RHON'ECO

What RHON'ECO does

RHON'ECO is a Lyon-based bureau d'études founded in 2015 that provides three interconnected professional services to public and private clients across France: Economie de la construction (construction economics), OPC (Ordonnancement, Pilotage, Coordination), and AMO (Assistance à Maîtrise d'Ouvrage). The firm supports project owners and architects from feasibility studies through contractor procurement and into execution, with cost estimation, budget optimization, technical specification drafting, scheduling, and on-site coordination. The firm's primary verticals are public buildings, social housing, educational facilities, tertiary/industrial buildings, with a customer base dominated by French social housing landlords (GrandLyon Habitat, Alliade Habitat, OPAC de Savoie, ORVITIS, 3F Immobilière Rhône-Alpes, Advivo, Adoma), municipalities and intercommunalities (Ville de Lyon, Dijon Métropole, Mairie d'Aix-les-Bains, Communauté de Communes Saône-Beaujolais), and education sector clients including ENAC and OGEC.

The technical foundation rests on specialized construction economics tooling rather than proprietary AI: RHON'ECO uses the ATTIC+ platform for 3D modeling, quantity measurement (quantitatif/métré), drafting of technical specifications (CCTP), cost estimates, and comparative analysis of contractor bids, with AUTOCAD used for verification of measurements and drawings. The firm holds OPQTECC professional qualification (first obtained in 2022, renewed 2026) covering Esquisses through Avant-Projet Définitif studies, project studies and work contract assistance, OPC, and quantity surveying across all trades, and is an active member of UNTEC. Lead remediation and demolition training (since 2023) extends scope into renovation/deconstruction mandates.

The business model is professional services revenue, billed as project-based fees for each mission type, acquired through French public procurement (appels d'offres) for government and social housing clients and through direct commissioning for private developers and architectural firms. Marketing and lead generation rely on the company's website, partner-network referrals from a stable roster of collaborating architecture firms (Eka Architectes, Sébastien Viret Architectes, Séméio Architecture, PLAYTIME AA, PSEUDONYME Architecture, ALIX & DELHAYE, PLEIADE Architecture, Atelier d'Architecture YES, ARCHIMEET, BIR Architecture, Claire Tournier Architecte) and engineering consultancies (Studis Ingénierie, AXIOLIS, INOGIE, EDIFIS, VENATECH, JP Ingénierie & Structures, EXACT Acoustique, BOBI Réemploi, STEBAT, PROBAT, Graine d'Idée, Studio Pyc). The company is privately held, founder-led by Adrien DESRUELLE (Responsable), single-office at 100G Cours Lafayette, Lyon 3, with service reach extending from the Auvergne Rhône-Alpes home region into Bourgogne Franche-Comté, Provence Alpes Côtes d'Azur, Occitanie, and Paris.

Name

RHON'ECO

Legal name

RHON'ECO

Website

https://rhon-eco.fr

Company type

Private

Founded year

2015

Operating status

Operating

Short description

RHON'ECO is a Lyon-based French construction economics bureau d'études, founded in 2015, providing cost estimation, OPC scheduling/coordination, and AMO owner-assistance services to public-sector clients, social housing landlords, municipalities, and educational institutions across multiple French regions.

Ownership category

akta.pro rank

Product category

Construction Economics Consulting

NAICS

Business Support Services (5614), All Other Support Services (561990)

SIC

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

akta.pro primary industry

Construction Management (Agency/Owner’s Rep) (IMAFAAAC)

Keywords

• Construction economics consulting
• Construction cost estimation
• OPC project coordination
• Owner assistance services
• Building renovation economics

Headquarters

HQ city

Lyon

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Economie de la Construction (Construction Economics): Professional services providing cost estimation, budget optimization, and economic feasibility studies for construction and renovation projects. Services include preliminary cost studies, detailed estimates, DCE (Dossier de Consultation des Entreprises) preparation, and contract assistance. Revenue is generated through project-based professional service fees.
2. OPC - Ordonnancement, Pilotage, Coordination: Construction site coordination and project management services ensuring adherence to schedules, contractor coordination, and progress monitoring. Billed as professional service fees per project.
3. AMO - Assistance à Maîtrise d'Ouvrage: Owner's representative services for competition juries, programming missions, and preliminary cost estimates.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

RHON'ECO is a French construction economics consultancy (bureau d'études) that provides cost estimation, budget management, technico-economic feasibility studies, and regulatory compliance verification across all phases of building construction and renovation projects. The firm also delivers OPC (Ordonnancement, Pilotage, Coordination) construction scheduling and on-site coordination services during the execution phase, and AMO (Assistance à Maîtrise d'Ouvrage) advisory support to project owners. It primarily serves public sector clients such as municipalities and social housing providers, along with private developers in the Auvergne Rhône-Alpes region and neighboring French regions.

Product overview

RHON'ECO is a construction economics consultancy firm offering three interconnected services: the core 'Economie de la construction' (Construction Economics) service for cost management and budget optimization throughout all project phases; 'OPC' (Ordonnancement, Pilotage, Coordination) for construction scheduling, piloting, and contractor coordination during execution; and 'AMO' (Assistance à Maîtrise d'Ouvrage) as an add-on service for project owner assistance including competition juries and pre-estimation studies. The firm specializes in public buildings, schools, housing, tertiary/industrial buildings, and operates primarily in the Auvergne-Rhône-Alpes region of France.

