20 years of building products and companies. 100+ startups coached across my career, 50+ of them at Startup Burgenland, the accelerator I built. 12 products shipped to 50+ countries and sold. Three books published. One method behind all of it: Subtract to Ship.
The Method
The Subtraction Audit
What you get
A written list of what to stop, what to keep and what to finish, ranked by what it frees up. Your team reads it in twenty minutes.
How it runs
Interviews with the people who do the work, a review of the numbers, one working day with the leadership team, and the plan typically five working days later.
How fast
Two weeks from first call to delivered plan. Thirty days later we meet once more to check what actually got cut. That meeting is included.
If it doesn't fit
The first call is free and I tell you on that call whether the audit will find anything. If I don't think it will, I say so and we stop there.
What I've Built
A complete business methodology: Validate, Build, Grow, Scale. 141 named frameworks. The MDR extension, written with Tibor Zechmeister, reached #1 in three Amazon categories in September 2026.
Performance magic methodology in two volumes, 72 chapters, built on 32 foundational texts. Proof that Subtract to Ship works in any domain. Both volumes out, 5.0 average on Amazon.
Designed and built the accelerator from zero as Programme Manager and Startup Coach. 50+ portfolio startups, EUR 10.7M in portfolio funding and capitalisation, AplusB member since 2022.
Premium products for the professional performance industry, co-founded with Adam Wilber. 4.9-star average from verified buyers. We sold the product business in 2024.
What People Say
Felix is a rare kind of innovator — someone who doesn't just shape ideas but ensures they deliver tangible results. In our collaboration, I was struck by his ability to structure complex topics, guide stakeholders through change, and execute with clarity and conviction. Felix leads with intention, builds trust across teams, and keeps progress measurable and purposeful.
Felix is one of the sharpest innovation strategists I've worked with – a rare mix of vision, structure, and speed. His ability to identify needs, activate the right people, and push ventures to the next level is simply outstanding.
He doesn't just talk innovation — he implements it. He aligns teams, simplifies challenges, and always keeps his eye on outcomes that create real business value.
Felix was a crucial part of VitaBlick's early growth story. He challenged us to validate B2B vs. B2C early on, helped prepare and successfully close our investment round, and guided our market expansion into Germany and Switzerland.
Trusted By
Twenty minutes. You describe the business, I tell you whether an audit would find anything worth cutting. If not, you've lost twenty minutes.