What Allodiagnostic does

Allodiagnostic (legal entity SAS ADX Groupe) is a French real estate diagnostics marketplace founded in 2008, operating from Vélizy-Villacoublay with administrative operations in Château-Gontier and approximately 40 agencies distributed across France. The company connects property owners, buyers, landlords, institutional property managers, and public-sector clients with a network of certified diagnosticians for legally mandated pre-sale and pre-rental assessments including DPE (energy performance), asbestos, lead (CREP), electricity, gas, Loi Carrez/Boutin surface measurements, ERP (environmental risks), termites, accessibility (PMR), and pre-work/pre-demolition asbestos inspections. Allodiagnostic operates a dual go-to-market: a product-led self-serve consumer marketplace (allodiagnostic.com) enabling free quotes, online ordering (with ERP available in 2 minutes), and appointment booking; and an enterprise field-sales arm (ADX Groupe / ADX Expertise) providing single-point-of-contact account management, multi-site coordination, grouped invoicing, and compliance tracking for large property portfolios. Revenue is generated via marketplace commissions on consumer transactions, professional services fees on enterprise engagements, and ADX Formation training programs for diagnostician certification (SS4, DPE, termites).

The technology platform combines the marketplace website, an internal extranet for technicians and pros (Calypso/partner portals), BIM/3D building digitization services, digital ERP ordering integrated with Preventimmo's urban-planning data, and an embedded real estate toolbox (Locamètre, Tensiomètre Locatif, Côte des Loyers, tenant matching) powered by LocService.fr. Allodiagnostic extends its distribution through an ecosystem of partnerships with French real estate and financial-services brands — PAP, Locat'me, Meilleurtaux, ENI, Covéa, MAIF, Empruntis, and IMMOJEUNE.COM — and has expanded into adjacent verticals such as indoor air quality via Ispira. The company employs 251–500 staff including approximately 100 diagnosticians, holds €6,990,495 in share capital, and self-positions as France's leading property diagnostics marketplace with 15+ years of operating history.

Name

Allodiagnostic

Legal name

SAS ADX Groupe

Website

https://www.allodiagnostic.com/

Company type

Private

Operating status

Operating

Headcount range

251–500 employees

Short description

Allodiagnostic (SAS ADX Groupe) operates France's leading online marketplace for mandatory real estate diagnostics, connecting property owners, enterprises, and public-sector clients with ~100 certified diagnosticians across 40 agencies for DPE, asbestos, lead, and related pre-sale/pre-rental compliance assessments.

Ownership category

akta.pro rank

Product category

Real Estate Property Diagnostic Services

NAICS

Offices of Real Estate Appraisers (53132), Real Estate Property Managers (53131)

SIC

Real Estate (6500)

akta.pro primary industry

Appraisal Review & Quality Assurance Services (BPAJAKAN)

akta.pro secondary industries

Real Estate Valuation & Appraisal (commercial/residential) (FSAEAHAJ), Real Estate Valuation & Appraisal Advisory (FSAEAJAI)

Keywords

• Property diagnostics
• Real estate diagnostics
• Diagnostic marketplace
• Building inspection
• Energy performance certification

Headquarters

HQ city

Château-gontier

HQ country

France

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Diagnostic Services Marketplace: Allodiagnostic acts as a marketplace connecting customers needing property diagnostics with a network of certified technicians. The platform earns commission or service fees on each transaction. Services cover all mandatory real estate diagnostics: DPE (Energy Performance), asbestos, lead, electricity, gas, Loi Carrez, Loi Boutin, and ERP.
2. Professional / Enterprise Diagnostic Services (Adx-Groupe): Adx-Groupe provides dedicated B2B diagnostic services to enterprises, property managers, public sector organizations, and large property portfolios. Services include project management, portfolio tracking, compliance management, and consolidated invoicing. Revenue is generated through service fees for professional diagnostic engagements, training, and ongoing compliance management.
3. Training Services: ADX Formation offers professional training for diagnosticians and industry professionals, covering certifications such as SS4 asbestos training, DPE, and other diagnostic disciplines.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

Allodiagnostic operates France's leading online marketplace for real estate property diagnostics, connecting individual property owners, buyers, sellers, and tenants with a nationwide network of certified diagnosticians to fulfill all mandatory diagnostics required for property sale, purchase, and rental transactions. Through its Adx-Groupe division, it delivers enterprise-level diagnostic portfolio management services to property managers, social housing operators (HLM), and real estate professionals. The company also offers professional training (ADX Formation), 3D digitization/BIM services, and a toolbox of digital tools for diagnosticians.

Product overview

Allodiagnostic operates as France's leading real estate diagnostic marketplace (1ère place de marché du diagnostic immobilier en France), comprising a platform for consumers and a professional division called ADX Groupe. The ecosystem includes mandatory property diagnostics (DPE, asbestos, lead, electricity, gas, Carrez/Boutin surfaces, ERP/ERNMT, termites, accessibility), specialized assessments (energy audits, pre-work/demolition asbestos inspections, DTA technical files), digital services (3D/BIM scanning, property scoring, digital diagnostics), laboratory testing kits (water analysis), and professional training. The company also provides embedded tools for the rental market (Locamètre, Tensiomètre Locatif, Cotes des Loyers) through a partnership with LocService.fr. With over 15 years of experience and national coverage through certified technicians and 40+ agencies, the platform serves both individual property owners and enterprise clients managing property portfolios.

