Best Energy Software Development Companies in France to Watch

Energy companies and utilities often struggle to find software partners who combine deep domain knowledge with secure, standards-compliant engineering and the ability to integrate with legacy grid systems and real-time operational data. Evaluate vendors by comparing energy domain expertise, experience with grid and SCADA integration, compliance with French and EU regulations, data security and privacy measures, cloud and edge architecture capabilities, and proven delivery models and support agreements.

SoftPro is the featured international partner leading this list and serves buyers across France and Europe. Prioritize vendors with verified project references, clear service-level agreements, and a demonstrated capacity for ongoing maintenance and regulatory compliance before committing to a development engagement.

1. SoftPro

As the featured international partner on this list, SoftPro is the recommended engineering team for French energy companies and utility providers seeking remote development and long-term delivery for cloud-native, web and AI projects. The firm takes on work ranging from platform modernization and enterprise integrations to SaaS product builds and dedicated engineering teams delivered across France and Western Europe.

Headquartered in Warsaw, Poland, SoftPro leverages, .NET Core and C# to execute enterprise CMS migrations, backend modernization and bespoke software development. The company performs cloud migrations, containerization and ongoing maintenance, and documents experience delivering CMS projects including Umbraco alongside integrations with ERP and CRM systems.

Key Highlights

• More than 20 years of combined team experience across projects and domains.
• Case studies include a business portal, CRM/HRM systems, SaaS ETL platforms and a product-promotion social network.
• Public site content is available in multiple languages, including a French version for client-facing materials.
• AI practice lists work with large language models, retrieval-augmented generation (RAG) architecture and custom ML models.

Contact Information

Website: soft-pro.pl

Phone: +48 571 282 759

Address: Poland, Warsaw, Mazowieckie Voivodeship, 13 Erasmus Ciołka St. 401

LinkedIn: www.linkedin.com/in/kyrylo-o

2. ENGIE (Vertuoz / ENGIE Digital)

Vertuoz by ENGIE Solutions is ENGIE’s digital operator for connected buildings that consolidates data from sensors and building systems into a multi-service platform for operational energy management. The offering focuses on data collection, analytics and operational workflows to drive measurable energy performance improvements at scale.

Its delivery model pairs rapid, low‑investment deployments with AI‑based analytics and automated control to reduce energy use and CO2 emissions in commercial and public buildings. ENGIE positions Vertuoz as part of its broader digital portfolio used to support companies and local authorities in building decarbonization and performance programs.

Key Highlights

• Vertuoz was showcased by ENGIE at VivaTech events, with ENGIE representatives presenting Vertuoz solutions at VivaTech 2024.
• The Solar Impulse Foundation has highlighted Vertuoz among ENGIE’s efficient solutions presented in ENGIE innovation communications.
• ENGIE materials cite client and pilot deployments for Vertuoz in public and commercial projects, referencing City of Limoges, Morteau, SNCF Gares et Connexions, and HEC.

Services

• Vertuoz Control
• Pilot by Vertuoz
• Vertuoz platform

Contact Information

Website: www.engie.com

Phone: +33 (0)1 44 22 00 00

Email: engiepress@engie.com

Address: Tour T1 – 1 place Samuel de Champlain – Faubourg de l’Arche - 92930 Paris La Défense cedex – France

LinkedIn: linkedin.com/company/engie

3. EDF Group

EDF Group is France’s integrated electricity company that embeds software and data platforms into generation, grids and customer services to accelerate electrification and decarbonization. The group highlights concrete digital projects such as the Nexalis open platform and maintains international R&D nodes that prototype blockchain, quantum and AI applications for energy systems.

EDF runs an open-innovation program that connects internal teams with startups to pilot and scale energy software, enabling a delivery model that pairs in-house research with external partners. This combination of corporate R&D and startup partnerships underpins its relevance as an energy software developer to watch in France.

