50M Revenue with B2B Phone Rental and Device Management | Self-Management & Dealing with Fear as a Founder | Leadership Team Design in Hypergrowth | The Everphone Flywheel - Jan Dzulko, Everphone

About this episode

Jan Dzulko has achieved impressive growth with Everphone: over 200 million dollars in debt and investor capital raised, more than 50 million euros in revenue, and over 300,000 devices in circulation across Germany and the USA. But behind these numbers lie complex challenges that every fast-growing founder should understand.

The Complexity of Everphone's Business Model

B2B phone rental and device management sounds simple, but it's anything but that. Everphone doesn't just rent smartphones to companies – they handle complete device lifecycle management. From procurement and configuration to return and recycling – a logistically demanding undertaking that requires precise planning.

The scale effects only become apparent once you reach a certain size, when the fixed costs of infrastructure can be spread across a sufficiently large number of devices. This is exactly what makes the business model attractive to investors, but it also requires continuous investment in growth.

Managing Growth During Hypergrowth

One of the biggest challenges during rapid growth is capacity planning. Everphone must continuously predict how many devices they'll need in the coming months, which teams need expansion, and where bottlenecks might emerge.

This isn't just about hardware, but primarily about people. Finding the right balance between hiring too fast and too slow, while maintaining company culture, is an art form.

Leadership Challenges in Growth

For Jan as a founder, constant growth also means personal challenges. The CEO role is constantly evolving – what worked yesterday might not be sufficient tomorrow. The question of whether you're up to the demands as a first-time manager comes up regularly.

Particularly interesting is how to deal with fear and self-doubt. As a founder, you often face decisions that can fundamentally impact the company. The ability to remain capable of action despite uncertainty while leading authentically is crucial.

International Expansion: Learnings from the USA

The US expansion after 1.5 years offers valuable insights. The American market works differently than the German one – different customer expectations, different regulatory frameworks, different competitive landscape. What works in Germany can't be transferred one-to-one.

The challenge lies in adapting the proven business model to local conditions without diluting core strengths. At the same time, teams across different time zones must be coordinated while maintaining a unified company culture.

Focus on Unit Economics and Profitability

Despite strong growth, Everphone maintains focus on healthy unit economics. Every rented device must be profitable long-term. This transparency with numbers and clear focus on sustainable profitability distinguishes successful scale-ups from companies that pursue growth at any cost.

Balancing growth investments with profitability requires constant adjustment. Too conservative, and you lose market share. Too aggressive, and unit economics suffer.

Learnings for Other Founders

Jan's experiences show that hypergrowth isn't automatic. It requires systematic approaches to capacity planning, conscious decisions in team building, and the ability to continuously develop yourself.

Key insights: maintain focus on the numbers, build teams consciously, don't underestimate international expansion, and never stop learning as a founder. Everphone demonstrates how a complex business idea becomes a scalable company – when execution and strategy align.