Assystem
Assystem's Overview
Assystem is an independent international engineering group. As a key participant in the industry for over 55 years, Assystem supports its clients in developing their products and managing their capital expenditure throughout the product life cycle. Assystem S.A. employs thousands of experts who are committed to the energy transition. To achieve an affordable low-carbon future, Assystem is committed to the development of low-carbon electricity (nuclear, renewables and electricity grids) and clean hydrogen. The Group is also helping to drive the use of low-carbon electricity in industrial sectors such as transportation. Assystem is also an expert in R&D outsourcing, and in the design and development of complex products for various industrial sectors (transportation, defence, space, life sciences). Its services include project management, design and engineering, digital solutions, and consulting.
Where is Assystem's Headquarters?
HQ Function
Serves as the central hub for global operations, strategic decision-making, corporate governance, and financial management for the Assystem group.
Notable Features:
Located in Tour Egée, a prominent building completed in 1999 in La Défense, Paris's major business district, offering modern facilities and a strategic location.
Work Culture:
The headquarters likely fosters a professional, innovative, and collaborative environment, reflecting Assystem's focus on complex engineering projects and digital transformation. Emphasis on expertise, project delivery, and international cooperation.
HQ Significance:
The Paris headquarters is crucial for coordinating Assystem's international activities, maintaining relationships with key stakeholders, and driving the company's strategic vision in the global engineering market, particularly in energy transition.
Values Reflected in HQ: The choice of a modern, well-connected business district like La Défense reflects Assystem's forward-thinking approach, commitment to excellence, and its role as a major international engineering player.
Location:
Assystem operates in approximately 12 countries across Europe, the Middle East, Asia, and Africa. It supports global clients with a wide range of functions including project management, design and engineering, digital and data services, commissioning, and operations support, primarily for complex infrastructure in regulated industries like nuclear, energy, transportation, and life sciences.
Street Address:
Tour Egée, 9-11 Allée de l'Arche
City:
Courbevoie
State/Province:
Île-de-France
Country:
France
Assystem's Global Presence
Blackburn, Lancashire, United Kingdom
Address: Assystem, Innovation Centre, Greenbank Technology Park, Challenge Way, Blackburn, BB1 5US
To serve key UK clients, contribute to critical national infrastructure projects (including nuclear new build and decommissioning), and leverage local engineering talent.
Bengaluru, Karnataka, India
Address: Assystem Technologies India Pvt. Ltd., Ground Floor, West Wing, Raheja Towers, 26 & 27, Mahatma Gandhi Road, Bengaluru – 560 001
To access a large pool of skilled engineers, provide cost-effective solutions for global projects, and support Assystem's international delivery capabilities for complex engineering challenges.
Riyadh, Saudi Arabia
Address: Assystem Radicon, Olaya Main Road, Tatweer Tower, 10th Floor, Riyadh, 12213
To support major development projects in Saudi Arabia and the wider Middle East region, particularly in the expanding energy and infrastructure sectors, and to contribute to local talent development and energy diversification goals.
Buying Intent Signals for Assystem
Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.
Executive Team of Assystem
As of April 2025, Assystem' leadership includes:
Investors of Assystem
Assystem has been backed by several prominent investors over the years, including:
Executive New Hires/Exits in the Last 12 Months
Assystem announced a key leadership transition effective May 2024: Stéphane Aubarbier, formerly COO, was appointed CEO, while Dominique Louis transitioned from CEO to Non-Executive Chairman. This marks a significant planned evolution in the company's top leadership.
Departures
New Appointments:
Technology (Tech Stack) used by Assystem
Discover the tools Assystem uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.
Assystem Email Formats and Examples
Assystem commonly uses standard corporate email formats. The most prevalent patterns typically involve a combination of the employee's first initial and last name, or first name and last name, at the @assystem.com domain.
[first_initial][last_name]@assystem.com (e.g., jdoe@assystem.com) or [first_name].[last_name]@assystem.com (e.g., jane.doe@assystem.com)
Format
saubarbier@assystem.com
Example
85%
Success rate
News and media
Assystem Official Website / Financial Press Release • March 7, 2024
Assystem Reports Strong Growth in 2023 Full-Year Results Driven by Energy Transition Activities
Assystem announced robust financial performance for the full year 2023, with consolidated revenue of €571 million, up 13.7%. The growth was primarily driven by its activities in the nuclear sector (up 17.3%) and energy transition projects. The company highlighted increased demand for its engineering services and digital solutions, and confirmed its financial targets for 2024....more
Assystem Official Website • November 16, 2023
Assystem and Tractebel to support KHNP and KEPCO E&C in developing APR1000 nuclear reactor design for Europe
Assystem, in consortium with Tractebel, has been selected by Korea Hydro & Nuclear Power (KHNP) and KEPCO E&C to provide engineering support for the adaptation of the APR1000 nuclear reactor design to European standards. This collaboration aims to facilitate the reactor's potential deployment in Europe, leveraging Assystem's extensive nuclear engineering expertise and knowledge of European regulations....more
Highperformr’s free tools for company research
Explore Employees by Region or Country
See where a company’s workforce is located, by country or region.
View Funding Details
View past and recent funding rounds with amounts and investors.
Understand Revenue Insights
Understand company revenue estimates and financial scale.
Track Active Job Openings
Track active roles and hiring trends to spot growth signals.
Review Product and Offerings
Discover what a company offers—products, platforms, and solutions.
Get SIC or NAICS Codes
Get the company’s official SIC and NAICS classifications.
Analyze Website Traffic Trends
Analyze visitor volume, engagement, and top traffic sources.
Discover Social Profiles and Engagement
Explore LinkedIn, Twitter, and other active social profiles.
Identify Top Competitors
Identify top competitors based on similar business traits.
Research and Discover Companies with Highperformr — Smarter, Faster
Explore companies in depth — from the tech they use to recent funding, hiring trends, and buyer signals — all in one powerful view.
Highperformr AI helps you surface the right accounts and enrich your CRM with verified company and contact insights, so your teams can prioritize and engage faster.
- Track intent signals to find buyers who are actively in-market
- Enrich contacts and companies instantly, no need to switch tools
- Automate workflows to stay ahead of every change
- Connect your CRM & tools for seamless data sync and activation
Thousands of companies, including Assystem, are just a search away.