QIOS
QIOS SAS, operating as QUALITEL Expertise, is a French real estate technical expertise firm providing diagnostic, evaluation, audit, and advisory services across energy, building quality, environment, indoor air quality, and acoustics for social housing providers, developers, and property owners across France.
- Company typePrivate
- Founded1997
- HeadquartersParis, France
- Headcount101–250
- GTM typeB2B
- OfferingServices
What QIOS does
QIOS SAS, operating as QUALITEL Expertise, is a French real estate technical expertise and evaluation firm founded in 1997 and headquartered at 28 rue du Rocher in Paris's 8th arrondissement. The company was created by Association QUALITEL, a recognized nonprofit certification body, to support the development of certification activities in the French real estate sector. QIOS provides professional services across the real estate asset lifecycle, organized around six core offerings — Diagnostic, Evaluation-Contrôle-Mesure, Audit, Etudes & Recherches, Expertise Technique, and Assistance & Conseil — with a seventh biodiversity service line added via the Effinature partnership. Its expertise spans five technical domains: energy, building quality, environment, indoor air quality, and acoustics and vibration.
The firm's service portfolio targets three primary customer segments: social housing providers (bailleurs sociaux), property developers (promoteurs), and property owners and co-owners. Documented engagements include an Assistance à Maîtrise d'Ouvrage (AMO) mission on Nexity Immobilier's Village des Athlètes for the Paris 2024 Olympic Games covering 5 blocks in Île-de-France, a strategic heritage plan with Côte d'Azur Habitat covering 21,000 housing units across 90 municipalities, and bid analysis support for CDC Habitat's Résidence Quai Blanqui project of 188 units. As of June 2026, QIOS extended its environmental capability through a Biodiversity Partner agreement with Effinature.
QIOS distributes its services through direct client engagement supported by six regional offices across France — Paris, Vannes, Metz, Lyon, Aix-En-Provence/Montpellier, and Bordeaux/Toulouse — enabling nationwide on-site coverage. The firm operates a sales-led, project-based business model with custom professional services pricing on multi-year contracts, and pursues B2B demand generation through LinkedIn, YouTube, and content-driven thought leadership. As a wholly-controlled subsidiary of Association QUALITEL, QIOS benefits from its parent's certification heritage but discloses no external investors, funding history, or revenue figures.
QIOS firmographics
Firmographics- Name
- QIOS
- Legal name
- QIOS SAS
- Website
- https://qios.fr
- Company type
- Private
- Founded year
- 1997
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- QIOS SAS, operating as QUALITEL Expertise, is a French real estate technical expertise firm providing diagnostic, evaluation, audit, and advisory services across energy, building quality, environment, indoor air quality, and acoustics for social housing providers, developers, and property owners across France.
- Ownership category
- akta.pro rank
QIOS industry classification
Industry- Product category
- Real Estate Technical Consulting
- NAICS
- Management, Scientific, and Technical Consulting Services (5416), Environmental Consulting Services (54162), Other Scientific and Technical Consulting Services (54169)
- SIC
- Services-Engineering, Accounting, Research, Management (8700)
- akta.pro primary industry
- EHS Auditing, Inspections & Assurance (BPAHAJAG)
- akta.pro secondary industries
- Appraisal Review & Quality Assurance Services (BPAJAKAN), Air Quality & Emissions Management (BPAHAJAI)
Keywords
Where QIOS is headquartered
LocationHeadquarters
- HQ city
- Paris
- HQ country
- France
- HQ region
- Europe
Offices6 records
Markets served
QIOS business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Others
Revenue model
- Expertise and Evaluation Services: Professional services revenue generated through diagnostic, evaluation, control, measurement, audit, studies & research, and technical expertise missions throughout the lifecycle of real estate assets.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom professional services pricing |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels3 records
QIOS product offering
Product offeringCore offering
QIOS SAS (operating as QUALITEL Expertise) delivers technical expertise and evaluation services for real estate assets across their full lifecycle. The firm provides diagnostic, evaluation-control-measurement, audit, studies and research, technical expertise, and advisory/consulting missions covering energy, building quality, environment, indoor air quality, and acoustics/vibration. It also supports biodiversity integration through the Effinature certification programme.
Product overview
QUALITEL Expertise (QIOS SAS) is a real estate expertise and evaluation company offering a comprehensive portfolio of professional services. The company provides six core service offerings: Diagnostic, Evaluation-Contrôle-Mesure, Audit, Etudes & Recherches, Expertise Technique, and Assistance & Conseil. These services cover specialized domains including Energy, Building Quality, Environment, Indoor Air Quality, and Acoustics & Vibration. Additionally, QIOS offers biodiversity integration support for Effinature certification. The company operates as a subsidiary of Association QUALITEL and serves social landlords, developers, owners, and co-owners across France with regional offices in Paris, Vannes, Metz, Lyon, Aix-En-Provence/Montpellier, and Bordeaux/Toulouse.
