SJ

Stefan Jeschonnek

CEO at Zeitgold

📍 Berlin Metropolitan Area, Germany🔄 Updated September 2026💼 35 investments📅 11 years investing🗓 Last invested Jan 2022
VC🌍 Germany20+ investments
35
Total investments
24
Early stage
4
Mid stage
2
Late stage
11y
Years active

Portfolio

34 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Investor
2022
Navan is the all-in-one solution that makes travel easy so you can focus on being there, not getting there. Say goodbye to spending hours on the phone trying to change your flight or saving stacks of receipts to manually input expenses. From EAs and finance teams to travel managers and employees, Navan empowers people to focus on the things that matter most to them — all while providing companies with real-time visibility, savings, and control.
Investor
2022
Navan (NASDAQ: NAVN) is the global AI-powered business travel and expense platform that makes travel easy for frequent travelers. From finding flights and hotels, to automating expense reconciliation, with 24/7 support along the way, Navan delivers an intuitive experience travelers love and finance teams rely on. See how Navan customers benefit and learn more at navan.com.
Investor
2022
Pennylane is building the financial OS (Operating System) for European SMEs. A single source of truth for financial and accounting data, used on one side by entrepreneurs to run their business (invoicing and getting paid, paying suppliers and expense management, piloting cash and profitability) and on the other side by their accountant for bookkeeping and tax filings. Saving time to all entrepreneurs and accountants, helping them to make the right decisions and enabling 3rd parties to offer added-value personalized financial services. We’ve launched in France and will expand to other markets in Continental Europe in 2024. Our commercial website is thus in French only but the code is obviously documented in English and our tech team speaks English. We’re product-led, growing fast, backed by strong investors and are hiring software engineers anywhere in Europe to join our experienced remote-first engineering team.
early stageAccounting
Investor
2021
Deed is a workplace giving and volunteering platform that puts people first, because user experience shouldn’t stand between you and doing good. We foster genuine human connection across departments and time zones by empowering employees to support causes they care about together, both in-person and online. We help social impact and DEIB teams alike to centralize all their programming, from emergency fundraisers to fun volunteering events, and engage diverse employee resource groups. Everyone’s passion can be met; Deed showcases over two million nonprofits and counting. Our vast payment infrastructure is backed by trusted names like PayPal, who securely process billions in donations per year—to help you give with ease and confidence. Now imagine all your community’s good deeds happening on a single, exceptionally designed platform—with you at the switchboard, watching an enterprise transform into a more positive force in the world.
Investor
2021
Automate business processes end-to-end with guaranteed results using super.AI Intelligent Document Processing (IDP).
Investor
2021
Were building the #1 AI learning companion for 1 billion students worldwide - driven by the purpose of democratising access to the highest quality education. Millions of students already use our AI learning companion weekly across multiple countries. With proprietary learning data and breakthrough AI technology, were determined to become the defining platform that transforms how students access education globally. Education is at a historic inflection point. AI is finally enabling truly personalised learning at scale - not just disrupting traditional methods, but revolutionising the entire global learning experience. Ready to join our elite team of hands-on builders? Help us become the generational AI learning company serving 1+ billion students. Were looking for engineers, product builders, and growth accelerators who thrive in high-velocity environments and want to architect the future of learning.
Investor
2021
At Ultimate, our mission is to revolutionize the world of decentralized finance. We are building your pocket powerhouse for crypto! Zero-fee trading, NFTs, DeFi & more, all in one wallet. Self-custody, full control. Currently live on Ethereum and Solana. Join us as we pave the way for a new era in digital finance.
Investor
2021
A Guru Investimentos é uma fintech que foi fundada a partir de uma ideia simples: transformar investimentos em algo mais fácil para todos. Por isso, trouxemos a simplicidade para tudo o que oferecemos: nossas ferramentas são intuitivas para você investir em poucos cliques e o atendimento é feito por pessoas especialistas e que falam a sua língua, sem o blá blá blá corporativo do mercado financeiro. Desde 2019, são mais de vinte mil clientes que estão com a gente na missão de tornar todos os brasileiros investidores e ser parte da mudança que querem ver no mercado financeiro. Baixe o nosso app na Apple Store ou Google Play e faça parte da transformação!
Investor
2021
Deel is one platform for payroll, HR, benefits, mobility, performance, and device management across 150+ countries. Built on owned infrastructure, powered by AI, and supported by thousands of local experts, Deel helps businesses scale smarter, faster, and more compliantly. Trusted by 40,000+ customers, and created to become a global brand people love. Learn more at deel.com.
Investor
2021
We are not solving climate change fast enough. People, as individuals, can only donate so much. That is why we want to build an app that puts 80% of profits directly to responsible reforestation. With Ecosia and our tree-planting partners, we will build an ecosystem of responsible alternatives to everyday services like banking and internet search. All to help solve the world’s biggest problem: climate change. Were live in the US!
Investor
2021
SEON. Fraud Fighters https://seon.io At SEON, we strive to help online businesses reduce the costs, time, and challenges faced due to fraud. Whether you are a global financial leader or a small eCommerce, our solution simplifies fraud management so you can focus on what matters: growing and scaling your company. Our talented team of consultants and developers is there to create a safer environment for online businesses. Cybersecurity is our passion. Anticipating risk vectors is our expertise. SEON is how we create a unified solution that combines ease of use, flexibility, and the ability to tackle complex problems in a simple way for your business.
Investor
2021
