Insights

Sustainable Energy Focus Assystem's strong commitment to accelerating the energy transition through nuclear and renewable energies positions it as a key partner for clients seeking expertise in green infrastructure development and low-carbon solutions, opening sales opportunities in sustainable energy projects and related digital transformation services.

Digital Innovation Leadership The company's development of advanced digital twins, 3D modeling, and AI applications for nuclear reactors indicates a strategic shift towards digital solutions, creating prospects for selling digital transformation tools and consulting services to energy industry players looking to enhance operational efficiency.

Strategic Growth Moves Recent office expansions and acquisitions, such as the purchase of Mactech Energy Group and the UK office growth, demonstrate Assystem’s active expansion strategy, offering opportunities to collaborate with new regional clients and leverage its increased footprint in nuclear engineering markets.

Industry Recognition & Competence Assystem’s recognition through awards and leadership rankings in the nuclear sector highlights its technical expertise and reputation, making it a compelling partner for organizations seeking reliable engineering solutions and innovative safety and risk management services.

Partnership & Collaboration Assystem’s collaborations with global industry leaders like Rolls Royce and Naarea showcase its capacity to joint venture on cutting-edge projects, presenting opportunities to propose joint innovation initiatives, tailored engineering services, and customized digital solutions to similar clients in nuclear and energy sectors.

Assystem Tech Stack

Assystem uses 8 technology products and services including QuickBooks, Prometheus, NetApp, and more. Explore Assystem's tech stack below.

  • QuickBooks
    Accounting And Finance
  • Prometheus
    Data Management
  • NetApp
    Data Management
  • ISO/IEC 27001
    Governance, Risk And Compliance
  • Prototype
    Javascript Frameworks
  • Oracle Primavera Cloud
    Project Management
  • New Relic
    Real User Monitoring
  • Google Analytics
    Web Analytics

Media & News

Assystem's Email Address Formats

Assystem uses at least 1 format(s):
Assystem Email FormatsExamplePercentage
FLast@assystem.comJDoe@assystem.com
70%
First.Last@assystem.comJohn.Doe@assystem.com
16%
First@assystem.comJohn@assystem.com
13%
FirstLast@assystem.comJohnDoe@assystem.com
1%

Frequently Asked Questions

Where is Assystem's headquarters located?

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Assystem's main headquarters is located at 11 Allée de L'arche Tour Egée Courbevoie, Île-de-france 92400 France. The company has employees across 6 continents, including EuropeAsiaNorth America.

What is Assystem's phone number?

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You can contact Assystem's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Assystem's stock symbol?

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Assystem is a publicly traded company; the company's stock symbol is 0OA7.L.

What is Assystem's official website and social media links?

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Assystem's official website is assystem.com and has social profiles on LinkedInCrunchbase.

How much revenue does Assystem generate?

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As of February 2026, Assystem's annual revenue is estimated to be $5B.

What is Assystem's SIC code NAICS code?

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Assystem's SIC code is 8711 - Engineering Services NAICS code is 5416 - Management, Scientific, and Technical Consulting Services.

How many employees does Assystem have currently?

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As of February 2026, Assystem has approximately 7.9K employees across 6 continents, including EuropeAsiaNorth America. Key team members include Cfo Sbu Ingenierie: G. B.Chief Technology Officer-Svp Digital Transformation: R. P.Chief People Officer: V. V. P. F.. Explore Assystem's employee directory with LeadIQ.

What industry does Assystem belong to?

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Assystem operates in the Business Consulting and Services industry.

What technology does Assystem use?

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Assystem's tech stack includes QuickBooksPrometheusNetAppISO/IEC 27001PrototypeOracle Primavera CloudNew RelicGoogle Analytics.

What is Assystem's email format?

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Assystem's email format typically follows the pattern of FLast@assystem.com. Find more Assystem email formats with LeadIQ.

Assystem

Business Consulting and ServicesÎle-de-france, France5001-10000 Employees

Assystem, one of the world's leading independent nuclear engineering companies, is committed to accelerating the energy transition. We see ourselves as an activist in the development of nuclear energy, convinced that it is an essential part of the fight against climate change.

8,000 switchers, spread in 13 countries in Europe, Asia, Africa and the Middle East are working every day to make the energy switch by accelerating the development of nuclear and renewable energies, power grids, clean hydrogen projects and low-carbon transport.

We design and supervise major projects through our engineering activities and accelerate our customers' digital transformation. We also develop new solutions to build faster and improve the performance of complex infrastructures.

59 years of experience have made Assystem a key partner of the world's largest industrial groups: CEA, EDF, ENEC, Enedis, Engie, Framatome, ITER, K.A. CARE, Naval Group, NICDC, Orano, RATP, Rolls Royce, Royal Commission, Sellafield, SNCF...

Assystem is ranked in the Top 3 companies in the nuclear energy sector.

Section iconCompany Overview

Headquarters
11 Allée de L'arche Tour Egée Courbevoie, Île-de-france 92400 France
Phone number
SIC Code
8711 - Engineering Services
Stock Symbol
0OA7.L
NAICS Code
5416 - Management, Scientific, and Technical Consulting Services
Employees
5001-10000

Section iconFunding & Financials

  • $1B$10B

    Assystem's revenue is estimated to be in the range of $1B$10B

Section iconFunding & Financials

  • $1B$10B

    Assystem's revenue is estimated to be in the range of $1B$10B

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