SOLENEOS

What SOLENEOS does

SOLENEOS is a Nantes-headquartered B2B professional services firm that delivers urban microclimate simulation, thermal comfort diagnostics, design assistance, and cooling-solution evaluations to urban developers, architects, landscape designers, municipalities, and engineering firms across France and select European markets. The company was founded in 2020 by urban climatology researcher Benjamin Morille as a technology transfer from over a decade of academic work at CRENAU, the research laboratory of the Nantes School of Architecture; PhD-holding researcher Adrien Gros joined in late 2020. SOLENEOS is incubated at the CAE (Centrale Audencia ENSA) incubator in Nantes and participates in the IRSTV CNRS research federation.

The firm's core technology is SOLENE-microclimat, a proprietary physics-based simulation engine that models coupled physical phenomena—insolation, urban aerodynamics (wind), and heat transfer in materials—delivering calculations with accuracy described as close to field measurements. The methodology incorporates prospective climate change meteorological datasets to assess 2050-horizon resilience and quantifies thermal comfort using UTCI metrics. A derivative product, C-Scool, packages the underlying simulation stack into a self-service diagnostic tool for school courtyard thermal assessment.

SOLENEOS monetizes primarily through quote-based consulting engagements with multi-year contract cadences, structured into four service lines: microclimatic expertise (diagnostics, design assistance, thermal comfort evaluation), cooling-solution evaluation, localized meteorological data production for European projects, and urban heat island training programs. Notable disclosed clients include the Paris 2024 Olympic and Paralympic Village project (with SOLIDEO and CEREMA), the cities of Paris, Marseille, and Toulouse (ZAC Montaudran), Samoa (Ile de Nantes urban developer), and Garcia Ingénierie (La Réunion). Revenue is not publicly disclosed and no external funding rounds, acquisitions, or parent company affiliations have been recorded.

Name

SOLENEOS

Legal name

SOLENEOS

Website

https://soleneos.fr

Company type

Private

Founded year

2020

Operating status

Operating

Headcount range

1–10 employees

Short description

SOLENEOS is a Nantes-based B2B consultancy that delivers urban microclimate simulation, thermal comfort diagnostics, and cooling-solution evaluations to French municipalities, urban developers, architects, and engineering firms, leveraging its proprietary SOLENE-microclimat physics-based simulation tool originally developed at CRENAU.

Ownership category

akta.pro rank

Headquarters

HQ city

Nantes

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales

Revenue model

1. Professional Services (Expertise): Microclimatic expertise services including urban climate diagnostics, design assistance, thermal comfort evaluation, and cooling solution testing. Delivered as consulting engagements to urban planning actors.
2. Meteorological Data Services: Production and provision of localized meteorological data files for European territory projects, including hourly time-step data and prospective climate change data files.
3. Training Services: Training programs on urban heat islands for urban planning actors, training organizations, developers, architects, landscape designers, property developers, engineering firms, and students.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

SOLENEOS provides urban microclimate simulation expertise and tools to urban planning actors, enabling them to assess the thermal impact of urban development choices. The company delivers consulting services covering microclimatic diagnostics, design assistance, thermal comfort evaluation (UTCI), and cooling solution testing, powered by its proprietary SOLENE-microclimat physics-based simulation engine and the C-Scool tool for school courtyards. It also produces localized meteorological data files and provides training on urban heat island mitigation.

Product overview

SOLENEOS is a unified portfolio centered on urban climate simulation technology. The core offering consists of SOLENE-microclimat, a physics-based simulation engine developed from academic research that models coupled physical phenomena (sunlight, wind, heat transfer) in urban environments, and C-SCOOL, a specialized diagnostic tool for school courtyard thermal assessment. These products are supported by professional services including microclimatic expertise, cooling solution evaluation, meteorological data production, and urban heat island training programs.

Differentiator

Problem solved

Functional benefit

Brands

• C-Scool: An online diagnostic thermal tool for school courtyards that quantifies the effectiveness of solutions to mitigate urban heat islands and reduce thermal discomfort. Access to urban microclimate numerical simulations adapted to school courtyard redesign projects.

