Sol-Ex sprl, Expertise & conseil environnemental

What Sol-Ex sprl, Expertise & conseil environnemental does

Sol-Ex sprl is a privately held Belgian environmental expertise and consulting firm founded in 2013 and headquartered in Gembloux, Wallonia. The company is officially accredited (agréé) in both the Brussels-Capital Region and Wallonia to conduct soil contamination assessments, remediation supervision, and water management studies under the Brussels Soil Ordinance (Ordonnance sol) and the Walloon Soil Decree (Décret Sols). Operating with approximately 10 employees, Sol-Ex serves real estate developers, industrial operators, public institutions, and property owners who require statutory environmental studies tied to property transactions, construction permits, permit renewals (including IED base reports), and regulatory compliance.

The firm's service portfolio spans four interconnected lines: (1) soil studies — orientation studies (Wallonia, ~€5K–€12K), recognition of soil state (Brussels, ~€3.5K–€10K), characterization/detailed studies (€3K–€25K), risk management, remediation monitoring, and final evaluation; (2) excavated soil management including transport-quality reporting for Wallonia and backfill technical reporting for Brussels; (3) water management encompassing permeability/percolation testing, stormwater infiltration system design, and flood risk assessment; and (4) subsidy/grant application assistance (Brussels soil premiums, Sowalfin business checks). Pricing is project-based, with study fees in the low-thousands to mid-twenties of thousands of euros and remediation construction work ranging from roughly €50,000 to €250,000 excluding VAT depending on complexity.

The go-to-market combines regulatory pull (mandatory studies triggered by property transfers and permits), direct enterprise sales to public institutions and industrial operators, a referral network with notaries, real estate agents, and construction professionals, content marketing through an educational blog and webinars, and a core strategic co-development partnership with Advista for integrated soil + environmental permit + Integrated Stormwater Management (GIEP) offerings. Named clients include the Belgian REIT Cofinimmo, UCLouvain, ISPPC hospital, Century 21, BELGOIMMO, Dare 2 Build, and Group RIEM, with revenue deriving from a mix of transaction-driven one-off engagements and longer remediation project mandates. Sol-Ex is privately held with no disclosed external funding, parent entity, or institutional ownership; Céline Roisin serves as Administratrice déléguée (CEO).

Name

Sol-Ex sprl, Expertise & conseil environnemental

Legal name

Sol-Ex sprl

Website

https://sol-ex.be

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

1–10 employees

Short description

Sol-Ex sprl is a Belgium-based, officially accredited environmental consulting firm operating in Brussels and Wallonia, providing soil contamination studies, remediation oversight, and water management services to real estate, industrial, and public-sector clients.

Ownership category

akta.pro rank

Product category

Environmental Consulting Services

NAICS

Environmental Consulting Services (54162), Environmental Consulting Services (541620)

SIC

Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

Water, Wastewater & Stormwater Compliance (BPAHAJAJ)

Keywords

• Soil contamination assessment
• Environmental consulting services
• Groundwater management
• Site remediation services
• Stormwater management

Headquarters

HQ city

Gembloux

HQ country

Belgium

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Environmental consulting and expertise services: Professional consulting services providing expert environmental assessments, soil contamination studies, groundwater management studies, and remediation project supervision. Revenue is project-based, earned through completion of defined study phases and remediation oversight engagements.
2. Soil studies and assessments: Fees for conducting orientation studies, characterization studies, risk assessments, and remediation projects. Pricing varies by terrain size and complexity, with study phases representing distinct billable engagements.
3. Subsidy/grant assistance services: Assistance services for obtaining environmental subsidies and grants (primes) available in Brussels for soil remediation and risk management projects.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels5 records

Core offering

Sol-Ex is an officially agréé (accredited) environmental expertise and consulting firm providing soil contamination studies (orientation, characterization, detailed and risk studies), remediation project supervision, excavated soil management, groundwater and stormwater management (including permeability testing and flood risk analysis), and subsidy application assistance. Services are delivered to public and private clients across the Brussels-Capital Region and Wallonia, with engagement triggered primarily by regulatory obligations under the Brussels Soil Ordinance and Walloon Soil Decree.

Product overview

Sol-Ex is an approved environmental expertise and consulting firm providing specialized services for polluted soil management and rainwater/groundwater management in Brussels and Wallonia. The company operates as a service-based consultancy rather than a software platform. Its core offerings are organized into three main categories: (1) Soil Studies covering orientation studies, detailed studies, risk management, remediation monitoring, and base reports for IED establishments; (2) Excavated Soil Management including quality reports and technical documentation; and (3) Water Management encompassing permeability testing, stormwater management, and flood risk management. The company also provides subsidy guidance services to help clients access financial assistance for soil studies and remediation.

