SOL PAYSAGE

What SOL PAYSAGE does

SOL PAYSAGE is a French private engineering consultancy (bureau d'études) founded in 1995 by Xavier Marié and headquartered in Orsay, with a regional antenna in Lille. The firm delivers pedological and landscape engineering services across the full project lifecycle — strategic urban planning, preliminary feasibility studies, regulatory wetland delineation, operational design engineering, execution support, and long-term green-space management — plus professional training and applied R&D. Its underlying technology rests on specialized soil-science and landscape-engineering expertise (manual auger surveys, agro-pedological diagnostics, SIG-based urban soil mapping, and circular-economy soil-reconstitution protocols such as TERNATEC developed with SPL Lyon Confluence) rather than on software platforms.

The company serves a hybrid B2B/B2G client base comprising local authorities, public development agencies (notably EPA Paris-Saclay), state services, private developers, design firms, construction companies, and green-space managers. Marquee engagements include the SOLZAN urban soil map of Ris-Orangis (850 hectares, AMI ZAN ADEME laureate), Grand Paris Express Ligne 18 excavated-soil valorization (1 million m3) with Bouygues TP and Société du Grand Paris, wetland studies for Groupe ADP at Paris-Charles de Gaulle, and the Pépiniière transitoire de Corbeville (1,800 trees) for EPA Paris-Saclay. Revenue is generated through project-based professional services fees invoiced per mission, primarily via responses to public tenders (appels d'offre) and negotiated quotations (devis), with no disclosed pricing or productized SaaS revenue. The firm operates with an estimated 10–12 employees across two poles (Pôle Sol and Pôle Paysage), is entirely founder-owned with €124,000 of share capital, and has no external institutional investment.

Name

SOL PAYSAGE

Legal name

SOL PAYSAGE

Website

https://solpaysage.fr

Company type

Private

Founded year

1995

Operating status

Operating

Headcount range

11–50 employees

Short description

SOL PAYSAGE is a French soil and landscape engineering consultancy founded in 1995, delivering pedological studies, urban soil mapping, wetland delineation, and circular-economy soil-reconstitution services to public agencies, developers, design firms, and construction companies across France.

Ownership category

akta.pro rank

Product category

Environmental Engineering Services

NAICS

Landscape Architectural Services (541320)

akta.pro primary industry

Landscape Construction Project Management & General Contracting (HSAIABAK)

Keywords

• Soil engineering consulting
• Landscape engineering services
• Urban planning consulting
• Agropedological diagnostics
• Wetland delineation studies

Headquarters

HQ city

Orsay

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Professional consulting and engineering studies: Sol Paysage provides specialized engineering studies in pedology and landscape architecture to public and private sector clients. Revenue is generated through project-based consulting fees, typically invoiced per mission/study. Services span urban studies, preliminary studies, regulatory studies, operational studies, execution studies, management studies, training, and innovation partnerships. The firm operates in France primarily, serving local authorities, state services, developers, design firms, and construction companies.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

Sol Paysage provides specialized soil (pedological) and landscape engineering studies, consulting, and training for urban planning and ecological projects in France. The firm delivers agropedological diagnostics, urban soil mapping (including the proprietary SOLZAN method), regulatory wetland delineation studies, circular economy engineering for excavated soils (TERNATEC method), fertile soil design and execution monitoring, and professional training for public authorities, developers, design firms, construction companies, and space managers.

Product overview

SOL PAYSAGE is a soil and landscape engineering consultancy offering a unified portfolio of eight interconnected professional services. The core offering centers on agropedological studies (soil diagnostics, wetland delineation, soil functionality assessment) and landscape engineering, progressing from strategic urban planning (Études Urbaines) through preliminary feasibility (Études Préalables), regulatory compliance (Études Réglementaires), design engineering (Études Opérationnelles), execution support (Études d'Exécution), and long-term management planning (Études de Gestion). These studies are supported by professional training programs and applied research & development initiatives. The consultancy operates two specialized poles: the Sol (Soil) pole conducting pedological investigations, and the Paysage (Landscape) pole delivering landscape engineering and project management. Services are delivered to diverse clients including local authorities, developers, state agencies, design firms, construction companies, and space managers, with projects spanning urban planning, environmental compensation, circular economy of excavated earth, and green space management.

Differentiator

Problem solved

Functional benefit

Products and services

• Études Urbaines (Urban Studies) Strategic soil knowledge integration into urban planning decisions, SCoT, and PLU(i) documents, including soil mapping and analysis for land sobriety (ZAN trajectory), deimpermeabilization, and ecological tramas. Targeted at local authorities, public development agencies, and elected officials.
• Études Préalables (Preliminary Studies) Assistance to project owners (maîtrise d'ouvrage) in understanding soil characteristics for agropedological diagnostics, earthwork balance studies, and soil reuse optimization to reduce costs and carbon footprint. Targeted at developers and project owners.
• Études Réglementaires (Regulatory Studies) Environmental evaluation of wetlands through pedological and botanical approaches, applying the Avoid-Reduce-Compensate (ERC) sequence and designing proportionate ecological compensation measures. Targeted at state services, developers, and maître d'œuvre.
• Études Opérationnelles (Operational Studies) Design and implementation of landscaping projects within multidisciplinary design teams (maîtrise d'œuvre), including soil engineering, circular economy of excavated earth, fertile soil design, and nature-based solutions from AVP through AOR phases. Targeted at maître d'œuvre and project owners.
• Études d'Exécution (Execution Studies) Technical-economical optimization during bidding, production of execution plans and details, quantities, estimates and phasing, supporting landscaping and construction companies through quality control and budget/schedule follow-up. Targeted at construction companies (entreprises de travaux).
• Études de Gestion (Management Studies) Diagnostic of green space heritage including soil analysis, ecological continuities, and brown frames, with operational management plans, differentiated management objectives, intervention calendars, and multi-year budgets. Targeted at public or private space managers (gestionnaires d'espace).
• Formation (Professional Training) Professional training programs on soil engineering, rainwater management, ecological engineering, and landscape engineering for students and practitioners, including theoretical modules and practical field workshops. Targeted at universities (e.g., ENSP Versailles), professional collectives, companies, and design firms.
• Innovation (Research & Development) Co-imagination, testing, and dissemination of sustainable solutions including soil mapping, circular economy engineering, deimpermeabilization, ecological engineering, and soil reuse methods through partnerships with laboratories, companies, and local authorities. Includes the TERNATEC circular economy method for fertile substrate reconstitution.