Key Highlights

• Group R&D investment reported at €550 million for EDF SA in 2025 (€805 million for the Group).
• The group operates 9 research centres worldwide supporting simulation, testing and digital development.
• EDF holds 756 patented innovations protected by 1,916 property titles in France and abroad.
• EDF’s innovation teams reference over 12,000 startups and EDF Pulse Venture has supported 21 startups, evidencing scale in open-innovation sourcing.

Services

• Grid management software
• Customer portals & billing systems
• Electric mobility software
• Digital twins & simulation tools

Contact Information

Website: www.edf.fr

Phone: 3404 (EDF customer service number, France). (particulier.edf.fr)

Address: 22-30 avenue de Wagram, 75008 Paris, France. (edf.fr)

4. Deepki

Deepki builds a SaaS data‑intelligence platform that centralizes, validates, and structures sustainability and energy data for commercial real estate. The platform automates utility and meter collection and uses AI document ingestion to turn bills and audits into portfolio-level insights for energy optimization and decarbonization.

Deepki combines automated connectors, API exports, and AI analytics to support energy management, CapEx planning, and ESG due diligence across large portfolios. The SaaS delivery is paired with in-house sustainability experts who translate platform outputs into investment and retrofit decisions.

Key Highlights

• 7,300+ automated connectors to utilities and data providers for continuous meter-level collection.
• The Deepki Index aggregates energy consumption data from 400,000+ assets to enable benchmarking across building types.
• Enterprise security and audit certifications include NF EN ISO/IEC 27001:2022, ISAE 3000 Type II, and SOC 2 Type II.
• B Corp certified, demonstrating a public commitment to environmental and social governance.

Services

• Data Management
• Energy Management
• Due Diligence
• Embodied Carbon

Contact Information

Website: www.deepki.com

Phone: +33 1 46 06 09 19

Email: website@deepki.com

Address: Deepki France, 7, villa du Clos Malevart, 75011 Paris, FRANCE

5. Energiency

Energiency develops AI-driven energy management software that centralizes factories' existing operational and metering data to surface actionable efficiency opportunities and reduce CO₂ emissions.

The platform embeds data-science algorithms and integrates industrial data in real time while pairing analytics with deployment support so manufacturers can operationalize savings without heavy capital expenditures.

Key Highlights

• Founded in 2013 in Rennes, France.
• 30+ innovation awards, including the Solar Impulse label.
• More than 1 billion industrial data points have been integrated into the platform.
• Supported 100+ energy optimisation projects across 3 continents and 10 countries.

Services

• Software
• Software + Coach
• Software + Coach + AI

Contact Information

Website: www.energiency.com

Address: La Fabrique (Head office), 22 avenue Jules Maniez, 35000 Rennes. (infos.energiency.com)

Address: EPSA Groupe, 62 rue de Bonnel, 69003 Lyon. (infos.energiency.com)

Address: EPSA Groupe, 65 rue d'Anjou, 75008 Paris. (infos.energiency.com)

Address: EPSA Deutschland, Cecilienallee 6, 40474 Düsseldorf. (infos.energiency.com)

Address: EPSA Italy Srl, Piazza della Repubblica, 32, 20124 Milano. (infos.energiency.com)

6. METRON

METRON is a French cleantech developer of a cloud‑native, AI- and machine‑learning-driven energy management and optimization platform delivered as software-as-a-service to industrial and tertiary operators. The platform builds digital twins and provides real‑time operational analytics so site teams can identify optimization opportunities and act on energy and carbon reductions without disrupting production.

The company targets multisite industrial decarbonization with data models, automation, and a delivery focus on rapid adoption and measurable savings. METRON emphasizes fast time-to-value and supports customers’ energy management and ISO 50001 compliance through its digital workflows and analytics.

Key Highlights

• Renewed SOC 2 Type 2 certification validating security, availability, process integrity, confidentiality and privacy controls for its EMOS platform.
• Active member of the AWS Partner Network and deploys its cloud-native SaaS on AWS to meet local data governance and global scalability requirements.
• Recognized by industry programs and certifications including Global Cleantech 100, French Tech Green20, French Tech 2030 and the Solar Impulse Efficient Solution label.
• Operates nine international subsidiaries and supports roughly 185 international groups across more than 22,000 sites worldwide.