At Mondu, we are changing the B2B payments ecosystem by providing payment solutions that enable any B2B company to grow quickly and safely. We enable merchants and marketplaces to offer their business customers the most popular B2B payment methods with flexible payment terms on every sales channel - online, in tele-sales or field sales. Our Buy Now, Pay Later solutions include purchase on invoice, SEPA direct debit, and Installments. Vendors who work with Mondu are protected from default risk and save the hassle of collections and dunning. Mondu brings B2B payments up to par with B2C payments, putting customers at the heart of the payment flow and ensuring they have a seamless, modern, and state-of-the-art experience - whether they are sellers or buyers. Founded in 2021, we’ve raised $90 million in equity and debt financing to-date, backed by leading investors Valar Ventures, Cherry Ventures, the FinTech Collective, and German bank VVRB.
Investor
2021
Conduit is a better way for global businesses to simply and cheaply move money and grow money with faster speed, better visibility and fewer steps than traditional payment rails. With a Conduit account, global businesses can swap between local fiat (>25 local currencies supported), digital assets (e.g., USDC, USDT), and U.S. Dollars (USD) to make seamless cross-border commercial transactions, earn yield on tokenized bonds such as U.S. treasury bills or energy contracts, and hold digital assets. Conduit gives global businesses an early-mover advantage to maximize new financial opportunities to make cross-border B2B payments and settle invoices simply and efficiently -- including to & from U.S. companies without requiring a U.S. entity or U.S. bank account. The Conduit payments dashboard offers businesses a simple, elegant, and intuitive dashboard to make cross-border payments today. Get started at conduit.fi
Investor
2020
We are Gorillas, and we’re on a mission to change the way you do groceries. We believe that in a world where we have the technology to go to the moon, grocery shopping should be radically faster and far more convenient. Backed by Getir, the pioneer of ultra-fast delivery, we offer a wide selection of fresh fruits, dairy, vegan products, and cooled drinks—plus unique selections you won’t find in supermarkets. All delivered to your door in minutes by our valued rider crew.
Investor
2020
Jumbotail is Indias leading B2B marketplace and New Retail platform, serving thousands of mom & pop stores (“Kiranas”). Jumbotail ecosystem has 4 in-house, proprietary platforms - B2B online marketplace, Supply Chain & Logistics, Fintech for SME Lending, and Retail platform that powers its J24 branded convenience grocery stores. Jumbotail transforms traditional unorganised kirana stores into J24 branded modern convenience grocery stores, owned and operated by kirana entrepreneurs, powered by Jumbotails New Retail platform and playbook consisting of J24 consumer branding, in-store GoldenEye retail technology, data driven product selection and merchandising insights, integrated supply chain with daily store fulfilments, Greencard loyalty program and payment solutions. Our vision is to organise the food and grocery ecosystem in India using technology, data science and design. We are building products, platforms and services for the next billion people of India, who have fundamentally different needs - access, language, selection, supply chain, financial, cultural, and the like. Our market potential is huge - in the order of hundreds of billions of dollars. We are reimagining and reengineering the food and grocery ecosystem through intelligent technology, intuitive design, and innovative business and supply chain models. We are a passionate team driven by our sense of purpose to solve a critical real world problem. Each team member will have significant ownership of key components that go into the next generation e-commerce, supply chain, demand generation, and credit technology platforms and services that we are building. The work you will do at Jumbotail will impact real lives and bring a lasting positive change for the next billion people of India. We promise a fun, fast paced ride with some of the smartest people, with full of opportunities to learn and grow, and leave a legacy. Come join us, make your one life count! Write to us at mission@jumbotail.com
Show all 34 investments ↓
Experience · 42 entries
All (42)
Investments (35)
Founder (2)
2022
Investor
2022
Navan is the all-in-one solution that makes travel easy so you can focus on being there, not getting there. Say goodbye to spending hours on the phone trying to change your flight or saving stacks of receipts to manually input expenses. From EAs and finance teams to travel managers and employees, Navan empowers people to focus on the things that matter most to them — all while providing companies with real-time visibility, savings, and control.
Investor
2022
Navan (NASDAQ: NAVN) is the global AI-powered business travel and expense platform that makes travel easy for frequent travelers. From finding flights and hotels, to automating expense reconciliation, with 24/7 support along the way, Navan delivers an intuitive experience travelers love and finance teams rely on. See how Navan customers benefit and learn more at navan.com.
Investor
2022
Pennylane is building the financial OS (Operating System) for European SMEs. A single source of truth for financial and accounting data, used on one side by entrepreneurs to run their business (invoicing and getting paid, paying suppliers and expense management, piloting cash and profitability) and on the other side by their accountant for bookkeeping and tax filings. Saving time to all entrepreneurs and accountants, helping them to make the right decisions and enabling 3rd parties to offer added-value personalized financial services. We’ve launched in France and will expand to other markets in Continental Europe in 2024. Our commercial website is thus in French only but the code is obviously documented in English and our tech team speaks English. We’re product-led, growing fast, backed by strong investors and are hiring software engineers anywhere in Europe to join our experienced remote-first engineering team.
early stageAccounting
2021
Investor
2021
Deed is a workplace giving and volunteering platform that puts people first, because user experience shouldn’t stand between you and doing good. We foster genuine human connection across departments and time zones by empowering employees to support causes they care about together, both in-person and online. We help social impact and DEIB teams alike to centralize all their programming, from emergency fundraisers to fun volunteering events, and engage diverse employee resource groups. Everyone’s passion can be met; Deed showcases over two million nonprofits and counting. Our vast payment infrastructure is backed by trusted names like PayPal, who securely process billions in donations per year—to help you give with ease and confidence. Now imagine all your community’s good deeds happening on a single, exceptionally designed platform—with you at the switchboard, watching an enterprise transform into a more positive force in the world.
Investor
2021
Automate business processes end-to-end with guaranteed results using super.AI Intelligent Document Processing (IDP).
Show all 42 entries ↓
Investment activity
2015–2022 · 35 investments
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