Observe · Regulate · Protect — since 2007. 19th OIMAP General Assembly: Singapore, 10–12 June 2026. Programme
About

Private sector partners

Auction houses, companies and technical service providers that cooperate with OIMAP, in compliance with strict rules of independence.

Updated : October 28, 2026· 4 min read

The private sector, a market player

The Dance at the Court of Herod, Israhel van Meckenem (c. 1500)
The Dance at the Court of Herod, Israhel van Meckenem (c. 1500)

Auction houses, galleries, insurers, carriers, laboratories and technology companies keep the art market alive. Their cooperation is valuable, provided it is properly regulated.

This page presents the forms of cooperation with the private sector and the rules that guarantee the Organisation's independence. Approved auction houses are presented in the Auction houses section.

  • Private sector
  • Auction houses
  • Independence

Private sector partners in figures

4Types of partner companies
0Influence on an individual decision
€40,000Competitive tendering threshold for contracts (indicative)
30 dConformity label processing time

Source: OIMAP General Secretariat.

Breakdown

Auction housesApproval and traceability
LaboratoriesTechnical analyses
Insurers and carriersGood practices
Digital companiesCertification tools

Indicative breakdown of private partners.

Why cooperate with companies

Companies are the first to observe market developments and to handle works. Their data and tools are useful for improving traceability. In return, they benefit from a clear framework that secures transactions.

Cooperation covers specific topics: staff training, exchanges on fraud risks, deployment of verification tools, dissemination of good practices.

The Doge's Palace, Venice, Richard Parkes Bonington (1826)
The Doge's Palace, Venice, Richard Parkes Bonington (1826)
Edge of the Woods Near L'Hermitage, Pontoise, Camille Pissarro (1879)
Edge of the Woods Near L'Hermitage, Pontoise, Camille Pissarro (1879)
Capriccio: A Palace with a Courtyard by the Lagoon, Antonio Canaletto (c. 1750–55)
Capriccio: A Palace with a Courtyard by the Lagoon, Antonio Canaletto (c. 1750–55)

Auction houses

Approved auction houses undertake to verify the provenance of lots, to consult BIOP alerts before each sale and to keep documents for ten years (indicative). They are subject to inspections and may lose their approval in the event of a breach.

The procedure is presented in the Sale approval section, and the conformity label distinguishes the most rigorous establishments.

Laboratories and technical service providers

Laboratories carry out materials analyses, dating and imaging examinations. They collaborate with the Organisation under the list of partner laboratories, which specifies their areas of expertise.

Their reports are independent. OIMAP regularly checks the quality of their methods and may suspend a collaboration if anomalies are found.

Insurers, carriers and digital

Insurers and specialist carriers exchange with the Organisation on the risks of theft and damage, as well as on the insurance value stated in conservation reports. Digital companies contribute to the digital certification tools.

All remain subject to the Organisation's confidentiality rules. No personal data of clients is transmitted without a legal basis.

Types of private partners

Four types of partners
TypeContributionMain rule
Auction housesTraceability of lotsConsultation of BIOP before sale
LaboratoriesScientific analysesIndependence of reports
Insurers, carriersGood security practicesData confidentiality
Digital companiesCertification toolsSecurity and data protection

Milestones

  1. First private agreements

    Cooperation with auction houses (indicative).

  2. Conformity label

    Distinction of rigorous establishments.

  3. Digital tools

    First verification solutions (indicative).

  4. Independence review

    Review of procedures by the audit committee (indicative).

No commercial advantage

Coronation of the Virgin, Christoffel Jegher (1632–36)
Coronation of the Virgin, Christoffel Jegher (1632–36)
Sketch of the Labyrinth of the Villa Pisani, Francesco Guardi (1773–1778(?))
Sketch of the Labyrinth of the Villa Pisani, Francesco Guardi (1773–1778(?))
The Four Seasons, Kano Tan’yū (1668)
The Four Seasons, Kano Tan’yū (1668)

Partner or service provider

The Old Market, Cleveland, Frank Wilcox (1920)

Partner

Cooperation
  • Common objectives
  • Cooperation agreement
  • No remuneration by the Organisation

For shared actions.

The Victory Banquet: from Battle Scenes of the Quelling of Rebellions in the Western Regions, with Imperial Poems (c. 1765–74; poem dated 1760)

Service provider

Public procurement
  • Competitive tendering
  • Supply contract
  • Subject to the threshold and notices

For the Organisation's purchases.

Becoming a private partner

  1. Letter of intent

    Objectives and means.

  2. Verification

    Reputation, compliance.

  3. Risk review

    Conflicts of interest.

  4. Draft agreement

    Rights and obligations.

  5. Validation

    Competent bodies.

  6. Follow-up

    Annual review.

A private partner undertakes to

An auctioneer

Eighteen Views of Rome: The Piazza Farnese (recto), Lievin Cruyl (1664)
« Checking alerts before each sale has become a reflex. It protects our clients and our reputation. »
Nathalie Duriez, auctioneer (example)

Vocabulary

Competitive tendering
Procedure for comparing several offers.
Sale approval
Authorisation issued to an auction house.
Trade secret
Protected commercial information.
Insurance value
Value adopted to cover a work.

Independence and transparency

A partnership with a company gives no advantage in a certification, arbitration or approval procedure. Decisions are taken according to public criteria, without regard to any commercial link. The Organisation's contracts are subject to competitive tendering above a threshold of €40,000 (indicative).

Agreements are published subject to legitimate trade secrets, and procurement notices appear in the Public procurement section.

Frequently Asked Questions

Is a partner favoured in a certification?

No, decisions follow public criteria.

Are the agreements public?

Subject to legitimate trade secrets.

How can I become a service provider?
Where can I find approved auction houses?

Useful Documents

Contacts

Châteauvieux-sur-Suran, Antoine-Claude Ponthus-Cinier (1848)
Châteauvieux-sur-Suran, Antoine-Claude Ponthus-Cinier (1848)
General SecretariatParis — Headquarters+33 1 00 00 00 00secretariat@oimap.exampleMonday to Friday, 9 a.m. – 5 p.m.

Back to the section

Portrait of a Man, Gustave Caillebotte (1880)

All partner families.

Partners
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