dealer registers

A dealer register is a government-maintained list of motor-trade businesses - dealers, repairers, traders - published by a member state and harvested into the EU's central catalogue. Each register is a national administrative product; the EU layer makes them findable in one search.

The cataloged EU Open Data Portal record for automotive parts and equipment describes the pattern: it 'aggregates metadata for thousands of motor-trade datasets harvested from national portals - dealer registers, turnover series, vehicle fleets, and retail sales statistics'. Scale is measured: '3,653 results for "automotive retail" and 16,431 for "motor trade dealer" at time of research'. The observed sources span 'Netherlands, Slovakia, Germany, Croatia, France, Belgium, United Kingdom legacy records, Poland', with observed underlying coverage of 2005-2023 for Dutch motor-trade turnover. Access is metadata-first: dataset-level records whose granularity 'depends entirely on each source', so the register you reach is the member state's own file.

Dealer registers are administrative by-products, and their buyer value depends on what each country decided to publish.

• Coverage is country-by-country, not EU-wide. The cataloged record observes eight sources; a pan-European dealer universe requires assembling national files, and some member states are simply absent.

• Register content varies with national law. One country's register may carry turnover while another lists only authorizations - the metadata record tells you which before you download.

• Legacy records age out. 'United Kingdom legacy records' are named among observed sources; post-Brexit updates are not guaranteed, so check each register's currency.

• Turnover series pair with registers for sizing. The same portal slice surfaces turnover series (observed 2005-2023 for the Dutch motor trade), letting dealer counts be weighted by market size rather than counted flat.

1. Search the aggregator, then go national. The cataloged portal returned 16,431 'motor trade dealer' results, but each is a metadata record pointing at a member-state source - plan to finish on the national portal.

1. Check which countries actually publish. Observed sources include Netherlands, Slovakia, Germany, Croatia, France, Belgium, UK legacy records and Poland; gaps mean your market map will be partial.

1. Compare register fields across countries before joining. Granularity 'depends entirely on each source', so dealer counts are not like-for-like without a field mapping.

1. Date-check legacy records. 'United Kingdom legacy records' are flagged in the cataloged coverage - confirm any pre-Brexit register is still maintained.

1. Pair registers with turnover series for weighting. The same portal slice carries turnover series with observed Dutch coverage 2005-2023, which turns a raw dealer count into a sized market.

Where to see it in context, and the metric that pairs with it:

• metadata-aggregator-portal — The portal design (data.europa.eu) that surfaces national dealer registers in one search.