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

Label holders

The organisations labelled by OIMAP: distribution, follow-up, suspensions and withdrawals.

Updated : October 28, 2026· 3 min read

A public and living list

Plaque (1500s–1600s)
Plaque (1500s–1600s)

Label holders appear in a public directory updated with each decision. Each is identified by name, city, country, type of activity, date of award and expiry date.

The list allows a buyer or seller to check, before dealing, that the organisation is labelled and that its label is valid. It also flags suspensions and withdrawals.

At the end of 2024, the label had 412 holders in 51 States.

  • 412 holders
  • 51 States
  • Directory
  • Follow-up

The holders in figures

412organisations
51States
7withdrawals since 2021
93%of renewals

Source: OIMAP Observatory, 2024.

Distribution by region

Europe168
Americas104
Asia-Pacific76
Africa43
Middle East21

412 organisations. Source: label directory (indicative).

Distribution by type of organisation

Galleries168
Auction houses96
Dealers and advisers87
Collectors61

Source: label directory (indicative).

Medal Depicting Gian Lorenzo Bernini (1598-1680) from the Illustrious Men of the Kingdom of the Two Sicilies (obverse), V. Catenacci (1830–34)
Medal Depicting Gian Lorenzo Bernini (1598-1680) from the Illustrious Men of the Kingdom of the Two Sicilies (obverse), V. Catenacci (1830–34)
Brooch (c. 1890–1910)
Brooch (c. 1890–1910)
Coin of Eukratides I (170–145 BCE)
Coin of Eukratides I (170–145 BCE)

What the directory contains

Each entry gives the organisation's name, city and country, activity, specialties, date of award of the label and expiry date. Entries of suspended organisations or those being withdrawn carry a visible mention.

No financial data is published. Audit reports remain confidential; only a summary of the decision is public.

The statuses of a holder

The four statuses
StatusMeaningPublic mention
ActiveLabel in forceYes
With reservationLabel awarded with action planYes, with date of check
SuspendedLabel suspended during an investigationYes, with general reason
WithdrawnLabel permanently withdrawnYes, for two years

The follow-up of a holder

  1. Annual report

    The holder submits a report on application of the criteria.

  2. Random check

    Each year, 10% of holders are checked.

  3. Reporting

    Any reported breach is investigated.

  4. Decision

    Maintenance, suspension or withdrawal.

  5. Renewal

    At the end of three years.

A withdrawn label is public

Active holder or holder with reservation

Carnet (1863–1865)

Active

Compliant
  • Full label
  • No action plan
  • Standard annual check

General case.

Tetradrachm: Head of Alexander (obverse); Athena (reverse) (297–281 BCE)

With reservation

Gaps to correct
  • Six-month action plan
  • Targeted check
  • Public mention of the reservation

Transitional situation.

Holders over the years

  1. 100

    First labelled organisations.

  2. 210

    Extension to dealers.

  3. 330

    Opening to collectors.

  4. 412

    Presence in 51 States.

Plaque (c. 500–200 BCE)
Plaque (c. 500–200 BCE)
Coin of Demetrios, I (reverse) (200–190 BCE)
Coin of Demetrios, I (reverse) (200–190 BCE)
Seal Color Box (1662–1722)
Seal Color Box (1662–1722)

Case study: a suspension

A breach reported

Situation

A customer reports that a labelled gallery sold a work under a BIOP alert.

Actions
  1. OIMAP opens an adversarial investigation.
  2. The label is suspended during the inquiry.
  3. The breach is established: the label is withdrawn.
Outcome

The gallery leaves the directory and appears for two years in the list of withdrawals.

Check a holder before dealing

Before a major transaction, consult the directory: does the organisation appear in it, is its label in force, does it carry a mention of reservation or suspension? This check takes less than a minute and usefully complements that of the work's certificate.

If you notice that an organisation claims the label without appearing in the directory, report it: improper use of the logo is an offence liable to sanctions, and the Certification Department follows such cases closely.

A principle of loyalty

Tetradrachm: Owl, Crescent Moon, Olive Branch (reverse) (480–449 BCE)
« A label that is never withdrawn is worthless. »
Secretary-General's Office, OIMAP

Vocabulary of holders

Holder
Organisation holding the label.
Suspension
Provisional interruption of the effects of the label.
Retrieval
Final end of the label.
Annual report
Report on application of the criteria.

Frequently asked questions

Where can I consult the list of holders?

In the directory of auction houses for houses, and in the label directory.

Can a sanctioned holder apply again for the label?

Yes, after two years and depending on seriousness.

How do I report a breach?

Through the contact form.

Are all holders audited every year?

No, 10% are, each year, at random.

Contacts

A Palace with an Arched Bridge (A Roman Villa), Hubert Robert (1760)
A Palace with an Arched Bridge (A Roman Villa), Hubert Robert (1760)
Certification DepartmentParis — Headquarters+33 1 00 00 00 00certification@oimap.exampleMonday to Friday, 9 a.m. – 5 p.m.

Become a holder

Ornamental Brooch (c. 100–300 CE)

Find out how to apply.

See the application
Image credits (16)
▲