What HEKLADONIA does

HEKLADONIA is a French environmental engineering consultancy (bureau d'études) founded in 2018 and headquartered in Paris, with a secondary office in Besançon/Rioz. The firm operates across three integrated service pillars: diagnostic and remediation of polluted sites and soils (NFX 31-620 compliant), ecological recovery (reconquête écologique), and living soils restoration (sols vivants). It serves predominantly French public-sector clients — including EPA Nice Ecovallée, EPA Sénart, EPA Alzette Belval, Département 78, Nantes Métropole, and Valophis Habitat — alongside a small private-sector footprint (INSEAD, SOGEPA) and a recent expansion into Belgium via a 300-hectare Arcelor Mittal brownfield project in Liège.

The firm's technical stack combines field-based soil diagnostics with drone-deployed 2D/3D remote sensing and NDVI/SAVI vegetation-index analysis, plus deployable phytoremediation systems. A peer-reviewed publication in the Journal of Hazardous Materials (2022) and an R&D partnership with the Laboratoire Chrono-environnement provide scientific backing for its living-soils and phytoremediation methodologies. The team, led by founding partner Gilles Gallinet (20+ years across geology, pedology, ecology, and agronomy), is small (1–10 employees) and interdisciplinary.

Revenue is generated through project-based consulting contracts awarded via public tender and direct commission, with mandate sizes ranging from single-digit hectare ecological restoration studies (e.g., 14ha Vallée du Var Nice, 2025) to multi-hundred-hectare brownfield programs (300ha Arcelor Mittal Belgium; 130ha Dammarie-les-Lys). Pricing follows standard French bureau d'études fee structures tied to project complexity, regulatory scope, and stakeholder coordination requirements. The firm is privately held, bootstrapped, and has not disclosed any external funding rounds.

Name

HEKLADONIA

Legal name

SAS HEKLADONIA

Website

https://hekladonia.com

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

1–10 employees

Short description

HEKLADONIA is a French environmental engineering consultancy (founded 2018, Paris) delivering polluted-soils diagnostics (NFX 31-620), ecological restoration, and living-soils services to public-sector clients across France and Belgium. It combines field expertise with drone-based remote sensing and phytoremediation systems.

Ownership category

akta.pro rank

Product category

Environmental Consulting Services

NAICS

Remediation Services (56291)

SIC

Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

Site Assessment & Remedial Investigation (Phase II/III, Sampling & Characterization) (EUAIALAA)

akta.pro secondary industries

Brownfield Redevelopment & Land Reclamation (Cleanup for Reuse, Risk-Based Closure) (EUAIALAI), Urban Renewal, Brownfield Redevelopment & Land Reuse (BPAIANAI)

Keywords

• Environmental consulting services
• Soil remediation consulting
• Ecological restoration engineering
• Urban ecology design
• Brownfield redevelopment consulting

Headquarters

HQ city

Paris

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

Revenue model

1. Environmental Consulting Services: Professional consulting fees for environmental site studies, pollution diagnostics following NFX 31-620 standards, ecological restoration project design, and construction supervision for contaminated sites and urban ecology projects.
2. Master Planning and Design: Fees for master planning, urban ecology design, and ecosystem restoration project development including diagnostic studies, project conception, and implementation support.
3. Scientific Research and R&D: Research and development activities conducted in partnership with laboratories and institutions, contributing to scientific knowledge while advancing proprietary methodologies.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels3 records

Core offering

HEKLADONIA is a French environmental engineering and project bureau that designs and delivers ecological restoration, soil remediation, and biodiversity projects for degraded, urban, and industrial brownfield sites. Its work spans polluted site diagnostics under the NFX 31-620 standard, design of phytoremediation and de-pollution gardens, living soil reconstitution, and drone-based 2D/3D ecosystem monitoring. Projects combine field naturalist observation with applied geosciences (geology, pedology, agronomy, hydrogeology, ecology) and are delivered as consulting mandates, project management (maîtrise d'œuvre), and AMO renaturation assistance for public agencies, municipalities, and private developers across France and Belgium.

