Adhoco AG — 00:18:E5 (MA-L)

Adhoco AG was a Swiss building-automation company that held a single MA-L OUI block, 00:18:E5, registered to the company at Technopark Winterthur, canton Zurich (CH-8406). The hardware behind this allocation was not general networking gear but wireless building-automation equipment: ZigBee-based sensors, actuators, and controllers for lighting, heating, shading, and ventilation in commercial and residential buildings. A representative certified product was the adhoco.S1, a combined light on/off actuator and light-switch sensor built to fit behind a standard 230 VAC light switch; the company also shipped the adhoco.H1 ZigBee controller and adopted EnOcean energy-harvesting radio from 2015. The corporate trail is important context for anyone classifying these MACs today. The legal entity (CHE-110.047.593, later based in Brugg) was renamed Baumgartner Industries AG in January 2022, and the original Adhoco product line appears to have lapsed before that, with community reports of bankruptcy and no spare parts circa 2020. Deployed Adhoco devices therefore sit unpatched: a 2013 academic wardriving paper showed the adhoco.H1 controller exposing a Jetty HTTP service on port 8080 over a Linux ARMv4 kernel, discoverable by nmap. Legacy Adhoco ZigBee nodes should be treated as unsupported IoT endpoints and isolated accordingly. IEEE publishes no registration date for this MA-L block, so any "date registered" seen on third-party lookup tools is a database artifact, not an IEEE fact.

IEEE assignment

00:18:E5 → Adhoco AG, MA-L block [Confirmed] — IEEE the IEEE MA-L registry

Registry / block size

MA-L (24-bit OUI; single block ≈16.8M addresses) [Confirmed] — IEEE the IEEE MA-L registry, https://maclookup.app/vendors/adhoco-ag. NOTE: IEEE's public OUI data publishes NO assignment/registration date; maclookup.app's "01 July 2006" registration date and "17 November 2015" last-update are third-party database artifacts, not IEEE facts.

HQ / country

Technopark Winterthur, Zürich, CH-8406, Switzerland (registry address; entity later based in Brugg) [Confirmed] — IEEE the IEEE MA-L registry, https://ch.kompass.com/c/adhoco-ag/ch158621/

Company status

defunct under the Adhoco brand; legal entity renamed Baumgartner Industries AG on 21 January 2022 (CHE-110.047.593). Community reports of bankruptcy / no spare parts circa 2020 [Confirmed rename; Likely brand discontinuation] — https://www.northdata.com/Adhoco+AG,+Brugg/CHE-110.047.593, https://baumgartner-industries.ch/, https://zigbee2mqtt.discourse.group/t/adding-older-zigbee-adhoco-devices/1037

Device types

wireless ZigBee building-automation sensors, actuators, and controllers for lighting, heating, shading, and ventilation [Confirmed] — https://www.cbinsights.com/company/adhoco, https://www.prnewswire.com/news-releases/11-zigbee-home-automation-products-certified-to-meet-growing-needs-of-home-automation-market-82677922.html

Notable products

adhoco.S1 (ZigBee-certified light on/off actuator + light-switch sensor, 230 VAC, behind-switch form factor); adhoco.H1 ZigBee controller; EnOcean energy-harvesting radio adopted from 2015 [Confirmed] — https://www.prnewswire.com/news-releases/11-zigbee-home-automation-products-certified-to-meet-growing-needs-of-home-automation-market-82677922.html, https://zigbee2mqtt.discourse.group/t/adding-older-zigbee-adhoco-devices/1037

Successor / website

original adhoco.com domain shows an invalid TLS cert as of June 2026 (possibly abandoned); successor entity site is baumgartner-industries.ch, which retains the bms.adhoco.ch BMS platform URL [Likely] — https://baumgartner-industries.ch/

Security note

a 2013 paper demonstrated wardriving/fingerprinting of Adhoco ZigBee installations — adhoco.H1 exposed Jetty httpd on port 8080 over a Linux 2.6 ARMv4 kernel, nmap-discoverable. With the company defunct, deployed devices receive no firmware/security updates; treat as unpatched IoT and isolate.

[Likely] — https://www.researchgate.net/publication/235702099_How_to_own_a_Building_Wardriving_gegen_die_Gebaude-Automation

Allocated date

Unknown — IEEE publishes no MA-L assignment dates; not present in the IEEE MA-M registry or the IEEE MA-S registry [Confirmed null] — the IEEE MA-L registry

Analyst note

00:18:E5 reliably identifies genuine Adhoco hardware (single block, no MAC randomization on this device class), but that hardware is end-of-life building-automation gear from a defunct vendor — flag matches as unsupported IoT for asset-inventory and risk purposes.