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Groupe Léon Grosse Tech Stack

Major French general contractor for infrastructure and heritage renovation

Construction Versailles 1,001–5,000 employees Founded 1881 Self-Owned

Léon Grosse is a top-tier French construction group with €720M revenue, operating across metropolitan France and overseas territories. The tech stack—AutoCAD, Revit, SAP, Google Workspace, AWS—is typical for large builders, but adoption of Gemini and Terraform signals early moves toward AI-assisted design and infrastructure-as-code workflows. Hiring velocity is accelerating with 204 open roles (98 in the last 30 days), heavily weighted toward construction and engineering staff, indicating major active project load and likely workforce scaling across occupied-site rehabilitation and energy transition work.

Tech Stack 24 technologies

Core StackAutoCAD Revit SAP AWS Windows Server Active Directory Linux Fortinet Google Workspace Google Drive Google Sheets Google Docs Google Forms Sentinel One Cisco Meraki Cato Networks LinkedIn Instagram BIM Microsoft Project Excel
AdoptingTerraform Gemini

What Groupe Léon Grosse Is Building

Challenges

  • Transition énergétique
  • Budget constraints
  • Occupied site rehabilitation
  • Transition environnementale
  • Respect du budget
  • Optimizing construction planning
  • Coordinating subcontractors on occupied sites
  • Supplier payment delays
  • Adopting new bim tools
  • Improving social reporting compliance

Active Projects

  • Réhabilitation de logements en sites occupés
  • Stades jean bouin
  • Rehabilitation of housing in occupied sites
  • Suivi tce des chantiers de réhabilitation d’ouvrages résidentiels
  • Extension mixte bois-béton de l'hôpital de l'eau vive
  • Rénovation énergétique du tribunal judiciaire de nanterre
  • Restructuration d’un immeuble haussmannien en plein coeur de paris rue royale
  • Centre pénitentiaire du comtat venaissin
  • Satellite s4 roissy-cdg
  • Centre pénitentiaire de vannes - chapeau rouge

Hiring Activity

Accelerating200 roles · 100 in 30d

Department

Construction
137
Engineering
33
Finance
8
Marketing
6
Ops
4
Design
2
Manufacturing
2
Procurement
2

Seniority

Senior
78
Intern
47
Mid
37
Principal
14
Junior
9
Director
7
Manager
6
Lead
4

Notable leadership hires: Production team lead, Project Director

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About Groupe Léon Grosse

Léon Grosse is a self-owned French construction group founded in 1881, headquartered in Versailles, with approximately 2,300 employees. The firm operates as a general contractor across BTP (bâtiment, travaux publics), real-estate development, and large-scale engineering. Notable completed projects include the Jean Bouin stadium in Paris, Roissy-CDG terminal satellite, and the European Parliament tower in Strasbourg. Current work spans housing rehabilitation in occupied sites, energy renovation (Nanterre courthouse, Nanterre-Université RER station), hospital extensions, and penitentiary construction. The company serves public-sector and institutional clients across France, Luxembourg, Belgium, and Poland.

HeadquartersVersailles
Company Size1,001–5,000 employees
Founded1881
Hiring MarketsFrance, Luxembourg, Belgium, Poland

Frequently Asked Questions

What is Léon Grosse's annual revenue?

€720 million. The company employs approximately 2,300 staff across France and overseas territories (DOM-TOM).

What software does Léon Grosse use for construction management?

Core stack includes AutoCAD, Revit (BIM), SAP (enterprise resource planning), Microsoft Project, and Google Workspace. The firm is currently adopting Gemini and Terraform.

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