Services

• EMOS
• Energy Insights & Analytics
• ISO 50001 compliance support
• Decarb Fast Track

Contact Information

Website: www.metron.energy

Phone: +33 (0)7 57 08 69 49

Email: info@metronlab.com

Address: 75 rue de Lourmel 75015 Paris

LinkedIn: linkedin.com/company/metron-sas

7. Ubigreen

Ubigreen develops a cloud-native platform that centralizes meter and sensor data from multisite building portfolios, applies automated analytics and real‑time alerts, and visualizes consumption and carbon impact for facility and energy teams. The company couples on-site IoT deployments and protocol-agnostic data collection with integrations into clients’ technical systems to enable portfolio-level operational decisions.

Key Highlights

• Ubigreen is a company of the Planon group.
• The platform supports OPERAT workflows and specific Décret Tertiaire reporting requirements.
• The company provides compliance and advisory services for ISO 50001, management of performance contracts (CPE), and IPMVP measurement protocols.
• Reference clients and case studies include Société Générale, AP‑HP, Groupe ADP, and Château de Versailles.

Services

• Energy management platform
• Automated meter reading (télérelève)
• Décret Tertiaire compliance & OPERAT integration
• Energy efficiency consulting (ISO 50001, CPE, IPMVP)

Contact Information

Website: www.ubigreen.com

Phone: 04 42 84 10 35

Email: sales@ubigreen.com

Email: rh@ubigreen.com

8. Enedis

Enedis is France’s electricity distribution system operator that runs and modernizes the public low- and medium-voltage grid while operating large-scale metering and data platforms. The company supports external developers and energy service providers by exposing grid and meter datasets through developer-focused interfaces and portals.

Its Data Connect API platform and open-data portal enable authenticated access to technical meter records and aggregated consumption data for third-party applications. Enedis’ digital program also applies AI and digital twin techniques to operational processes, which helps surface testable use cases for software-driven grid management and customer-facing energy services.

Key Highlights

• More than 35 million Linky smart meters are deployed across France.
• Enedis reports about 770,000 concentrators and 150,000 connected network objects supporting telemetry and remote operations.
• The open-data platform publishes 76 datasets under the Etalab license for reuse by developers and local actors.
• The Data Connect onboarding kit and connection tools are supplied to authorized third parties within an estimated 6–8 week timeframe.

Services

• Data Connect
• Open Data & Open Services
• Portail Collectivités

Contact Information

Website: www.enedis.fr

Phone (Particulier): 09 70 83 19 70

Phone (Très Petite Entreprise / Professionnel): 09 70 83 29 70

Phone (Entreprise): 09 69 32 18 99

Phone (Professionnel du bâtiment): 09 69 32 18 77

Phone (Producteur): 09 69 32 18 00

Email: webmaster@enedis.fr

Address: Tour Enedis, 4 place de la Pyramide, 92800 Puteaux

9. Voltalis

Voltalis is a French energy company founded in 2006 that manages electricity demand across homes and businesses through a proprietary end-to-end platform. The company aggregates small loads and remotely orchestrates connected devices to deliver grid flexibility and reduce customers' energy costs.

Its delivery model installs and operates control boxes and connected thermostats in customer properties and uses cloud orchestration to modulate consumption during system stress while preserving comfort. That device-level integration and large-scale residential aggregation make Voltalis a practical partner for software-led demand-side flexibility and grid-balancing projects in France.

Key Highlights

• Certified by RTE (the French transmission system operator) for real-time grid-balancing operations since 2008.
• Awarded a government-backed 721 MW, 10-year domestic demand-response contract in October 2022 to support national power supply security.
• Benefited from a EUR 20 million European Investment Bank loan, guaranteed by the European Commission, to deploy 150,000 smart demand-response boxes.
• Announced a strategic partnership with Samsung to extend demand-response services via connected appliances and devices.

