Verified Nov 2026
Metal Fabrication
·
Wilnsdorf, North Rhine-Westphalia
·
Since 1914
Siegenia Group is a privately held German manufacturer of hinge, ventilation, and building hardware, headquartered in Wilnsdorf, North Rhine-Westphalia. Founded in 1914, the company employs between 1,000 and 5,000 people and reports estimated revenue of $50-100M. It serves the automotive, electronics, construction, plumbing-hardware, renewable-energy, and industrial-equipment sectors. Its product range includes window and door systems, ventilation solutions, and building automation, and in 2026 it introduced a hardware range designed in the UK, its first of that kind.
Siegenia Group at a glance
Revenue
$50-100M
Est. band
Employees
1,000-5,000
Founded
1914
Headquarters
Wilnsdorf, North Rhine-Westphalia
Certifications
ISO 14001 · ISO 9001
Industries
Automotive
Electronics
Construction
Plumbing & Hardware
Renewable Energy
Industrial Equipment
STABILITY SIGNALS
Established & active
112 years in operation (founded 1914).
Holds ISO 14001, ISO 9001 certification(s) per public sources.
Overview
Siegenia Group is a privately held German manufacturer of hinge, ventilation, and building hardware, headquartered in Wilnsdorf, North Rhine-Westphalia. Founded in 1914, the company employs between 1,000 and 5,000 people and reports estimated revenue of $50-100M. It serves the automotive, electronics, construction, plumbing-hardware, renewable-energy, and industrial-equipment sectors. Its product range includes window and door systems, ventilation solutions, and building automation, and in 2026 it introduced a hardware range designed in the UK, its first of that kind.
At a glance
Attribute | Detail |
|---|---|
Founded | 1914 |
Headquarters | Wilnsdorf, North Rhine-Westphalia |
Employees | 1,000-5,000 |
Revenue | $50-100M (estimated) |
Primary capability | Metal Fabrication |
Certifications | ISO 14001 · ISO 9001 |
What Siegenia Group makes
The company holds ISO 9001 and ISO 14001 certifications and offers hinge technology, wall and window ventilators, motorized home automation systems, and KNX-compatible ventilation controls.
Products and capabilities described on the company's own site include Plastic, Glass, Steel, Interior, Assembly, Tooling (source: siegenia.com).
Certifications
Siegenia Group is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
ISO 14001 — siegenia.com
ISO 9001 — siegenia.com
Latest developments
2026-10-05 — SIEGENIA launches first ever UK-designed hardware range | Glass & Glazing Products Magazine (GGP) (ggpmag.com)
2026-05-29 — Starting training 2026: SIEGENIA is investing in the skilled staff of tomorrow (siegenia.com)
2026-05-29 — Design hotel with KNX-controlled ventilation technology from SIEGENIA (siegenia.com)
2026-04-22 — SIEGENIA presenta sus últimas innovaciones en VETECO 2026 junto a VBH Iberia (siegenia.com)
2026-04-02 — "Next Level" Power to Innovate (siegenia.com)
2025-12-10 — Siegenia erweitert Portal HS Produktspektrum - Glas Fenster Fassade (gff-magazin.de)
Company details
The company is privately held, with estimated revenue of $50-100M, and reports manufacturing plants in Germany, Poland, and China. Siegenia Group was founded in 1914, has an estimated 1,000-5,000 employees, and is headquartered in Wilnsdorf, North Rhine-Westphalia. On the LightSource stability read it is rated "Established & active": 112 years in operation (founded 1914). Holds ISO 14001, ISO 9001 certification(s) per public sources.
Frequently asked questions
What does Siegenia Group make?
Siegenia Group is a privately held German manufacturer of hinge, ventilation, and building hardware, headquartered in Wilnsdorf, North Rhine-Westphalia. Founded in 1914, the company employs between 1,000 and 5,000 people and reports estimated revenue of $50-100M. It serves the automotive, electronics, construction, plumbing-hardware, renewable-energy, and industrial-equipment sectors. Its product range includes window and door systems, ventilation solutions, and building automation, and in 2026 it introduced a hardware range designed in the UK, its first of that kind.
Where is Siegenia Group headquartered?
Siegenia Group is headquartered in Wilnsdorf, North Rhine-Westphalia (1 Industriestrasse, Wilnsdorf, North Rhine-Westphalia, 57234).
When was Siegenia Group founded?
Siegenia Group was founded in 1914.
How big is Siegenia Group?
Siegenia Group has an estimated 1,000-5,000 employees, with revenue in the $50-100M range (estimated).
What certifications does Siegenia Group hold?
Siegenia Group lists ISO 14001 · ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.
Related suppliers
Explore other suppliers in the LightSource directory:
Last verified Nov 2026. Is this your company? Request a correction.
Location & contact
Evaluating suppliers like these?
This profile comes from a public-data sample of around 1,000 companies. Book a demo to see the full LightSource marketplace and supplier discovery platform — 1M+ credible suppliers, with AI-run sourcing events.