Overview

FAYAT FONDATIONS is a French specialist in special foundations and ground consolidation, headquartered in Grigny, Ile-de-France. Founded in 1965, it employs roughly 500 to 1,000 people and reports an estimated revenue band of $100-250M. It is a division of the Fayat Group, an independent construction group. The company serves the construction, automotive, electric-vehicle and industrial-equipment sectors. In January 2026 its two foundations companies, Sefi-Intrafor and Franki Fondation, were merged, and in October 2026 it reported completing the first pile on the Neomat CAM project.

At a glance

What Fayat Fondations | Fayat Group makes

The company holds ISO 9001, ISO 14001 and ISO 45001 certifications and works in special foundation methods such as diaphragm walls, piles, soil mixing, underpinning, grouting and jet grouting.

Certifications

Fayat Fondations | Fayat Group is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:

• ISO 14001 — gifen.fr

• ISO 45001 — gifen.fr

• ISO 9001 — gifen.fr

Latest developments

• 2026-10-19 — [ACTU CHANTIER] Fayat Fondations réalise le premier pieu du projet Neomat CAM! | FAYAT FONDATIONS | FAYAT Group (linkedin.com)

• 2026-05-20 — Fayat Fondations : «Nous sommes adossés à un groupe solide, cela nous rend résilients » (lefigaro.fr)

• 2026-04-27 — Au cœur du chantier vert : Fayat Fondations en action - Fayat Fondations (fayat.com)

• 2026-04-22 — Fondations spéciales - Construction… — marché public (France) | El Vínculo (el-vinculo.com)

• 2026-01-16 — Fusion Sefi‑Intrafor & Franki Fondation | Fayat Group (fayat.com)

• 2025-12-24 — Fayat Fondations : une signature unique en multi-techniques - CONSTRUCTIONBTP (constructionbtp.com)

Company details

It operates as a division of the privately held Fayat Group, and its estimated revenue and headcount bands are unverified approximations. Fayat Fondations | Fayat Group was founded in 1965, has an estimated 500-1,000 employees, and is headquartered in Grigny, Ile-de-France. On the LightSource stability read it is rated "Established & active": 61 years in operation (founded 1965). Holds ISO 14001, ISO 45001, ISO 9001 certification(s) per public sources.

Frequently asked questions

What does Fayat Fondations | Fayat Group do?

FAYAT FONDATIONS is a French specialist in special foundations and ground consolidation, headquartered in Grigny, Ile-de-France. Founded in 1965, it employs roughly 500 to 1,000 people and reports an estimated revenue band of $100-250M. It is a division of the Fayat Group, an independent construction group. The company serves the construction, automotive, electric-vehicle and industrial-equipment sectors. In January 2026 its two foundations companies, Sefi-Intrafor and Franki Fondation, were merged, and in October 2026 it reported completing the first pile on the Neomat CAM project.

Where is Fayat Fondations | Fayat Group headquartered?

Fayat Fondations | Fayat Group is headquartered in Grigny, Ile-de-France (9 Rue Gustave Eiffel, Grigny, Ile-de-France, 91350).

When was Fayat Fondations | Fayat Group founded?

Fayat Fondations | Fayat Group was founded in 1965.

How big is Fayat Fondations | Fayat Group?

Fayat Fondations | Fayat Group has an estimated 500-1,000 employees, with revenue in the $100-250M range (estimated).

What certifications does Fayat Fondations | Fayat Group hold?

Fayat Fondations | Fayat Group lists ISO 14001 · ISO 45001 · 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.