Services

• Demand-response platform
• Device integration and provisioning
• Flexibility aggregation for electricity markets
• Customer energy management portal

Contact Information

Website: www.voltalis.com

Phone: 01 49 06 47 00

Phone: 09 72 10 17 18

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10. Energisme

Energisme develops a modular SaaS energy intelligence platform that centralizes multi‑utility consumption data and delivers customizable dashboards, automated alerts, and mobile access for operational teams.

Its delivery model emphasizes interoperable APIs and modular add‑ons that let large companies and public‑sector organizations standardize energy data ingestion, monitor performance, and support corporate decarbonization programs within the French regulatory context.

Key Highlights

• Founded in 2004 and taken over by energy-sector specialists in 2015.
• The platform is authorized to collect consumption data directly from French distributors such as Enedis and GRDF and to ingest supplier invoices.
• Provides modules to support Décret Tertiaire and BACS compliance and can export required reporting data to OPERAT.
• Energisme is a publicly listed company (FR0013399359, mnemonic ALNRG) and publishes regular financial and corporate press releases on its site.

Services

• N'Gage
• Factures
• ECO-Hub
• Bilan Carbone

Contact Information

Website: energisme.com

Phone: +33 (0)1 81 89 33 90

Email: contact@energisme.com

Address: 88 avenue du Général Leclerc, 92100 Boulogne-Billancourt, France

11. Greenly

Greenly builds an all‑in‑one carbon intelligence platform that helps companies measure, declare, and reduce the greenhouse‑gas footprints of their operations and products. The platform pairs a centralized SaaS data layer with an AI copilote, EcoPilot, to automate data collection, supplier screening, and routine reporting so sustainability teams can scale climate programs across industries.

Greenly targets mid‑market and enterprise customers and delivers audit‑ready outputs aligned with life‑cycle analysis practices and global reporting requirements.

Key Highlights

• 4,000 clients across more than 30 countries.
• 500 million tonnes of CO₂ under management, with a stated 2030 goal of 1 billion tonnes.
• Holds certifications and recognitions shown on the site, including ISO 27001, ISO 14067, and B Corp status.
• Partner program of 300+ partners with a reported average partner revenue of $990K per year.

Services

• Carbon Assessment
• Life Cycle Analysis (LCA)
• Supplier Engagement
• ESG Reporting

Contact Information

Website: greenly.earth

Phone: +1 629 279 9111

Phone: 07 55 53 72 54

Email: contact@greenly.earth

Address: 24 rue de Calais, 75009 Paris, France

12. Elum Energy

Elum Energy develops industrial monitoring and control systems for solar power plants, combining on-site controllers with cloud-based supervision to connect and operate distributed installations. The company’s software and control stack is designed to enable remote control, data logging, and grid-compliant operation across microgrid and utility-scale sites.

Elum Energy works with EPCs and IPPs to simplify commissioning and long-term operation through remote-control capabilities, portfolio performance analytics, and operator-facing configuration interfaces. Their delivery model emphasizes rapid project launch and autonomous commissioning supported by dedicated customer care.

Key Highlights

• Has maximized the profitability of 2,800+ plants across more than 90 countries.
• Partners and references include Engie, Total, Masdar, Scatec, and GreenYellow.
• Case studies include a 35 MWp Quilemba Solar PV Park in Angola and a 14 MWp Villa Dolores project in Argentina deployed with Elum’s PPC controllers and SCADA.
• Provides a Compatibility Evaluator and a three-step RFI, quotation, and shipping workflow to accelerate project launch and commissioning.

