Prediction-market directory
Help build a useful directory
A shared reference for the prediction-market ecosystem: useful profiles, clear sources and a record of what changed.
List, claim and correct for free
Submit a business or project with an original description and public source links. The desk checks relevance, duplicate listings and the evidence before publication. Anyone can suggest a factual correction. Claiming is for people authorised to maintain a particular company or product profile.
For a dedicated domain, a DNS TXT challenge confirms control of that domain. Shared hosts and repository pages require evidence about the specific project. The desk also reviews affiliation before approving a claim. A claim does not establish regulatory permission, financial soundness or a passed service assessment. Claims are dated and expire after one year unless reviewed again.
Published details have a source and history
Company and contributor details are labelled separately from retained website metadata and historical catalogue statements. Approved updates show their publication date and contributor credit. Earlier source observations remain available. Describe pricing conditions and limitations accurately; leave information you cannot establish blank.
By submitting written material, you confirm that you can contribute it under CC BY 4.0. The licence applies to your publishable contribution, with its attribution, rather than your private contact information or access key. It grants no rights to somebody else's logo, source implementation, venue feed or confidential data.
Private access and contact information
Your name, work email, private notes and access credentials are held privately to manage the request and resolve affiliation or correction questions. The organisation or contributor credit you enter may appear on published contributions. We do not publish your email or add you to a marketing list through this form.
Your browser uses an essential, secure sign-in cookie for up to 30 days. Save the private access key to return from another browser. Keys are stored as hashes, are valid for up to a year and can be revoked. Request recovery or deletion through the contact details in the privacy notice. Public source records and publication history may need to remain as part of the directory's evidence record.
Send public evidence links only. Do not upload identity documents, customer records or credentials. Email addresses supplied here are contact details; entering one alone does not prove company affiliation.
Independent reviews
A paid transparency review has an agreed scope, evidence and report. Basic listing, corrections and claiming remain free. Paying does not buy a favourable finding or change directory order. Public assessment marks are not currently issued.