What FIDI does

FIDI — legally the Fédération interprofessionnelle du diagnostic immobilier and now operating as L'Alliance du Diagnostic Immobilier following the merger of FIDI and CDI — is a French professional federation (syndicat professionnel représentatif under the Loi de 1884) that represents property diagnosticians across metropolitan France and the DOM-TOM. It serves three principal user groups: certified diagnostic professionals (solos, mid-sized companies, and national networks) who join as members; property owners, buyers, sellers, and renters who use the public member directory to find certified diagnosticians; and prescribers such as notaries and real estate agents who rely on the directory for referral and legal compliance. As of the most recent disclosures, the alliance represents more than 500 member companies and over 1,000 diagnosticians (the website also cites 1,500+ colleagues), and operates from a Paris headquarters with regional delegates across France.

The federation's underlying "product" is not a software platform but a bundle of professional services: statutory and specialized property diagnostics (Amiante, Electricité, Gaz, DPE, Plomb, Termites, ERP, Loi Carrez, Mérule, Radon, CIL, Contrôle des assainissements, energy audits, amiante avant travaux), an exclusive professional liability insurance (RCP) contract negotiated with partner LSN at group rates, a searchable national member directory, working groups, training webinars on DPE methodology and KPIs, and representation before French regulators. Technology is limited to a content website, member portal ("Espace membre"), social channels (LinkedIn, Facebook), and directory infrastructure — no app, API, SDK, or proprietary AI tooling is disclosed.

FIDI's revenue model is subscription / membership-fee-based, paid by member companies and diagnosticians seeking affiliation, advocacy, insurance access, and directory visibility. Pricing is not publicly disclosed; membership is administered via an adhesion bulletin. The go-to-market is community-led: the federation grows by attracting individual professionals and firms through advocacy, exclusive insurance, networking, professional development, and visibility in the official directory, while property-side stakeholders are reached through content marketing, press releases, industry events (e.g., RVDI 2026, Assises nationales), and SEO on the member directory.

Name

FIDI

Legal name

Fédération interprofessionnelle du diagnostic immobilier

Website

https://lafidi.fr

Company type

Private

Founded year

2004

Operating status

Operating

Headcount range

51–100 employees

Short description

FIDI, now operating as L'Alliance du Diagnostic Immobilier, is the principal French professional federation representing certified property diagnosticians, offering members advocacy, exclusive liability insurance via LSN, training, and a nationwide certified-member directory.

Ownership category

akta.pro rank

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales

Revenue model

1. Membership fees: Revenue generated from membership fees paid by diagnostic professionals and companies seeking affiliation with the Alliance du Diagnostic Immobilier. The federation represents diagnosticians from solos to medium businesses to networks.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels7 records

Core offering

FIDI, operating as L'Alliance du Diagnostic Immobilier, is a French professional federation/union representing real estate diagnosticians. It provides professional representation, advocacy, a directory of certified diagnostic professionals, negotiated professional liability insurance, and training, while member companies deliver mandatory property diagnostic services.

Product overview

L'Alliance du Diagnostic Immobilier (formerly FIDI and CDI) is a professional federation representing over 500 companies and 1,000+ diagnosticians in France. The organization provides a comprehensive suite of real estate diagnostic services and professional support offerings. Core services include mandatory property diagnostics (Amiante, Electricité, Gaz, DPE, Plomb, Termites, ERP) as well as specialized services such as asbestos sampling before renovation work (amiante avant travaux), energy audits, and property condition assessments. The federation also offers exclusive professional liability insurance (RCP) through its LSN partnership, maintains a searchable member directory, and provides educational webinars. The services are delivered by certified professionals who must meet regulatory certification requirements.

Differentiator

Problem solved

Functional benefit

Products and services

• Diagnostics Immobiliers Professional real estate diagnostic services including Amiante (asbestos), Electricité (electrical), Gaz (gas), DPE (energy performance), Plomb (lead), Termites, and ERP (environmental risk) required for property transactions and renovations in France, delivered by certified member diagnosticians.
• Amiante et HAP (Hydrocarbures Aromatiques Polycycliques) Specialized asbestos and HAP diagnostic services including sampling (carottages) and pre-work asbestos detection (amiante avant travaux) for renovation projects.
• Audit Énergétique Energy audit services for buildings as part of France's energy transition requirements.
• Contrôle Immobilier Property control diagnostics performed during rental situations, including rental condition assessments (état des lieux locatif) and housing decency diagnostics.
• Assurance RCP (Responsabilité Civile Professionnelle) Professional liability insurance offered exclusively through the LSN partnership, providing comprehensive coverage adapted for diagnostic professionals at negotiated group rates.
• Annuaire des Adhérents Official directory of certified diagnostic members of L'Alliance du Diagnostic Immobilier, searchable by region across France including DOM-TOM.
• Loi Carrez Mandatory surface area measurement for co-ownership properties under French law.
• Calcul des Millièmes de Copropriété Calculation of thousandths of co-ownership shares for property management purposes.
• Diagnostic Mérule Wet rot (mérule) detection service for properties at risk.
• Diagnostic Radon Radon gas detection service for buildings in affected areas.
• CIL (Constat de Risque d'Exposition au Plomb) Lead exposure risk assessment for pre-1949 buildings.
• Contrôle des Assainissements Sanitation system inspection and control services.
• Webinaires et Formations Webinars and training on topics including DPE methodology and KPIs for the professional development of members.

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• LSN (L SN)coreStrategic or Co-development PartnerExclusive partnership with LSN to offer the profession a comprehensive, adapted and high-performance professional liability insurance (RCP - Responsabilité Civile Professionnelle) contract at a negotiated group rate. This is a key member benefit.

Scale indicators3 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Agenda Diagnostics: Leading French real estate diagnostic franchise network performing the full suite of mandatory property diagnostics. Directly comparable as a major organized network of diagnosticians serving the same regulatory-mandated service lines the Alliance represents.
• AC Environnement: One of the largest French real estate diagnostic companies, providing amiante, plomb, DPE, and related inspections. Comparable as a major operator in the same property diagnostics market whose professionals are potential Alliance members and whose services directly overlap with the member offerings the federation represents.

Broad incumbents

• Apave: Major French TIC group providing building control, diagnostics, and regulatory compliance services. Comparable as an established incumbent with overlapping building diagnostics, conformity assessment, and technical inspection capabilities serving similar regulatory-driven demand.
• Bureau Veritas: Global testing, inspection, and certification (TIC) company with building and real estate diagnostic service lines. Comparable as a much larger incumbent operating in adjacent property/building inspection services with overlapping technical certifications and target clients.
• SGS: Global TIC company with building and environmental diagnostic offerings including asbestos, radon, and energy performance services. Comparable as a large incumbent with overlapping property-related inspection, testing, and certification capabilities.
• UNIS (Union des Syndicats de l'Immobilier): French union of real estate syndic and property management professionals. Comparable as a French professional union structure (syndicat) serving an adjacent real estate professional segment, sharing similar advocacy, training, and member-service models.
• FNAIM (Fédération Nationale de l'Immobilier): France's largest real estate professional federation, representing agents, brokers, and property professionals. Comparable as a larger, more established professional federation in the French real estate ecosystem that interacts with the Alliance's diagnostic members as referral partners.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/federationfidi
• LinkedInlinkedin.com/company/fidi-fédération-interprofessionnelle-du-diagnostic-immobilier

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 FIDI