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The Home of Coaching Masteries

Our measure of coaching practice is the global standard for Masterful Coaching.

Part of what makes the IAC® different from other coaching organizations is the way we assess coaching mastery, and our belief that attending coach training or graduating from any specific program is not sufficient evidence that a coach can, in fact, coach.

The IAC® endorses the truth that becoming a coach is a transformative process, therefore it is only right that we honor prior training, education and life experience, and measure mastery via demonstration of skill.


The Legacy of Thomas Leonard

Become an IAC certified coach and be recognised as a Masterful Coach


Start Your Journey

Expand your Path to Coaching Excellence Through The IAC 9 Coaching Masteries®


Our Vision is to advance the profession of coaching to the highest standards of universal excellence.

The hallmark of IAC coaching philosophy is to respond and evolve to the needs of professional coaching. We believe that an IAC certified coach focuses on the distinct qualities of masterful coaching and has the ability to change the world in positive, powerful and sustainable ways. The global, diverse community of IAC coaches are committed to the IAC Values and  they passionately work together to collaborate and co-create the future of coaching.

Join us and positively change the world ONE conversation at a time.

The IAC® certification process is an ambitious and thorough one.That is why companies and clients know when they hire an IAC Certified Masteries Coach® or Master Masteries Coach®, the coach has been rigorously challenged and has proven themselves at a stellar level. This tells the client they can have confidence they are hiring coaches of the highest caliber, with a valid measure of assurance they will receive quality coaching.


“I found the IAC certification journey both developmental and enriching. The information provided was detailed and helpful, and the test followed by being coached on my personalised development plan was challenging and supportive. Studying and certifying in the use of the Masteries has deepened and extended my knowledge and practice.”
Dr Sarah Howling
Dr Sarah HowlingPrincipal, Secondary Campus, The Alice Smith School
Masteries Practitioner, IAC – Malaysia

“Being part of the International Association of Coaching has meant being in an environment of growth and excellence. From this platform of continuous learning and living the masters of coaching personal and professional transformation occurs in a space of trust and transparency. It is definitely an ecosystem of development.”
Guilian G. Carlotti
Guilian G. CarlottiExecutive coach and life coach
Certified Masteries Coach, IAC – Chile

“My journey to coaching began in 2006 at the height of my career as a Human Resources leader. I joined the IAC in 2007 and completed the certification in 2009. I have found that the IAC Coaching Masteries are foundationally the most critical competencies and skills needed to be an effective coach. The continued practice, evaluation and feedback process the IAC supports offers the aspiring certified coach the opportunity to eventually become unconsciously competent in using the Coaching Masteries.”
Kathi Crawford, SPHR, MMC (IAC)
Kathi Crawford, SPHR, MMC (IAC)CEO, People Possibilities LLC
Master Masteries Coach, IAC – USA

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