About
ALTI-O vision
From the Alps, our ambition is to ensure French production of essential equipment for the nuclear, defense, steel, and energy sectors. ALTI-O brings together rare expertise to offer a sovereign, reliable, and sustainable alternative.
Our goal: to build an independent industrial group capable of securing these critical assets and, by 2030, becoming a French benchmark in mechanical engineering.
our missions
Bringing together rare and historic French mechanical expertise, designing critical equipment, and supporting major global clients with a reliable, integrated, and agile organization: this is our mission.
Design and manufacture high-criticality solutions
Unite engineering, machining, welding, and valves within a single industrial chain
Preserve century-old skills and ensure their transmission
OUR VALUES
Industrial sovereignty: Mastering critical know-how, securing value chains, and ensuring long-term industrial independence.
Excellence: Designing and manufacturing durable, robust, and traceable solutions for complex industrial environments.
Entrepreneurial responsibility: Building strong, sustainable businesses with a long-term vision, serving our customers, our teams, and the regions in which we operate.
Our commitment
Act with rigor, produce with excellence, and contribute to industrial sovereignty
our Governance
The governance of ALTI-O is based on a committed COMEX close to the field. It brings together the site directors, the Administrative and Financial Director, the QSE Group manager and the President.
This organization promotes collective management and responsiveness, decisions rooted in industrial reality and a constant alignment between performance, QSE requirements and the strategic vision of the group.
Our story
An industrial group born and rooted in the Alps, based in the Auvergne-Rhône-Alpes region and open to the world (also present in Shanghai).
A century of French engineering. A trajectory towards sovereignty.
key dates
1921: Creation of the GUICHON valve manufacturing plant in Aix-les-Bains (73), France
1931: Creation of SCCM ALP in Chambéry (73), France
1974: Birth of CLESID Ingénierie, precursor to CLESID LORBER in 2012, Saint-Chamond (42)
2007: Creation of Guichon Shanghai, a joint venture with a Chinese partner, to enter the Chinese market
2019: Creation of SDIH by Guillaume PASQUIER, takeover and transformation of SCCM ALP
2024: Takeover of GUICHON VALVES, becoming GUICHON VALVES ORIGIN
2025: Equity stake acquired in CLESID LORBER becomes ARCINNOV Technologies
2025: Birth of the ALTI-O Group, a sovereign industrial integrator
Our production sites
ALTI-O Europe (France sites)
SCCM ALP – Cognin (73) : Equipped with a 2,200 m² mechanical workshop dedicated to large-scale welded structures, special steel & energy equipment.
GUICHON VALVES ORIGIN – Chambéry (73) : 4,000 m² machining workshop with CNC machines; a center of excellence in custom valve design for industries with complex constraints, including petrochemical, chemical, nuclear, defense, and cryogenics.
ARCINNOV Technologies – Loire (42) : Engineering office and integration of complex metallurgical equipment.
ALTI-O group – Chambéry (73) : Strategic management, finance, and industrial integration.
ALTI-O Asia (China site)
Guichon Shanghai (Joint Venture) – Shanghai, China: Technical support and market development workshop serving China and Asia since 2007.
Our Other Global Representations:
A network of over 40 agents and distributors worldwide, built over several decades.