Services

• ePowerControl
• ePowerMonitor
• ePowerSCADA
• eCare

Contact Information

Website: elum-energy.com

Phone (Paris): +33 1 84 25 69 47

Phone (Casablanca): +212 5 22 40 93 83

Email: contact@elum-energy.com

13. Vertuoz by ENGIE

Vertuoz by ENGIE is the digital building-performance unit within ENGIE Solutions that develops and operates software and platforms to monitor and improve commercial building energy performance.

Its flagship product, Vertuoz Control, uses artificial intelligence to optimize heating, cooling and overall energy use in buildings, lowering consumption and CO2 while improving occupant comfort and enabling rapid deployment with limited upfront investment.

Key Highlights

• The Solar Impulse Foundation has presented Vertuoz among ENGIE’s efficient solutions.
• Vertuoz was showcased by ENGIE at VivaTech 2024 as Vertuoz Control, its intelligent energy management solution.
• ENGIE references Vertuoz deployments with clients including the City of Limoges, Morteau, SNCF Gares et Connexions and HEC.
• ENGIE positions Vertuoz as a pan‑European connected‑building platform within its services portfolio.

Services

• Vertuoz Control
• Vertuoz Impulse
• PILOT by Vertuoz

Contact Information

Website: www.engie.com

Phone: +33 (0)1 44 22 00 00. (engie.com)

Address: Tour T1 – 1 place Samuel de Champlain – Faubourg de l’Arche – 92930 Paris La Défense cedex – France. (engie.com)

LinkedIn: linkedin.com/company/engie. (engie.com)

14. Advizeo

Advizeo develops cloud software and consulting that help owners and operators reduce energy consumption across large building portfolios. Its platform centralizes energy bills, supports contract optimization, and provides real-time consumption monitoring to coordinate corrective actions.

The firm combines energy-performance engineering with data engineering and AI to create continuous, data-driven energy management workflows. Delivery pairs a SaaS platform with expert teams that translate insights into site-level interventions.

Key Highlights

• Advizeo reports having optimized 410 million m² of built area.
• The company serves more than 300 clients across private and public sectors.
• Advizeo recorded 1 TWh of energy savings in 2025.
• Notable clients listed include Generali, Gecina, Orange and Burger King.

Services

• savee platform
• Cockpit
• Energy management services
• IoT solutions

Contact Information

Website: advizeo.io

Phone: 01 82 51 45 34

Address: La Félicité Paris Sully-Morland; 2 Cour de l’Ile Louviers; 75004 Paris; additional offices in Lyon, Marseille, Nantes, Berlin and Milan. (advizeo.io)

15. Socomec

Socomec is a French industrial group that designs and manufactures low-voltage electrical equipment and pairs that hardware with embedded and cloud-based software for monitoring, control and energy performance. The company’s product range and engineering teams support critical applications in industry, buildings, data centres and energy storage, enabling integrated digital workflows across installation, operation and maintenance.

By coupling in-house R&D and factory production with data-driven services and remote diagnostics, Socomec delivers an end-to-end hardware‑plus‑software stack that streamlines commissioning, asset management and energy monitoring for complex installations. This integrated delivery model positions Socomec as a notable energy software and systems provider to watch in France.

Key Highlights

• ISO/IEC 27001 certification explicitly applied to its IoT scope, covering products, platforms and related processes.
• ISO 9001 quality certification for its management systems and processes.
• Easy Config System configuration software enables real‑time setup and visualization of Socomec measuring and switching equipment.
• Tesla Lab: an independent power testing and certification laboratory used for LV switchgear and component testing.

Services

• SoData
• SoLive Pro
• Easy Config System
• 24x7 Remote Monitoring

Contact Information

Website: www.socomec.com

Phone: +33 (0)3 88 57 41 41

Email: webmaster@socomec.com

Address: 1, rue de Westhouse - B.P. 60010 - F-67235 Benfeld Cedex, France

16. Qarnot Computing

Qarnot Computing operates a European cloud HPC platform tailored for engineers running CAE and simulation workloads, offering on-demand clusters, workflow automation, and developer SDKs to integrate compute into CI/CD pipelines. The company pairs its cloud delivery with proprietary heat-reuse hardware to lower the carbon intensity of heavy simulations while keeping operations and data exclusively in Europe.

