# Stahl- und Apparatebau Hans Leffer GmbH & Co. KG

Company profile

- Legal form: GmbH & Co. KG
- Seat: Saarbrücken, Germany

Based on the notices and sources Inteliwert covers; not a complete record. Last checked 1 November 2026, 06:44 (UTC+01:00).

## Identifiers

- LEI: 529900R06B0RY75GK540 ([GLEIF record](https://search.gleif.org/#/record/529900R06B0RY75GK540))
- Register entry: AMTSGERICHT SAARBRÜCKEN HRA 9978

As the covered sources state them.

## Track record in public tenders

Awards in the covered notices over the last 36 months, per CPV division.

No award found in the indexed notices of the last 36 months.

### Awards

No award found in the indexed notices.

## Certifications and prequalification

- **DIN EN 1090** (self-declared on the company’s website): “EN 1090-1 WPK / EN 1090-2 EXC1–EXC4 – Ausführung von Stahl- und Aluminiumtragwerken”, [Source](https://leffer.de/qualitat-zertifizierungen/), checked 1 Nov 2026
- **ISO 3834** (self-declared on the company’s website): “EN ISO 3834-2 – Schweißtechnische Qualitätsanforderungen”, [Source](https://leffer.de/qualitat-zertifizierungen/), checked 1 Nov 2026
- **ISO 45001** (self-declared on the company’s website): “ISO 45001:2018 & SCC – Arbeits- und Gesundheitsschutzmanagement”, [Source](https://leffer.de/qualitat-zertifizierungen/), checked 1 Nov 2026
- **ISO 50001** (self-declared on the company’s website): “ISO 50001:2018 – Energiemanagementsystem”, [Source](https://leffer.de/qualitat-zertifizierungen/), checked 1 Nov 2026
- **ISO 9001** (self-declared on the company’s website): “Unser nach ISO 9001 zertifiziertes Qualitätsmanagementsystem entspricht internationalen Standards, wobei Präzision und Zuverlässigkeit in jedem Prozess verankert sind.”, [Source](https://leffer.de/qualitat-zertifizierungen/), checked 1 Nov 2026
- **ISO/IEC 17025** (self-declared on the company’s website): “ISO 17025 – Prüflabor-Kompetenz und Kalibrierfähigkeit”, [Source](https://leffer.de/qualitat-zertifizierungen/), checked 1 Nov 2026
- **SCC** (self-declared on the company’s website): “ISO 45001:2018 & SCC – Arbeits- und Gesundheitsschutzmanagement”, [Source](https://leffer.de/qualitat-zertifizierungen/), checked 1 Nov 2026

A certification missing here is unknown, not absent.

## Website and LinkedIn

- Website: [https://www.leffer.de/](https://www.leffer.de/) (verified by its Impressum, checked 1 Nov 2026)

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## About this profile

Each fact on this page shows its source: a public notice, an open-data register (GLEIF, Wikidata) or the company’s own website. Inteliwert does not rate companies and does not judge eligibility, fit or chances.

**Based on the notices and sources Inteliwert covers; not a complete record.** Last checked 1 November 2026, 06:44 (UTC+01:00).

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