About us.

StackFuel is one of the leading online training providers in data literacy, data science and AI.

Find out who we are and how we work.

Everything at a glance

Get to know our teams.

Stefan Berntheisel

CTO & Co-Founder

Stefan is responsible for our learning platform and the Product, Operations and Finance departments.

Leo Marose

CEO & Co-Founder

Leo is responsible for Sales, Marketing, Communications and People & Culture.

Alexander Eckrot

Strategic Operations Manager (AI & BI)

Alex manages data-based AI and BI initiatives and provides decision-relevant analyses for the further development of our products.

Jonathan Martens

Head of Product

Our product team develops holistic and practical learning approaches that focus on the needs of our customers and participants.

Tareq Damoon-Lux

Head of Creative & Brand

The creative team gives our company and our products an unmistakable identity with the highest recognition value.

Natalia Dark

Head of Growth

Our growth team ensures maximum relevance and attention among potential target groups with specific marketing of our products.

Nefeli Perifanou

Head of Mentoring & Administration & Career Success

Our Operations team combines administration, mentoring and career services to offer our participants and customers a smooth learning process.

Maximilian Barth

Head of Sales

Our sales team is responsible for acquiring new customers, expanding existing customer relationships and partnerships.

Tom Zer

Head of Finance

Our finance team ensures that all figures are correct - from budget planning to controlling and reporting - and thus creates the basis for sound business decisions.

Alexa Beckett

Team Lead People & Culture

The People & Culture Team takes care of the entire employee lifecycle. At the same time, it advises the Leadership Team on all employee-related topics.

Theresa Kumpitsch

Team Lead Educational Content

The content team develops practical training courses with high didactic standards that prepare participants specifically for roles in the data and AI environment.

Jörg Burdanowitz

Mentoring Team Lead

Our mentoring team provides our participants with professional support through webinars and live sessions and is always on hand to answer any questions they may have.

Moritz Krog

Team Lead Back End & DevOps

Our Back End & DevOps team ensures that everything runs smoothly behind our IT infrastructure and learning platform - from data processing to smooth operation in the background.

Gordon Tschirner

Engineering Team Lead

Our front-end team ensures an outstanding learning experience with a user-friendly and intuitive learning environment interface.

Elisa Simonjan

Career Success Manager

Elisa supports participants in the Career Service with individual coaching and practical preparation to prepare them specifically for their job search and the application process.

Annika Hofer

Team Lead Administration Operations

Our admin team supports our customers and participants in all organizational matters and is an integral part of our training courses and associated services.

This is our story.

2026

Multiverse acquires StackFuel: Together we are strengthening the qualification of specialists for the AI era and accelerating AI upskilling throughout Germany.

2025

Growth of over 70 percent. Expansion of QCG-sponsored training to B2B customers. Integration of AI training into the training portfolio.

2024

Expansion of activities through a new offer for SMEs through the Qualification Opportunities Act (QCG).

2023

Expansion of corporate partnerships, particularly in the transformation and restructuring process.

2022

Training milestone of over 5,000 graduates is reached.

2021

Receipt of BMBF funding for the "Toolbox Datenkompetenz" and "Coding Labs" projects. Receipt of the E-Learning Award with Deutsche Bahn.

2020

Development of a new offer for the qualification of jobseekers in data careers, certified by the Federal Employment Agency (AZAV).

2019

Start of cooperation with Deutsche Bahn and start of a sales and marketing partnership with Haufe Akademie.

2018

The StackFuel team grows and wins its first B2B customers such as Telefónica, Mercedes and BMW. Receipt of the HR Innovation Award.

2017

Foundation of StackFuel GmbH. Received several awards, including the Digital Innovation Founder Competition and the LEARNTEC Startup Award.

2016

Launch of the EXIST-funded "dataX Academy" project to establish a data academy for companies.

These values are our daily compass.

We love learning.

We believe in the principle of lifelong learning and continuous personal development. We see external and internal feedback as the basis for becoming a little better every day.

We are data nerds.

Data is our passion. We work every day to establish data-driven thinking and action in companies. We advocate an active data culture and identify potential based on data.

We want solutions, not problems.

Whether you're an intern or a manager, at StackFuel we take a proactive approach to challenges. We always focus on the solution, not the problem.

We are colorful.

At StackFuel, we include everyone. Our diverse personalities and skill sets are what make our team strong and successful. We enjoy developing sustainable training and services together.

We strive for the highest quality.

The quality of our products is close to our hearts. Our trainings always have the claim to be the best on the market. We put our customers at the center of everything we do.

We listen.

We create a culture of discussion in which everyone can stand up for their opinion and be heard at all times. We act openly and honestly with each other and treat other opinions respectfully and constructively.

Become part of the StackFuel team.

Discover your career opportunities at StackFuel. Help shape our success story as part of the StackFuel team - together with the brightest minds and experts.