Since 2012, the LUMIUS group has been transformed into a holding structure that includes five companies: Lumius Holding, spol. s r. o., Lumius, spol. s r. o., H – therma, a.s. and Lumius Slovakia, s. r. o.
| Lumius, spol. s r. o. Deliveries of power and gas to end customers in the Czech Republic and other services related to the operation of energetic equipment. | H – therma, a.s. Holds licences for the production and distribution of thermal as well as electrical power. Operates the central heat source in Hrádek nad Nisou, produces power using co-generation units. | Lumius Slovakia, s. r. o. Power and gas deliveries for end users in the region of Slovakia. |