Quantifiable outcome

• 1 million m3 of excavated soil valorized through agronomic reuse pathways on Grand Paris Express Ligne 18
• +3 more outcomes

Named customers10 records

Segments6 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• SPL Lyon Confluence / Grand LyoncoreStrategic or Co-development Partner · 1 June 2019Partnership for the TERNATEC demonstrator project - a circular economy solution for producing fertile substrates from excavated soils. Sol Paysage designed and monitored the evolution of amended excavated soil quality over 2.5 years, developed operational quality control methods, and produced the TERNATEC Guide for replication.
• CeremacoreStrategic or Co-development PartnerCerema (Centre d'études et d'expertises sur les risques, l'environnement, la mobilité et l'aménagement) is a French public institute for ecological transition. Sol Paysage collaborates with Cerema on research and methodological development for soil and landscape engineering.
• Union Professionnelle du Génie Écologique (UPGE)coreStrategic or Co-development PartnerUPGE is a professional union for ecological engineering. Xavier Marié serves as President of the SOL Working Group of UPGE since 2017, positioning Sol Paysage at the center of professional standards development in soil and ecological engineering in France.
• AFES - Association Française pour l'Étude du SolcoreStrategic or Co-development PartnerAFES is the French association for soil science research and study. Xavier Marié served as administrator of AFES between 2021 and 2025, and Sol Paysage team members contribute to soil science publications and communications.
• Plante et Cité - Ingénierie de la nature en villecoreStrategic or Co-development PartnerPlante et Cité is a reference center for urban nature engineering. Xavier Marié serves as administrator of Plante et Cité since 2016, providing Sol Paysage with access to cutting-edge research and a central position in the French urban nature network.
• CIBI - Conseil International Biodiversité et ImmobilierminorStrategic or Co-development PartnerCIBI is an international council linking biodiversity and real estate/development. Sol Paysage participates in this network as part of its commitment to integrating biodiversity into urban development projects.
• Cluster Eau Milieux SolsminorStrategic or Co-development PartnerRegional cluster bringing together water, aquatic environments, and soil sector actors. Sol Paysage participates to collaborate on cross-disciplinary solutions at the intersection of water management, aquatic environments, and soil engineering.

Scale indicators10 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Egis: Egis is a major French engineering group with environmental, urban, and infrastructure divisions offering landscape and ecological engineering services. Parent of Burgeap; competes with Sol Paysage on Grand Paris-area infrastructure projects but at significantly larger scale.
• SCE (Setec Group): SCE is a French engineering consultancy within the Setec group active in environment, urban planning, and infrastructure. Comparable in B2G/B2B project delivery model and environmental/landscape capabilities, though much larger and more diversified.
• INGEROP: INGEROP is a large French engineering consultancy active in infrastructure, environment, and urban development with overlapping capabilities in soil studies, landscape integration, and ecological engineering. Broader scope and larger scale than Sol Paysage, but competes for similar public tenders.

Emerging players

• TERAO: TERAO is a French sustainable development and energy-environment consultancy with adjacent expertise in urban ecology and circular economy. Overlaps with Sol Paysage in circular-economy of excavated materials and environmental compliance for developers, though more focused on energy/carbon.

Direct peers

• Burgeap: Burgeap is a French soil, water, and environment engineering consultancy (Egis subsidiary) delivering site diagnostics, contaminated-soil studies, and hydrogeology for urban and infrastructure projects. Directly comparable in soil-science expertise and B2G tendering model, though larger and broader in scope.
• Agence TER: Agence TER is a leading French landscape architecture firm working on urban planning, public spaces, and large-scale territorial projects. Comparable to Sol Paysage in landscape-engineering positioning and developer/state clientele, though more design-architecture oriented.
• Biotope: Biotope is a French environmental consultancy specializing in biodiversity, ecology, and natural environment engineering with significant soil and landscape overlap. Comparable to Sol Paysage in serving public developers and state services on ecological and pedological studies, with broader geographic coverage across France.
• Atelier Descombes Rampini: Atelier Descombes Rampini is a French landscape architecture firm working on urban parks, public spaces, and large-scale territorial projects. Comparable to Sol Paysage in developer/state clientele and landscape-engineering positioning on ZAC and urban renewal mandates.
• Michel Desvigne Paysagiste: Prominent French landscape architecture firm collaborating with Sol Paysage on the ZAC de l'École Polytechnique. Operates in the same urban development / public space segment, often as maître d'œuvre alongside soil/landscape engineering consultancies.
• Base (architecture/paysage): Base is a French landscape architecture firm collaborating with Sol Paysage on the Lyon Confluence TERNATEC demonstrator project. Directly comparable on integrating landscape design with soil engineering and circular economy approaches for urban projects.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/sol-paysage

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 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 SOL PAYSAGE