OMMAX advised Harald Quandt Industriebeteiligungen (HQIB) on the successful acquisition of Ergosign Group

Harald Quandt Industriebeteiligungen GmbH (HQIB) acquires a majority stake in Ergosign Group, the market-leading digital agency for user experience design in the DACH region.

The two company founders Dr. Marcus Plach and Prof. Dr. Dieter Wallach will remain shareholders and Managing Directors of the company. The long-term oriented partnership with a sustainable investment approach of HQIB aims at further growth of Ergosign. Focus lies on the internationalization of the group and the expansion of the service portfolio.

OMMAX supported HQIB with a commercial due diligence in order to assess the relevant market, competitive landscape, customer segments, business model and growth potential. Ergosign has a strong competitive positioning as the leading UX agency in DACH, showcasing strong USPs like their internally developed UX prototyping software Antetype. In addition, the investment case is supported by strong underlying market growth and vast value creation potentials for the entire industry going forward.

Toni Stork, OMMAX CEO and Managing Partner, comments: “We are glad that we had the chance to support the HQIB deal team on the successful transaction. We wish them and their portfolio companies all the best and are happy to further support them with future transactions and value creation in newly acquired businesses.”

Do you want to know more about OMMAX’ experience in transaction advisory? Get in touch with OMMAX CEO and Managing Director Toni Stork toni.stork [at]



Harald Quandt Industriebeteiligungen GmbH is the principal investment firm of the family Harald Quandt joined by a small, select number of (industrial) families and partners. HQIB invests in small and medium sized companies within the German-speaking region, that are leading in established and technologically sophisticated market niches with attractive growth potential. As an industrial holding company, HQIB pursues a long-term, sustainable investment approach and is not subject to any time restrictions or limited investment periods.
For more information about Harald Quandt Industriebeteiligungen, please visit


Ergosign is a digital agency with a focus on user experience and is convinced that digital products should support people in their work and enrich their lives. With a full-service approach, Ergosign focuses on a human-centered, goal-oriented and collaborative mindset and serves clients from a wide range of industries and business sectors. Ergosign’s team of more than 180 experts at six locations in Germany and Switzerland has extensive experience in digitalization from more than 4,000 projects. Since 2019, Ergosign is also represented in the Chinese market with the joint venture YIGU. Having received various awards, Ergosign regularly demonstrates its creativity and quality standards. For more information about Ergosign GmbH, please visit


OMMAX – Digital Solutions is a digital strategy consultancy based in Europe, specializing in sustainable digital value creation while catering to an array of mid-sized companies, large enterprises and >50 private equity firms around the world. Composed of >150 international experts and with >700 realized digital projects in the fields of digital strategy, digital operational excellence, data science, and transaction advisory services, OMMAX is a forerunner concerning holistic data-driven strategy consulting and end-to-end execution of digital solutions. More information:

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