Arndt shares his outstanding entrepreneurial experience in intensive workshops for early-stage start-ups in the SIBB Digital Transition Incubator. Over the years, the feedback from participants has always been excellent. He regularly gets a 5/5 from all participants and the word "impressive" is frequently mentioned.

Etta DannemannProgram Manager and Start-Up Coach at SIBB

Arndt's deep understanding of digital business models and years of experience make him a standout in our start-up programmes. His expert guidance has proven invaluable to our founders, helping them successfully navigate the complexities of the digital landscape and launch their businesses with confidence.

Dr. Sebastian SchäferCo-Founder & Managing Director at TechQuartier

Arndt has been a loyal and valued member of the Advisory Board of Falling Walls Venture since 2018 and I have worked with him since 2022. Arndt is someone you can rely on. He is critical and thoughtful, but firm in his judgement, which I really appreciate. What also sets him apart is his expertise and experience in science and business, which is an incredible asset for our project and the selection of the start-ups.

Nadja PahlHead of Venture at Falling Walls Foundation

I hardly know anyone who has accompanied more start-ups than Arndt. He supports successful implementation and scaling in the triangle of business model & strategy, product and technology. His metrics-based financial plan approach is also very well received by CODE University students in workshops and helps them understand and communicate their own business model logic. Furthermore, I know Arndt through several joint projects as a very committed business angel and advisory board member.

Prof. Dr. Roland FassauerSerial Entrepreneur, Business Angel and Professor at CODE University Berlin

Arndt supports our CHEMOVATOR teams not only with introductory interactive workshops, but also with the implementation of individual and custom-fit coaching on the topics of business model, strategy, product, financial planning and financing. In addition, he helps the teams with the focused step-by-step implementation of the business models as well as the successful market entry and subsequent growth. The combination of experienced coach, entrepreneur and investor is particularly authentic and helpful.

Gati KalimHead of Venture Portfolio Management at Chemovator / BASF SE

Arndt has been an invaluable coach for the AI startups in our accelerator cohorts. His expertise in the triangle of business model and strategy, product, and technology has been instrumental in helping our startup teams achieve their long-term goals. With a wealth of experience in these areas, Arndt has a gift for breaking down complex concepts into easy-to-understand terms. His metrics-driven business models and financial plans are invaluable resources for any team that wants to focus on what matters and build a sustainable business.

Patrick WidmannHead of Startup Programs at KIT Innovation and AI Startup Consultant at KI Garage

Arndt’s lean analytics and finance workshops have been an invaluable asset to our accelerator program. Arndt’s exceptional hands-on training, coupled with his extensive entrepreneurial experience and analytical mindset, has proven to be a tremendous support to the more than 100 founders who have participated in our program. We highly recommend his workshops to anyone looking to gain a deeper understanding of lean analytics and financial modelling. After five successful batches, it is clear that Arndt’s training has garnered a great deal of love and support within our community, and we look forward to continuing our partnership with him in the future.

Lou KestProject Manager at Berlin Innovation Agency

We are very happy to work with Arndt as a jury member in our start-up pitch. He does not only have a lot of know-how about digital business models, but also broad experience and people knowledge in the start-up environment. He instinctively asks the right questions and puts his finger in the wound when things do not add up.

Holger GeißlerMD & Founder at Smart News Fachverlag (marktforschung.de / consulting.de)

I am happy to build up our company Sparky Space together with Arndt. Every day we are confronted with a variety of challenges, which we tackle and solve together with vigor. I appreciate Arndt for his extensive expertise in the AI environment, his experience in building digital business models, his entrepreneurial mindset as well as the collaboration in the team.

Nils RistauCEO & Co-Founder at Sparky Space

Arndt is a very valuable coach for Applied Data Incubator startups. He always delivers excellent workshops full of insights and content on very technical topics such as financial planning, and DNA metrics for business modelling. Thanks to his extensive experience, great passion for startups and passion for teaching, Arndt always manages to transfer knowledge in a very effective way with many examples, concrete exercises providing many learning materials and templates. Moreover, Arndt understands the hard time young entrepreneurs often face, always offering solutions for a positive outlook and mindset.

Stefania CasiraghiProgram Manager at Applied Data Incubator

I cannot recommend Arndt highly enough for his exceptional blend of expertise in technology, business, and finance. His tailored support empowered our startup partners to quickly grasp new concepts and tackle challenges head-on. Arndt's lean and fast approach, combined with his personable and well-regarded demeanor, made working with him a transformative experience that has left a lasting impact on our startup ecosystem.

Nikos GreenSenior Venture Architect & PO Neuroscience at ROX Health

Arndt's workshop at the KI-Garage was a game-changer for my business. His valuable insights and engaging presentation style made it one of the best workshops I've ever attended: great input, very well explained and absolutely relevant. I highly recommend Arndt to anyone looking to take their business to the next level.

Leonie DowlingCEO & Co-Founder at Palasts

The financial modeling workshop was amazing! It was not only incredibly insightful but also super practical and actionable. Without a doubt, this is one of the best workshops I've ever attended in this area. I highly recommend it to anyone seeking practical knowledge and skills in financial modeling! Arndt's expertise in combining metrics-based business model approaches with highly dynamic financial plans and actionable tips from his own entrepreneurial journey is a perfect combination.

Leonard RinserProject Lead at Fraunhofer AHEAD and Co-Founder & MD at GLAICE healthcare

Working with Arndt is always fun. In his workshops for startup teams, he shares many experiences and links them to messages. He has many creative ideas based on his own ramified experiences or resulting from the manifold consultations with start-ups. His assessments are honest and constructive in the sense that concrete options for action can be derived from them.

Ilka MaiManagement Foundation & Transfer at Potsdam Science Park

We started working with Arndt 8 years ago and have regularly sought his help ever since. He has helped us prioritise, challenge our business model (CAC vs. CLV) and refine our go-to-market strategy. Arndt has been a mentor, coach and friend. We can highly recommend him to any digital start-up looking for advice and help.

Christian KlugeCEO & Founder at Smart Pricer | exAirliner | exMcKinsey

Arndt's talk at Tech Quartier was truly enlightening! Even following the lecture from the stream, I was very excited. In just 3 hours, Arndt taught me more than I learned during an entire semester of finance in business studies. I feel empowered and equipped with new insights to take our business to the next level.

Lara SchuhwerkCEO & Co-Founder at Beneto Foods & Beneto Farm

Arndt has been with us for about 2 years and was already a valuable mentor, advisor and guide during the pre-foundation phase. His high reliability and factual assessments have helped us a lot beyond and through our financing rounds and in many matters.

Lukas PagelCEO & Co-Founder at Justin LegalTech

Arndt's Financial Planning Deep Dive provided an incredible amount of added value and was the best part of the workshop. Thank you, Arndt, for sharing your expertise and for delivering an exceptional experience. I highly recommend this workshop to anyone seeking to improve their financial planning skills!

Andrea ReinemannCo-Founder at Eating at Maples