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Leoni AG is a German automotive supplier operating two main lines: custom wiring harnesses and complex vehicle wiring systems (including high-voltage cabling for EVs/hybrids), and a separate Wire & Cable Solutions division making standardized cables, special cables, wires/strands, optical fibers, and energy-distribution components for automotive, industrial, medical and telecom customers.
Named counterparties identified by open-source research and written only where a primary source states the relationship — never inferred from sector or co-mention. 1 supplier. This is a partial view: it covers the relationships we could evidence, not the company's full supply base.
ATLAS-L4 autonomous-truck research consortium (MAN as project lead/OEM, German federal-ministry-funded, concluded May 2025): Leoni ('Europe's largest wiring harness manufacturer' per its own release) developed the high-availability wiring harness, power distributors and redundant cable sets for MAN's Level-4 autonomous truck. This is a named, dated, sourced R&D-partnership relationship, not confirmed as an ongoing commercial series-production supply contract -- recorded as the clearest currently-disclosed Leoni-OEM counterparty pair.
Scope. Absence of a counterparty here is not evidence that none exists — most commercial sourcing is confidential and never becomes public. Rows without a share figure mean no share was disclosed, not that the relationship is small.
Every exposure is read as a buyer dependency; the top 3 are its binding chokepoints.
As a buyer, policy pressure across its consumed materials is flat.
Descriptive trend in official policy actions on this company’s materials — a policy-pressure trend, not a price or trading signal. No forward probability is implied. Direction is measured on actions we have discovered, and discovery lags events: where the recent window is too thin to support a calm reading, the row says coverage-limited instead of easing.
No actions in the register have named or swept this company in the last 24 months.