ABOUT KLAPPIR
Klappir means bedrock.
It's an Icelandic word. It's also a precise description of what we build. Since 2014, we've been building the data infrastructure that makes resource data structured, traceable, and exchangeable across organisations, industries, and borders.
Where it started
It kept appearing in every sector the founding team worked in: organisations had operational data, but it didn't work. Not between systems. Not between departments. And certainly not between organisations.
In 2014, a family founded Ark Technology in Reykjavík, digitising environmental records in the maritime industry, logbooks and compliance data that had lived in paper and disconnected spreadsheets for decades. Kristján Hall, now Klappir's CTO, was part of the original team. The following year, they established Klappir to extend the same logic to municipalities, institutions, and businesses on land.
The pattern was the same everywhere: energy data in one format, waste data in another, supplier data in a third. Fragmented, inconsistently structured, and untrustworthy the moment it crossed an organisational boundary.
That observation became the foundation of everything Klappir has built since.
What we recognised
Most sustainability software was built to collect and present data. It assumed the underlying data was already clean, comparable, and consistently defined. It wasn't. It still isn't, not at the scale required by modern regulatory frameworks, value chain disclosure, or investor-grade reporting.
Financial data has solved this. It flows between organisations reliably because it's built on shared standards, standardised account structures, common protocols, and auditable trails from transaction to statement. Resource data, energy, fuel, waste, transport, materials, and supplier activity have never had the equivalent.
That's what Klappir is building.
What we built
Klappir is a canonical data platform for sustainability and resource management. At its core is a UNSPSC-based canonical data model, a standardised structure that defines how resource data is classified, converted, and exchanged. Every transaction tagged. Every number traceable. Every data point structured the same way, whether it comes from an ERP, a meter, a supplier, or an invoice.
The platform captures operational data, structures it automatically against that common standard, calculates environmental impacts, and produces reporting that withstands external scrutiny. Frameworks change, CSRD, GRI, CDP, ESRS, but the data foundation beneath them doesn't need to. The infrastructure is regulation-agnostic by design.
Today, more than 700 organisations across aviation, banking, retail, shipping, real estate, and the public sector use Klappir to manage sustainability as a data system, not a reporting exercise. We listed on Nasdaq First North Iceland in 2017, and more than 300 shareholders have joined us since.
Where we're going
The next problem is inter-organisational.
Scope 3 & value chain
Scope 3 disclosures depend on supplier data that doesn't travel cleanly between organisations. Value chain reporting requires a shared language that doesn't yet exist at scale.
Shared standard
Resource data that flows between organisations as reliably as financial data flows through accounting systems, collected once, structured to a common standard, and used everywhere.
Inter-organisational data infrastructure
Not a new reporting tool. The shared standard that makes the data underneath all reporting actually work.
Our people
We're a team of engineers, sustainability specialists, data architects, and domain experts, headquartered in Reykjavík and Copenhagen, with a growing network of partners across Europe.
Bring clarity to sustainability through trusted data infrastructure, so that organisations can manage their environmental impact with the same rigour, traceability, and confidence they bring to financial management.
Build the infrastructure standard for global resource data exchange. As sustainability disclosure becomes mandatory across markets and resource data becomes a strategic asset, we are building the layer that enables collecting that data once, structuring it to a common standard, and using it across every framework and regulatory requirement an organisation faces.
We are innovative. We are professionals. We are caring.
The hard part isn't the technology, it's building something organisations can actually trust with the data that underpins their most important decisions.
We evolve the platform in step with regulation, technology, and the actual needs of the organisations that use it.
Data integrity is non-negotiable. Every aspect of the platform reflects the same standard of rigour we expect from financial systems.
We act with care toward our customers, our colleagues, and the broader environment. Sustainability is not a product feature. It's the reason this infrastructure exists.
Ready to talk?
Want to speak with the team? Book a walkthrough or reach us directly through the contact page.