Who we are

The SIAD Group is an international organization active in four strategic areas: Industrial Gases, Engineering, LPG and Natural Gas, and Healthcare.

With a long-standing tradition and specialized know-how, it offers integrated, customized, and sustainable solutions. Innovation, quality, and the development of people drive every activity.

Synergies among the Group’s companies enable it to tackle even the most complex challenges with agility. The Group’s identity is built on shared values, motivated people, and a vision focused on global growth.

People walking through the SIAD Osio Sopra plant, highlighting teamwork and industrial operations.

Vision and Values of SIAD

We aim to foster the growth and well-being of our customers through research, innovation, and excellent products and services. Our goal is to become increasingly global while remaining deeply committed to our values, our local communities, and the environment.

We have always believed that solidity and growth must align with the values that guide us. We constantly seek original, tailor-made solutions that go beyond standardized approaches and promote synergies across the Group’s various sectors, fueling innovation and technological cross-pollination. Our customers are true strategic partners in this ongoing process of improvement, aimed at meeting their needs in innovative, highly customized, and sustainable ways.

Innovation is at the heart of everything we do.

We remain faithful to the legacy of our founders, Quirino and Bernardo Sestini, who placed great importance on relationships within the value chain and with local communities. We are committed to investing in skill development and building a solid, trustworthy reputation, always focused on creating direct and meaningful relationships with all stakeholders. Numerous projects dedicated to education and cultural promotion reflect our strong local presence and are consistently supported by SIAD and the SIAD Sestini Foundation.

Authenticity is how we cultivate relationships and leave a positive mark on the communities that welcome us.

People are the driving force behind our ability to make a difference—they are the soul of the Group. Our strength lies in the richness of diversity and the expertise of the people who make up SIAD today. The combination of tradition, innovative spirit, commitment to quality, and the variety of projects and activities we pursue are the distinctive elements that make the SIAD Group a unique player in the industrial landscape, both in Italy and internationally.

For SIAD, making a difference means turning today’s challenges into sustainable opportunities for the future.

Code of Ethics

SIAD’s growth and success in the markets have always been aligned with the company’s core principles and values, which are rooted in clarity and transparency. These values are reflected in strict compliance with the law, respect for employees, customers, suppliers, and shareholders, fair competition, a commitment to quality, safety, and environmental protection, and a strong sense of social responsibility.

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Our business

Industrial Gases

Engineering

Healthcare

LPG and Natural Gas

Our Certifications

Quality, workplace safety, and environmental protection are fundamental pillars of the SIAD Group’s strategy. Our commitment to continuous improvement is reflected in updated management systems, monitored processes, and consistent compliance with regulations in the countries where we operate.

Go to Certifications

Quality Management System

UNI EN ISO 9001:2015

Occupational Health and Safety Management System

ISO 45001:2018

Environmental Management System

UNI EN ISO 14001:2015

Food Safety Management System

UNI EN ISO 22000 e/o FSSC 22000

Sustainability

Thanks to corporate policies aimed at pursuing concrete goals in governance, environmental protection, and social responsibility, SIAD places sustainability at the heart of its business model.

Our Commitment

Global Presence

SIAD Worldwide: A Global Network of Innovation

The SIAD Group has an international presence supported by a solid network of offices, agencies, and partners, sustaining its operations in the fields of industrial gases, engineering, healthcare, LPG, and natural gas. This widespread presence reflects our ongoing commitment to innovation, service quality, and close connection to local markets.

Our presence

Industrial workers in high-visibility safety gear walking through a gas plant facility

Join us

We welcome talents who are eager to grow and contribute to shaping our vision of building a solid and increasingly responsible future.

Discover our open positions

SIAD employees seated around a table collaborating with laptops during training