Product overview

HEKLADONIA is a French environmental study and project bureau offering specialized consulting services organized around three core pillars: Sites et sols pollués (polluted sites and soils management), Reconquête écologique (ecological recovery), and Sols vivants (living soils restoration). The company provides integrated services from diagnosis to project design and monitoring, operating within the NFX 31-620 standard framework. Their offerings include AMO renaturation advisory services, phytoremediation and functional ecosystem design, drone-based 2D/3D remote sensing and GIS cartography, invasive species management, and scientific R&D. The company works across industrial wastelands, urban environments, natural areas, and degraded sites, combining geosciences with ecosystem sciences to reconstitute functional ecosystems where living soils support urban biodiversity.

Differentiator

Problem solved

Functional benefit

Products and services

• Sites et sols pollués (Polluted Sites and Soils) Environmental consulting services for diagnosing, managing, and remediating polluted sites and soils, conducted within the framework of the NFX 31-620 standard. Includes pollution studies and diagnostics, pollution management, remediation project design, management plans (Plans de Gestion / PG), and monitoring during exploitation and post-exploitation. Targeted at public agencies, municipalities, and private developers with contaminated land liabilities.
• Reconquête écologique (Ecological Recovery) Urban ecology and ecological restoration services focused on creating functional ecosystems in urban and rural environments. Covers rehabilitation of industrial brownfields and degraded sites, post-exploitation of ISD (landfill), mines and quarries, reconstituted ecological reconquest, rain gardens and alternative stormwater management, and functional phytoremediation ecosystems. Targeted at municipalities, EPAs, and developers redeveloping degraded urban and industrial land.
• Sols vivants (Living Soils) Pedology, geology, agronomy, and microbiology services focused on soil restoration, de-artificialization, and biological activation of soils to create living, fertile substrates. Includes reconstitution of living soils, circular economy approaches to earth materials, soils on slab conditions, and soils for green roofs. Targeted at renaturation project owners and developers integrating living soils into urban and post-industrial projects.
• AMO Renaturation (Assistance à Maîtrise d'Ouvrage Renaturation) Project owner advisory services for renaturation mandates including feasibility studies, soil characterization, biodiversity enhancement planning, and long-term monitoring support. Targeted at public project owners (EPAs, municipalities, metropolitan authorities) and large private developers needing independent expertise to scope and steer ecological restoration projects.
• Phytoremediation and Functional Ecosystems Depollution gardens and phytoremediation ecosystems that use plants and soil biology to remediate contaminated soils and waters, including rain gardens for stormwater management. Targeted at contaminated site owners requiring nature-based remediation and at developers integrating functional ecosystems into urban project design.
• SIG Cartography Services Geographic Information System (GIS) cartography services for pollution mapping, artificialized soils, invasive species, wetlands, and ecological biotopes, utilizing drone-based 2D/3D remote sensing. Targeted at public agencies conducting environmental diagnostics and at private developers and landowners requiring spatial mapping of ecological and contamination conditions.
• Drone 2D/3D Remote Sensing Aerial drone mapping and remote sensing services for vegetation monitoring, including NDVI, SAVI vegetation indices, canopy surface mapping, and 3D volumetric analysis for ecosystem monitoring. Underpinned by peer-reviewed research published in the Journal of Hazardous Materials (2022) on UAV 3D imaging combined with in-situ measurements of water evaporation and trace element uptake by tree species in red gypsum landfill environments. Targeted at contaminated site owners and ecological restoration project sponsors requiring quantitative vegetation and ecosystem metrics.
• Invasive Species Management Diagnosis, cartography, and management projects for invasive exotic species (EEE), including prevention, ERC (Escape, Restoration, Compensation) measures, and sustainable ecosystem-based competition approaches. Targeted at public and private space managers, landowners, and conservation managers responsible for long-term stewardship of natural and post-restoration sites.
• River and Wetland Restoration Natural environment restoration services for rivers, canals, wetlands, and water bodies including remeandering, bank enrichment, and functional restoration. Targeted at public water authorities, municipalities, and developers integrating hydrological restoration into urban, peri-urban, and post-industrial project scopes.
• Scientific Research and R&D Applied scientific research in phytoremediation, ecosystem monitoring via drone 2D/3D remote sensing, living soil restoration, and ecological dynamics observation, conducted in partnership with laboratories and institutions such as the Chrono-environnement laboratory at Université de Franche-Comté. Targeted at public research funders, partner laboratories, and clients requiring evidence-based methodologies for phytoremediation and ecosystem restoration.

