Selected clients

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Our achievements

150

Digital products launched

150

Digital products launched

87%

Average client retention rate

87%

Average client retention rate

4

Teams working globally

$1.2B

Client revenue growth

Case Study

o2 Brand Refresh: From Customer-First Strategy to Brand Design Rollout

Fashionable professional using a smartphone in an urban setting, representing a modern mobile brand experience.

Case Study

o2 Brand Refresh: From Customer-First Strategy to Brand Design Rollout

Fashionable professional using a smartphone in an urban setting, representing a modern mobile brand experience.

Case Study

o2 Brand Refresh: From Customer-First Strategy to Brand Design Rollout

Fashionable professional using a smartphone in an urban setting, representing a modern mobile brand experience.

Customer reviews

Hear from our clients and see why Andersen is rated 4.97/5 on Clutch.co

  • For more than a decade, Chantal has been a trusted partner, always providing the right impulse at the right time and adapting seamlessly to both TWK’s needs and my own. This partnership has moved us forward on both a personal and business level—and is the perfect foundation for the next ten, if not twenty, years.

    Dr. Cedric Bartelt

    Head of Marketing & Human Relation

  • “Chantal’s brand design expertise gave our o2 team a fresh perspective on how to optimize our brand management process. She led complex brand projects with exceptional clarity, communication and professionalism, and her precision in execution made our brand relaunch a success.”

    Caroline Girardet

    Senior Brand Manager, Telefónica Germany

  • “Working with Chantal was smooth and efficient from the start. Her guidance sharpened our positioning and brought greater consistency to our visual identity. I especially valued her ability to simplify complex ideas. She was an excellent partner to work with, and my team and I highly recommend her.”

    Bianca Hörner

    Head of Finance, Ourvita Germany

  • “Chantal brings deep brand expertise and a strong understanding of corporate environments. I highly recommend working with her.”

    Anastasia Liapis

    Anastasia Liapis

  • “Chantal brings deep brand expertise and a strong understanding of corporate environments. I highly recommend working with her.”

    Anastasia Liapis

    Global Head of Innovation, HP Health Solutions

  • “Working with Chantal was smooth and efficient from the start. Her guidance sharpened our positioning and brought greater consistency to our visual identity. I especially valued her ability to simplify complex ideas. She was an excellent partner to work with, and my team and I highly recommend her.”

    Bianca Hörner

    Head of Finance, Ourvita Germany

  • “Chantal’s brand design expertise gave our o2 team a fresh perspective on how to optimize our brand management process. She led complex brand projects with exceptional clarity, communication and professionalism, and her precision in execution made our brand relaunch a success.”

    Caroline Girardet

    Senior Brand Manager, Telefónica Germany

  • For more than a decade, Chantal has been a trusted partner, always providing the right impulse at the right time and adapting seamlessly to both TWK’s needs and my own. This partnership has moved us forward on both a personal and business level—and is the perfect foundation for the next ten, if not twenty, years.

    Dr. Cedric Bartelt

    Head of Marketing & Human Relation