ARIES Consultants

What ARIES Consultants does

ARIES Consultants is a Belgian environmental engineering consultancy founded in 1989, headquartered in Wavre with a secondary office in Brussels. The firm operates as a multidisciplinary bureau d'études en environnement serving project developers, businesses, agricultural operators, public authorities, and private individuals across the Walloon and Brussels-Capital regions. Its service portfolio spans fourteen practice areas organized around environmental permits and impact assessments, urban planning and landscape, biodiversity and Natura 2000, soil pollution and remediation (via the ARIES-Soil subsidiary), hydrology and stormwater management, mobility and traffic (including VISSIM simulation), acoustics and vibration, energy audits (PEB, AMURE/UREBA), climate and carbon services (EPD, CSRD, ESG, European Taxonomy), BREEAM certification consultancy, and heritage and socio-economic studies. Underlying technology relies on specialized modeling and simulation tools (VISSIM, AUTOTURN, ArcGIS, QGIS) paired with proprietary methodologies including the IQSW-Citoyen soil quality index.

The firm monetizes exclusively through fee-for-service professional engagements, priced on a per-project basis tailored to scope, complexity, and regulatory framework (Wallonia vs. Brussels), typically structured as multi-year contracts. Its competitive position is anchored by mandatory agréments (regulatory approvals) from SPW-DGO3 and Bruxelles-Environnement across eight-plus expert categories, which legally restrict the universe of firms that can submit official environmental studies and permit dossiers in Belgium. Distribution is direct B2B and public-sector engagement via the Wavre and Brussels offices, supplemented by federation memberships (Ecobuild Brussels, fedEIE, FEDEXSOL), an active news/case-study website, and presence on Facebook and LinkedIn.

ARES holds eleven named public-sector and enterprise client engagements including Holcim (quarry EIE), STIB (hydrology for Bus Master Plan), Schaerbeek Formation (RIE), Bruxelles Mobilité (CO2 analysis), Les Volailles de Bertrix (EIE for poultry farm expansion), and Evergreen Bio Energy (landscape analysis for biomethanization). The firm employs 55 professionals (6 Direction + 49 collaborators) and is privately held with no external investors, governed by a six-person Direction team covering CEO (Gilles Ledent), CFO (Christopher Goffard), HR (Yolande de Ridder), and three practice-line Directors. Recent corporate actions include a March 2025 headquarters relocation to larger Wavre offices and a June 2025 renewal of the SPW-DGO3 soil management expert agrément for a five-year term.

Name

ARIES Consultants

Legal name

ARIES Consultants

Website

https://ariesconsultants.be

Company type

Private

Founded year

1989

Operating status

Operating

Headcount range

11–50 employees

Short description

ARIES Consultants is a Belgian environmental engineering consultancy serving project developers, businesses, agricultural operators, and public authorities across Wallonia and Brussels-Capital with fourteen disciplines including permitting, impact assessment, soil pollution, hydrology, energy, and climate services, anchored by mandatory agréments from regional authorities.

Ownership category

akta.pro rank

Product category

Environmental Consulting Services

NAICS

Environmental Consulting Services (54162), Environmental Consulting Services (541620), Management, Scientific, and Technical Consulting Services (5416), Other Scientific and Technical Consulting Services (54169)

SIC

Services-Management Consulting Services (8742), Services-Engineering Services (8711), Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Environmental Impact Assessment (EIA) & Due Diligence (BPAHAJAB)

akta.pro secondary industries

Environmental Compliance & Permitting (BPAHAJAA), All Appropriate Inquiries (AAI) & ASTM Phase I ESA (EUAHAEAA), Real Estate Market Research & Economic Advisory (Demand/Supply, Location Analytics) (BPAJANAD)

Keywords

• Environmental consulting services
• Soil pollution assessment
• Environmental impact studies
• Hydrology stormwater management
• Sustainable building certification

