Start with suppliers whose public offering matches publisher use, then qualify the exact rights and audience coverage. The following is an evidence-led shortlist—not a ranking of verified US demo-licensing partners.
| Supplier or route | What public evidence establishes | What remains to be established before purchase |
|---|---|---|
| First Look Games | Markets game assets, demo links and a Demo Game Server to publishers; its publisher EULA describes promotional-material and review use. (firstlookgames.com) | Your approved sites, exact playable titles, US scope, service availability and applicable restrictions |
| Slots Launch | Explicitly offers publisher demo embeds, an API and WordPress integration. (slotslaunch.com) | Applicable content permissions, upstream authority, territorial coverage and any negotiated support terms |
| Direct studio relationships | Pragmatic Play describes affiliate partnerships; studio public terms reserve content rights. (pragmaticplay.com) | A publisher-specific grant, supported endpoints, title coverage and commercial conditions |
| EveryMatrix Aggregation, formerly SlotMatrix | EveryMatrix announced the SlotMatrix name change on 30 July 2026 and describes an operator-focused aggregation offering. (everymatrix.com) | Whether it will contract for independent, demo-only publisher use, without assuming operator terms apply |
| SOFTSWISS Game Aggregator | Describes itself as an authorised reseller bringing providers’ content to iGaming operators. (softswiss.com) | Independent publisher eligibility, demo-only rights, US scope and commercial proportionality |
| MarketJS | Publishes an HTML5 distribution-licensing model and offers slot-style games. (marketjs.com) | Whether its original games meet the editorial need; do not assume they replace recognisable studio titles |
| SlotCatalog data services | A public commercial PDF describes API data subscriptions and restrictions on affiliate publication. (slotcatalog.com) | Current permitted data use; do not treat a metadata feed as a playable-content licence |
For a small review publisher, our recommended first comparison is publisher-oriented distribution versus direct studio access. Add operator-oriented aggregators when the requirement and budget justify asking whether a separate publisher arrangement is available.
No named supplier’s public material reviewed here establishes unrestricted permission for every independent website to serve every listed title throughout the United States.