Differentiator

Problem solved

Functional benefit

Products and services

• Economie de la construction Construction economics consulting covering all project phases from technico-economic feasibility studies through to work contract attribution, including cost analysis, budget planning, financial management, material selection advice, and regulatory compliance verification. Serves public and private Maître d'Ouvrage clients for new construction and renovation projects including public buildings, schools, housing, tertiary, and industrial buildings.
• OPC (Ordonnancement, Pilotage, Coordination) Construction site coordination service during the execution phase, ensuring compliance with work schedules through three core missions: ordonnancement (methodical organization of all contractor interventions), pilotage (continuous works monitoring and follow-up through to defect remediation), and coordination (supervision of project stakeholders including scheduling site visits, leading site meetings, drafting and circulating meeting minutes and acceptance reports). Targeted at medium-sized construction and rehabilitation projects.
• AMO (Assistance à Maîtrise d'Ouvrage) Owner representative assistance service for competition juries, programming missions, and pre-estimation studies. Supports project owners (Maître d'Ouvrage) in upstream project definition, feasibility assessment, and competitive procurement processes.

Quantifiable outcome

• OPQTECC qualified since 2022 for construction economics and OPC missions
• +1 more outcomes

Named customers16 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

Feature2 records

Partnerships

16 partnerships are on record, tiered core, major and minor.

• UNTEC (Union Nationale des Economistes de la Construction)coreStrategic or Co-development Partner · 1 January 2015Active member of UNTEC since company founding in 2015. UNTEC is the national union representing construction economists in France, providing professional standards, training, and industry networking.
• OPQTECCcoreStrategic or Co-development PartnerProfessional qualification organization. RHON'ECO has been OPQTECC qualified since 2022, with qualifications renewed in 2026 covering construction economics missions and OPC services.
• PLAYTIME AA (Architecte)majorStrategic or Co-development PartnerArchitecture firm acting as mandataire on the médiathèque Desbordes Valmore rehabilitation project in Lyon. RHON'ECO provides construction economics and OPC services as part of the project team.
• Studis IngénieriemajorTechnology or IntegrationEngineering consultancy (BET Fluides, VRD) frequently collaborating with RHON'ECO on construction projects including the légumerie Ouges, camping Sierroz, and ENAC Saint-Yan hangar projects.
• ALIX & DELHAYE (Architecte)majorStrategic or Co-development PartnerArchitecture firm collaborating on multiple projects including the ENAC hangar at Saint-Yan and OPAC de Savoie housing projects in Sainte-Hélène-sur-Isère.
• ARCHIMEET (Architecte mandataire)majorStrategic or Co-development PartnerLead architect on the gymnasium Monsols renovation project for the Communauté de Communes Saône-Beaujolais. RHON'ECO provides construction economics and OPC.
• BIR ARCHITECTUREminorStrategic or Co-development PartnerAssociated architect on the gymnasium Monsols renovation project in Deux-Grosnes.
• PLEIADE ARCHITECTUREmajorStrategic or Co-development PartnerLead architect on the 12-logment intermediate housing project at Perrigny-lès-Dijon for ORVITIS social housing provider.
• Atelier d'Architecture YESmajorStrategic or Co-development PartnerArchitecture firm based in Romans-sur-Isère, Drôme. Working with RHON'ECO on Advivo project for building restructuring in Vienne, Isère.
• Eka ArchitectesmajorStrategic or Co-development PartnerListed as a key partner architecture firm in RHON'ECO's network, collaborating on construction economics and renovation projects.
• Sébastien Viret ArchitectesmajorStrategic or Co-development PartnerPartner architecture firm providing construction project collaboration with RHON'ECO.
• Séméio ArchitecturemajorStrategic or Co-development PartnerPartner architecture firm including collaboration on school projects such as the Corcelles-en-Beaujolais restaurant scolaire.
• Claire Tournier ArchitecteminorStrategic or Co-development PartnerPartner architecture firm in RHON'ECO's professional network.
• PSEUDONYME ARCHITECTUREmajorStrategic or Co-development PartnerLead architect on the Camping International du Sierroz restructuring project for Mairie d'Aix-les-Bains.
• Graine d'IdéeminorStrategic or Co-development PartnerListed as a partner in RHON'ECO's network.
• Studio PycminorStrategic or Co-development PartnerListed as a partner in RHON'ECO's network.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Setec Group: French engineering and project management multi-brand group with construction economics and project coordination capabilities. Larger and broader than RHON'ECO but serves the same public/private project owner market.
• Egis: Major French engineering and project management consultancy active in buildings, transport, and energy. Competes with RHON'ECO on larger public construction economics and AMO missions.
• SOCOTEC: Large French TIC (testing, inspection, certification) group with construction economics and project management divisions. Covers a much broader portfolio but competes for the same OPC and AMO contracts on public tenders.
• Artelia: Large French engineering group providing construction economics, project management, and AMO services on building projects. Competes for larger public-sector mandates similar to those offered by RHON'ECO.
• Apave: Established French technical inspection and construction consultancy group with significant construction project management capabilities. Overlaps with RHON'ECO on public building and infrastructure project economics.
• Ginger CEBTP: French construction, geotechnical, and environmental engineering consultancy offering OPC and project management services. Larger and broader than RHON'ECO but competes for the same construction economics contracts.
• Bureau d'Études Techniques Ingerop: French engineering consultancy with construction economics and project management practices. Overlaps with RHON'ECO on public building projects across French regions.

Direct peers

• Cabinet Bérim: French construction economics and project management consultancy with a multi-region footprint. Offers comparable économiste de la construction and OPC missions to public-sector and HLM clients.
• BTP Consultants: French national construction economics and management consulting firm offering exactly the same service mix (économie de la construction, OPC, AMO) to public and private clients. The most direct comparable to RHON'ECO in terms of service catalogue and target clients.
• Verdi Ingénierie: French construction project management and economics consultancy serving public, social housing, and private developers. Operates broadly across France with overlapping services in construction economics, AMO, and OPC.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 RHON'ECO