A multilingual sister-site research hub
Universal Sisters, published at SisterSitesMap.com, helps readers understand which casino brands are connected and what those connections can mean. A familiar logo, similar website or shared game supplier does not by itself establish common ownership. The useful question is who operates each brand and what evidence supports the relationship.
The site has English sections for UK and New Zealand readers, alongside Finnish, Spanish and German sections. The available articles and archives differ between sections. Choosing a language does not establish where a casino accepts customers or which rules apply to a reader.
Start with the sister-site research for a particular brand, or browse the English operator-network directory for the wider group. The guides explain how to interpret ownership, payment and account information.
What makes the site different
The focus is the relationship between brands, rather than treating every casino comparison as a bonus list. Operator ownership, the company named in account terms and the holder of a particular licence can be different parts of that relationship. A source supporting one of those facts does not automatically establish the others.
Research notes and source links help show the scope of a page. Treat an unconfirmed detail as unresolved. A casino card or its position on a page is not proof of ownership, customer eligibility, withdrawal performance or safety. Cards may show other brands for comparison; they are not necessarily a list of the featured casino’s sisters.
How the site should be used
Check the sources and any dated review notes before relying on a claim. Company portfolios, operator terms and regulator records can change. Before opening an account, check the destination casino’s current country restrictions, account terms and applicable licence information directly.
Shared ownership does not mean identical bonuses, payment options or account rules. Do not use sister-site research to get around a self-exclusion or account restriction. Our responsible gambling page provides routes to support.
Read how we review for the criteria used to assess relationship claims. If you find an error, send a correction with the affected page and supporting source.