Differentiator
Problem solved
Functional benefit
Products and services
- Diagnostic
- Evaluation-Contrôle-Mesure
- Audit
- Etudes & Recherches
- Expertise Technique
- Assistance & Conseil
- Accompagnement Effinature
Quantifiable outcome
- Biodiversity integration support for real estate projects through Effinature certification partnership
Companies that use QIOS
Customer profileNamed customers3 records
Segments3 records
Ideal customer profiles3 records
QIOS technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
QIOS partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered core and flagship.
- Association QUALITELcoreQUALITEL Expertise (QIOS SAS) was created by Association QUALITEL as part of the significant development of certification activities. Association QUALITEL remains the parent organization and strategic partner, with QUALITEL Expertise operating as a subsidiary.
- EffinatureflagshipQUALITEL Expertise became a Biodiversity Partner to support real estate projects in obtaining Effinature certification. This partnership enables the company to offer strategic biodiversity integration services as part of its environmental expertise offering.
Scale indicators3 records
Recent moves6 records
Expansion highlights3 records
QIOS competitors and assessment
Company assessmentDirect peers
- ACCEO: French building technical consultancy covering energy performance, audits, and real estate diagnostics. Directly comparable as a mid-sized French firm offering technical expertise, audits, and advisory to real estate stakeholders.
- Ginger CEBTP: French construction and geotechnical testing, inspection, and engineering firm. Comparable in providing measurement, diagnostics, and technical expertise services for built-environment assets and real estate projects.
- Cerqual: French certification body focused on social housing (HLM) quality, NF Habitat, and environmental labeling. Closely comparable given QIOS's strong social-housing customer base and overlapping certification expertise.
- SOCOTEC: French leader in testing, inspection, and certification (TIC) for buildings, real estate, and infrastructure. Directly comparable as it provides building diagnostics, technical inspections, audits, and certification support to the same social housing, developer, and property owner customers in France.
- Apave: French technical inspection and certification group active in building, energy, and environmental compliance. Competes in the same diagnostic, audit, and technical expertise market for real estate and construction assets in France.
Emerging players
- Citae: French sustainability and real estate consultancy focused on environmental performance, energy efficiency, and ESG for property developers and owners. Overlaps with QIOS's environmental, energy, and biodiversity service lines.
- CSTB (Centre Scientifique et Technique du Bâtiment): French building science and technical expertise center providing research, evaluation, and advisory on building performance. Comparable as a French specialist in technical building expertise intersecting QIOS's quality and energy domains.
Broad incumbents
- SGS: Global testing, inspection, and certification group offering building, environmental, and real estate assurance services. A broad incumbent that overlaps with QIOS's audit and evaluation work at scale.
- Bureau Veritas: Global TIC incumbent with a strong French presence in building, environmental, and energy certification. Competes broadly across QIOS's audit, diagnostic, and certification offerings as part of a much wider portfolio.
- DEKRA: Global TIC and certification company with European operations in building safety, energy, and environmental services. Provides similar audit and inspection capabilities as part of a broader, multinational portfolio.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights6 records
Customer concentration
QIOS social profiles
Digital presenceQIOS financial estimates
Financial estimateRevenue estimate
Valuation estimate
QIOS leadership team
Management profileNumber of profiles
QIOS funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
QIOS M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about QIOS
What does QIOS do?
QIOS SAS (operating as QUALITEL Expertise) delivers technical expertise and evaluation services for real estate assets across their full lifecycle. The firm provides diagnostic, evaluation-control-measurement, audit, studies and research, technical expertise, and advisory/consulting missions covering energy, building quality, environment, indoor air quality, and acoustics/vibration. It also supports biodiversity integration through the Effinature certification programme.
Is QIOS a public or private company?
QIOS is a private company. It is classified as nonprofit foundation owned and is currently operating.
When was QIOS founded?
QIOS was founded in 1997. It employs 101 to 250 people.
Where is QIOS based?
QIOS is headquartered in Paris, France, in the Europe region.
How does QIOS make money?
One revenue line is on record: expertise and Evaluation Services.
Who are QIOS's main competitors?
Direct peers on record are ACCEO, Ginger CEBTP, Cerqual, SOCOTEC and Apave. Emerging players are Citae and CSTB (Centre Scientifique et Technique du Bâtiment). Broad incumbents are SGS, Bureau Veritas and DEKRA.
Does QIOS have an API?
No public API is recorded for QIOS.
What industry is QIOS in?
QIOS's product category is Real Estate Technical Consulting. Its primary akta.pro industry code is BPAHAJAG, EHS Auditing, Inspections & Assurance, with a secondary code of BPAJAKAN, Appraisal Review & Quality Assurance Services. Its NAICS code is 5416 and its SIC code is 8700.