DXI takes customer interaction to a new level: Pre-seed financing secures AI leadership in the field of “digital customer twins” 

• DXI GmbH secures significant pre-seed financing from HTGF and business angels to scale its PersonaX® AI platform.  
• The platform enables realistic, interactive “digital customer twins” based on LIA technology and >70% cost savings in market research. 
• With PersonaX®, companies can act proactively, realistically, and in real time from the customer’s perspective – a milestone for customer experience and insights.  
• “Our vision is a realistic dialogue with every digital B2B or B2C customer twin,” say founders Frank Rauchfuß and Stefan Trebbin.  

The Munich-based deep tech startup DXI GmbH has received strong funding in a pre-seed financing round. Investors include the High-Tech Gründerfonds (HTGF) as well as several renowned business angels from the AI and SaaS sectors. The VentureCon networking event organized by BayStartUP brought the founding team and investors together. With the fresh capital, DXI plans to further develop its AI platform PersonaX®, which enables companies for the first time to engage in dialogue with dynamic, adaptive “Digital Customer Twins” at any time. These Customer Twins can support in conducting A/B tests,  develop marketing campaigns, or optimize sales and support processes – in real time and based on deep customer insights. In doing so, it anticipates customer reactions, reflects authentic user behavior, and helps companies make decisions consistently from the customer’s perspective. The DXI team is pursuing a radical change in perspective: true customer centricity means consistently thinking and acting from the customer’s point of view. What if the customer could develop go-to-market measures, product ideas, or user-specific operating instructions themselves? It’s possible with digital technology, and that’s where DXI comes in with PersonaX®. 

“We wanted to keep customer knowledge available at all times and make it accessible for dialogue so that it can be used realistically in digital applications and scaled easily,” says Stefan Trebbin, co-founder and CAIO (Chief AI Officer) of DXI GmbH.  

The solution: a digital customer twin that not only observes but also actively shapes the process. PersonaX® takes on real use cases, generates deep customer insights in real time, and can take on assigned tasks—for example, as an “AI advisor” in product development, marketing, or customer success. Based on the proprietary AI Latent Insights Amplifier (LIA) platform, leading AI technologies are combined with an excellent user experience, enabling companies to make decisions from the customer’s perspective – at any time, based on data, and with empathy. “Thanks to its proprietary LIA technology, PersonaX® delivers models that are up to 20 times more efficient with over 90% accuracy – a technological quantum leap compared to conventional simulation tools,” explains Stefan Trebbin.  

In addition to digital customer twins, PersonaX® also maps expert twins and enables the automation of entire processes in B2B and B2C application areas – from innovation management to CRM and customer support.  

“Our vision is to use PersonaX® to create lifelike, adaptive B2B and B2C customer twins that enable companies not only to better understand customer expectations, but also to optimize their offerings and anticipate behavior,” says Frank Rauchfuß, co-founder and CEO of DXI GmbH. “By using digital customer twins, we are able to reduce costs by more than 70% and reduce time-to-insight by 90%.”  

Johannes Dierkes, Investment Manager at HTGF, comments: “At DXI, a very well-connected, experienced, and technically knowledgeable founding team has found an attractive market. The possible applications of this solution are enormously diverse. We see great potential for DXI’s digital twins to become a must-have tool in a wide range of business areas.”  

According to Gartner Inc., the market for digital customer twins is on the verge of a major transformation: within the next five to ten years, almost all companies are expected to use digital twins of their customers. As the recent winner of Startup of the Week 2025, the iF Design Award 2024 and the AI Paper Award from TU Dresden, DXI confirms its role as a technological innovation leader – also in a European comparison.  

With this pre-seed financing, DXI plans to take the next step toward fully autonomous customer twins, setting new standards for digital customer dialogue with a unique comination of real-time capability, dialogue depth and technological maturity.  

Dr. Carsten Rudolph, Managing Director at BayStartUP, comments: “The DXI team combines entrepreneurial experience with a clear eye for digital efficiency levers. Their solution has the potential to become the standard for data-driven optimization in companies – a real toolkit for the future of digital transformation. We are delighted to have HTGF on board as an experienced investor who will now play a key role in driving the growth of this promising start-up.”  

About DXI GmbH 
DXI GmbH was founded on October 1, 2024, in Munich and specializes in AI-driven customer twins. With its PersonaX® platform, the startup offers companies a revolutionary way to interact with digital representations of their customers on eye level – dynamically, realistically, and in real time. The company’s proprietary Latent Insight Amplifier (LIA) technology combines deep data analysis with intuitive UX and leading AI. In addition to customer twins, the platform also trains expert twins and automates complex business processes. DXI has been honored with the iF Design Award 2024, among other awards, and is one of the innovation leaders in the field of “digital customer twins.” Frank Rauchfuß and Stefan Trebbin are AI pioneers with experience from over 800 projects in the B2B/B2C sector. 

Media contact 
DXI GmbH 
Frank Rauchfuß, CEO  
Email: founder@dx-i.com 
Website: www.dx-i.com 
Taufkirchen near Munich, Germany 

About HTGF – High-Tech Gründerfonds  
HTGF is one of the leading and most active early-stage investors in Germany and Europe, financing start-ups in the fields of Deep Tech, Industrial Tech, Climate Tech, Digital Tech, Life Sciences and Chemistry. With its experienced investment team, HTGF supports start-ups in all phases of their development into international market leaders. HTGF invests in pre-seed and seed phases and can participate significantly in later-stage financing rounds. Across its funds, HTGF has over 2 billion euros under management. Since its inception in 2005, HTGF has financed more than 770 start-ups and achieved almost 200 successful exits.   
Fund investors in the public-private partnership include the German Federal Ministry for Economic Affairs and Climate Action, KfW Capital as well as 45 companies and family offices.   
For more information, please visit HTGF.de or follow us on LinkedIn.    

Media contact  
High-Tech Gründerfonds Management GmbH  
Tobias Jacob, Senior Marketing & Communications Manager   
T.: +49 228 – 82300 – 121 
t.jacob@htgf.de