Board of Governors

Photo Shape Editor: https://www.tuxpi.com/photo-effects/shape-tool

Ingrid Rosenberg

President

IAC-Certified Coach (IAC-CC)
BOG Term:
June 2023 – May 2029
President term:
2026 – 2027

Guilian Carlotti

Past President

IAC-Certified Coach (IAC-CC)
BOG Term:
February 2020 – January 2029
Past President term:
2026

Ritu

Ritu Mathur

Vice President

IAC-Masteries Practitioner
BOG Term:
July 2023 – June 2029
Vice President term:
January 2026 – December 2027

Pedro-Estacio

Pedro Estacio

Treasurer

IAC-Masteries Practitioner
BOG Term:
 October 2024 – September 2027
Treasurer term:
January 2025 – December 2026

Martha Pasternack

BOG Member

IAC-Master Coach (IAC-MC)
BOG Term:
March 2016 – February 2028
Treasurer Term: 2019 – December 2024
Martha’s Website

Carla Cofiño

BOG Member

IAC-Certified Coach (IAC-CC)
BOG Term:
January 2019 – February 2028
Carla’s Website

Photo Shape Editor: https://www.tuxpi.com/photo-effects/shape-tool

Catherine Miller

BOG Member

IAC-Master Coach (IAC-MC)
BOG Term:
December 2021 – December 2027
Secretary term:
January 2023 – July 2025

Photo Shape Editor: https://www.tuxpi.com/photo-effects/shape-tool

Brian French

BOG Member

IAC-Certified Coach (IAC-CC)
BOG Term:
December 2021 – December 2027

 

Photo Shape Editor: https://www.tuxpi.com/photo-effects/shape-tool

Jessica Lu

BOG Member

IAC-Master Coach (IAC-MC)
BOG Term:
June 2022 – May 2028

 

Zuño Kristal

Zuño Kristal

BOG Member

IAC-Master Coach (IAC-MC)
BOG Term:
August 2023 – July 2029

Photo Shape Editor: https://www.tuxpi.com/photo-effects/shape-tool

Doménico Sirica

BOG Member

IAC-Certified Coach (IAC-CC)
BOG Term:
August 2025 – July 2028

Photo Shape Editor: https://www.tuxpi.com/photo-effects/shape-tool

C.J. Ng

BOG Member

IAC-Masteries Practitioner
BOG Term:
August 2025 – July 2028

Photo Shape Editor: https://www.tuxpi.com/photo-effects/shape-tool

Chunnan Jiang

BOG Member

IAC-Certified Coach (IAC-CC)
BOG Term:
March 2026 to February 2029

Support team

Diana McFarlane

Virtual Assistant

Diana’s Website

Juan "Charlie" Medina

Website Content

Photo Shape Editor: https://www.tuxpi.com/photo-effects/shape-tool

Oswaldo Parra

Virtual Assistant

Photo Shape Editor: https://www.tuxpi.com/photo-effects/shape-tool

Guillermo Moraez

Virtual Assistant

Ricardo Circ

Ricardo Zebede

Executive Operations Coordinator

Photo Shape Editor: https://www.tuxpi.com/photo-effects/shape-tool

Ruthild Ohl

Executive Assistant

Scroll to Top

Ingrid Rosenberg Arbenz
IAC®-Masteries Practitioner™

Ingrid is passionate about people and their potential, about the growth of modern leadership in organizations and about businesses. She is an Executive and Team Coach, and expert in human talent management. She dedicates this knowledge to support clients through her company Talent Advisors, which she co-founded 9 years ago and today is recognized for its effectiveness in developing leadership skills and creating organizational cultures that promote results, allowing the well-being of all stakeholders.

Ingrid unites her passions, Coaching and Leadership, by volunteering her time in the International Association of Coaching. She first served as IAC® Costa Rica Chapter Leader, and now she has taken on the role of Coordinator of the Global Membership Committee and BOG Member.

Ingrid is certified in NLP, change management, emotional intelligence, agility among others. But the most important aspect for her is; being the mother of her son, Santiago.

