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whoami

Like the Linux command — who we are, what we do, and what we look for.

Who we are​

OiCOS is Viktor Winschel and Eduard Bretthauer. Together we build and run the company and the OiC.OS modeling service.

Viktor Winschel is an economist and systems engineer. He earned his doctorate at the University of Mannheim and has published in Econometrica and at the ACM/IEEE Symposium on Logic in Computer Science, on game theory and computation. For more than twenty-five years he has built systems that had to work in the real economy: derivative portfolios, digital twins at Volkswagen and E3DC, supply-chain finance at Traxpay, and regional platforms — from ERP and logistics to the design of governance.

Eduard Bretthauer is CEO of OiCOS. With Viktor he shapes the modeling service, customer engagements, and how Acc · Dec · Gov twins land beside ERP, CRM, APS, WMS, and TMS in practice.

Renée Menéndez is a co-researcher on monetary theory and a member of the research department. His work on book money, credit, and MoMaT (with Viktor) is the theoretical foundation behind OiC.OS — see Renée Menéndez and Viktor Winschel.

What we do​

We deliver a modeling service: customised Acc · Dec · Gov systems — verified accounting, smart-contract governance, and modern agents — not another ERP integration layer. Contracts, accounts, and decisions stay one object: from a liquidity pool in a supply chain to closing the books in a currency area. You can run the answer before you sign it.

Three layers on one spine: accounting (QEB) that closes in real time, decisions that learn from outcomes, and governance that blocks violations before money moves — compliant by design. Workflow: compose, run, redesign — in consulting with the workbench. Flagship LiquiPool; banking spine (Central) Banking (einbank → dreibank). Verification: Verification & Bench.

Further reading: Modeling Service · Engagement · Technology · Platform · Business cards.

What we look for​

We are not building a community programme. We look for projects.

Projects where a digital twin must keep contract, ledger, and policy aligned — liquidity pools, group treasury, supply-chain finance, crypto rails on verified books, international balances. Teams that bring domain knowledge and market access; we contribute the Acc · Dec · Gov spine and co-build the customer world.

Where capital helps, we look for investors who fund those projects and the platform under them — so the next twin does not start from zero.

If you have a project or want to build one with us: contact@oicos.systems.