# Markus A. Helfenstein

> Swiss commercial-register person record from Swiss Graph (graph.swiss),
> sourced from the Swiss Official Gazette of Commerce (SHAB/SOGC).
> Canonical profile: https://graph.swiss/people/markus-a-helfenstein/2591533

## Registry facts

- Residence: Zürich
- Nationality: CH
- Status: inactive

## Mandates (1)

- Nortel Networks AG in Liquidation (CHE-105.838.726) — member of the board + general manager — individual signing authority (company no longer active)

---

Machine-readable variant of https://graph.swiss/people/markus-a-helfenstein/2591533: registry facts only.
Site overview for agents: https://graph.swiss/llms.txt