Bureau d'études A+ Concept

What Bureau d'études A+ Concept does

A+ Concept srl is a Belgian multidisciplinary engineering consultancy (bureau d'études) headquartered in Liège with a secondary office in Gosselies (Charleroi), serving Wallonia since 2010. The firm delivers specialized technical studies for construction, renovation, and energy management projects, structured around three departments: Techniques Spéciales (HVAC, electrical, sanitary, fire protection, grid flexibility), Transition Énergétique (UREBA/AMUREBA-certified energy audits, PEB certification, blower door testing, dynamic and hygrothermal simulation, climate adaptation), and Exploitation (technical monitoring). Notable mandates include the decarbonated Tour Uhoda at Spa-Francorchamps meeting FIA 2030 zero-carbon targets, a 36,000 m² social-housing tower renovation for Foyer Anderlechtois, and a 44%-CO2-reduction swimming-pool refurbishment for Visé.

The firm's revenue model is project-based professional services: fees are quote-driven per mandate, typically scoped as one-time engagements on construction projects with budgets ranging €2M-€27M, plus ongoing technical monitoring. Go-to-market relies on public procurement tenders, direct relationships with maîtres d'ouvrage, and partnerships with architectural and construction firms, with the CO2 Performance Ladder Echelon 1 certification delivering a 3-10% fictitious discount advantage in public bids. Customer mix is anchored on Walloon communes, municipalities, and government agencies, complemented by social housing operators, schools, and select private developers.

In 2022, ownership transitioned to Thomas Hausman and Deplasse & Associés; in 2023, the firm joined ALTEO Group, a newly formed parent combining technical and strategic environmental expertise. Headcount stands at approximately 31, with no disclosed revenue or external funding.

Name

Bureau d'études A+ Concept

Legal name

A+ Concept srl

Website

https://aplusconcept.be

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

11–50 employees

Short description

A+ Concept is a Walloon multidisciplinary engineering consultancy specializing in HVAC, electrical, plumbing, fire protection, PEB certification, energy audits, and decarbonation studies for construction and renovation projects, serving communes, social housing operators, schools, and private developers across Belgium.

Ownership category

akta.pro rank

Product category

Building Engineering Consultancy

NAICS

Engineering Services (541330), Architectural, Engineering, and Related Services (5413)

SIC

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

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

akta.pro secondary industries

Performance Contracting & Energy-as-a-Service (EaaS) for Buildings (BPABAGAN), Energy Services (Retrofits/Commissioning/Testing & Balancing) (IMAIABAI)

Keywords

• Engineering consultancy services
• Building energy performance
• HVAC engineering studies
• PEB certification services
• Sustainable construction consulting

Headquarters

HQ city

Liège

HQ country

Belgium

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Studies Services: Professional consulting services for construction projects encompassing special techniques studies, PEB studies, energy audits, and technical monitoring. Revenue generated through project-based fees for studies and ongoing technical assistance.
2. Project-based Studies: One-time project engagements for specific construction or renovation projects, with fees based on project scope, budget, and complexity. Projects range from residential buildings to large infrastructure like sports halls and racing circuit facilities.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

A+ Concept is a multidisciplinary engineering consultancy that delivers technical studies (études) for construction, renovation, and energy optimization projects across Belgium's Wallonia region. Services cover special techniques engineering (HVAC, electrical, sanitary, fire protection), energy transition consulting (UREBA energy audits, PEB certification, blower door testing, dynamic and hygrothermal simulation, climate adaptation studies), and ongoing building operations/technical monitoring. Projects are delivered as professional service engagements for public institutions, architects, contractors, and private building owners.

Product overview

A+ Concept is a multidisciplinary engineering consultancy structured around three main departments: Techniques Spéciales (Special Techniques), Transition Energétique (Energy Transition), and Exploitation (Operations). The core offering is organized as an integrated service portfolio rather than a software platform. Techniques Spéciales covers electrical installations, HVAC & plumbing, and grid flexibility/energy independence solutions. The Energy Transition department provides audit, design, certification, and advisory services including PEB certification, energy audits (UREBA certified), blower door testing, dynamic simulation, and climate adaptation studies. The company also offers CO2 Performance Ladder certification support. All services are delivered as consulting engagements for construction, renovation, and energy management projects, primarily serving public and institutional clients in Belgium.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• 44% CO2 emissions reduction with less than 9-year simple payback for Visé swimming pool renovation
• +2 more outcomes

Named customers9 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

Feature5 records

Partnerships

One partnership is on record.

• ALTEO GroupcoreStrategic or Co-development Partner · 1 January 2023ALTEO Group was created in 2023 to address environmental transition challenges and decarbonation objectives, combining technical expertise in the field with strategic vision for climate and environmental challenges. A+ Concept joined the group to reinforce this dynamic and accelerate the transition toward a sustainable future. The group provides combined technical and strategic expertise to clients.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Sweco Belgium: Sweco is a European engineering and design consultancy with a Belgian practice covering buildings, energy, and urban development. Its integrated energy-and-building services overlap with A+ Concept's audit and special-techniques offering across a broader geographic footprint.
• Arcadis Belgium: Arcadis is a global design and consultancy firm with a Belgian practice in sustainability, buildings, and energy transition. It competes for the same decarbonation and sustainable-design mandates that A+ Concept pursues, but at significantly larger scale and scope.
• Tractebel (Engie): Tractebel is the largest engineering consultancy in Belgium, offering multidisciplinary building and infrastructure design including energy and HVAC services. It overlaps with A+ Concept on building energy, special techniques, and decarbonation studies, but operates globally with a much broader portfolio.

Emerging players

• Crepain Associates: Crepain Associates is a Belgian architecture and engineering practice with a strong sustainability and building-physics focus. It overlaps with A+ Concept on energy-conscious design for residential and institutional buildings, though at smaller scale.

Direct peers

• Greisch: Greisch is a Liège-based multidisciplinary engineering firm with structural, MEP, and building services capabilities. It competes with A+ Concept on the same regional Belgian engineering talent pool and similar public-sector project types.
• Bopro: Bopro is a Belgian sustainability and real-estate consultancy advising on energy, ESG, and building performance. It competes with A+ Concept for energy-audit, PEB, and decarbonation mandates on the same public and institutional client base.
• VK Architects & Engineers: VK is a Belgian multidisciplinary firm combining architecture and engineering (stability, MEP, sustainability) for buildings. It competes most directly with A+ Concept on integrated special-techniques and energy design for public and private construction projects.
• Bureau Bouwtechniek (BBTi): BBTi is a Belgian technical building consultancy focused on building physics, technical installations, and energy performance. Its special-techniques and energy-audit services overlap closely with A+ Concept's Techniques Spéciales and Transition Énergétique departments.
• Buro II & Vanderkelen: Buro II & Vanderkelen is a Belgian architecture and engineering firm combining design, technical installations, and energy performance. Its service portfolio mirrors A+ Concept's three-department model across architecture, special techniques, and sustainability.
• ASSAR Architects: ASSAR is a Belgian multidisciplinary architecture and engineering studio focused on sustainable and energy-conscious building design. Its integrated MEP and energy approach makes it a comparable peer to A+ Concept for public and private sustainable-construction tenders.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/aplusconcept
• LinkedInlinkedin.com/company/a-concept

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

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 Bureau d'études A+ Concept