Volkswagen Financial Services
PLUG AND PLAY Insurtech Munich
KVV - Karlsruher Verkehrsverbund
digitalHUB Aachen
RACING DYNAMICS - Tuning für BMW Group Automobile
IHK Industrie- und Handelskammer Aachen
OpenProject - Open source project management software
deinSchrank GmbH - Dein Zuhause. Deine Idee.

The problem &
my solutions

The problem

Do you have the feeling that your website, online shop or app is not yet working properly to reach your prospects?

You suspect that a lot of available data could be used even better. You don’t yet know enough about where your users fail & what they think.As a result, people don’t really trust your online marketing yet – they don’t buy it.

Many of my customers have already felt the same way. Together, we can improve that.

My solutions

1. Develop a data-driven strategy

After about 1 month, you will have a data-driven strategy in your hands that has already been tested in numerous projects.

2. Understand better with data analytics & user research

After about 2 months, we have conducted a potential analysis to determine when, whereand why your visitors fail. In addition, we create within an analytics basis check a good technical setup.

3. User Experience & Conversion Optimization

We implement initial improvements to your online marketing with Conversion & UX Optimization as well as with A/B Testing after about 3-4 months.

4. build knowledge with coaching

My field-tested coaching sessions build the knowledge for a data-driven culture and continuous improvement of your online marketing sustainably in your organization.

Your data-driven marketing holistically in focus

Data-Driven or UX? Both!

Over 15 years of experience in user experience. Over 10 years of experience in Digital Analytics.

It is precisely the intersection of these two topics – Data-Driven UX – that I have specialized in.

Connected & scalable

I work together with a powerful network of experts:

SEO, SEA, A/B testing experts, software developers, B2B, psychology and branding experts, data scientists & engineers, UX designers, UX researchers, copywriters, etc.

Passionate & persistent

I have worked on these skills since the beginning of the Internet (1996).

And don’t stop until it gets really good.


Pragmatic & strong in communication

For quick success, unnecessary loops are always critically scrutinized – and cut.

I am proficient in communicating with higher management, contacts from departments, designers and programmers.


Structured & focused

My processes & structures for UX optimization have been tried and tested for years and are constantly being improved.

In this way, we always keep your central goals & added values in focus.

About me: Conversion Optimizer & Data Analyst

Since the early days of the Internet in 1996, I have been helping organizations optimize their online presences. Now I bring together a wide variety of skills, accumulated over years, for data-driven conversion & UX optimization.

With my photographic society portrait Objektiv auf unendlich I am a member of the artists organization “Berufsverband Bildender Künstler” and on Instagram.

I am also involved in the digitalHUB Aachen e.V.. I also organize the Data & AI Meetup Aachen and co-founded the Plattform Aachen e.V. association.

What customers & colleagues say

“Thomas has helped us a lot with his experience and his fast and transparent way of working

Pascal Skropke

Chief Marketing Officer, Design Bestseller / Mathes Design GmbH

“I approached Thomas back in 2005 regarding the website relaunch of my automotive tuning brand RACING DYNAMICS. The result was a modern, digital communication tool with a classic design. Since then, Thomas has always provided me with strategic advice, so that we are currently working together on the relaunch of my website. What I like is his analytical and data-driven thinking, and the transformation of that knowledge into digital measures that work. I am happy to recommend Thomas for all those companies who want to better achieve their business goals online as well.”

Michael P. Weber

Managing Director, RACING DYNAMICS Germany

What customers & colleagues say

Really good cooperation with Thomas! Expertise A++! I can only recommend it to anyone who wants to optimize and expand their Data Driven Analytics!

on Google My Business

Flo Sailer

Managing Director, Bella Ciao Shop

“For me, Thomas Gerstmann is THE expert in data-driven UX optimization. I have been working with him for several years. His analytical and strategic approach delivers real value and practical benefits that can be immediately translated into results. If you want to make your online activities user-centric, you’ve come to the right place. Highly recommended!”

on Google My Business

Thorsten Wälde

CEO, DigiMojo Ltd.

“Thomas is for me one of the most creative designers and artists in the digital world – since 2001 he has been taking care of the digital appearance of my work in the German Football League as photographer and web designer – thank you Thomas – great cinema!!! ♥”

on Google My Business

David Kadel

Mentality trainer, cabaret artist and presenter

My blog – Newest posts

Continuous Improvement – A Proven 5-Step-Process

With continuous improvement you get so much more out of your website, online-shop or app. More leads, more sales, more revenue. Or more donations. More of whatever is essential to you. In this article, I'll introduce you into my proven 5-step-process, how to do and reach this. This knowhow is based upon my 20+ years of experience. What is Continuous Improvement of websites, Apps and...

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Understand your users & data to reach your goals online. With data analytics, UX & experimentation. My goal? #ZeroHunger.

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Sounds interesting?
I am looking forward to hearing from you.
Feel free to contact me.

Tools & Technologies

– The online marketing tech stack I use to generate your data-driven growth -.

I support the digitalHUB Aachen regarding conversion optimization

Member of the
digitalHUB Aachen

Member of the We Design Network as an expert for data analytics & conversion optimization

Member of the
We Design Network

Startup Mentor at Plug and Play Insurtech Munich

Startup Mentor at
PLUG AND PLAY Insurtech Munich