Under the direction of Senior Partners Ellie Scarf and Saba Hasanie, OSC Leadership Performance has a global Associate pool of over 25 coaches across Asia, Australia, the U.S., the U.K., Europe and Africa.

An integral part of OSC Leadership Performance includes Kathy Lewis and Louise Kovacs.

Managing Director & Senior Partner
Saba is a Senior Partner and currently Managing Director of our Singapore office.  Saba has spent two decades focusing on leadership development in North America, U.K.and Asia.  
Armed with strong business acumen from her Management Consulting background in M&A, coupled with her Doctorate in Applied Neuroscience and Psychology, Saba brings a highly integrated approach to her coaching and program work.
Saba has experience across multiple industries, with a strong focus in technology, consumer packaged goods, financial & professional services, and the Singapore Government.  Certified in over 20 assessments, Saba is a life-long learner and deeply supportive of the professional development of her clients. 

Linked In

Jennifer Davis
Jennifer is a Partner of OSC Leadership Performance. Jennifer's extensive training and experience in the fields of coaching, clinical and positive psychology and corporate mindfulness, provides a unique framework for her work with leaders and their teams.
Her experience coaching leaders in North America and Asia spans over two decades and across multiple industries including healthcare, insurance, finance, technology and education.
Jennifer provides individual coaching, team coaching, leadership training and group facilitation. She specialises in working with clients to navigate complexity, transcend limiting mindsets, and thrive on challenges at the individual, team and organisational level.


Linked In

Kathy Lewis
Head of Operations and Client Engagement

Kathy is the Head of Operations and Client Management for the company. Kathy has over 17 years of experience in Finance, Marketing and Sales across industries and cultures, within New Zealand and South East Asia. With an MBA in Finance, she has led the creation and execution of sales pipelines, created potential business opportunities, and utilised research and data analysis to drive targets and results.

Linked In

Louise Kovacs
Consulting Partner

Dr. Louise Kovacs has extensive experience as a business leader, executive coach and leadership development consultant.  She provides individual coaching, team coaching, and group facilitation. Prior to joining OSC she was Managing Director of leadership performance consultancy Madston Black Singapore.

Louise has global experience coaching in a wide-range of industries and with clients from high-potential talent to C-suite. She is particularly experienced in working with clients who are navigating increasing levels of complexity and rapid change, facilitating their development to lead effectively in these challenging environments. Her business experience includes 15 years in management, sales, strategy and HR roles within the technology industry within both large corporations and start-ups (including several NASDAQ IPOs). 

Louise holds a Masters in Coaching Psychology and HRM, and Doctorate in Executive Coaching in an Era of Complexity.  She is a published author in peer-reviewed journals and regular speaker at academic and coaching conferences.  

Linked In

Nina Donovan
Head of Coaching Programmes and Engagement

Nina has extensive experience working closely with leaders and senior management teams, supporting and counselling them on their ongoing critical communications, often during times of acute pressure and change. She has a strong financial markets background from a career in investor relations, investment banking and strategic corporate communications. 

She coaches leaders on a one-to-one basis, provides team coaching and group facilitation, creating a safe reflective space to think. Nina uses her deep understanding of psychotherapeutic processes to help leaders consider how they 'show-up', their motivations and how their behaviour impacts organisations and teams.

Nina has a Master degree in Consulting and Coaching for Change from INSEAD and has pursued further study in Group Relations from a systems psychodynamic perspective.



Linked In

Our core leadership group is supported by an extensive network of coaches located in various geographies across the globe. Our associates are highly trained and experience coaches who embody our values and integrity of service and support. Depending on your geographic needs, language capabilities or style preference, we can find a great match for your requirements.