About Us
MentalFit Solutions brings together an interdisciplinary team with expertise in communication, coaching, psychology, forestry and forest bathing. Together, we help companies strengthen resilience, collaboration and mental health, combining scientific insights with many years of practical experience.
Four experts. One shared goal: strengthening mental health and collaboration in the workplace.

Claudia Rheinboldt
Communication Consultant | Coach | Resilience Trainer
Claudia Rheinboldt has been supporting companies through change for over 20 years. She combines communication, coaching and nature-based approaches to create effective programs for leaders and teams.
Qualifications
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MAS Business Communications
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Value-oriented Systemic Coach (St. Gallen Model®)
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CAS Forest, Landscape & Nature
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Certified Wellness Trainer and Coach for Self-Management & Resilience
Website > harmonize.ch

Karin Hilfiker
Forestry engineer | Forest expert
Karin Hilfiker combines expertise in forestry with many years of experience in consulting, leadership and organizational development. Using analogies from nature, she opens up new perspectives and supports companies through change and development.
Qualifications
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Dipl. forestry engineer ETH/SIA
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MAS Transcultural Communication and Leadership
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Extensive international consulting experience in forestry
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Author
Website > waldcoaching.ch

Marlène Fretz
Psychological Counselor | Nature & Health Coach
Marlène Fretz combines psychological counseling with many years of experience in healthcare. Using a resource-oriented approach, she supports individuals and teams through change and in strengthening their mental health.
Qualifications
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Psychological Counselor
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Couples and Family Therapist
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Registered Nurse (HF)
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Certified Nature & Health Coach
Website > wald-raum.ch

Sandra Zimmermann
Shinrin-Yoku Instructor | Relaxation Trainer
Sandra Zimmermann guides individuals and teams through nature-based experiences focused on calm, presence and mindfulness. Her approach creates space to slow down, recharge and strengthen personal resilience.
Qualifications
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Certified Shinrin-Yoku/Forest Bathing Instructor
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Relaxation Trainer
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Certified Dental Hygienist (HF)
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Painter and Photographer
Website > waldinspiration.ch
Let’s Connect
Would you like to get to know us or learn more about our programs?