Our team has managed organizational change across a variety of industries and geographies, and partners with top research institutes.

Sesil Pir
CEO & Principal Consultant

Sesil Pir is a recognized industrial psychologist and human resources expert with two decades of field experience serving Fortune 100 companies globally. She is currently serving as the founder and consulting lead of SESIL PIR Consulting GmbH, focused on building more effective organizations, leaders, and teams.

  • Large-scale transformation leadership
  • Culture transformation leadership
  • Human capital strategy leadership
  • Organizational design
  • People process implementation

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European Young Leaders

Employee Engagement Awards

Employee Engagement Awards
UK & Europe 2018 Judge

Serhat Tatlı
Acting CEO & Principal Consultant

Dr. Serhat Tatlı started his professional career in Marmara University as a research assistant. He joined Tekofaks/Panasonic group of companies in 2000 and had executive positions including CEO for 11 years. Since 2011, he is the founding CEO and Chairman of Değişim Akademisi® and TeQeN® GmbH. He acted as the partner and board member of global leader organizations’ Turkey offices (i.e. WSI, Toronto ; Linkage Inc., Boston) between 2013-2017. He lectured as guest and resident professor at many universities on change management, leadership, and next generation entrepreneurship topics.

  • Large-scale change management leadership
  • Expertise in leadership development
  • Next generation entrepreneurship mentorship

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Lead Mentor
Startupbootcamp Istanbul, StartersHUB

Leadership Excellence Award
GILD (The Global Institute for Leadership Development)

The first Turkish keynote speaker, 2015

Great Successor
MU Alumni Association, 2009

Campaign of the Year, 2008

Carol Bubar
COO & Principal Consultant

After discovering a passion for process improvements and driving efficiencies, Carol focused her career around business process excellence. She began in manufacturing engineering at both Hewlett Packard and Boeing, and then moved to Microsoft. In 20+ years at Microsoft, Carol has held many senior positions including Chief of Staff and Senior Director of Operational Excellence.

  • Large-scale transformation leadership
  • Technology transformation leadership
  • Human capital strategy leadership
  • People process implementation
  • Shared services and IT effectiveness

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Above & Beyond Award
Oct 2012 – NPH USA

IT Pro Strategy Award
Apr 2007 – Microsoft

Engineering Excellence Award
Aug 2004 – Microsoft

CFO Collaboration Award
Mar 2003 – Microsoft

Ceyda Nüştekin
OD Consultant

Ceyda Nüştekin is an organizational development consultant working on HR transformation processes. Most recently acting as the C&A Sourcing Turkey (HUB) HR Manager, Ceyda has been in a variety of Human Resources roles across different industries since 2000. A few of the companies she held positions at include Gap Inc. Med Regional Office, Cadbury Kent Confectionary, Watson Wyatt (known as Willis Towers Watson) Data Services and CarrefourSA.

  • HR system transformation leadership
  • Job evaluation and benchmarking
  • Compensation design
  • People process implementation

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Training Expert
2013/2014 – C&A Turkey HUB

Peak Performer Award
2003 – Gap Inc, Turkey


We value partnerships with industry professionals who have passions aligned to our mission. We find power in the diversity of experiences and scale in the complementary skills brought to our collaboration. Here are a some of our respected partners:



The Center for Compassion and Altruism Research and Education (CCARE) at Stanford University School of Medicine was founded in 2008 with the explicit goal of promoting, supporting, and conducting rigorous scientific studies of compassion and altruistic behavior. Founded and directed by Dr. James Doty, Clinical Professor of Neurosurgery, CCARE is established within the Department of Neurosurgery. To date, CCARE has collaborated with a number of prominent neuroscientists, behavioral scientists, geneticists and biomedical researchers to closely examine the physiological and psychological correlates of compassion and altruism.

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ScienceForWork is an independent, non-profit foundation of evidence-based practitioners who want to #MakeWorkBetter. The future calls for managerial decisions that require both critical thinking and the use of the best available evidence. Too often professional experience and stakeholder interests are the only information guiding the way managers decide. Sometimes they also look at some organizational data, while only rarely they consider scientific evidence

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Hari Abburi

Consultant on Strategy, Leaders, Organization & HR

Hari’s focus is on Agility. In 2017, he articulated a definition of agility and key elements that he believes are the key to the future of businesses. His thinking, research and work are at the intersection of industries, technologies/specializations and future of work developments.

He has held executive positions at both global and regional level. His work primarily is in M&As/Integrations, Start-Ups, Restructuring. He worked with Hoerbgiger Group, Aon, Walmart JV, GE and Coca-Cola.

He is active on Universities as a faculty. He has teaching experience in full credit as well as custom courses. His teaching stints included International HR at S P Jain Singapore, Design Thinking at California Institute of Technology, Growth Strategies and Capability at Delhi School of Economics.

He is global professional having lived and worked in India, Singapore, Malaysia, Switzerland. He is now based in Los Angeles, US.

Asli Aker

Global Leadership and Organizational Development Expert

Asli Aker is a Global Leadership and Organizational Development Expert based in Seattle, WA. She has living and working experience in North America, Europe, Asia and the Middle East with a client profile from all around the world.

Asli has over 20 years of experience in consulting and international organization development. She also has deep experience in transformation work, talent management and strategy execution in both start-up and established environments.

As a coach, Asli has worked with leaders to help them take on mission critical challenges, manage complex demands and remain authentic along the way. She has 15 years of coaching experience with executives, high potentials and senior leaders.

Asli works with the whole picture in mind and helps leaders navigate the unknown, make confident decisions and deliver results. She has worked with Business Leaders, Distinguished Scientists, Engineers to help them take on new roles, manage the broader system and build effective organizations. She also has worked with up and coming talent on making strategic career decisions as well as acquiring management and leadership skills.

Paul O’Beirne

Organizational Consultant and Executive Coach

Paul is the principal of ORCA HR Solutions, founded in 2013. He previously worked for Microsoft in Global Senior Human Resource Leadership roles where he was accountable for developing global people and organizational strategy aligned to business goals. He started businesses from the ground up and built organizational blueprints and governance models for complex global matrix organizations. He has set up business in Ireland, India, China, the United Kingdom and the US.

Paul has extensive experience of leadership and team development. During his time at Microsoft, he was accountable for leadership development across global and diverse organizations. He has developed Leadership Training in the areas of Global Matrix Management, Performance Management, Management Excellence, Understanding and leading Change. He worked with the London Business School to develop a global leadership program for high-potential leaders. Throughout his career he has worked with many individuals, teams and organizations on realizing their potential and increasing their effectiveness.

Sinan Canan

Professor of Medical Neurophysiology

Co-Founder of Acik Beyin Education and Consultancy firm, Sinan Canan, Ph.D., is continuing his academic career in the Department of Psychology at Uskudar University in Istanbul as a neuroscientist. He is actively offering conferences, talks and education classes on neuroscience topics like Mind and Brain, Chaos Theory, Learning, Forms in Nature. He is the author of books “Things NoBody Ever Knows”, “My Ever Evolving Brain”, “Things to Forget“ and “Secrets of the Brain“.

He believes that “ Life is too long to be occupied by a single interest; human beings are too complex to be fulfilled by a single interest“ and continues to dedicate his time accordingly.