Headquarters

HQ city

Bierges

HQ country

Belgium

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Environmental impact and feasibility studies: Professional services revenue from conducting environmental studies including EIE, RIE, NEIE, soil studies, hydrological studies, acoustic studies, energy audits, biodiversity assessments, and heritage studies for project developers, businesses, government entities, and private individuals.
2. Environmental permitting advisory and accompaniment: Advisory and administrative accompaniment services guiding clients through environmental and urban permitting procedures in Wallonia and Brussels, including dossier preparation, coordination, and regulatory compliance follow-through.
3. BREEAM certification consultancy: Technical consultancy for BREEAM sustainable building certification, providing specialized studies required for BREEAM credits (ecology, contaminated land, acoustics, energy modeling, mobility, hydrology, soil pollution).
4. Climate and carbon services (EPD, Carbon Balance, ESG): Services including Environmental Product Declarations (EPD/ACV), carbon footprint assessments (Scopes 1, 2, 3), carbon reduction plans, ESG strategy building, CSRD extra-financial reporting, and European Taxonomy eligibility analysis.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels5 records

Core offering

ARIES Consultants is a multidisciplinary environmental consulting bureau (bureau d'études) providing environmental studies, impact assessments, permitting support, and technical advisory services to businesses, developers, public authorities, and agricultural operators in Wallonia and Brussels-Capital Region. The firm offers 14+ specialized service lines including environmental permits (permis d'environnement), environmental impact studies (EIE/RIE/NEIE), soil pollution studies via its ARIES-Soil subsidiary, hydrology and stormwater management, biodiversity and Natura 2000 assessments, mobility and traffic studies, acoustics, energy audits, urban planning, BREEAM certification support, climate/carbon services, and socio-economic studies.

Product overview

ARIES Consultants is an environmental consulting firm (bureau d'études en environnement) providing multidisciplinary environmental services. The company offers a comprehensive portfolio of 14+ specialized services organized into five categories: Permits & Incidences (environmental permits, impact assessments), Territory (urban planning, landscape, heritage), Nature & Water (biodiversity, hydrology, soil pollution), Technical Expertise (acoustics, energy, mobility), and Sustainable Development & Climate (carbon footprint, BREEAM certification, climate adaptation). The core offering is supplemented by a specialized sub-brand, ARIES-Soil, dedicated to soil pollution studies. Additionally, the company developed the IQSW-Citoyen tool for citizen soil quality assessment. Services are delivered in both Wallonia and Brussels regions through approved experts holding official agréments from regional authorities.

Differentiator

Problem solved

Functional benefit

Brands

• ARIES-Soil: Specialized department for soil pollution studies and groundwater advice, created as a dedicated division of ARIES Consultants for soil contamination expertise.

Products and services

• Environmental Permits and Authorization (Demandes de permis et Autorisation) Preparation and accompaniment of environmental permit dossiers (permis d'environnement, permis unique, permis mixte) and administrative authorizations for projects in Wallonia and Brussels, leveraging agréments-approved expertise.
• Environmental Impact Assessment (Évaluation des incidences) Conducting environmental impact studies including Rapport d'incidences (RI), Étude d'incidences (EI), and Notice d'évaluation (NEIE) for projects across all categories in Wallonia and Brussels.
• Mobility, Traffic and Parking Studies (Mobilité, trafic et stationnement) Mobility studies, traffic analysis, parking studies, accessibility assessments, transport plans, counting campaigns, traffic simulations using VISSIM, and infrastructure sizing for public authorities and developers.
• Biodiversity Studies (Biodiversité, faune et flore) Floristic and faunistic inventories, chiropters surveys, habitat mapping, management plans, Natura 2000 appropriate assessments, ecological strategy, and green space development with EVE label certification.
• Territorial Planning, Landscape and Urbanism (Planification territoriale, paysage et urbanisme) Territorial diagnostics, landscape studies, master plans, eco-district design, communal plans, PPAS, development schemes, and site redevelopment planning.
• ARIES-Soil – Soil Pollution and Land Management

Quantifiable outcome

• Regulatory approval renewal for soil pollution expertise in Wallonia for a new 5-year period (June 2025)
• +3 more outcomes

Named customers6 records

Segments4 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

Four partnerships are on record, tiered core and minor.

