About Us

For over 200 years, we have been shaping the future of wire.

We combine technological innovation with craftsmanship and lasting responsibility. We use our independence to keep enabling solutions that meet the ever-changing demands of our customers and society. As a team, we set new standards in quality, reliability and partnership every single day.

Locations of the BenderWire Group
The Group

Five specialists under one roof.

BenderWire Group brings together five independent wire specialists: Hagener Feinstahl (cold-drawn wire 0.20 – 15.00 mm, reliable supply), Stamm Feindrahtwerk (fine wire down to 11 µm, including for medical technology), Sassenscheidt Feindrahtwerk (ropes, strands), Tri Star Metals and Siri Wire (USA). What unites them all is a focus on stainless steel — across the full range. Each plant is a specialist in its own right — and together with our melting partners for special alloys and speciality materials, we cover the entire value chain.

Hagener Feinstahl

Cold-drawn wire 0.20 – 15.00 mm · reliable supply

Stamm Feindrahtwerk

Fine wire down to 11 µm · medical technology

Sassenscheidt Feindrahtwerk

Ropes · strands

Tri Star Metals

USA · specialty wire

Siri Wire

USA · precision wire

Timeline

Over two centuries of wire.

  1. 1815
    Founded
    Heinrich Stamm GmbH
  2. 1912
    Founded
    Sassenscheidt & Co. GmbH
  3. 1932
    Founded
    Hagener Feinstahl (Bender family)
  4. 1985
    Founded
    Tri Star Metals LLC (USA)
  5. 1992
    Founded
    Siri Wire Co. (USA)
  6. 2006
    Joined the group
    Heinrich Stamm becomes part of the group
  7. 2009
    Joined the group
    Tri Star Metals becomes part of the group
  8. 2013
    Joined the group
    Sassenscheidt becomes part of the group
  9. 2025
    Joined the group
    Renamed as BenderWire Group · Siri Wire becomes part of the group
200+
Years
5
Locations
0.011 – 15 mm (11 µm)
Range
~2,500 t
Stainless wire stock
family-run
Independent
Region & Responsibility

Rooted in South Westphalia. At home in the world.

Our plants in Hagen, Iserlohn and Nachrodt-Wiblingwerde have been part of their region for generations — as an employer, a training company and a reliable neighbor. We do not think in quarters, but in generations. That shapes how we do business: electrically produced stainless steel, certified energy management (ISO 50001), and an honest approach to change.

Contact

Tell us your specification — we will answer in English.

General enquiries
info@benderwire.group
Sales & quotations
vertrieb@benderwire.group