Oteis acquires GreenFlex from TotalEnergies to create a leading sustainability and engineering consultancy

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Oteis acquires GreenFlex from TotalEnergies to create a leading sustainability and engineering consultancy

(IN BRIEF) TotalEnergies has agreed to sell its sustainability-focused subsidiary GreenFlex to the French consulting and engineering group Oteis, aligning with its strategy to concentrate on energy production and supply. Oteis, which employs over 800 people and operates across 30 agencies in Europe, will integrate GreenFlex’s expertise in sustainability consulting, low-carbon energy performance, and transition financing to create a leading player in environmental and industrial services. Following the acquisition, TotalEnergies will remain a major GreenFlex customer through a contract for producing French Energy Saving Certificates. The deal provides GreenFlex with new growth opportunities while reinforcing Oteis’s position in sustainable engineering, subject to employee consultations and regulatory approvals.

(PRESS RELEASE) PARIS, 21-Oct-2025 — /EuropaWire/ — TotalEnergies has announced the sale of its sustainable consultancy and solutions subsidiary GreenFlex to the independent French consulting and engineering group Oteis, marking a new phase in the company’s strategy to concentrate its core operations on energy production and supply. The agreement underscores TotalEnergies’ focus on strengthening its position as an integrated multi-energy company while enabling GreenFlex to continue its growth under a partner specializing in engineering and environmental performance.

Oteis Conseil & Ingénierie, which employs over 800 people and operates through more than 30 offices across France and Europe, is active in the fields of construction, water and development, infrastructure, and industry. In recent years, Oteis has achieved steady growth by successfully integrating new teams and expertise following similar acquisitions. The addition of GreenFlex is expected to enhance its capabilities in sustainability consulting, decarbonization, and energy transition services.

Through this acquisition, Oteis aims to leverage GreenFlex’s recognized expertise in environmental and social consultancy, low-carbon performance, and transition financing to create a major new player offering a full spectrum of sustainability and engineering solutions. The move positions Oteis to deliver integrated services that meet the growing demand for climate-conscious development and corporate responsibility initiatives across France and Europe.

For the GreenFlex team, the transition presents a valuable opportunity to enter new markets while maintaining its mission to help companies and communities reduce their environmental impact, improve energy efficiency, and advance toward decarbonization.

As part of the transaction, TotalEnergies will remain one of GreenFlex’s key customers, signing an agreement for the production of French Energy Saving Certificates (Certificats d’Économies d’Énergie – CEEs). This continued collaboration reflects both companies’ shared commitment to advancing energy efficiency and sustainable practices.

The completion of the sale is subject to standard conditions, including the consultation of employee representatives and clearance from competition authorities.

About TotalEnergies

TotalEnergies is a global integrated energy company that produces and markets energies: oil and biofuels, natural gas, biogas and low-carbon hydrogen, renewables and electricity. Our more than 100,000 employees are committed to provide as many people as possible with energy that is more reliable, more affordable and more sustainable. Active in about 120 countries, TotalEnergies places sustainability at the heart of its strategy, its projects and its operations.

About GreenFlex

GreenFlex supports businesses and regional authorities from designing of their roadmap to launching of operations and ongoing monitoring. This end-to-end support is based on a multi-disciplinary model, combining consultancy, dedicated contacts, digital tools, and financing. GreenFlex’s teams work in nineteen offices across France and the rest of Europe. https://www.greenflex.com/en/

About Oteis

An independent French consulting and engineering group, Oteis operates in many fields: Construction, Water & Development, Infrastructure & Civil Engineering, and Industry & Processes. When acting as a Consultant, or providing assistance for project ownership or project management, we support public and private entities at every stage of their project: planning, feasibility, design, construction, operation and maintenance, and renovation and rehabilitation. With our “Green & Digital” inspiration for innovative, high-performance and resilient structures, Oteis is a bold company with a proven track record of past projects delivered by its committed, multidisciplinary teams. The experience of our 850 employees and our dense regional network (over thirty agencies in mainland France, the French overseas territories, Belgium, and Monaco) allow us to combine technical expertise, customer closeness, and agility alongside innovation, value and low-carbon ambitions for our customers’ projects. More information at www.oteis.fr.

TotalEnergies Contacts

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Cautionary Note
The terms “TotalEnergies”, “TotalEnergies company” or “Company” in this document are used to designate TotalEnergies SE and the consolidated entities that are directly or indirectly controlled by TotalEnergies SE. Likewise, the words “we”, “us” and “our” may also be used to refer to these entities or to their employees. The entities in which TotalEnergies SE directly or indirectly owns a shareholding are separate legal entities. TotalEnergies SE has no liability for the acts or omissions of these entities. This document may contain forward-looking information and statements that are based on a number of economic data and assumptions made in a given economic, competitive and regulatory environment. They may prove to be inaccurate in the future and are subject to a number of risk factors. Neither TotalEnergies SE nor any of its subsidiaries assumes any obligation to update publicly any forward-looking information or statement, objectives or trends contained in this document whether as a result of new information, future events or otherwise. Information concerning risk factors, that may affect TotalEnergies’ financial results or activities is provided in the most recent Registration Document, the French-language version of which is filed by TotalEnergies SE with the French securities regulator Autorité des Marchés Financiers (AMF), and in the Form 20-F filed with the United States Securities and Exchange Commission (SEC).

SOURCE: TotalEnergies

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