Differentiator

Problem solved

Functional benefit

Brands

• ADX Groupe: B2B/professional services division of Allodiagnostic offering comprehensive real estate diagnostic solutions for businesses, local authorities, and institutional clients
• ADX Expertise

Products and services

• Allodiagnostic Marketplace Online B2C marketplace connecting individual property owners, buyers, sellers, and tenants with certified diagnosticians for all mandatory real estate diagnostics required for property transactions (sale, purchase, rental).
• ADX Groupe Enterprise Diagnostic Services B2B property diagnostic portfolio management services for professional clients including property managers, social housing operators (HLM), real estate agencies, and large institutional property owners managing multi-property portfolios.
• DPE - Diagnostic de Performance Énergétique Mandatory energy performance certification assessment evaluating the energy consumption and greenhouse gas emissions of a property for sale or rental transactions.
• Diagnostic Amiante Asbestos inspection and detection diagnostic for properties whose construction permit was issued before applicable regulations, required for sale and rental transactions.
• Diagnostic Plomb (CREP) Lead exposure risk assessment (Constat de Risque d'Exposition au Plomb) for properties built before 1949, required for sale and rental transactions.
• Diagnostic Électricité Electrical installation safety inspection for properties whose electrical installation is more than 15 years old, required for sale transactions.
• Diagnostic Gaz Gas installation safety inspection for properties whose gas installation is more than 15 years old, required for sale transactions.
• Diagnostic Loi Carrez Mandatory measurement of livable floor area for properties in condominiums (copropriété), required for sale transactions.
• Diagnostic Loi Boutin (Surface Habitable) Measurement of livable surface area for rental properties as required by the Loi Boutin.
• ERP - État des Risques et Pollutions State of Risks and Pollutions report covering environmental, natural, technological, and mining risks affecting the property, mandatory for sale and rental transactions.
• Diagnostic Termites Termite infestation state assessment required for properties located in termite-infested zones designated by prefectural decree, mandatory for sale transactions.
• Diagnostic État Parasitaire Assessment of parasite infestation state including wood-boring insects, larvae, and wood-decay fungi in the property.
• DTA - Dossier Technique Amiante Technical asbestos file (Dossier Technique Amiante) required for co-owners of buildings constructed before applicable regulations, used to track asbestos presence over time.
• Diagnostic Accessibilité Handicapé (PMR) Accessibility diagnostic for persons with reduced mobility (Personnes à Mobilité Réduite) required for ERP buildings receiving public.
• Audit Énergétique Comprehensive energy audit required for sale of energy-intensive properties (F and G rated) offering recommendations for energy performance improvement.
• Diagnostic Amiante Avant Travaux (DAAT/RAAT) Asbestos diagnostic required prior to renovation work on properties built before applicable regulations, identifying asbestos presence to protect workers and occupants.
• Diagnostic Amiante Avant Démolition (DAAD) Asbestos diagnostic required prior to demolition of properties built before applicable regulations, more comprehensive than the pre-renovation asbestos diagnostic.
• ADX Formation Professional training division offering certified diagnostic training programs for individuals seeking to become certified property diagnosticians.
• Numérisation 3D et BIM 3D digitization and Building Information Modeling (BIM) service for accurate property documentation and modeling, serving enterprise property portfolio management needs.
• Kit d'Analyse

Quantifiable outcome

• Hundreds of verified customer reviews on Trustpilot

Named customers1 record

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

Feature4 records

Partnerships

Seven partnerships are on record, tiered minor.

• PAP (Particulier à Particulier)minorChannel Partner/ Reseller/ DistributorPAP (Particulier à Particulier), France's leading private-to-private real estate classifieds platform, is featured as a trusted partner on Allodiagnostic's website. PAP enables individuals to sell or rent property without agents, and Allodiagnostic provides diagnostic services to PAP users as part of the transaction process.
• Locat'meminorChannel Partner/ Reseller/ DistributorLocat'me is a rental platform featured as a trusted partner on Allodiagnostic's website, targeting the rental market segment. The partnership enables Allodiagnostic to reach landlords and tenants requiring diagnostic services for rental transactions.
• MeilleurtauxminorChannel Partner/ Reseller/ DistributorMeilleurtaux is a major French mortgage comparison platform featured as a trusted partner on Allodiagnostic's website. The partnership targets property buyers who need mortgage financing and subsequently require diagnostic services as part of their transaction.
• ENI (École Nationale des Impôts)minorChannel Partner/ Reseller/ DistributorENI (École Nationale des Impôts) is listed as a trusted partner on Allodiagnostic's website. The partnership likely targets property owners interested in tax-related aspects of real estate transactions, where diagnostics may be relevant.
• CovéaminorChannel Partner/ Reseller/ DistributorCovéa is a major French insurance group (including MMA, MAAF, GMF brands) featured as a trusted partner on Allodiagnostic's website. The partnership connects property owners who need insurance and subsequently require diagnostic services.
• MAIFminorChannel Partner/ Reseller/ DistributorMAIF is a major French insurance company featured as a trusted partner on Allodiagnostic's website. Similar to Covéa, the partnership targets property owners needing insurance coverage and diagnostic services for their transactions.
• EmpruntisminorGTM or Marketing PartnerEmpruntis is a real estate credit broker partner enabling property owners to finance their real estate purchases. The 'Financer son crédit immo avec Empruntis' page on Allodiagnostic's site drives referrals between the two platforms, connecting buyers seeking financing with Allodiagnostic's diagnostic services.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Market position

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/allodiagnostic
• YouTubeyoutube.com/channel/UCzQ
• Facebookfacebook.com/allodiagnostic
• LinkedInlinkedin.com/company/allodiagnostic

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 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 Allodiagnostic