, steel, aluminum, and other critical minerals from a single feedstock in an integrated facility. The company targets heavy industry producers seeking lower-cost, more sustainable production methods for materials essential to construction and manufacturing.
CarbonFree3 shared keywordsCarbonFree captures industrial carbon emissions and converts them into industrial minerals, including its endurocal calcium carbonate product, avoiding the need for mining. It serves industrial manufacturers seeking lower-carbon material inputs.
CarbonBuilt3 shared keywordsCarbonBuilt makes low-carbon concrete masonry and hardscape products by replacing up to half the cement with its proprietary upcycled binder, reducing the carbon footprint of concrete production. It targets the construction materials market with products priced and performing comparably to conventional concrete.
Companies competing with Cocoon for the same Google search keywords, organic and paid, via search-intersection analysis.
In the news
Frequently asked questions
- What does Cocoon do?
- Cocoon develops low-carbon construction materials, including LoopCem, a supplementary cementitious material (SCM) made by valorizing electric arc furnace (EAF) steel slag to reduce concrete emissions. It serves the construction and cement industry with the aim of enabling net-zero building.
- Who founded Cocoon?
- Cocoon was founded by Eliot Brooks, William Knapp.
- Who are Cocoon's investors?
- Cocoon's investors include 2150, Brick Mortar Ventures, Gigascale Capital, SOSV, The Venture Collective, Wireframe Ventures.
- How much funding has Cocoon raised?
- Cocoon has disclosed $15M raised across 1 of its 2 known rounds.
- Where is Cocoon headquartered?
- Cocoon is headquartered in London, GB.