Florian Heinemann

Who they are

Florian Heinemann is Founding Partner at Project A Ventures — co-founded JustBooks in 1999 (later acquired by Amazon as AbeBooks) and antibodies-online.com before building one of Europe's most active early-stage VC firms from scratch in 2012.

Person

Florian holds a Ph.D. in Innovation Management and Entrepreneurship from RWTH Aachen, a Master's from WHU – Otto Beisheim School of Management, and spent time as a Visiting Scholar at Wharton — an unusually academic foundation for someone who has been building companies since 1999. His first venture was JustBooks, an online book marketplace co-founded that year and eventually acquired by Amazon as AbeBooks. After that, he moved through the early German internet scene — Jamba! and iLove — then into Rocket Internet as Managing Director, where he got a repeatable playbook for scaling consumer internet companies fast. He co-founded Project A in April 2012 when the Berlin startup ecosystem was still finding its footing, and he co-founded antibodies-online.com, an online marketplace for life science reagents, along the way. The through-line is serial company-building, always operator-first: every move before Project A was about running something, not just backing it. He sits on the board of Trade Republic, one of Europe's most prominent fintech companies, and his content themes run toward marketing, CRM, and business intelligence — the operational levers he's been pulling since the Rocket Internet days. Possibly — he keeps a personal site at florianheinemann.com, though public writing there appears limited.

Company

Project A's most recent major move was closing Fund V in June 2025 at €325 million, bringing total assets under management to €1.2 billion. The new fund extended the firm's investment scope beyond its traditional AI, fintech, and software focus to include battlefield robotics and AI-powered defense applications — areas historically underserved by European VC. Project A's model is distinctive: it pairs capital with over 100 in-house operational experts across product, marketing, and data, acting as an embedded partner rather than a passive check-writer. Founded in Berlin in 2012, it has built up to one of Europe's most active early-stage investor positions over that period.

Market

Project A competes in early-stage European VC against firms including Lightspeed, Battery, and a16z — global platforms with significantly larger balance sheets. The firm differentiates on operational depth rather than fund size. The broader VC environment is being shaped by AI dominance (roughly 79% of AI funding in 2025 went to U.S.-based companies), rising geopolitical pressure toward infrastructure sovereignty and defense-edge technologies, and a higher bar for non-AI companies at equivalent metrics.

Network

No direct network edges are available from the claims. Florian's most prominent named board relationship is with Trade Republic, one of Europe's leading fintech companies. His co-founding history at Project A and prior Rocket Internet tenure suggest deep ties across the Berlin and European startup ecosystem, but specific names aren't surfaced in the available data.

Trade Republic (board)· Board Member (company)

How they likely show up

Founded or co-founded four companies (JustBooks, antibodies-online.com, Project A, and operating roles pre-VC) → operator instinct runs deep; he'll engage on execution details, not just strategic framing.
Joined Project A at founding stage in April 2012 and has run it for 13+ years → thinks in decade-long arcs; unlikely to be moved by short-term market noise.
Rocket Internet Managing Director background → comfortable with high operational tempo, repeatable playbooks, and rapid scaling under resource constraints.
Ph.D. in Innovation Management plus Wharton Visiting Scholar → analytical by default; expect framework-level thinking alongside practical instinct.
Content themes cluster around marketing, CRM, and business intelligence → his mental model for a company's health is probably data-driven and customer-metric-first.
Board seat at Trade Republic alongside a portfolio of early-stage bets → operates across multiple company stages simultaneously, likely good at context-switching between 0-to-1 and scaled problems.

Conversation tips

→ Come with a specific operational question — he has a Ph.D., Rocket Internet reps, and 13 years of embedded VC experience; surface-level strategy talk won't hold his attention.
→ Reference the Fund V expansion into defense and robotics — it's a deliberate thesis shift and he'll have strong views on why European VC needs to go there.
→ If you have data on customer acquisition, retention, or unit economics, lead with it — his published content themes are marketing, CRM, and business intelligence, which signals what he tracks first.
→ Ask about JustBooks or antibodies-online.com if you want to understand how he thinks about founding moments — both are real founder experiences, not VC-adjacent ones.
→ Don't treat him as a generalist investor — he built the operational model at Project A (100+ in-house experts) deliberately; he has strong opinions about how VC support should actually work.

Toolbox

Openers

Open on the Fund V defense pivot — Project A expanding into battlefield robotics and AI-powered defense is a pointed bet for a Berlin-based early-stage firm, and he made it deliberately in June 2025.
Bring up JustBooks — co-founding an online book marketplace in 1999 that Amazon eventually acquired as AbeBooks is a founding story that predates almost every Berlin VC by a decade; it's a natural anchor for understanding how he got here.
Reference the Project A operational model — 100+ in-house experts embedded with portfolio companies is an unusual structural choice; asking what it took to build that internally is a specific, informed opener.

Discovery questions

When you expanded Fund V into battlefield robotics and defense, what changed in your diligence process — and how do you think about the talent pool for those companies in Europe versus the U.S.?
Project A embeds operational experts across product, marketing, and data — where do founders push back on that model, and how do you handle it when they do?
You've been a founder (JustBooks, antibodies-online.com) and an operator (Rocket Internet, Jamba!) before becoming a VC — how does that change what you look for in a founding team versus what a purely financial investor sees?

Avoid

Don't come in with generic European VC market observations — he has been building in Berlin since 1999 and will know the landscape better than any briefing doc you've read.

Make it yours