Insights

Nuclear leadership Assystem is a top-tier independent nuclear engineering firm actively accelerating the energy transition, presenting a strong opening to offer strategic consulting, project delivery optimization, and specialized engineering services to utility operators and reactor developers.

Digital twin growth Ongoing digital twin and advanced simulation initiatives with Naarea and reactor ecosystems highlight opportunities to supply digital transformation tools, data analytics, and model-based engineering services to other nuclear start-ups and large-scale facilities seeking performance gains.

UK expansion Recent office expansions and acquisitions in the UK indicate a growing footprint and local delivery capacity, suggesting potential for co-located engineering hubs, regulatory-compliance support, and on-site project management for UK clients and partners.

AI in ops Partnerships and demonstrations around AI applications for small modular reactors (SMR) position Assystem as a potential collaborator for AI-enabled safety, risk assessment, predictive maintenance, and digital-operational optimization projects.

Strategic partnerships Longstanding relationships with EDF, Rolls-Royce SMR, CEA, ENEC, and other major players create cross-sell opportunities for integrated engineering services, systems integration, and compliance programs across nuclear, renewable integration, and grid modernization initiatives.

Assystem Tech Stack

Assystem uses 8 technology products and services including QuickBooks, Rockwell Allen-Bradley, LonWorks, and more. Explore Assystem's tech stack below.

  • QuickBooks
    Accounting And Finance
  • Rockwell Allen-Bradley
    Control Systems
  • LonWorks
    Control Systems
  • Microsoft Outlook
    Email
  • Microsoft Active Directory
    Identity And Access Management
  • HTML
    Programming Languages
  • New Relic
    Real User Monitoring
  • Piwik PRO Core
    Web Analytics

Media & News

Assystem's Email Address Formats

Assystem uses at least 1 format(s):
Assystem Email FormatsExamplePercentage
FLast@assystem.comJDoe@assystem.com
71%
First.Last@assystem.comJohn.Doe@assystem.com
15%
First@assystem.comJohn@assystem.com
13%
FirstLast@assystem.comJohnDoe@assystem.com
1%

Frequently Asked Questions

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 July 2026, Assystem's annual revenue is estimated to be $1B - $10B.

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 July 2026, Assystem has approximately 8.1K 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 QuickBooksRockwell Allen-BradleyLonWorksMicrosoft OutlookMicrosoft Active DirectoryHTMLNew RelicPiwik PRO Core.

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 logo

Assystem

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

Assystem is a France-based company in the Business Consulting and Services industry, with 5,001 to 10,000 employees, located at 11 Allée de L'arche Tour Egée, Courbevoie, Île-de-France 92400, France. It is described as one of the world's leading independent nuclear engineering firms and is committed to accelerating the energy transition, treating nuclear energy as an important part of addressing climate change. Approximately 8,000 personnel operate across 13 countries in Europe, Asia, Africa and the Middle East, working to advance the energy transition by accelerating the development of nuclear and renewable energies, power grids, clean hydrogen projects, and low-carbon transport. Assystem designs and supervises major projects through its engineering activities and supports customers' digital transformation, while developing new solutions to improve the performance of complex infrastructures. With 59 years of experience, it counts major industrial groups such as CEA, EDF, ENEC, Enedis, Engie, Framatome, ITER, K.A. CARE, Naval Group, NICDC, Orano, RATP, Rolls Royce, Royal Commission, Sellafield, and SNCF among its partners, and is ranked in the top three in the nuclear energy sector.

Section iconCompany Overview

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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