Contact & corrections
How to reach Ad Agency Index, and where corrections to record data belong.
Contact
The site contact address is contact@adagencyindex.com.
What this site is
Ad Agency Index is a structured directory of integrated marketing communications agencies and a small library of reference material around them.
Corrections
This is a static reference, not a live customer-service operation. Corrections to public-record information should be raised with the underlying source so the change propagates broadly; the directory is rebuilt from those sources on a recurring schedule.
What this site is not
Ad Agency Index is not a marketplace, not a leads service, not a ranking, and not a pay-for-placement directory. Inclusion is editorial.
Where the data comes from
Source used in this build: Wikidata SPARQL endpoint (https://query.wikidata.org/sparql).
The seed script is intended to be re-run periodically against the same source. When it is re-run, profiles can change — agencies can be added, retired, recategorised, or have their founding year corrected — to reflect updates in the underlying source.
Background on the sources and the choices made when they disagree is on the methodology page.