Christian Reber

Who they are

Christian Reber is Founder & Chairman of Superlist — previously co-founded Wunderlist (acquired by Microsoft in 2015) and runs Interface Capital, a VC fund deploying 300,000–500,000 euros per company into tech startups.

Person

Christian Reber studied Mathematics, Computer Science, and International Management at FOM University of Applied Sciences between 2007 and 2010 — practical, dual-track German engineering-meets-business education. His first companies came fast: Mucelli, a music service in 2007, then Innovatics, a web and design agency in 2008. The breakthrough was 6Wunderkinder and Wunderlist in 2010 — a task management app that scaled to over 6 million users before Microsoft acquired it in 2015; he then stayed on as General Manager inside Microsoft before leaving. He founded Pitch in 2018, a collaborative presentation software company, served as CEO, and stepped down from that role in late 2023. He founded Superlist in 2020, the productivity app he describes as the unofficial successor to Wunderlist, and now sits as Founder & Chairman there. Alongside the operating track, he launched Interface Capital in 2022, a VC fund writing 300,000–500,000 euro cheques into tech startups, with portfolio bets including Notion and Synthesia; he was also a founding investor in World Fund, Europe's largest greentech VC. He writes on Medium and at christianreber.com on product design, entrepreneurship, and the Wunderlist story, and has spoken publicly on the personal relationship with risk and whether the Microsoft sale was a mistake — unusually candid territory for a founder.

Network

Reber's visible network spans enterprise reinsurance and consulting circles — he has appeared alongside Jean-Jacques Henchoz (CEO of Hannover Re) and Eric Andersen (President of Aon) at executive roundtables, and BCG Managing Director Nadine Moore is noted as a close collaborator. His investing activity connects him to Notion and Synthesia on the portfolio side, and to World Fund as a founding backer.

Jean-Jacques Henchoz· CEO, Hannover Re
Nadine Moore· Managing Director & Partner, BCG
Eric Andersen· President, Aon

How they likely show up

Serial founder pattern (Mucelli → Innovatics → 6Wunderkinder → Pitch → Superlist → Interface Capital) → builds new things rather than scaling existing ones; he'll be thinking about the next problem while running the current one.
Stepped down as CEO of Pitch while founding and running Superlist simultaneously → prefers the founding/vision chair over the day-to-day operating seat; likely delegates execution.
Active public writing on Medium and at christianreber.com, covering Wunderlist, product design, and entrepreneurship → comfortable processing ideas in public, probably responds well to direct intellectual engagement.
Spoke candidly on 20VC about whether the Microsoft sale was a mistake and his personal relationship with risk → unusually reflective for a founder; doesn't hide the hard questions.
Launched Interface Capital (300,000–500,000 euro cheques) alongside full-time founding roles → high agency, treats capital deployment as a parallel track, not a retirement hobby.
Founding investor in World Fund (greentech VC) alongside consumer productivity bets → broader thesis than just his own product category; likely interested in systemic bets.

Conversation tips

→ Reference the Wunderlist-to-Superlist continuity — he has publicly called Superlist the unofficial successor and has thought hard about what Microsoft got wrong; it's a live intellectual thread, not just history.
→ Ask a specific product design question rather than a business one — his content themes and speaking are consistently product-first; he lights up there.
→ Acknowledge the Pitch CEO transition directly if it comes up — he posted about his last day openly; he's processed it publicly and won't be guarded about it.
→ Engage him on the Interface Capital thesis — what makes a 300k–500k cheque the right entry point and what he looks for — it's a newer chapter he's building in parallel.
→ Don't expect him to represent an operator's perspective alone; he's simultaneously founder, chairman, investor, and public thinker — treat him as all four.

Toolbox

Openers

Open on the 20VC conversation where he debated publicly whether selling Wunderlist to Microsoft was a mistake — it's unusually candid for a founder and signals he's still working through the question, which makes it a live hook rather than a closed chapter.
Mention Interface Capital and his cheque size of 300,000–500,000 euros — it's a specific, intentional bet on early-stage European tech, and asking what pattern he's looking for in companies at that stage is a genuine question he'll have a sharp answer to.
Reference his Slush 2024 appearance on product-driven organisations — it's recent, it's a topic he clearly owns, and it frames the conversation around product philosophy rather than company history.

Discovery questions

Wunderlist hit 6 million users and Microsoft still shut it down — what did you learn about what Microsoft valued versus what users valued, and how did that shape how you designed Superlist?
You stepped back from the CEO seat at Pitch while Superlist was still early — how do you think about when a founder should hold the operating role versus hand it off?
Interface Capital is writing 300,000–500,000 euro cheques — at that entry point, what are you actually underwriting: the idea, the founder, or something else?

Avoid

Don't treat the Microsoft acquisition as a clean win or a proud exit — he has publicly questioned whether it was a mistake and will find shallow congratulations on it tone-deaf.

Make it yours