Guilian G. Carlotti R, is mainly an entrepreneur and businessman. He married for 33 years with his wife Nancy. Father of three children. Since 2010 he has been engaged in coaching. Especially executive and team coaching, at the same time directing the companies he founded. As a coach, he has worked for professional soccer teams, highly competitive athletes, and transnational corporate executives. Specialist in Marketing and Sales. 40 years related to the media. Founder-Director of Vanguard Advertising, By-Pass Advertising, and D.P.I Digital Printing. Founder Coaching Carlotti Coaching and MVP Coaching Institute. Director of Coaching for Quince Sports. Executive director and executive secretary of the board of directors of the Chamber of Commerce of Valencia, Edo. Carabobo (1,984 – 1,988) President of the Venezuelan chapter of the International Association of Coaching (2015 – .1818) Currently, he is a coach in the professional development program, coordinator of the membership committee, and member of the board of directors of the International Association of Coaching. During the last 15 years, he has led conferences and seminars in 12 countries, on Coaching, leadership and teamwork.

Ritu Mathur
IAC Masteries Practitioner™
IAC® India Chapter Member
Member School Accreditation Committee

RITU MATHUR: Learning and Development professional with expertise in defining and driving learning strategies and interventions for organizations and individuals.

Ritu holds a Masters Degree in Psychology and an M.Phil degree in Human Resource Planning and Development from Indian Institute of Technology, Mumbai. She has 24 years of experience having worked with a diverse portfolio of industries from IT, Pharma, BFSI and Logistics.

Her areas of expertise include working with clients across the talent life-cycle, including psychometrics, assessment centres, leadership and executive development, competency frameworks, talent analytics, training and coaching and conducting organizational development interventions.

Ritu has extensive experience of Assessment Centre design and delivery with impetus on:
• Competency based assessment tools and exercises for Assessment/Development Centers.
• 360 degree feedback and Diagnostic surveys
• Organization specific diagnostic tools to assess competencies and personality traits.

She has extensively worked in assessments with leading consulting organizations having designed and conducted several assessment/development centers.

Apart from this she is a qualified Assessor and User of a wide range of psychometric tools for use in assessment and development contexts. She is a qualified test user and trainer on a wide range of psychometric tools like MBTI, Hogans Assessment, DISC, FIRO- B, SOSIE Personality test, Golden profiling, Watson Glaser Critical Thinking Test.

As an OD consultant, Ritu has been collaborating with senior business leaders in organizations to identify organizational strategic capability needs and establish comprehensive action plans to address gaps and enable successful execution of the business strategy. She has been involved in a wide variety of organization interventions from large system-wide change interventions through small projects including succession planning, executive and team development and planning.

She is also an NLP Practitioner and is committed to enhancing her knowledge and skills in Occupational Psychology.

Ritu has been associated with IAC® for the past ten years and has been part of the School Accreditation Committee since its inception.

Business Consultant. Certified Executive Coach by the International Coaching Community (ICC), London, UK. Ontological Coach, member of the Global Council for Coaching, Consulting & Psychology (USA), professional member of the International Enneagram Association, Washington Chapter, USA. Additionally, Certified Life & Leadership Coach by the International Association of Coaching (IAC). Current Country Leader of the International Association of Coaching (IAC), Peru Chapter. International speaker. Enneagram expert, with studies in Neuro-Linguistic Programming (NLP), Conversational Hypnosis, and management of innovative coaching tools from the Points of You methodology. Instructor of the Citizen Service Program at the National School of Public Administration (ENAP). Trainer in Emotional Intelligence. Certified Public Accountant from the National University of San Marcos with postgraduate studies at the University of the Pacific and the University of Applied Sciences (UPC). Over 20 years of experience in managerial positions. CEO & Founder of EIC International Consulting (Partner www.sovos.com) and Re-Create International Human Development, Country Director at MentorCoach Online. Former Manager at PricewaterhouseCoopers and Hewlett Packard. Has had the opportunity to work with executives from America, Asia, Africa, and Europe on regional projects related to Process Improvement, Outsourcing, Tax Compliance & Corporate Accounting in Fortune 500 companies. Portfolio: #Google #Hasbro #Phillips #AT&T #HewlettPackard #HPInc #Movistar #Toshiba #Covance #Agfa #Boartlongyear #Mast #CASoftware #Compaq #FenixPower #Brookfield #CFIndustries #Konecta #AventuraPlaza and more.