Products and services

• C-Scool Web-based diagnostic thermal tool for school courtyards that quantifies the effectiveness of cooling solutions and reduces thermal discomfort; provides self-service access to urban microclimate numerical simulations adapted to school courtyard redesign projects. Targeted at municipalities, schools, and urban planning actors.
• Microclimatic Expertise Services Consulting engagements that simulate the thermal behavior of existing neighborhoods or urban development projects, identify thermal discomfort zones hour by hour during heat waves, recommend solutions, and evaluate thermal comfort via UTCI. Includes comparison of design scenarios (urban form, vegetation, materials, water-based cooling) and prospective climate change resilience analysis. Targeted at urban developers, architects, municipalities, and engineering firms.
• Meteorological Data Services Production and provision of localized meteorological data files for European territory projects, including hourly time-step data and prospective climate change datasets. Used to feed microclimatic simulations and assess future resilience at horizons such as 2050. Targeted at urban planning actors and engineering firms requiring local-scale climate inputs.
• Urban Heat Island Training Training programs on urban heat islands delivered to urban planning actors, training organizations, developers, architects, landscape designers, property developers, engineering firms, and students. Designed to build competency in urban climate awareness and design.

Quantifiable outcome

• 2x increase in heat waves expected by 2050
• +3 more outcomes

Named customers6 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Six partnerships are on record, tiered core and minor.

• IRSTV (Institut de Recherche en Sciences et Techniques de la Ville)coreStrategic or Co-development PartnerCNRS research federation (FR2488) conducting urban microclimate and energy transfer research. Contributes to developing knowledge for evaluating mitigation and adaptation strategies for cities facing climate change effects. SOLENEOS participates in IRSTV research activities.
• CEREMAcoreStrategic or Co-development PartnerPublic establishment for ecological transition and territorial cohesion. Provides expertise to public policies. Collaborated with SOLENEOS on Paris 2024 Olympic Village microclimatic study for SOLIDEO.
• CAE Incubator (Centrale Audencia ENSA)coreStrategic or Co-development PartnerStartup incubator program in Pays de la Loire region providing support, coaching, and facilities for innovative entrepreneurs. SOLENEOS is present within this incubator in Nantes.
• CSTB (Centre Scientifique et Technique du Bâtiment)minorStrategic or Co-development PartnerScientific and technical building center participating in climate change research projects alongside SOLENEOS supported by ADEME.
• CRENAU (Centre de Recherche en Environement de l'Architecture et de l'Urbanisme)coreTechnology or IntegrationResearch laboratory at the Nantes School of Architecture where SOLENE-microclimat tool was originally developed. SOLENEOS continues to develop this proprietary simulation tool.
• Réseau Bâtiment DurableminorStrategic or Co-development PartnerSustainable building network contributing to competency development for operational professionals alongside SOLENEOS.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Numtech: French environmental modeling and consulting firm providing air-quality, odor, and atmospheric dispersion simulations to public and private clients; overlaps with Soleneos on physics-based modeling of urban environments for planning actors.
• Vortex (CDS): Provides computational fluid dynamics and microclimate simulation software and services for urban and architectural projects, including wind and thermal comfort modeling — a direct technical competitor in urban microclimate simulation.
• Meteoblue: Swiss-based weather and climate data provider offering high-resolution historical, current, and forecast meteorological datasets across Europe — directly comparable to Soleneos's localized meteorological data file service for urban planning applications.
• Aria Technologies: French environmental modeling firm specializing in urban air-quality, microclimate, and CFD simulations for urban planning projects — directly comparable in offering methodology-based microclimatic consulting to French municipalities and developers.

Emerging players

• GreenFlex: French energy and environmental consultancy supporting real-estate and territories with sustainability, energy efficiency, and climate-resilience services — adjacent player for the same urban-decision-maker buyer personas.
• Carbone 4: French climate and sustainability consultancy focused on decarbonization strategy, climate metrics, and adaptation advisory for public and private actors — adjacent peer addressing overlapping climate-driven urban decision-making needs.

Broad incumbents

• WSP Global: Global professional services firm with a sizable environment and climate-adaptation practice serving municipalities and developers; comparable as a broad incumbent that can absorb or substitute for niche microclimate consulting work.
• Ramboll Group: International engineering, design, and consultancy firm with established urban climate, sustainability, and resilient-cities practices that overlap with Soleneos's microclimate-diagnostic value proposition at city scale.
• Artelia: Large French multidisciplinary engineering group covering buildings, infrastructure, and environment; competes for the same municipal urban-development mandates that often include thermal-comfort and microclimate sub-studies.
• Egis Group: Major French engineering and consultancy firm with urban development, transport, and environmental practices that increasingly incorporate climate resilience and microclimate analyses for municipal clients; broader incumbent but with overlapping service lines.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCiCgxplDVujVdisSLPAKbKg/featured
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• LinkedInlinkedin.com/company/soleneos

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 SOLENEOS