If you mean, a single ready-made list that covers all languages for all groups of learners (e.g. young children, secondary learners, examination candidates, adult learners), the answer has to be ‘No’.    

The online catalogue of the CILT Resources Library can be used to generate a more narrowly focused or targeted list of materials, which would of course yield publishers’ details (where possible, details of the publisher’s website have been added to catalogue records, to allow further investigation).

In addition, a list of publishers who have produced materials to support developments in primary languages, a number of whom are active in supporting language learning and teaching in other sectors as well, is available on CILT’s Primary Languages website.

In the same way, some of the (third-party) suppliers listed on the Primary Languages site will include publisher details in their own catalogues or stocklists, and in individual cases even have a separate listing of the publishers whose materials they stock or distribute.