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Achieving more together.

The Österreichischer Kommunal-Verlag is part of a strong company network. The holding at the top of the group is Zimper GmbH, to which all houses belong. Together with Zimper Media, LSZ, Improove and RIS, we connect media, events, marketing and knowledge in the municipal and construction sectors.

Zimper GmbH

Holding

KOMMUNAL VERLAG
Zimper Media
LSZ
Improove
RIS GmbH
The companies

Five houses, one network.

KOMMUNAL VERLAG

Österreichischer Kommunal-Verlag

Vienna
Media house

The 360° media house for the municipal and construction sectors – from KOMMUNAL to a3BAU: trade media, digital, newsletters, events, Kommunalbedarf.at and Campus.

kommunalverlag.at →
Logo Zimper Media

Zimper Media

Berlin
Subsidiary of the Kommunal-Verlag

German subsidiary of the Kommunal-Verlag – municipal marketing for the German market with the trade media KOMMUNAL Deutschland and die:gemeinde.

zimpermedia.de →
Logo LSZ

LSZ

Vienna & Munich
Events & congresses

Organiser of more than 50 specialist conferences, congresses and webinars per year – with the subsidiary LSZ Future Connections in Munich.

lsz.at →
Logo Improove

Improove

Vienna & Madrid
Online marketing · SEO & GEO

International digital marketing agency for SEO, SEA, GEO and content (founded in 2009). Part of the group since early 2026.

improove.net →
Logo RIS GmbH

RIS GmbH

Shareholding · 25.3%

Digital services for municipalities – including the Gem2Go and Kommunos platforms.

ris.at →
Timeline

How the network has grown.

From the founding of the publishing house to the company group – step by step.

2026

Improove – acquisition (100%), digital marketing for SEO & GEO.

20XX

RIS GmbH – shareholding (25.3%), Gem2Go & Kommunos.

20XX

LSZ (Vienna & Munich) – events, congresses & webinars.

20XX

Zimper Media (Berlin) – building the German market with KOMMUNAL Deutschland and die:gemeinde.

1989

Founding of the Österreichischer Kommunal-Verlag – the founding house of today's group.