Insights

Strong Industry Experience Geostock's 50 years of specialized expertise in underground storage solutions position it as a trusted provider for projects requiring advanced engineering and consultancy services in the oil and gas sector.

Global Presence With operations established across all continents, Geostock offers proximity and responsiveness to international clients, creating opportunities to expand services into emerging markets seeking underground energy storage solutions.

Strategic Partnership The recent collaboration with Air Liquide demonstrates Geostock's ability to establish strategic alliances within the energy industry, opening avenues to secure similar partnerships with large, innovative companies focused on energy storage.

Industry Focus Specializing in underground storage techniques such as salt caverns, mined caverns, and porous reservoirs makes Geostock a key partner for clients involved in energy storage, carbon capture, or gas storage projects.

Technological Expertise Utilizing advanced tech stacks including Python, Java, and Microsoft solutions, Geostock is well-positioned to support high-tech, efficient storage projects, appealing to clients looking for innovative engineering and management services.

Geostock Tech Stack

Geostock uses 8 technology products and services including TYPO3, Sage X3, jQuery, and more. Explore Geostock's tech stack below.

  • TYPO3
    Content Management System
  • Sage X3
    Enterprise Resource Planning
  • jQuery
    Javascript Libraries
  • Microsoft
    Miscellaneous
  • Windows Server
    Operating Systems
  • Python
    Programming Languages
  • Java
    Programming Languages
  • HSTS
    Security

Geostock's Email Address Formats

Geostock uses at least 2 format(s):
Geostock Email FormatsExamplePercentage
First.Last@geostock.frJohn.Doe@geostock.fr
88%
FL@geostock.frJD@geostock.fr
4%
Last.First@geostock.frDoe.John@geostock.fr
4%
First.Middle@geostock.frJohn.Michael@geostock.fr
4%

Frequently Asked Questions

Where is Geostock's headquarters located?

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Geostock's main headquarters is located at 2, rue des Martinets - CS 70030, Rueil Malmaison, 92569, FR. The company has employees across 4 continents, including EuropeNorth AmericaAsia.

What is Geostock's phone number?

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You can contact Geostock'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 Geostock's official website and social media links?

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Geostock's official website is geostockgroup.com and has social profiles on LinkedIn.

What is Geostock's NAICS code?

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Geostock's NAICS code is 211 - Oil and Gas Extraction.

How many employees does Geostock have currently?

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As of October 2025, Geostock has approximately 257 employees across 4 continents, including EuropeNorth AmericaAsia. Key team members include President & Ceo (acting) Of Geostock Sandia Llc: M. L.President & Ceo: J. N.Director - Brazil: S. P.. Explore Geostock's employee directory with LeadIQ.

What industry does Geostock belong to?

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Geostock operates in the Oil and Gas industry.

What technology does Geostock use?

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Geostock's tech stack includes TYPO3Sage X3jQueryMicrosoftWindows ServerPythonJavaHSTS.

What is Geostock's email format?

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Geostock's email format typically follows the pattern of First.Last@geostock.fr. Find more Geostock email formats with LeadIQ.

When was Geostock founded?

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Geostock was founded in 1965.

Geostock

Oil and GasFrance201-500 Employees

Geostock  is an international company specialising in consultancy, engineering, design, construction management, operation and maintenance services for Underground Storage facilities.

Geostock’s services are available throughout the life of an underground storage facility, whatever the technique used or products stored. With its 50 years’ experience, Geostock boasts unique expertise and is a leading company which has grown continuously since it was first set up, and now employs 500 staff.

Geostock is a subsidiary of Vinci Construction Grands Projets and is established in every continent, offering proximity services to its clients and partners. The company is able to provide a raft of skills as well as the resources necessary to guarantee a high degree of reactivity and top quality service.

Underground storage is Geostock’s core activity. Staffs are multi-skilled and can deal with all the various techniques used in this sector: salt caverns, mined caverns and porous reservoir.

Section iconCompany Overview

Headquarters
2, rue des Martinets - CS 70030, Rueil Malmaison, 92569, FR
Phone number
NAICS Code
211 - Oil and Gas Extraction
Founded
1965
Employees
201-500

Section iconFunding & Financials

  • $10M$25M

    Geostock's revenue is estimated to be in the range of $10M$25M

Section iconFunding & Financials

  • $10M$25M

    Geostock's revenue is estimated to be in the range of $10M$25M

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