About Us

FREE GUIDELINE: Why Developing a Future-Fit Mindset is Critical for Your Leadership Growth.

Since 2010, Mantle has worked with industry-leading organisations to give their people the leadership edge.

Our team is made up of experienced leadership development specialists, all passionate about creating leadership mindsets and empowering individuals to thrive in today’s ever changing working world.

What we believe in

being real

Focusing on practical solutions that work


Making a difference


Working as partners and making it easy


Continuing to learn and adapt


Being tuned in, responsive and at the top of our game

The Mantle team

Graham Hart

Graham has twenty five years business experience working in operations, human resources and management consulting roles.

Denise Carter

Denise has over 30 years of experience in leading and developing people, in a career ranging from an Officer in the armed forces to Senior Group Learning and Development roles in some of the UK and New Zealand’s largest organisations.

Ruth Donde

Ruth is passionate about leadership and the impact of personal & professional development on individuals, relationships and organisational outcomes.

Anton Ashcroft

Tertiary qualified in psychology and passionate about fostering great leadership , Anton has many years of experience facilitating both individual leaders and groups through the process of change personal development and conflict resolution.

Lettie Dalton

A highly experienced, commercially astute and passionate Facilitator, Coach and Trainer, with a proven background of working with corporate organisations worldwide to empower, motivate and engage people.

Sharon Kempthorn

Highly motivated and results-oriented senior human resources professional with experience in retail, professional services, private healthcare and finance sectors.

Joanne Ostler

Better career, better life, better world. That’s my why. I want to help people create better careers, lives, and a better world too. I offer clients a safe place to be really honest. Sounds simple, and it is, but it is also almost impossible to do on your own.

Nikki Hommes

Nikki has a Masters of Business Administration (MBA) Degree, specialising in Coaching and Mentoring and is a qualified Life, Executive and Workplace coach.  In addition to being an NLP Practioner, she is a Master TetraMap facilitator, Talent Dynamic Flow Consultant & Ignition! Youth Coach.

Rochelle Trail

Rochelle has a passion for knowledge acquisition, understanding human behaviour and people development.

She has an engaging style in imparting information and enjoys making it relevant and applicable to the audience.

She is also passionate about staying up to date with current research in the field of leadership and personal development.

With qualifications in natural health, nutrition and psychology, she takes a holistic perspective when working with clients, which encompasses all aspects of their wellbeing.

Jon Dunning

Jon is an experienced people leader, facilitator and coach. He has a proven ability to engage, Jon seeks to develop and maximise individuals and high performance teams. Whether in a small team environment or a large, complex and diverse organisation, Jon looks for opportunities to translate the strategic into operational, meet customer demands and stakeholder needs while developing partnerships for sustainable outcomes.

Keen to talk?
We’re ready to listen

Get in touch for a no obligation initial consult.

Get in touch today

021 833 841
Call or message one of the team
or leave us a message.