Overview

Polysoude S.A.S is a manufacturer of orbital welding equipment and automated welding solutions, including TIG welding and weld overlay (cladding) systems. Founded in 1961 and headquartered in Nantes, France, the company employs roughly 200-500 people, with an estimated revenue band of $10-50M. It is privately held and serves automotive, electric-vehicle, electronics, medical, plumbing-hardware, and renewable-energy sectors. In 2026 it announced a reinvestment in its historic Nantes site, and it reports that about 85% of its business is conducted internationally.

At a glance

What Polysoude S.A.S makes

The company offers orbital and mechanized welding equipment, weld overlay systems, equipment rental, operator training, and technical support, and holds ISO 9001 certification.

Products and capabilities described on the company's own site include Welding, Assembly, Electronics, LED, Semiconductor, Aluminum, Steel (source: polysoude.com).

Certifications

Polysoude S.A.S is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:

• ISO 9001 — polysoude.com

Latest developments

• 2026-11-02 — Suministro de equipos de soldadura Tig Narrow Gap
  | Adjudicado a POLYSOUDE S.A.S | CashStalker (cashstalker.com)

• 2026-10-08 — 𝗣𝗢𝗟𝗬𝗦𝗢𝗨𝗗𝗘 × 𝗣𝗥𝗢𝗧𝗘𝗠 | 𝗔 𝗖𝗢𝗟𝗟𝗔𝗕𝗢𝗥𝗔𝗧𝗜𝗢𝗡 𝗙𝗢𝗥 𝗖𝗨𝗦𝗧𝗢𝗠 𝗦𝗢𝗟𝗨𝗧𝗜𝗢𝗡𝗦 | Polysoude S.A.S (linkedin.com)

• 2026-10-01 — Congratulations to our distribution partner, Morgan Industrial Technology, on the recent groundbreaking for your expansion in Ozark, Missouri! | Polysoude USA (linkedin.com)

• 2026-09-18 — Polysoude invests in its historic Nantes site | Polysoude (polysoude.com)

• 2026-05-13 — New Partnership – Expanding in Eastern Europe | Polysoude S.A.S (linkedin.com)

Company details

Polysoude is privately held and its 2026 activity includes a publicly announced investment in its Nantes site and a distribution partnership in Ozark, Missouri. Polysoude S.A.S was founded in 1961, has an estimated 200-500 employees, and is headquartered in Nantes, Pays de la Loire. On the LightSource stability read it is rated "Established & active": 65 years in operation (founded 1961). Holds ISO 9001 certification(s) per public sources.

Frequently asked questions

What does Polysoude S.A.S make?

Polysoude S.A.S is a manufacturer of orbital welding equipment and automated welding solutions, including TIG welding and weld overlay (cladding) systems. Founded in 1961 and headquartered in Nantes, France, the company employs roughly 200-500 people, with an estimated revenue band of $10-50M. It is privately held and serves automotive, electric-vehicle, electronics, medical, plumbing-hardware, and renewable-energy sectors. In 2026 it announced a reinvestment in its historic Nantes site, and it reports that about 85% of its business is conducted internationally.

Where is Polysoude S.A.S headquartered?

Polysoude S.A.S is headquartered in Nantes, Pays de la Loire (2 Rue Paul Beaupere, Nantes, Pays de la Loire, 44300).

When was Polysoude S.A.S founded?

Polysoude S.A.S was founded in 1961.

How big is Polysoude S.A.S?

Polysoude S.A.S has an estimated 200-500 employees, with revenue in the $10-50M range (estimated).

What certifications does Polysoude S.A.S hold?

Polysoude S.A.S lists ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.

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Last verified Nov 2026. Is this your company? Request a correction.