Delivering working systems, not workshops.
Open Beta designs and builds trustworthy data systems for banks, insurers, public institutions and infrastructure operators – from first prototype to production, handed over to your team to run.
Behind it are Matthias Sammer and Martin Wieser, with decades in data engineering, system architecture and production delivery.
What we do
We build production systems where every output can be traced back to its source, checked against the rules that apply, and audited. No black box.
Risk and reporting for finance
Rebuilding vendor models and spreadsheets into open, audit-ready systems for ICAAP, Pillar 3, and climate risk.
Auditable pipelines & independent checks
Tying scattered reports, filings, and geospatial feeds back to verifiable source documents, satellite data, and outside evidence.
AI for regulated environments
Knowledge graphs, retrieval, and neuro-symbolic validation built to sit inside regulated workflows and stand up to supervisory scrutiny.
Our methods are proven first in funded research under national and European programmes – including FFG, Horizon Europe, and ESA – before they go anywhere near a client's production system.
How we work
We take on defined builds, not open-ended consulting – and hand over a running system, not a report. Three ways to start:
01
Focused Analysis – A defined question, fixed scope, two to four weeks.
02
Applied R&D – Joint research or prototyping to turn complex methods into a production layer.
03
Co-Development – We build the capability alongside your team and hand it over.
Everything runs under NDA and GDPR, on-premise if required, built and delivered directly by the two of us.
Our work
Every system we build runs on LuLarge – our internal data-intelligence platform that enforces strict lineage from source document to final decision metric.
Our Data Tales follow individual pieces of work from raw source material to a defensible conclusion:
DATA TALE · GREEN FINANCE EVIDENCE
On the trail of green capital
Three EU-funded projects checked against satellite data: a clean confirmation in Spain, a gap between report and reality in France, a partial result in Croatia.
DATA TALE · CLIMATE RISK
Translating physical climate risk into verifiable banking decisions
A platform example for physical climate-risk analysis that brings climate, geospatial, risk and financial data into one structured assessment workflow – from physical risk indicators through to monetary decision metrics for real-estate and loan portfolios.
DATA TALE · SOURCE-LINKED DATA
From scattered bond reports to verifiable ESG data
LuLarge turns bond reports, frameworks, impact disclosures and public sources into source-linked ESG data streams. Values, units, sources, context and review logic all stay traceable together.
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Bring us a claim or a figure you are accountable for and cannot trace. We will show you what a traceable version of it looks like.