Insights

Strategic Partnerships Recent collaborations with industry leaders like Vallourec and Air Liquide indicate a strong market position and growing demand for underground energy storage solutions, presenting opportunities to expand partnership networks and secure new joint ventures within the energy transition sector.

Renewable Transition Focus Geostock's involvement in developing infrastructure solutions for energy transition highlights a strategic alignment with the shift towards sustainable energy sources, offering potential for sales expansion into renewable integration and green energy storage projects.

Geographic Reach Established across all continents and backed by Vinci Construction Grands Projets, Geostock’s global footprint enables access to diverse markets, making it an ideal partner for clients seeking localized underground storage solutions in varied regions.

Technological Capabilities The company's use of modern tech stacks such as Python, Java, and Microsoft solutions showcases its technical adaptability, providing opportunities to offer innovative consulting and custom engineering services that leverage emerging technologies.

Market Positioning With a solid revenue base between 10M and 25M and a legacy of 50 years, Geostock's trusted expertise in underground storage positions it well to advise and supply critical infrastructure for companies aiming to optimize storage capacity and safety in an evolving energy landscape.

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 Rueil-malmaison, Île-de-france 92569 France. 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 SIC code NAICS code?

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Geostock's SIC code is 7299 - Miscellaneous Personal Services, Not Elsewhere Classified NAICS code is 211 - Oil and Gas Extraction.

How many employees does Geostock have currently?

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As of February 2026, Geostock has approximately 251 employees across 4 continents, including EuropeNorth AmericaAsia. Key team members include President & Ceo (acting) Of Geostock Sandia Llc: M. L.President & Ceo: J. N.Deputy Ceo - Directeur Général Délégué: D. L.. 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 GasÎle-de-france, France201-500 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
Rueil-malmaison, Île-de-france 92569 France
Phone number
SIC Code
7299 - Miscellaneous Personal Services, Not Elsewhere Classified
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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