Paebbl

For decades, the construction sector has been stuck in an agonizing dilemma: it is hugely important to global development, while emitting up to 8% of global CO₂ emissions from cement alone, and pathways to simultaneous short-term impact and commercial adoption have proved elusive. That is where Paebbl, which was founded in 2021 by visionary entrepreneurs Andreas Saari, Marta Sjögren, Jane Walerud and Pol Knops, comes in, proactively converting the role of construction from a carbon emitter to a carbon sink. By speeding up CO₂ mineralization by 10 million times, Paebbl generates a carbon-storing powder that captures CO₂, and is made from silicate minerals such as olivine, which substitutes cement and stores emissions forever.

Paebbl’s technological and operational journey has been remarkable and nearly unprecedented. Starting with gram-scale output in lab preparation, the company scaled up to 2–3 kilograms sustainably in-house by May 2023, and then to 200–300 kilograms per day at the Rotterdam pilot plant by November 2023. The firm reached some extraordinary milestones when it sequestered its first full ton of CO₂ in May 2024 and even stocked its first full concrete structure using its mineralized product. By 2025, the continuous operation demonstration plant in Rotterdam became operational – serving as a company model for scale and ambition at three tonnes of product per day and one tonne of CO₂ sequestered. The development of a station in Helsinki, Stockholm, and a planned hub in the UK also supports European expansion by generating a host location for future global growth.

Paebbl's pricing and earning framework aims to be in the market economic- and climate mission-oriented congruency. The company earns revenue not relying solely on carbon credits or subsidies but by selling its carbon-sequestering powder as an SCM (supplementary cementitious material) to construction and cement producers directly. All while pricing its product competitively with traditional cement additives, with the added value of permanently sequestering CO₂ providing clients more regulatory and reputational space. All while tying revenue streams to how much material is incorporated, meaning as the demand for low carbon construction expands, Paebbl earns while maximizing its impact on climate.

On the financial side, Paebbl finished an important $25 million Series A round in October 2024, led by Capnamic Ventures, with participation from Amazon's Climate Fund, Holcim (via Holcim MAQER Ventures), Aurum Impact, Goldbeck's family office, and existing investors (2050, Pale Blue Dot, Grantham Foundation). With this round, Paebbl's total funding to date is about $33 million. It is also building a strong human capital base, expanding to over 65 employees with an 81% growth within one year, and continues to expand in Northern and Western European hubs. Revenue is already real, with approximately $12.3 million per year, or about $189,000 per employee. This is a very promising sign of efficiency for a young climate-tech venture. They are still working toward profitability (sustained losses are expected, as resources are reinvested in scaling and developing new technologies), and, as shown above, their revenue growth is indicative of commercial promise. One expert source (albeit speculative) indicates they might be implying a value of about $3 billion – use caution in entertaining this number until they confirm it, as positive business news often leads to speculating on value.

The competitiveness in the market is stark, with competitors like Arca, Heirloom, Exterra, Mantel, Silicate, and ClimeRock all representing different flavors of mineralization/enhanced weathering, besides direct air capture companies like Climeworks that are raising outrageous amounts of capital. However, despite this, Paebbl differentiates itself by embedding captured CO₂ into construction materials that the world is already consuming at scale. The company is not situated primarily in the carbon credit market. Rather, the firm is providing a functional, commercially-available product, which has climate and performance attributes, providing a commercially viable alternative to cement additives. This is where the differentiation is: a competitively attractive and climate positive solution.

Looking ahead, Paebbl is expecting to start operation of a commercial-scale plant by 2027, with an ambitious aim of delivering one million tonnes CO2 storing material per year by 2030. The pathway to scale is not only possible but accelerating, as milestones for production have already been achieved and are being broadened across Europe. As co-CEO Andreas Saari stated, “We have the opportunity in front of us to turn the built environment into the world’s largest carbon sink… to go from bench to pilot to demo in < 18 months shows that our team has the capacity to operate at the speed required to win.” With tremendous support from investors, revenue ramping up, and technology that aligns climate goals with market needs, Paebbl is rapidly establishing itself as one of the most exciting players in climate tech. This is more than just an incremental innovation - it is a paradigm shift in how we build, pointing to a future where construction is not a carbon problem, but a climate solution - one mineralized ton at a time.

Click here to access Paebbl's website.