Differentiator

Problem solved

Functional benefit

Products and services

• Soil State Recognition Study (Reconnaissance de l'état du sol, Brussels) Soil state recognition study for the Brussels-Capital Region, conducted as part of projects such as property sales, real estate transactions, or operating permits to comply with Brussels Environment obligations under the Soil Ordinance.
• Detailed Soil Study (Étude détaillée, Brussels) Detailed soil study in the Brussels Region that precisely delimits the extent, depth, and nature of pollution once initial reconnaissance studies confirm contamination.
• Risk Management Study (Gestion des risques) Risk management service evaluating the potential impact of pollutants on human health and the environment, and determining whether treatment measures are required.
• Remediation Monitoring (Suivi assainissement) Remediation monitoring service supervising decontamination works and conducting final evaluation to obtain administrative clearance, including the soil control certificate.
• Orientation Study (Étude d'orientation, Wallonia) Orientation study for Wallonia that confirms or invalidates the presence of soil pollution through sampling and analysis, evaluating whether regulatory threshold values are exceeded under the Walloon Soil Decree.
• Characterization Study (Étude de caractérisation, Wallonia) Characterization study in Wallonia that precisely defines the extent, depth, and nature of pollution and its potential impact on deep groundwater and other sensitive receptors.
• Base Report for IED Establishments (Rapport de base / IED, Wallonia) Base report service for Industrial Emissions Directive (IED) establishments in Wallonia, required for permit renewal, cessation of soil-risk activities, bankruptcy, or permanent permit withdrawal.
• Excavated Soil Management (Gestion de terres excavées) Excavated soil management service producing soil quality reports before evacuation in Wallonia and technical reports for backfill operations in the Brussels Region.
• Stormwater Management (Gestion des eaux pluviales) Rainwater management service measuring soil permeability and sizing rainwater management structures to promote water infiltration, integrated into construction projects.
• Permeability and Percolation Testing (Test de perméabilité / percolation) Permeability and percolation testing service to assess soil infiltration capacity for proper rainwater management system design.
• Flood Risk Management (Gestion des risques d'inondation) Flood risk management service analyzing hazards, anticipating hydrological constraints, and integrating prevention solutions from the project design phase.
• Subsidy and Grant Assistance (Accompagnement primes et subsides) Guidance service for obtaining subsidies including soil premiums in Brussels for orphan pollution treatment costs and Sowalfin business checks for eligible environmental consulting services.

Named customers7 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Three partnerships are on record, tiered core and minor.

• AdvistacoreStrategic or Co-development Partner · 1 August 2024Strategic collaboration between Sol-Ex and Advista for integrated service offerings combining soil studies with environmental permits. The partnership provides comprehensive solutions for clients with projects requiring both soil contamination assessment and environmental permit applications, as well as integrated support for Integrated Stormwater Management (GIEP) needs.
• UCLouvain (Université catholique de Louvain)minorStrategic or Co-development Partner · 11 February 2021Academic collaboration with UCLouvain bioengineering students for research projects on environmental topics including recycled aggregates potential and phytoremediation in Wallonia. Sol-Ex provides professional guidance and practical case studies for student research projects in environmental technology.
• Sowalfin / Chèques EntrepriseminorOthersSol-Ex holds Sowalfin label for enterprise checks, enabling clients to access subsidies through the enterprise check program for eligible environmental consulting services.

Scale indicators3 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• SGS Belgium: SGS is a global testing, inspection, and certification firm with Belgian environmental services covering site assessment and compliance — broader portfolio but overlapping environmental compliance capabilities.
• Arcadis Belgium: Arcadis is a global design, engineering, and environmental consultancy with Belgian operations covering site investigation, soil remediation, and water management for real estate, industrial, and public-sector clients — broader portfolio but overlapping technical competencies.
• Sweco Belgium: Sweco is a European engineering, environment, and consulting firm with Belgian offices providing environmental site assessments, water management, and infrastructure advisory — overlapping service lines for industrial and public-sector clients.
• Tractebel (Engie): Tractebel is the largest Belgian engineering and environmental consultancy, operating across energy, water, soil, and infrastructure. It overlaps Sol-Ex on environmental permitting, soil studies, and water management but serves a much broader portfolio of large industrial and infrastructure clients.

Direct peers

• Witteveen+Bos Belgium: Witteveen+Bos is a Dutch engineering consultancy with strong water and environmental practices and Belgian operations, delivering soil studies, water management, and flood risk work — a closely comparable technical and regulatory profile.
• Tauw Belgium: Tauw is a Dutch environmental and infrastructure consultancy with Belgian operations offering soil investigation, remediation advice, and water management — directly comparable in technical scope and target clients.
• Royal HaskoningDHV Belgium: Royal HaskoningDHV is a Dutch engineering consultancy with Belgian operations focused on water, environment, and infrastructure, including soil and groundwater investigations — closely comparable environmental and water-management services.
• Antea Group Belgium: Antea Group is an international environmental and infrastructure consultancy with established Belgian operations offering site assessment, soil and groundwater studies, and remediation oversight — directly comparable service lines and target clients to Sol-Ex.

Others

• Eurofins Environment Testing Belgium: Eurofins operates Belgian environmental laboratories providing soil, water, and waste analysis that Sol-Ex coordinates with for sampling — an enabling ecosystem participant rather than direct consulting competitor.

Market position

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/sol-ex

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 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-Ex sprl, Expertise & conseil environnemental