Quantifiable outcome

• 120ha urban ecology project at Nantes Bords de Loire
• +3 more outcomes

Named customers8 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

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, major and minor.

• Laboratoire Chrono-environnement (Université de Franche-Comté)coreStrategic or Co-development Partner · 1 January 2014Research partnership with university laboratory for scientific research on phytomanagement and phytoremediation at Tronox chemical site, including UAV 3D imaging and trace element uptake studies. Results published in Journal of Hazardous Materials 2022.
• SOGEPA (Société de Gestion et de Participations)coreStrategic or Co-development PartnerStrategic partnership with SOGEPA for the masterplan of 4 Arcelor Mittal industrial brownfields (300ha) in Liège, Belgium, focusing on environmental cicatrization and ecological restoration of former metallurgical sites.
• Agence TER (Landscape Architecture)coreStrategic or Co-development PartnerOngoing partnership with Agence TER as landscape architecture lead on multiple urban ecology projects including INSEAD campus, Grand Parc Garonne Toulouse, and Petit Rhin Strasbourg.
• EPA Alzette BelvalcoreStrategic or Co-development PartnerPartnership for eco-district development on industrial brownfield, natural zone, and agricultural land at Rédange Crassier with biodiversity positive approach.
• OLM PaysagistesmajorImplementation/ SI/ Consulting PartnerPartnership with OLM paysagistes for renaturation project on former Aéropostale runway in Toulouse, handling ecosystem soil reconstitution and circular economy of earth materials.
• Sciences EnvironnementminorStrategic or Co-development PartnerPartnership for fauna and flora diagnostic on industrial brownfield sites, complementing Hekladonia's geological and soil expertise.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• AUDDICE Environnement: French environmental engineering office delivering ecological engineering, contaminated site diagnostics and natural-area management studies — same professional-services model and same mix of public-sector and private developers.
• Sage Environnement: Small French environmental consultancy providing ecological diagnostics, soil studies and natural-area management to municipalities and private developers — same scale tier and same project-based consulting model.
• GéoPlusEnvironnement: French specialist bureau focused on soil, groundwater and contaminated site studies for developers and public-sector clients — same NFX 31-620-style polluted-site diagnostic work and same client profile.
• Ecosphère: French environmental bureau d'études with comparable activities in ecological diagnostics, fauna/flora inventories, and ecological restoration project design — competes for the same French public-sector ecological reconquest tenders.
• Biotope: French ecological consultancy specializing in biodiversity inventories, ecological reconquest, and environmental studies — directly comparable niche to Hekladonia's reconquête écologique and living soils work, with a larger national footprint but similar professional-services model.

Broad incumbents

• Bureau Veritas: Global testing, inspection and certification major with a significant French environmental compliance and contaminated-site practice — large incumbent serving the same municipal and industrial buyers but across a much wider service portfolio.
• WSP France: Global engineering consultancy with a substantial French environmental practice covering site assessment, remediation, and ecological engineering — competes for the same brownfield and urban-ecology tenders, but as part of a global multi-discipline portfolio.
• Antea Group: France-anchored environmental and infrastructure engineering consultancy delivering site assessment, remediation design, and ecological engineering at much larger scale — competes for the same EPA and industrial-redevelopment contracts.
• SUEZ Consulting (Safège / Gérer): Environmental and water-consulting arm of SUEZ group, active in contaminated land, ecological engineering and urban environmental services in France — overlaps on brownfield redevelopment and ecological reconquest work as part of a much wider portfolio.
• Setec: Major French engineering group with an environmental and ecological engineering practice covering site diagnostics, ecological reconquest and urban environmental studies — competes for similar large public-sector briefs.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/hekladonia

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 HEKLADONIA