Sven Rittau
About Sven Rittau
Sven Rittau is an e-commerce entrepreneur based in Munich. He started as a strategy consultant at Roland Berger (1997 to 1999). He then co-founded zooplus AG and was its COO from 1999 to 2007. He studied economics at the University of Fribourg.
From 2007 to 2013 he was CEO and co-founder of Shirtinator AG. From 2009 to 2012 he was president of EO Germany e.V. (Entrepreneurs' Organization). Since 2014 he has been CEO of K5.de, which he runs with Jochen Krisch. K5 organizes the K5 Future Retail conference in Berlin, and Rittau hosts the K5 podcast ChefTreff. He is also an initiator and advisor of GLORE50.
NFX Signal lists six investments on record for Rittau, dated from 2021 to 2025, all at pre-seed or seed. Crunchbase also records him as an investor in the wyrld pre-seed round. His X profile describes him as an e-commerce investor and advisor connected to GLORE50 and FURE Capital. Nordic9 says he invests through Fure Capital together with Jochen Krisch.
Rittau is named among the strategic angels in ShopAgentic's €1.9M pre-seed, announced in 2026. May Ventures and Greenfield Capital co-led the round. ShopAgentic is building commerce infrastructure for AI agents. Its founders have said today's commerce stack was built for human shoppers, not agents. The Lounge deals desk lists the round as June 2026. We found no other public AI investments by Rittau.
His recorded investments are pre-seed and seed rounds, mostly in e-commerce and retail, and the NFX listing is for Germany-based companies. NFX Signal lists his investment range as $5K to $50K, with a typical check of $25K. Those figures come from a third-party profile, not from a statement by Rittau, so treat them as indicative. NFX also notes an interest in packaging-as-a-service. We found no public statement from him on what he looks for in pitches.
- ShopAgentic: agentic commerce infrastructure. Angel in the €1.9M pre-seed, 2026.
- wyrld: pre-seed round of about $1M, January 2025 (NFX Signal, Crunchbase).
- Fraud0: seed round of about $7M, August 2023 (NFX Signal).
- Ink&: seed round, December 2022 (NFX Signal).
- Miss Pompadour: seed round, August 2022 (NFX Signal).
- Liefergrün: pre-seed round, February 2021 (NFX Signal).
- Vytal: seed round of about $2M, February 2021 (NFX Signal).
- signal.nfx.com/investors/sven-rittau
- linkedin.com/in/svenrittau
- linkedin.com/in/ivobronsveld
- crunchbase.com/funding_round/wyrld-pre-seed--37200e05
- x.com/svenrittau
- nordic9.com/companies/sven-rittau
- ispo.com/en/events/speaker/sven-rittau
- podcasts.apple.com/us/podcast/cheftreff-ein-k5-podcast-von-sven-rittau
Investing activity
Sven Rittau appears in 1 AI deal tracked by the Lounge deals desk. The rounds are mostly Pre-seed, with a median round size of $2M. The most recent is ShopAgentic (Pre-seed, €1.9M, Jun 2026).
Sven Rittau most often invests alongside Greenfield Partners, May Ventures, Peter Wolff and Peter McCoy, and the companies they back on Lounge are mostly in AI.
Deals
Frequently asked questions about Sven Rittau
Who is Sven Rittau?
Sven Rittau is a Munich-based e-commerce entrepreneur and angel investor. He co-founded zooplus and Shirtinator, and he is CEO of K5.de, the company behind K5 Future Retail.
Has Sven Rittau invested in AI startups?
Yes. He is named as one of the strategic angels in ShopAgentic's €1.9M pre-seed, which May Ventures and Greenfield Capital co-led. We found no other public AI investments.
What check size does Sven Rittau write?
He has not stated a check size publicly as far as we found. NFX Signal lists a $5K to $50K range with a $25K typical check, but that is a third-party estimate.
What stage does Sven Rittau invest in?
His recorded investments are pre-seed and seed rounds. They run from 2021 to 2025, and most are in e-commerce and retail.
How can founders reach Sven Rittau?
He is active on LinkedIn and X. He also runs K5 Future Retail and hosts the K5 podcast, where founders in commerce are regular guests.
What is Sven Rittau's connection to Fure Capital?
His X profile mentions FURE Capital, and Nordic9 says he invests through it with Jochen Krisch. We found no public fund size or terms.
Is Sven Rittau an angel investor?
Yes. Sven Rittau invests personally as an angel.
What AI companies has Sven Rittau invested in?
Sven Rittau's AI investments include ShopAgentic. The 1 round on Lounge are listed on this page with amounts, dates and co-investors.
What stage does Sven Rittau invest at?
In the rounds tracked on Lounge, Sven Rittau has invested at Pre-seed, with a median round of $2M.
Who does Sven Rittau co-invest with?
Sven Rittau's most frequent co-investors on Lounge are Greenfield Partners (1 deal), May Ventures (1 deal), Peter Wolff (1 deal), Peter McCoy (1 deal) and Jochen Krisch (1 deal).