International Association of Coaching (IAC)

About the International Association of Coaching

The International Association of Coaching (IAC) is a global non-profit professional association founded in 2003 and dedicated to advancing coaching mastery as a professional discipline. Based in the United States and incorporated under the New Mexico Nonprofit Corporation Act, the IAC operates on a philosophically distinctive premise within the professional coaching field: that coaching excellence is most authentically measured through demonstrated mastery of coaching skills, not through the accumulation of training hours.

The IAC's foundation is inseparable from the legacy of Thomas J. Leonard, widely recognised as the founder of the modern coaching profession. Leonard led the development work that would become the IAC from June 2002 and died on February 11, 2003. The IAC was officially founded on March 11, 2003, one month after his death, as a continuation of his vision for a profession grounded in the art and mastery of coaching.

Thomas J. Leonard and the IAC's Origins

Thomas J. Leonard is credited with founding the infrastructure of the modern professional coaching profession, including the International Coaching Federation (ICF) in 1992, CoachVille, and Coach University. These training institutions and professional structures created the commercial and institutional foundation for coaching as a recognised discipline.

Leonard began developing what would become the IAC in June 2002, working to create a professional association grounded in coaching mastery rather than purely in institutional credentialing. His death at the age of 47 cut short the founding work he had begun. The IAC was established on March 11, 2003, exactly one month later, as a tribute to and continuation of his vision, with the Coaching Masteries® framework as its foundational contribution to the profession.

The Nine Coaching Masteries®

At the heart of IAC certification is the IAC Coaching Masteries®, a framework of nine core mastery areas developed over a two-year period and designed to embody universal principles of effective, ethical, and transformational coaching. The Masteries are organised around the quality of the coaching relationship and the coach's capacity to bring about meaningful client change, rather than around specific techniques or modalities.

The nine Masteries are:

1. Establishing and Maintaining a Relationship of Trust — Creating a coaching container of psychological safety, confidentiality, and mutual respect that enables genuine client openness and authentic engagement.

2. Perceiving, Affirming, and Expanding the Client's Potential — Seeing the client as inherently capable and holding a consistent, unshakeable belief in their ability to grow beyond their current limitations.

3. Engaged Listening — Listening at multiple levels simultaneously (word, emotion, energy, and silence) with complete attention and without internal agenda or anticipation of the next question.

4. Processing in the Present — Working in real time with what arises in the session rather than following a predetermined agenda; remaining fully responsive to what is most alive in the conversation at each moment.

5. Expressing — Communicating with clarity, authenticity, and appropriate directness; offering observations, intuitions, metaphors, and reflections in genuine service of the client's awareness and movement.

6. Clarifying — Supporting the client to understand themselves, their situation, and their goals with greater precision; moving from confusion and diffuse awareness to clarity and grounded direction.

7. Fulfilling Goals and Objectives — Keeping the conversation anchored in meaningful progress toward what the client truly wants; ensuring that coaching creates real-world outcomes rather than remaining at the level of insight alone.

8. Inviting Possibility — Expanding the client's sense of what is available to them; opening doors to new perspectives, choices, and futures that the client has not yet seen or considered accessible.

9. Helping the Client to Create and Use Supportive Structures — Supporting the client to design accountability frameworks, habits, practices, and environmental supports that sustain progress between sessions and beyond the coaching relationship.

Certification Pathway

IAC certification is evidence-based and skills-assessed, not hour-counted. The IAC does not require applicants to complete any specific ICF-accredited or EMCC-accredited training programme, log a set number of coaching hours, or adopt a particular coaching style. What it requires is demonstrable coaching mastery, assessed directly. The pathway runs in two steps.

Step 1: IAC-Masteries Practitioner™

The first step is a cognitive assessment. Coaches pass an online examination on the Coaching Masteries® and the IAC's legal and ethical standards with a score of at least 70 percent, then submit a Masteries Professional Development Plan (MPDP) for review. Completing both earns the IAC-Masteries Practitioner™ designation, the mandatory entry point to certification.

Step 2: Coaching Demonstration

The second step demonstrates mastery in live practice. Coaches submit recorded coaching sessions, each 30 to 45 minutes with a written English transcript, which qualified IAC assessors evaluate against the nine Masteries. One assessed recording leads to the IAC-Certified Coach™ (IAC-CC™) credential. Two assessed recordings lead to the IAC-Master Coach™ (IAC-MC™) credential, the highest level of IAC certification. Assessing real, unscripted sessions tests not just knowledge of coaching principles but their expression in actual client work.

IAC-Certified Coach™ (IAC-CC™) The core IAC credential, awarded to coaches who complete the Masteries Practitioner step and then demonstrate competence across the nine Coaching Masteries® in one assessed recording.

IAC-Master Coach™ (IAC-MC™) The highest level of IAC certification, awarded to coaches who demonstrate exceptional mastery across two assessed recordings and meet the additional requirements of the Master Coach pathway. This designation was previously known as the Master Masteries Coach (MMC).

Philosophy: Mastery Over Hours

The approximately 25% first-attempt pass rate for IAC certification reflects the rigour of mastery-based assessment rather than any design intent to limit access. Coaches who do not pass on the first attempt receive assessor feedback that maps their development against the Mastery framework, providing concrete guidance for continued growth. The certification may be re-attempted.

This demanding standard reflects the IAC's core position: that professional coaching credentials should represent real coaching excellence. A coach who has completed hundreds of training hours but cannot create transformation in coaching sessions should not receive professional certification. A coach who demonstrates deep mastery, regardless of the training pathways they have pursued, can and should be recognised for that mastery.

Who Pursues IAC Certification

IAC certification attracts coaches committed to the art and depth of coaching practice who are drawn to a credential that validates the quality of their coaching rather than the volume of their hours. The IAC is particularly relevant for coaches who have trained extensively across multiple modalities and want a credential that reflects where they actually are in their practice; coaches from non-traditional training backgrounds who have developed real mastery but may not have followed a single ICF-accredited pathway; and experienced coaches philosophically aligned with a mastery-oriented approach who find hour-counting frameworks incomplete as a measure of professional excellence.

The IAC's non-denominational position, tied to no single coaching modality, training institution, or cultural tradition, makes it a home for coaches who have developed across a wide variety of programmes and professional paths.

The IAC Community

The IAC maintains a global community of coaches committed to the ongoing development of coaching mastery. The community is characterised by a particular ethos: that coaching is an art as much as a skill, that mastery is never finally achieved and is always being deepened, and that professional development is an ongoing commitment rather than a terminal credential event.

IAC membership provides access to the global practitioner community, professional development resources, and connection with coaches who share a commitment to mastery-based coaching practice across diverse backgrounds, training traditions, and geographic locations.