Frank Riemensperger

Digital Advisor & Investor / acatech - Member of the Executive Committee / Supervisory Board Member / MD 440.digital GmbH

📍 Germany🔄 Updated October 2026💼 4 investments📅 4 years investing🗓 Last invested Mar 2024
VC🌍 Germany
4
Total investments
1
Early stage
1
Mid stage
0
Late stage
4y
Years active

Portfolio

3 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Investor
Mar 2024
Our mission is to empower organizations to harness the power of data and AI strategically, accompanying them towards a future where success is not just achieved but redefined. - At the core of our mission is the belief that uncompromised quality is non-negotiable in every facet of our services - Our team of experienced senior leaders brings a wealth of knowledge, strategic insight, and hands-on expertise to guide our clients towards transformative success - Our commitment extends beyond delivering services; we aim to build lasting partnerships grounded in trust and transparency We are flexible entrepreneurs, robust & reliable like an industry leader and innovative at the core
Investor
Dec 2022
Sphere Energy is an emerging battery tech and advisory firm. What sets us apart is our passionate team of battery experts who are committed to tackling the most demanding challenges along the battery value chain by utilizing the latest technologies to excel. At the heart of our offering is a multi-sided AI-driven battery brain, solving the most pressing challenges of our customers, including the structuring and leveraging of R&D data and the interpretation and visualization of test data, among others. In addition to our core product, we also provide a complementary range of battery testing (cell-level) and advisory services to meet the diverse needs of our customers which include automotive OEMs and battery manufacturers. If you are interested to learn more, get in touch. Leverage the battery to win!
Executive Board Member
Mar 2022
acatech – Deutsche Akademie der Technikwissenschaften ist die von Bund und Sitzland Bayern geförderte nationale Akademie und Stimme der Technikwissenschaften im In- und Ausland. Wir beraten Politik und Gesellschaft in technikwissenschaftlichen und technologiepolitischen Zukunftsfragen. Unter der Schirmherrschaft des Bundespräsidenten erfüllen wir unseren Beratungsauftrag unabhängig, faktenbasiert und gemeinwohlorientiert.
Experience · 6 entries
All (6)
Investments (4)
Board (1)
2024
Investor
Mar 2024
Our mission is to empower organizations to harness the power of data and AI strategically, accompanying them towards a future where success is not just achieved but redefined. - At the core of our mission is the belief that uncompromised quality is non-negotiable in every facet of our services - Our team of experienced senior leaders brings a wealth of knowledge, strategic insight, and hands-on expertise to guide our clients towards transformative success - Our commitment extends beyond delivering services; we aim to build lasting partnerships grounded in trust and transparency We are flexible entrepreneurs, robust & reliable like an industry leader and innovative at the core
2023
Investor
Dec 2023
As a digital partner, we accompany B2B companies and the hidden champions of our time on their way to a digital future. We adapt the trends of the digital world to concrete projects. This includes versatile design services such as art direction, UI & UX design, web development on different programming languages and comprehensive online marketing services. From SEO, SEM, display and social media marketing to the implementation of Salesforce and CRM systems. Whether its individual services or holistic digitization projects, our digital world offers too many opportunities for growth to let them go to waste. In everything we initiate, we see an opportunity to challenge the status quo and set new standards. We believe in a world where technology is increasingly becoming the deciding factor. We make data-driven decisions and rely on creative and innovative technologies. Speed and quality are essential to survive in challenging times. We share our expertise with our customers. The best part? You only need one contact partner: TOWA, your partner for digital growth.
2022
Chairman of the Advisory Board
Dec 2022
As a Trusted Advisor for digital transformation and IT strategy, AdEx Partners empowers leading organizations to shape the digital future of Europe. Founded in Hamburg in 2012, we operate throughout the DACH region. Our team of around 250 consultants, with an average of 13 years of industry experience, implements tailored solutions in our key focus areas, including ERP, Data Value Management, and Business Transformation. In 2025, AdEx Partners expanded through AdEx Intelligence and our subsidiary BMC Strategy Consultants, strengthening our capabilities in AI Transformation and strategic management consulting with a focus on Financial Services. This enables us to offer clients a complete end-to-end service package – from strategy development to the execution of complex business transformations. Partnering with us means having a Trusted Advisor who brings competence and ownership to every transformation. Our collaborative approach ensures reliable outcomes and fosters a sense of security and connection for our clients. More than 60% of DAX companies across various sectors, including pharmaceuticals, healthcare, industry, retail, and financial services, rely on our comprehensive expertise. We pride ourselves on being a participatory company where all colleagues can contribute and shape AdEx Partners through our Hoods. This entrepreneurial mindset is reflected in our consulting projects. Based on #trust, we create sustainable #impact for our clients #together. We love what we do and work with great #passion. AdEx Partners has been recognized as a “Hidden Champion” three times in a row by the business magazine “Capital,” has won seven “Best of Consulting” awards from WirtschaftsWoche, and has consistently held the “Great Place to Work®” certification for years. In 2025 we have once again been recognized as one of the best employers in the Germanys Best Employers 2025 competition. Privacy Notice https://app.cortina-consult.com/policy/67a327bd430d0
Investor
Dec 2022
Sphere Energy is an emerging battery tech and advisory firm. What sets us apart is our passionate team of battery experts who are committed to tackling the most demanding challenges along the battery value chain by utilizing the latest technologies to excel. At the heart of our offering is a multi-sided AI-driven battery brain, solving the most pressing challenges of our customers, including the structuring and leveraging of R&D data and the interpretation and visualization of test data, among others. In addition to our core product, we also provide a complementary range of battery testing (cell-level) and advisory services to meet the diverse needs of our customers which include automotive OEMs and battery manufacturers. If you are interested to learn more, get in touch. Leverage the battery to win!
Executive Board Member
Mar 2022
acatech – Deutsche Akademie der Technikwissenschaften ist die von Bund und Sitzland Bayern geförderte nationale Akademie und Stimme der Technikwissenschaften im In- und Ausland. Wir beraten Politik und Gesellschaft in technikwissenschaftlichen und technologiepolitischen Zukunftsfragen. Unter der Schirmherrschaft des Bundespräsidenten erfüllen wir unseren Beratungsauftrag unabhängig, faktenbasiert und gemeinwohlorientiert.
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Investment activity
2022–2024 · 4 investments
202222023120241
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