Telio, Hamburg (Germany)

Communications and media systems for correctional facilities

Key facts at a glance

  • Growth through further internationalisation
  • Expansion of the product range through add-on acquisitions
  • Revenues and earnings increase in comparison to prior year

Revenues in €mn












Investment by
DBAG's interest
Management Buyout

Majority investment of DBAG Fund VI
First invested
April 2016

As of 30 September 2022



Telio develops, installs and operates communications and media systems for correctional facilities. It installs telephones and related systems, allowing inmates to make monitored calls from communal areas or directly from their cells. Telio’s product range also includes comprehensive multimedia systems, which comprise, for example, TVs, radios and PCs with restricted internet access. In addition to the corresponding installations (cables and end devices), Telio also offers software that monitors telephone calls and handles the related billing. The software relieves prison officers of some of their responsibilities, thereby simplifying everyday life at correctional facilities. Furthermore, Telio extended its product portfolio to mobile detection and jamming solutions following the add-on acquisition of KEAS.

Telio is a young, dynamic and rapidly-growing company. Here we can provide our expertise in the enhancement of corporate structures and support for the preparation of company acquisitions.

Tom Alzin
Member of the Board of Management


per cent

of Telio's revenues are generated outside of Germany

Potential for development

The business is driven by efforts to ensure easier reintegration of the prisoners into society after their release. It has been shown that regular contact with family and friends contributes significantly to this goal. Another promising application for Telio’s products is screen-based learning in preparation for life after prison. The company has good growth prospects through increasing its international reach within Europe and beyond, developing new products and broadening its customer base. We see additional potential for growth particularly in the expansion of activities in the area of jamming, where Telio has already won a major contract in France. Jamming is the targeted interference and obstruction of mobile telephony signals. In addition, the company will continue to selectively pursue acquisitions to broaden its product and service portfolio.


Tom Alzin
Tom Alzin
Tom Alzin
Investment Business and Investment Process, Market Development Italy, Business Development, Risk Management, Research, Organisation, IT

Tom Alzin

Member of the Board of Management

Born in 1980, Member of the Board of Management since March 2021; appointed until end of February 2026.

Tom Alzin joined Deutsche Beteiligungs AG in 2004 and became a Managing Director in 2011. He has 18 years of experience in the private equity business.

Tom Alzin holds a degree in Business Administration from the HEC Lausanne, and also studied at the London School of Economics and Political Science.