About Us | Sentia Consulting

Our Founders

Zeynep Okumuş

Founder · Leadership Development and Team Dynamics Consultant

Zeynep Okumuş is a leadership development and team performance consultant who helps organizations strengthen leadership capacity, build effective teams and achieve sustainable commercial results.

She combines over 30 years of experience in sales, marketing and business development across banking and logistics with coaching-based development programs designed around each organization's own culture and priorities.

A graduate of Ankara University Faculty of Political Sciences, Department of Business Administration, she completed the Ziraat Bank Banking School with honours. At Garanti Bank she worked in Retail Sales and Marketing, managing and restructuring field sales teams, and gained experience in business development and product development. At MNG Kargo she founded the Retail Sales and Marketing department as its manager, led regional and head-office sales teams, and also served as Trade Marketing Manager.

She holds the titles of professional coach and team coach, having completed the ICF-approved Adler Central Europe Coaching Programme and the Team and Relationship Dynamics Coaching Programme. Her other qualifications include trainer certifications in Creative Drama, NLP Techniques, Educational Coaching, Transactional Analysis and David Covey's Trapologist at Work.

She designs and delivers executive and team coaching, mentoring, leadership development and competency-based programmes. She has designed and run programmes for organisations such as TAV Technologies, Anadolu Sigorta, Dagi, Pronet, TEB, Danone, Hilton, Constantia Flexibles, Asaş, Sunar Yatırım and Kieway Contracting LLC. She speaks English fluently and Italian at an intermediate level.

Areas of expertise

Nehir Öztürk Yalçın

Co-Founder · Corporate Wellbeing Consultant

Nehir Öztürk Yalçın is a corporate wellbeing and development consultant who helps organisations build science-based approaches to sustainable performance, wellbeing and behaviour change.

A graduate of TED Ankara College, Öztürk Yalçın completed the Psychology Double Major Programme at Başkent University as the top student and took her academic background to an international level with a master's degree in Health Sciences at the Technical University of Munich. Her undergraduate and graduate education in Nutrition and Dietetics underpins her multidisciplinary approach.

At Continental AG's headquarters in Germany she worked on global occupational health and wellbeing programmes covering more than 200,000 employees, contributing to psychosocial risk work, employee assistance programmes, content grounded in stress, motivation and behavioural science, and the development of international training programmes.

Today she brings psychology and health sciences together to deliver solutions in stress and energy management, psychological safety, motivation, resilience, healthy working culture and behaviour change. She aims to create measurable and lasting impact by translating scientific research into everyday work practice.

She works with an international perspective and delivers her programmes in Turkish and English. She is active in social impact and community service at the Evrensel Rotary Club. She speaks English at an advanced level, German at an intermediate level and Dutch at a basic level.

Areas of expertise

Our Story

Sentia takes its name from the Latin root sentire: to feel, to notice, to perceive.

Sentia takes its name from the Latin root sentire, meaning “to feel, to notice, to perceive.” This single word carries the essence of our work.

With this belief, we guide individuals, teams and organizations on development journeys that begin with awareness. We believe high performance lasts only where people feel well.

We are professionals from different academic and sector backgrounds. We bring two disciplines together under one roof: leadership experience matured in the field, and research-based knowledge of people and wellbeing.

Zeynep Okumuş and Nehir Öztürk Yalçın at a leadership development program — In-house training · “Leadership Development Program”

What We Believe

Vision, Mission & Values

Our Vision

We believe lasting development and a culture of meaning are built where people are well. We want to lead the way to a working world managed with awareness, where performance grows without consuming people.

Our Mission

To help organizations reach ambitious goals by strengthening their people rather than depleting them, making performance lasting and meaningful by uniting leadership and human energy in a single development experience.

Our Values

Communication
Trust
Sincerity
Wholeness
Care

Our Approach

A four-step development cycle

We bring every program to life through the same disciplined cycle; we don't leave you alone at the hardest step, or after it.

01 Sense Root Cause Analysis With systematic tools we grasp the organization's culture and its real development priorities in depth.
02 Design Bespoke Architecture We do not offer off-the-shelf solutions. Grounded in established leadership methodologies, we build a program architecture that grows out of the organization's own reality.
03 Transform Experiential Practice Through hands-on, experience-led processes we turn learning into lasting behavioral change.
04 Sustain Making It Last Structured follow-up, coaching and reinforcement tools secure the gains; we build the systems that support corporate transformation.

Zeynep Okumuş at a “Transformative Dialogues Through Feedback and Feedforward” training

Nehir Öztürk Yalçın at a “Mindful Stress Management” session