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Dennis NennerDN

Dennis Nenner

Sales Coach & Leadership Trainer | Sales

€880/day
Hamburg, DE
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Dennis

I am a Sales Coach, Leadership Trainer, and Keynote Speaker.


Over 20 years of sales expertise. 14 years of industry knowledge in personnel services. 12 years of entrepreneurship.

I support companies in strengthening their sales and leadership structures, developing teams, and achieving real results – practical, clear, and immediately implementable.

As a founder and former managing director, I have led over 100 employees and trained and further educated managers. I have built departments, created systems, broken records, and received awards. For over 12 years, I built and successfully managed my own personnel service company – with scaling teams that I developed from scratch.

Today, I combine this operational depth with coaching, training, and leadership know-how. My goal today: to pass on my knowledge – to people who want to make a difference!

I am booked when companies:
  • want to strengthen their sales teams
  • want to bring managers to the next level
  • want to develop communication, performance & mindset
  • need to practically improve recruiting and sales processes
  • are looking for external support for workshops, training, or 1:1 coaching

My style is direct, motivating, clearly structured – with a focus on implementation rather than PowerPoint. I work with individuals, teams, and managers, bringing the energy, structure, and experience that makes rapid progress possible.

Focus Areas:

Sales Coaching · Sales Training · Leadership Development · Communication · Recruiting · Team Performance · KPI-based Management · Conflict & Feedback Culture · Onboarding & Team Development
  • German

    Native or bilingual

Can work on-site
Hamburg (up to 50km)

Experience

  • Werbemitteldienstleister
    Sales Coach
    DIGITAL AND IT
    April 2026 - Today (3 months)
    Hamburg, Germany
    I coach two sales organizations throughout their entire sales process – from the initial contact to the closing. We look at where conversations falter, where handovers get stuck, and where there is no clear procedure between gut feeling and method. From this, we develop routines that are repeatable without seeming rigid. For me, sales is less about talent and more about craftsmanship – and coaching is the space where this craft is learned and refined.
    Sales Coaching Workshops
  • Dennis Nenner
    Coach | Trainer | Speaker
    EDUCATION AND E-LEARNING
    June 2025 - Today (1 year and 1 month)
    Hamburg, Germany

    Over 20 years of sales expertise. 14 years of industry knowledge. 12 years of entrepreneurship.

    Entrepreneur. Salesperson. Coach.

    As a founder and former managing director, I have led over 100 employees and trained and further educated managers. I have built departments, created systems, broken records, and received awards. For over 12 years, I built and successfully managed my own personnel service company – with scaling teams that I developed from scratch.

    My goal today: to pass on my knowledge – to people who want to make a difference!
    Coaching Sales Sales Strategy Sales Development Training
  • ENITAS Deutschland GmbH
    Founder & Managing Director
    HUMAN RESOURCES
    June 2013 - May 2025 (11 years and 11 months)
    Hamburg, Germany
    I built ENITAS Deutschland GmbH from the ground up – from the initial idea to being recognized as one of the fastest-growing companies in Europe (FT1000, Financial Times). As a shareholder, I significantly influenced the strategic direction, created structures, and scaled teams.

    After almost a decade, I transferred my shares to my own holding company and am now only passively involved through my investment company. I handed over operational management in May 2025.
    Management corporate-strategy Sales growth-strategy

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Education

  • Business Administration
    University of Applied Sciences (VWA)
    2013
    Schwerpunkt Marketing & Vertrieb. Berufsbegleitendes Studium mit Vorlesungen an drei Abenden pro Woche neben einer Vollzeitbeschäftigung. Abschlussarbeit mit Note 1,7 erfolgreich abgeschlossen. Parallel dazu habe ich mein Unternehmen gegründet, das schnell wuchs. Studium ohne Abschluss.

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