STARFACE Group
Digital communication creates digital workplaces.
The STARFACE Group is comprised of STARFACE GmbH, estos GmbH, and vio GmbH. Each of these companies is a successful specialist in its field, united by a shared goal: digitizing workplaces.
That’s what drives us
Three companies,
one vision.
The secret to the STARFACE Group’s success: highly specialized and accomplished ICT companies coming together to pool their expertise, visions, and skills. Viewed as a group, their collective potential is harnessed within the STARFACE Group and transformed into the development of innovative products, solutions, and communication platforms.
The companies that make up the STARFACE Group work tirelessly to improve communication for businesses of all sizes—making it better, faster, more efficient, and more user-friendly. They create products and solutions that are compatible with all common devices and operating systems, embodying true “Unified Communication & Collaboration” made in Germany.
STARFACE Group.
Since its founding in 2005, STARFACE and STARFACE White Label have been driven by a single goal: to make business communication and collaboration in the workplace as simple and convenient as possible.
For over 18 years, our telephone systems (for cloud, hardware/appliance, and virtual machines) have combined industry standards with emerging technology trends. Our IP-based solutions are compatible with all common devices and operating systems, embodying true “Unified Communication & Collaboration” made in Germany.
Since 1997, estos has been developing Unified Communications (UC) and CTI software focused on business communication. To date, more than one million licenses for our software products are in use worldwide. The foundation of this success lies in our ability to identify emerging trends early and shape them proactively with innovative products.
Founded in 2007, vio:networks launched the first version of its cloud-based phone system in 2008. In 2017, vio:networks began evolving this solution into a comprehensive Unified Communications platform to modernize business communication and adapt to the demands of digital work environments. Since then, vio:networks has focused on seamlessly integrating telephony into its customers’ existing software ecosystems.
Our Locations
Germany
STARFACE GmbH Adlerstraße 61 76137 Karlsruhe
STARFACE White Label GmbH Schloßschmidstraße 5 (6. OG) 80639 München
estos GmbH Petersbrunner Str. 13 82319 Starnberg
vio:networks GmbH Bessemerstraße 82 (10. OG Süd) 12103 Berlin
Austria
STARFACE GmbH Quartier Belverde Central Gertrude Fröhlich Sandner Straße 3 1100 Wien
The STARFACE Group in numbers.
> 270 employees
in our teams
> 60 industry awards won
> 1,000,000 User
> 3.000 Partner companies
> 55,000 customers
Largest UC manufacturer in the German-speaking region
5 locations in the German-speaking region
Securing the Future Together
About Gamma Communications.
As of February 20, 2025, the STARFACE Group – including STARFACE GmbH, estos GmbH, STARFACE WhiteLabel GmbH, and vio:networks GmbH – is part of Gamma Communications plc.
Gamma Communications is a leading provider of technology-driven communication services across Europe. With solutions in Unified Communications, mobile, security, and connectivity, Gamma delivers secure end-to-end communication systems for businesses. With approximately 2,200 employees, Gamma operates in the UK, Germany, Spain, and the Benelux region, offering its products through a strong network of channel partners and direct sales.
By acquiring the STARFACE Group, Gamma is strengthening its position in the German market and expanding its portfolio with powerful communication solutions developed in Germany. Customers and partners alike benefit from a broader range of services, international expertise, and the long-term stability of a leading pan-European provider.
Careers in the Group
This is how we work.
We are growing quickly, and our company culture is dynamic. We prioritize an attractive work environment. Our products connect people in the digital workplace, making their communication as simple as possible. That’s exactly how we operate internally as well: we emphasize strong internal communication, transparency, exceptional opportunities for growth, and fair compensation.
We welcome every new colleague who fits into our team. We don’t have time for bullying or office politics – our jobs are too exciting, and our work environment remains friendly and collaborative, which is how we intend to keep it.
Our event
This is Com.vention.
At Com.vention, the companies of the STARFACE Group showcase their latest innovations, engage directly with their partners, and host an exciting program featuring keynotes, presentations from external speakers, workshops, and an ICT trade fair. This event is exclusive to partner companies and industry press.