What Celsius Energy does

Celsius Energy is a French geothermal energy company founded in 2019 that develops shallow geothermal (geoenergy) heating and cooling solutions for buildings. The company serves enterprise and institutional customers across healthcare, financial services, commercial real estate, industrial, municipal, and residential segments in France, the United States, and the United Kingdom. Its flagship deployments include the Ferney Genève Innovation eco-district (France's largest geothermal district heating network, recovering waste heat from CERN's particle accelerator) and the first US utility-operated Thermal Energy Network in Framingham, Massachusetts.

Celsius's core technology stack combines proprietary inclined borehole heat exchangers — reducing ground footprint to approximately two parking spaces while delivering equivalent thermal exchange capacity to conventional vertical borehole fields — with geothermal heat pumps and a suite of proprietary software including a "Geothermal Battery" site-characterization model (power in kW, energy capacity in MWh/year) and drilling optimization software. Layered on top is the Digital Operations Assistance Solution, an AI-assisted platform for HVAC performance optimization, predictive maintenance, and real-time energy management with optional performance guarantees. The company markets quantified outcomes of up to 90% CO2 emissions reduction, 75% energy consumption reduction, and 50% energy cost reduction on average, with a reported 6-year payback in healthcare facilities.

Celsius Energy is a wholly-owned subsidiary of SLB Limited (formerly Schlumberger), operating as a pillar of SLB's New Energy division. Revenue is generated through three streams: project-based turnkey geothermal installations (one-time), recurring subscription-based digital operations services, and financing facilitation partnerships. The go-to-market is direct enterprise sales with construction partners (e.g., Bouygues Bâtiment Sud-Est) and utility partners (Eversource, FGE). The company employs 51–100 staff, holds a multi-dozen patent portfolio, and operates from Clamart (France), Cambridge MA (US), and Stonehouse (UK).

Name

Celsius Energy

Legal name

Celsius Energy

Website

https://celsiusenergy.com

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

51–100 employees

Short description

Celsius Energy is a French geothermal energy company providing shallow geothermal heating and cooling solutions for healthcare, commercial, industrial, municipal, and residential buildings across France, the US, and the UK, using proprietary inclined borehole technology and an AI-assisted digital operations platform.

Ownership category

akta.pro rank

Product category

Geothermal Heating and Cooling Services

NAICS

Steam and Air-Conditioning Supply (221330), Steam and Air-Conditioning Supply (22133)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

Geothermal Drilling & Well Construction (Production/Injection, Directional, Well Services) (EUAMAEAB)

akta.pro secondary industries

Geothermal Heat Pumps & Ground-Source Systems (Residential/Commercial, Drilling/Loop Installation) (EUAMAEAH), Geothermal BOP & Surface Facilities (Well Pads, Gathering Systems, Brine Handling) (EUAMAFAH)

Keywords

• Shallow geothermal systems
• Geothermal heating cooling
• Thermal energy networks
• Subsurface heat exchangers
• Building decarbonization

Headquarters

HQ city

Clamart

HQ country

France

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure, Supply Chain

Revenue model

1. Geothermal System Installation: Turnkey geothermal heating and cooling system installation including borehole drilling, heat exchanger installation, heat pump integration, and commissioning. Revenue recognized through project-based contracts with enterprise clients, typically managed as part of larger construction or renovation projects.
2. Digital Operations Assistance: Ongoing subscription-based digital services for system monitoring, optimization, and predictive maintenance. Services include real-time energy performance tracking, AI-assisted optimization, and optional performance guarantees. Billed annually in advance.
3. Financing Solutions: Partner network-based financing facilitation services that help clients structure project funding. Celsius Energy connects customers with financial partners to enable project execution while preserving client investment capacity.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

Celsius Energy delivers turnkey shallow geothermal (geoenergy) heating and cooling systems for buildings, combining proprietary inclined borehole heat exchangers with geothermal heat pumps. The core offering is wrapped in an AI-powered digital operations assistance layer that monitors, optimizes, and provides performance guarantees for the installed HVAC assets, with financing facilitation available through partner networks.

Product overview

Celsius Energy offers a comprehensive geoenergy platform consisting of three integrated solutions: (1) the Geoenergy Solution as the core product, delivering geothermal heating and cooling through proprietary borehole heat exchanger technology and inclined probe systems; (2) the Digital Operations Assistance Solution as a digital add-on that provides AI-assisted maintenance, real-time performance monitoring, and optimization of HVAC systems; and (3) the Financing Solution to support project financial goals. The company also implements Thermal Energy Networks (TENs) as a community-scale approach, connecting multiple buildings to shared geothermal resources. All solutions are backed by SLB's engineering expertise and are applicable across commercial, residential, healthcare, industrial, and historic building sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• Geoenergy Solution Turnkey shallow geothermal heating and cooling system that decarbonizes building climate control by combining proprietary inclined borehole heat exchangers with geothermal heat pumps, delivering up to 90% CO2 emissions reduction and 75% energy consumption reduction. Designed for enterprise, institutional, healthcare, industrial, municipal, and residential customers across France, the US, and the UK.
• Digital Operations Assistance Solution AI-powered digital platform that optimizes HVAC system performance through data analytics, customization, predictive maintenance, real-time energy consumption tracking, and optional performance guarantees for installed geothermal assets. Offered as a recurring subscription service on top of Celsius Energy's physical geoenergy installations.
• Financing Solution Project financing assistance service that helps clients achieve financial goals for geothermal installations by connecting them with partner financial institutions and accessing incentives, designed to preserve customer investment capacity and improve cashflow.
• Thermal Energy Networks (TENs) Community-scale geothermal infrastructure connecting multiple buildings to a central borehole field for shared heating and cooling, with optional waste heat recovery from industrial sources such as CERN's particle accelerator. Targets urban decarbonization at scale, including for the 200,000 m² Ferney Genève Innovation district heating network.

