Matter is targeted exclusively at residential and small-commercial deployments: its consumer-grade commissioning experience and device catalogue are not suited to the tertiary or industrial requirements where KNX, BACnet and Modbus remain the leaders.

Matter's scope is unambiguously consumer: the certified device catalogue comes from Philips Hue, IKEA, Amazon, Apple and similar brands, the setup flow assumes a single end user with no tools and no formal training, and typical installations scale to about 50 to 100 devices. Tertiary buildings routinely need 1000+ data points, fine-grained access control, professional monitoring and supervision, change-management audit trails and long-term documentation, which is where KNX, BACnet and Modbus still dominate. Matter and KNX are therefore complementary rather than direct competitors: Matter brings the consumer ecosystem and voice integration into the home, KNX brings the engineering depth needed for offices, hotels and public buildings.

Do not pitch Matter as a KNX replacement on a tertiary project: position it as the consumer-facing bridge that complements the KNX backbone, and price the bridge accordingly.