Samsung has announced a Partner Early Access Program for its SmartThings smart home platform, allowing companies such as Eve Systems and Aqara to start testing their Matter-compatible devices.

What’s notable here is this means there are Matter smart home devices, such as lights, locks, and sensors, out there being tested. While the Connectivity Standards Alliance (CSA) — the organization behind Matter — has already said there are devices going through its testing, it hasn’t revealed what and by whom.

Samsung SmartThings announced it’s working with Aeotec, Aqara, Eve Systems, Leedarson, Nanoleaf, Netatmo, Sengled, Wemo, WiZ, and Yale. Between them, these companies make lightbulbs, light switches, contact and motion sensors, and door locks, so we now have a clearer idea of which devices will be ready to go on day one when Matter launches this fall.