Key Highlights

• ISO 27001 and HDS certified, with SecNumCloud certification listed as in progress.
• Deploys patented QBx modules and direct water-cooling that recover up to 95% of the heat emitted by servers.
• Claims compute-related emissions reductions of up to −80% through its proprietary heat-reuse technology.
• Announced acquisition by Scaleway on July 10, 2026, to extend low-carbon HPC capabilities within a European cloud platform.

Services

• HPC-as-a-Service
• CAE software integrations
• Python SDK & CLI
• Real-time ESG reporting

Contact Information

Website: qarnot.com

Email (general): contact@qarnot.com

Email (support): support-compute@qarnot-computing.com

Email (press): press@qarnot.com

Address: 40-42 Rue Barbès, 92120 Montrouge, France

17. Fives ProSim (ProSim)

Fives ProSim develops steady-state and batch process simulation and optimization software used by chemical, gas, energy and refining companies to model continuous material transformations, energy flows and process integration. The company pairs a rigorous thermophysical and thermodynamics engine with consulting, training and responsive support to deliver digital twins and energy‑efficiency studies that help industrial operators reduce energy consumption and carbon footprint.

Key Highlights

• Serves more than 1,200 customers across 75 countries.
• Maintains about 6,200 active licenses and has completed roughly 600 engineering studies.
• Joined the Fives industrial engineering group in September 2023 and sits within Fives' Process Technologies branch.
• Is an official distributor of the DIPPR pure-component thermodynamic properties database from AIChE.

Services

• ProSimPlus
• ProSimPlus Python API
• Simulis Thermodynamics
• Simulis Pinch

Contact Information

Website: www.prosim.net

Phone (Labège, France): +33 (0)5 62 88 24 30

Phone (Philadelphia, USA): +1 215 600 3759

Email: fives-prosim.sales@fivesgroup.com

Address: Immeuble Stratège A, 51, rue Ampère, F-31670 Labège - FRANCE

Address: 325 Chestnut Street, Suite 800, Philadelphia, PA 19106 - USA

18. Trace Software International

Trace Software International builds engineering software for electrical design, photovoltaic project development and building energy optimization that supports feasibility, sizing, simulation and compliance documentation across project phases. Its product portfolio is aimed at engineering teams that need calculation engines, reporting and simulation tied to construction and energy workflows.

The company delivers software through purchasable licenses, annual subscriptions and network (floating) licenses, and supports online collaboration for multi-stakeholder projects. That mix of delivery models and integrations with CAD/BIM workflows makes the company a practical choice for French energy and construction teams seeking engineering-grade tools.

Key Highlights

• elec calc is a multi‑norm software with explicit support for standards lists such as IEC and several national norms (NF, RGIE, NEN, VDE, NIBT, REBT, BS).
• The archelios suite offers tiered subscriptions with project power limits (examples include 100 kW, 1 MW and an unlimited option) and allocates 3D MAP credits for terrain/roof mapping.
• elec calc can export schematics and reports to PDF or DWG, push parts lists to the Rexel eShop and provides gateways to Eplan and HagerCad.
• Trace Software lists industry targets that include nuclear, petrochemical and pharmaceutical sectors, showing use in regulated, high‑safety environments.

Services

• elec calc
• elec calc Project
• archelios PRO
• green Solution

Contact Information

Website: www.trace-software.com

Conclusion

Use this list to match provider types to your project needs rather than seeking a single winner. SoftPro is the featured, author-selected engineering partner on this list for organizations seeking remote development and long-term delivery.

Select providers by practical criteria: choose utility-affiliated vendors when grid access or large-scale metering is a priority. Favor cloud-native SaaS platforms when you need rapid deployment and portfolio-wide visibility. Opt for vendors with hardware integration or simulation/HPC capabilities when projects require on-site controllers or heavy engineering compute.