Sirona Technologies selected for Climate Vault's Carbon Removal Supplier Portfolio

Sirona Technologies has been selected to join Climate Vault Solutions’ CDR portfolio following a multi-stage due diligence process that combines scientific review and independent auditing.

This gives Climate Vault Solutions’ network of more than 50 institutional buyers direct access to independently reviewed, pre-vetted supply of certified carbon removal credits from Sirona Technologies.

Turning due diligence into a procurement shortcut

Climate Vault Solutions’ selection process is guided by the Climate Vault, Inc. nonprofit's Technology Experts Chamber (Tech Chamber), an independent committee of science, technology and policy experts chaired by former U.S. Energy Secretary Ernest J. Moniz. The Tech Chamber establishes the criteria against which all candidate projects are assessed.

Evaluating DAC projects requires technical expertise and internal resources — including the ability to assess MRV systems, storage pathways, and project execution risk — capabilities most companies lack in-house.

Climate Vault Solutions centralises this process, allowing buyers to access projects that have already undergone independent technical review and auditing, without the need to build that capability themselves.

A multi-stage selection process

Sirona’s inclusion followed a structured evaluation process designed to reflect the level of scrutiny expected from institutional buyers.

The process included:

• A detailed RFP covering technology design, MRV systems, and project fundamentals
• An independent third-party audit of Sirona’s project deployment in Kenya and its R&D facility in Belgium
• Final review and approval by the Climate Vault Tech Chamber

The Tech Chamber is composed of scientists from institutions including MIT, Princeton, and Harvard. The acceptance rate sits at approximately 3%.

What this unlocks commercially

Sirona joining the Climate Vault Solutions portfolio is a credibility milestone and provides a route to market with qualified buyers.

As carbon removal markets mature, buyers are increasingly prioritising:

• High-durability removal with credible storage
• Third-party audited projects
• Carbon credits that stand up to scrutiny

Within this context, Climate Vault Solutions functions as a due diligence and procurement layer, reducing friction on both sides: buyers can move faster with pre-vetted supply, and suppliers gain access to qualified demand.

Quote from Kyle Kornack, CEO, Climate Vault Solutions

"I'm thrilled to welcome Sirona to the Climate Vault Solutions CDR Portfolio. Sirona is pioneering a sorbent-agnostic Direct Air Capture approach, and their modular approach represents a critical step toward what DAC has been missing: the ability to prove deployment incrementally and reduce delivery risk over time. Their inaugural project will harness Kenya's renewable energy and geology to drive down the cost of DAC, which the world urgently needs. I'm excited to work alongside this exceptional team as they deliver real, measurable impact in the fight against climate change."

Quote from Thoralf Gutierrez, CEO & co-founder, Sirona Technologies

“Climate Vault Solutions applies one of the most rigorous due diligence processes in the carbon removal market. Being selected reflects the strength of our technology, our MRV approach, and our ability to deliver durable removals at scale. Just as importantly, it gives buyers a straightforward path to access that supply with confidence.”

About Climate Vault Solutions

Climate Vault Solutions is a leading diligence and climate solutions procurement platform connecting institutional and corporate buyers with rigorously vetted, high-quality carbon dioxide removal projects. Guided by the Climate Vault nonprofit's independent Technology Experts Chamber, Climate Vault Solutions maintains a portfolio shaped by independent technical review and multi-phase evaluation, built to meet the scientific, commercial, and disclosure standards demanded by today's climate leaders. For more information, visit climatevault.com or contact partners@climatevault.com. 

About Sirona Technologies

Sirona Technologies develops and operates modular Direct Air Capture systems that permanently remove CO₂ from the atmosphere and store it through geological mineralization. Built in Belgium and deployed globally, Sirona’s systems enable high-credibility carbon removal with durable storage and transparent monitoring, reporting, and verification. Following the commissioning of its first commercial units, Sirona will begin delivering carbon removal credits in 2026.