Named customers10 records

Segments8 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Six partnerships are on record, tiered core and minor.

• SPL TerrinnovcoreStrategic or Co-development PartnerStrategic partnership with SPL Terrinnov (Société Publique Locale) for the Ferney Genève Innovation eco-district project. Celsius Energy, as part of a dedicated consortium, was selected to design and build three geothermal borehole fields for France's first Thermal Energy Network that recovers waste heat from CERN's particle accelerator. The project targets 195,000 m² commercial spaces and 2,500 residential units by 2030, avoiding 5,000 tonnes of CO2 annually.
• Bart PatriarchecoreStrategic or Co-development PartnerDevelopment partnership for the YAKI building at Ferney Genève Innovation, the first building connected to the geothermal network. Bart Patriarche developed the building with Celsius Energy providing geothermal borehole installation and integration.
• Bouygues Bâtiment Sud-EstcoreImplementation/ SI/ Consulting PartnerConstruction partnership for the Banque Populaire Auvergne Rhône Alpes project in Corenc. Bouygues Bâtiment Sud-Est served as general contractor overseeing the 8-month renovation project, with Celsius Energy's inclined probe technology and drilling optimization software enabling successful collaboration in space-constrained conditions.
• SLB (parent company)coreOthersCelsius Energy is a pillar of SLB New Energy division. The company leverages SLB's engineering expertise, global infrastructure, and portfolio of several dozen patents. SLB provides operational support including hosting (SLB DPS Team), privacy policy governance, and digital services terms and conditions.
• Auvergne ForageminorImplementation/ SI/ Consulting PartnerDrilling partner that obtained Certiforage certification (new quality reference for surface geothermal drilling), ensuring high standards for geothermal borehole installation.
• EversourcecoreStrategic or Co-development PartnerPartnership with Eversource for pioneering geothermal project in North America. Project featured by CNN as an example of utility-scale geothermal adoption. Celsius Energy provides geoenergy solutions integrated with utility infrastructure.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Emerging players

• Eavor Technologies: Canadian developer of closed-loop advanced geothermal systems for both power and direct-heat applications. Eavor is an emerging rival pursuing scalable, subsurface-based heat delivery that could compete with Celsius's shallow drilling model at district scale.
• Dandelion Energy: US residential geothermal heat pump installer using vertical ground loops. While focused on the residential segment rather than Celsius's enterprise/institutional focus, Dandelion is a relevant peer in terms of shallow geothermal deployment technology and business model.

Broad incumbents

• Trane Technologies: Global commercial HVAC and building services incumbent serving many of the same healthcare, financial and institutional customers as Celsius. Trane competes with Celsius through its commercial geothermal heat pump systems and integrated energy services.
• NIBE: Swedish manufacturer of ground-source heat pumps and HVAC solutions with strong European market share. NIBE competes with Celsius on the heat pump layer of geoenergy systems across European residential and light-commercial segments.
• Carrier Global: Major HVAC and building solutions incumbent with geothermal heat pump offerings and global commercial channel. Carrier competes with Celsius across commercial and institutional customers via its water-source/ground-source heat pump portfolio.
• Bosch Thermotechnology: Division of Bosch producing heat pumps (including ground-source), heating boilers and HVAC systems. Bosch competes with Celsius as a broad incumbent offering complete building heating solutions across European commercial and residential markets.
• Viessmann: German heating technology manufacturer with strong heat pump portfolio, including ground-source systems. Viessmann is a broad incumbent peer competing in European commercial and residential geothermal heating markets.
• Daikin: Global HVAC and heat pump incumbent with broad product portfolio including water-source and ground-source heat pumps. Daikin is a broad incumbent that competes with Celsius on the heat pump component of geoenergy solutions, leveraging massive distribution and R&D scale.

Direct peers

• ENGIE: Major French multinational utility with deep geothermal operations (notably in the Paris Basin) and district heating/cooling networks across Europe. ENGIE competes head-to-head with Celsius on geothermal district heating in France and is also a visible reference partner on Celsius's website.
• Veolia: Operates extensive district heating and cooling networks across Europe, increasingly integrating geothermal and waste-heat recovery. Veolia is a direct competitor to Celsius's Thermal Energy Networks offering, especially in French municipal and urban deployments.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UC-qLicIzvKo7vOS7qb0CdeQ
• LinkedInlinkedin.com/company/celsius-energy

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Celsius Energy