LEONI Fiber Optics GmbH develops, manufactures and sells fiber optic cables of all kinds and related components and provides system consulting for fiber optic systems; the corporate purpose explicitly highlights plastic optical fibers. The company is organized into two business fields (FO-CABLES and FO-SYSTEMS) and operates production sites in Neuhaus-Schierschnitz, Roth and Lederhose. The product range includes harnessing/assembly (Konfektionen), micro-duct cables, mini-cables, optical switches/splitters and fiberoptic probes for medical applications; products for FttH and PROFINET-standardized fiber cables are specifically mentioned. Key end markets are Automation & Drives, medical technology, power transmission/distribution and telecommunications, and the main regions of sale are Germany and the rest of Europe. WEINERT Fiber Optics GmbH is a family business.
die Entwicklung, Herstellung und der Vertrieb von Lichtwellenleiterkabeln aller Art und Komponenten hierzu, insbesondere Kunststofflichtwellenleiter sowie Systemberatung für Lichtwellenleitersysteme.
Converted using the official Destatis and Eurostat correspondence tables; ISIC Rev. 4 is the United Nations' international industry classification.
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Source: German Commercial Register (Handelsregister) Jena Local Court, HRB 305723 (as of 26 October 2026)
| Name | Type | City |
|---|---|---|
| Michael Lohneis | Geschäftsführer(in) | Ebensfeld |
| Florian Schercher | Geschäftsführer(in) | Berlin |
| Andreas Weinert | Geschäftsführer(in) | Föritztal OT Neuhaus-Schierschnitz |
Source: German Commercial Register (Handelsregister) Jena Local Court, HRB 305723 (as of 26 October 2026)
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2007 | €22,154,705 | €0 | €14,895,450 | — |
| 2006 | €18,122,000 | €0 | €8,761,777 | — |
| 2005 | €14,131,000 | €0 | €4,349,000 | — |
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Source: German Commercial Register (Handelsregister) Jena Local Court, HRB 305723 (as of 26 October 2026)
| Cost type | Amount | Share |
|---|---|---|
| Cost of Goods Sold | €15,236,662 | 74.6% |
| Selling Costs | €3,263,818 | 16.0% |
| Admin Costs | €1,235,925 | 6.0% |
| R&D Costs | €700,021 | 3.4% |