• Sol-ExcoreStrategic or Co-development Partner · 2 October 2025Annual training partnership between ARIES-Soil and Sol-Ex. The annual meeting features presentations on soil pollution topics (IQSW, Brudalex 3.0, IQSB, concrete cases on ED, RES, PFAS, RQT, remediation, etc.), field workshops on the IQSW citizen soil quality guide, and knowledge sharing. Sol-Ex is a soil analysis laboratory serving environmental consultants.
• Ecobuild BrusselsminorStrategic or Co-development PartnerARIES Consultants is a member of Ecobuild Brussels, a network of actors in sustainable construction and renovation in Brussels. Membership provides networking opportunities within the Belgian sustainable construction ecosystem.
• fedEIE (Fédération des Bureaux Agréés en Etudes d'Incidences sur l'Environnement)coreStrategic or Co-development PartnerARIES Consultants is a member of fedEIE, the federation of accredited environmental impact study firms. Membership in this professional body is significant for an agréé consultancy as it connects ARIES to the broader network of authorized environmental practitioners and influences sector standards and practices.
• FEDEXSOL (Fédération des Experts en Etudes de pollution des Sols de Bruxelles et de Wallonie)coreStrategic or Co-development PartnerARIES Consultants is a member of FEDEXSOL, the federation of soil pollution study experts in Brussels and Wallonia. ARIES operates a dedicated subsidiary (ARIES-Soil) for soil pollution studies, and FEDEXSOL membership is integral to this specialization, providing professional recognition and sector representation.

Scale indicators6 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• IMDC: IMDC is a Belgian engineering consultancy focused on water, environment, and infrastructure studies including hydrology, hydrodynamics, and environmental impact assessments. Directly comparable to ARIES' hydrology and EIA services within the Belgian market.
• SPAQuE: SPAQuE is the Walloon public-interest company specialized in soil pollution diagnostics, characterization studies, and remediation project management. Directly comparable to ARIES-Soil for soil and groundwater mandates in Wallonia, with strong overlap in soil agréé expertise and regulatory workflow.
• Bureau Greisch: Bureau Greisch is a long-established Belgian engineering consultancy with environmental, structural, and urban-planning practices. Comparable to ARIES in multidisciplinary engineering-led environmental advisory for Belgian infrastructure and development projects.

Broad incumbents

• Ramboll: Ramboll is a global engineering, environment, and sustainability consultancy with European operations covering EIA, climate, ESG, and soil services. Comparable to ARIES in environmental and sustainability advisory breadth, with greater scale and international reach.
• WSP: WSP is a global engineering consultancy with strong Belgian operations in environment, mobility, acoustics, and urban planning. Comparable to ARIES across multiple disciplines (mobility, acoustics, urban planning) and competes for Belgian infrastructure and public-sector mandates.
• Arcadis: Arcadis is a global design, engineering, and environmental consulting firm with a Belgian presence offering EIA, permitting, climate adaptation, and sustainability services. Overlaps with ARIES on environmental impact assessment and climate advisory mandates but at a much larger scale.
• Antea Group: Antea Group is a major European environmental, water, and infrastructure consultancy operating across the Netherlands, Belgium, and France. Comparable to ARIES for environmental impact studies, permitting, and soil/water advisory, with a broader multi-country footprint.
• Environmental Resources Management (ERM): ERM is the world's largest pure-play environmental, health, safety, and sustainability consultancy with growing Belgian and EU presence. Comparable to ARIES for environmental impact, permitting, ESG, and CSRD-related advisory mandates.
• Tractebel (Engie): Tractebel is the Belgian-headquartered engineering and consulting arm of Engie with extensive environmental impact assessment, permitting, and energy/sustainability advisory practices across Belgium and globally. Directly comparable to ARIES for EIA, permitting, and energy audit mandates but operates at vastly larger scale and broader geographic footprint.

Others

• SGS: SGS is a global testing, inspection, and certification company with environmental and soil testing services that overlap with ARIES-Soil's analytical and advisory workflow. Relevant as an adjacent ecosystem participant rather than a direct competitor, given SGS's laboratory-focused model.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks7 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/ariesconsultants.be
• LinkedInlinkedin.com/company/ariesconsultants

Compliance12 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries1 record

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 ARIES Consultants