I have been a member of the IAC since 2009 and am now certified by the IAC® with MMCC status. Over my 35+ years of professional life as a nurse, Family Nurse Practitioner, and my 10+ years as a certified life coach, I am excited to champion the development of life coaching as an elegant and potent way to promote global peace, kindness, health and self-acceptance for all people.

I feel committed to supporting life coaches worldwide to do the work they’re called to do in the name of “Expanding The Path to Coaching Mastery”, the IAC® slogan.

It is with a sense of humility that I am able to serve as a member of the IAC® Board of Governors.

I was initially certified as a life coach by the Fearless Living Institute and am currently a Master Coach, Mentor Coach and Certified Trainer for the Fearless Living institute. I have been the director of the International Coaching Program, now known as the LCCP, for the Fearless Living Institute. I am currently serving as mentor for the LCCP.

I have been writing for the IAC VOICE™ since 2013. In addition I have been writing for the Huffington Post since 2012. I have created and participated in mastermind groups focused on business building and professional growth.

My husband and I live in southwest Colorado with winter jaunts to southeast Florida. I have 2 adult children, that I am very proud of, and my first grandchild who inspires me to continue this work for a peaceful world for him and for  children the world over.

Carla Cofiño is a Personal and Team Coach, she defines herself as a confidence and awareness coach for change and that is how her clients and students identify her. She is CEO, together with her husband Tomas Lozada, of the BCF Group, learning platform whose mission is to train leaders and empower teams with Coaching tools. They have trained about 300 Coaches since 2014 with their Training Program in Life & Sport Coaching and providing training and support to teams, project leaders and entrepreneurs in Venezuela, Panama and Chile in face-to-face format and in different Spanish-speaking countries in an online format.

From the age of 21, she has trained people, initially, in academic and technical areas such as economics and financial risk, and later in the management of organizational change, the development of communication skills, speaking, impact presentations and the strengthening of relationships on their teams.

Certified Coach by the International Coaching Community led by Joseph O’Connor (ICC #8006). Founding Coach of the Venezuela Chapter and the Panama Chapter of the International Association of Coaching. IAC Member #169756 with the IAC Masteries Practitioner Designation. Coach in training of the Empowerment Coaching Program of del Río Training.

As a Personal and Team Coach, Carla has specialized in working with beliefs, which has earned her the recognition of clients and colleagues for her Power Class Program “The World of Beliefs”, where she delivers her methods and tools to transform behaviors and results on a personal and professional level.

Economist (UCV University degree) with a Master in Financial Management (ISEAD & Westfield Business School, Spain) and a Teaching Diploma (UCV & UNEFA, Venezuela). Financial Risk Specialist with extensive experience in banking, reaching important positions at a young age. Researcher and Instructional Designer with experience in the design of models and methodologies.

Lover of physical activity, with training in different disciplines: CofiDance™ Free Dance, TRX® Suspension Training, Pilates and Functional Training System (FTS)®. Mother of a beautiful son and two pets (a furry cat and loving Pitbull), passionate about human potential and eternal apprentice with an extended family in the world.

