LENNART

Ibuildaccess

Founder · Berlin · Ex Bayer · Ex VC

Educated across Germany · England · France

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I've spent the last decade building things across industries, countries, and disciplines. Not because I can't sit still, but because building is the fastest way I know to understand how something actually works. That instinct has taken me from fashion to pharma to venture capital to AI. Today I'm building a company at the intersection of AI and regulated industries.

I build

access

I build

access

act6.eu · Fashion Magazine

When I was 17, my biggest passion was fashion and my biggest dream was to sit at Paris Fashion Week and exchange with the designers I idolized. It seemed impossibly far away. But I learned something that has shaped everything I've built since: the best way to get into a room is to build something people in that room care about. So I founded act6. The magazine was backed by GATE 194, one of Berlin's most important high fashion stores, and has been releasing biannually ever since. Merch drops, events in Berlin and Paris, and yes, I made it to Paris Fashion Week. Many times. Fashion is no longer my primary focus, but I am still immensely proud of what we created.

Paris Fashion Week accreditation
Backed by GATE 194
Biannual print releases
Still running today

act6.eu

I build

from within

Bayer · Market Access

Before my master's degree I spent nearly four years at Bayer on the commercial side of pharma. Pricing, reimbursement, launch strategy, health technology assessments. I built pricing frameworks for cell & gene therapies and market access strategies for digital therapeutics. It gave me a deep understanding of how decisions that shape millions of lives actually get made in regulated industries. It also showed me, every single day, how much of that work is still painfully manual. I guess I still think about it today.

Pricing frameworks for cell & gene therapies
Market access for digital therapeutics
Health technology assessment strategy

Bayer

I build

a fund

Marvelous · First Employee

In my early twenties I received an incredible opportunity: to build a climate deep tech VC fund from scratch together with three General Partners, from day zero. I was the first employee. I talked to LPs and founders alike, built fund operations, sourced deals, and evaluated companies across sectors. Sitting across the table from dozens of early stage teams taught me a lot about what actually makes a company work. And more importantly, what doesn't. It also made one thing very clear: I wanted to be on the other side of that table.

First employee from day zero
Climate deep tech focus
Talked to LPs and founders across sectors

Marvelous

I build

a factory

ProteinDistillery · Finance Lead

At ProteinDistillery I owned everything finance. I managed multimillion euro debt contracts, raised equity rounds, and built the financing that ultimately led to a First of a Kind production facility. I also did the financial planning, controlling, accounting, year end reports, investor reportings, and unit economics calculations. It was an incredible education in what it actually takes to run startup finance end to end. Seeing a FOAK facility go from spreadsheet to physical infrastructure is something I'm deeply proud of. It's also what made me realize that the technologies shaping our future are held back not by science, but by how hard it is to finance and scale them. I wanted to change that.

Built financing for FOAK production facility
Multimillion euro debt contracts
Full stack startup finance

ProteinDistillery

I build

companies

Lelia · Founded, Built, Shut Down

I built Lelia because I strongly believe that the future is hardware driven. Semiconductors, data centers, renewables, space, robotics. These industries are not financed through equity but oftentimes through debt. So we tried to crack open European private credit, an industry still running on spreadsheets and email. We shipped a live AI native platform, signed paying customers, and ran deep discovery across the market. After months of rigorous validation we came to the conclusion that the pain point wasn't deep enough and the market wasn't large enough to build the kind of company we wanted to build. So we shut it down. We don't regret a single day of it. I wrote down seven lessons from the experience and they now guide every decision I make.

Live platform with paying customers
Hardware driven future thesis
Shut down with discipline, not defeat

I build

for fun

Side Projects · Always

Along my journey I've always enjoyed building software on the side. Whether that's a Chrome widget that transforms my LinkedIn feed into something I actually enjoy reading, or a Duolingo style app for vibe coding that helped me understand what my beloved Claude is actually doing under the hood. I've always loved the process of building something simply because I need it.

I build

what's next

EXIST Grant · Building Again

With my trusted co founders Julia and Rouven I'm building something new at the intersection of AI and regulated industries. We're backed by Germany's premier startup grant with 12 months of runway, a sharp thesis, and everything we've learned from the last few years. More soon.

EXIST grant backed
Team of three
AI for regulated industries