25+
Years of experience as a sparring partner for leaders and organisations.
Voices
Real people. Real impact.
What others say about working with me — in their own words. I'd rather show a few strong voices than many interchangeable ones.
Trust grows in conversation
What clients and partners say about working with me.
I only ask for recommendations once something has started to move — and only when it can be said honestly. Below, two voices I didn't write myself.
Relationship stories instead of testimonials. The people below aren't random clients — they're companions I've worked with for years, who were willing to put their experience into their own words. I'd rather have a few voices with substance than many interchangeable ones.
„Working together with Ralf is a real pleasure. Ralf supports Avance since 2008 in many various missions. Mostly in the area of shop floor management and supervisor coaching. Ralf has a vast knowledge and experience in different coaching techniques as well as a good track record in improving productivity. He is a very professional, trustworthy and integer person. I would highly recommend him."
— Thibault Heck, CEO Avance Group
„Honestly, I only wanted a small fine-tuning, a bit of coaching. But with every additional question of yours, more blurry edges came to light. In the end we mapped and ordered my entire profile. I really like the result — yes, that's actually me, I just hadn't known it that clearly. Thank you for your structured, probing questions."
Translated from German.
— Christoph Frankerl, Owner Frankerl Food
You'll find further recommendations on my LinkedIn profile: linkedin.com/in/ralfhartleb
If we have already worked together and you would be willing to share your experience in two or three sentences: I'd be glad if you sent me a note. A template is available on request — honest, short, in your own words.
In numbers
Work that can't be measured in timesheets.
20+
Countries where I have accompanied leaders — from the shop floor to top management.
500+
Leaders who have worked with me on their clarity, stance, and impact.
Not ready for a conversation yet? Stay in touch — follow me on LinkedIn or send a short email. Either works.