Since their founding in 2003 KuBuS supports the activities of the association of Mittelhessen e.V., initially as a supporting, then as a full member since 2013 after the establishment of the Regional Management Central Hesse GmbH. The association Mittelhessen have become the strong network of currently 150 members from industry, local authorities, private individuals and other institutions, with the district president Dr. Lars Wittek at the top. Since the first year KuBuS is booth partner of the Mittelhessen joint stand at Europe's largest real estate fair Expo Real in Munich.


The IHK Lahn dill (Chamber of Industry and Commerce) sees itself as a creator and impulse transmitter of the Lahn-Dill  region . Benchmark of all action is „the strengthening of the competitiveness of the economic region“ with the key objectives - strengthening of the social market economy challenges of the demographic competition and - strengthening of the innovation strength. KuBuS is member of the IHK since the foundation of KuBuS "red" GmbH in 2000. However, already in the middle of the nineties there were the narrowest points of contact: After a competitive success KuBuS realised the new chamber building at the Nebelsberg in Dillenburg.


Urbanicom a German association of Urban Development and Trade. The name urbanicom represents the combination of urbanity and commerce. At the annual meetings, leading urban planners, architects, merchants, and numerous representatives of other institutions meet. Urbanicom bundles all these forces for the promotion of urbanity, diversity of use and vitality of urban centers  and actively participates in the development of future-oriented concepts with the conviction: A living city requires the combination of all who work at a revitalization of city centers.


Lebenshilfe is a self-help association, a parent-, professional- and support organization for people with intellectual disabilities and their families. They accompany people with disabilities to participate  in the life of the society on an equal basis. Various offers are create  to help the integration of people with different disabilities, such as Early intervention centers, Integrative daycare, workshops for disabled persons, residences, offers in assisted living and in the category open aids. KuBuS is a member of Lebenshilfe Dillenburg eV since 18.03.2014.


The assignment of the AKH (hessian chamber of architects) is to campaign for the professional interests of  architects  at the political level and  to advise its members on all matters of professional practice and to monitor the statutory professional duties. This is done after the Hessian Act for Architects and Urban Planners while respecting the interests of the public. Furthermore, the Chamber delivers expert opinions and is committed to the building culture in terms of a high level of aesthetic, technical, economic, social and environmental construction quality under economically viable conditions. The authorisation to required documentations („big authorisation to present building documents“) entails basically the membership in the architect's chamber.


The HSG Wetzlar has become an important marketing factor and of course also a little pride of the old city of Goethe the city of optics on the river Lahn.  KuBuS supports HSG Wetzlar not only because of their personal ties to  handball: HSG has since become well established in the "strongest handball league in the world" and, most recently, for example, achieved a major coup with the obligation of the former world handball player Ivano Balic. Their home games take place in the Rittal-ARENA, which was initiated and developed by KuBuS  together with partners , in conjunction with FORUM WETZLAR on the site of the former freight depot.