Carla’s Website: https://sites.google.com/view/bcfgroupoficial/

Facebook: https://www.facebook.com/coficc
Instagram: https://www.instagram.com/coficc
LinkedIn: https://www.linkedin.com/in/coficc/
Twitter: https://twitter.com/coficc

Hello! Thank you for your interest in learning a bit about the members of your IAC Board of Governors. The following is some background on me, Catherine Miller.
Back in 1998 I read a newspaper article that opened my eyes and spoke to my heart…it described what I had been doing for the past 4 years but didn’t have a name for – Life Coaching! I found some coaching resources on-line but it was from 2003 and on, when I joined the International Association of Coaching (IAC) as a Founding Member that I obtained the guidance and means to certification I had been seeking.
The IAC’s values and mission aligned with my own and with that of the many wonderful people I met from around the world who were also seeking to develop their coaching skills to a level of excellence and effectiveness. In 2006 I earned my Master Masteries Coach certification and since then have continued to appreciate the IAC’s encouragement and support to continue to grow myself and my skills in my professional life. But it doesn’t stop there, for the inspiration from IAC role models and the skills and insights I glean for my professional growth transfer to and enrich my personal growth and satisfaction too.
Like all IAC members, true to the IAC’s philosophical roots, I draw on learned skills and experience from my past – corporate and small business in my case – to more fully understand, appreciate and implement the IAC’s 9 Masteries of Coaching. Studying and practicing the IAC Masteries continues to develop, refine and enrich my skills, awareness and interactions.
I am a member of the Canadian Chapter of IAC Coaches – an animated, talented, caring, supportive and mutually inspiring group.
As an IAC Examiner, a Member of the Board of Governors and a Researcher for the IAC, I feel honoured to give back to the IAC coaches, aspiring coaches and members, and to the coaching profession globally.
For 10 years my coaching focus was on helping employees in large and small companies transfer leadership skills into their work and personal lives in ways that enhanced their satisfaction, connection and effectiveness. For the past 15 years I have applied my coaching to helping people cultivate their emotional well being. I am the creator and facilitator of The Café of Well-Being – a series of interactive coaching conversations with individuals and small group participants that foster their ability to experience more vitality, clarity and equanimity more often and for longer periods of time. These conversations incorporate a blend of evidence-informed understandings, ancient wisdoms and dashes of humorous illustrations to shed light on systems in the brain and body that unnecessarily create and ramp up stress, and each person’s innate capacity to exercise their human agency to see with different eyes, act on opportunities and change perceived constraints into meaningful actions and interactions.
Additional Background:
 Certified Coach through the HeartMath Research Institute – building resilience and emotional regulation based on evidence-informed practices
 Trained in the professional application of Positive Neuroplasticity – the science of using our experiences in ways that promote lasting positive changes in the brain and thus lasting improvements in mood, interpersonal skills, self-worth, and resilience
 Certified Group Coach through School of Coaching Mastery
My husband and I, with our feline family member, live on a rural property close to friends and surrounded by nature where we enjoy a variety of outdoor recreational activities throughout the four seasons – from kayaking to cross country skiing. I am grateful for the people and these elements in my life – they all contribute significantly to my well being!

Brian Lowell French is a leadership creator, teacher, and coach with 30+ years of experience. He is the Founder and President of Harmonic Learning, LLC, a talent development company providing leadership development, executive coaching, team-strengthening, and mindfulness-based programs.

Brian previously spent 16 years with a US-based Fortune 20 technology company, leading a team that provided the Global Leadership Development programs for 120,000+ global employees. Programs included leadership/management training, developmental assessments, mentoring, coaching, performance management, ethics/compliance education, and organizational design/development consulting.

He is a Certified Masteries Coach with the International Association of Coaching (IAC), and holds many certifications on industry-leading psychometric-assessments and leadership-content. He is also a certified Mindfulness Exercises teacher, and certified Qigong for Health teacher, providing sessions to enhance personal well-being.

He is the author of the book, Harmonic Leadership – Leading with Inclusive, Mindful Caring, and is a frequent speaker on the topic of leadership and talent development.

A lifelong musician and songwriter/singer, Brian writes and records music designed to enhance mindful contemplation, strengthen interpersonal relationships, and increase connection with the natural world.

Jessica Lu joined the IAC Certification Committee in April 2022. With accounting, business operation, HR management consulting and leadership training/coaching experience, Jessica wishes to contribute to the development and sustainable success of IAC.

Zuño Kristal

Zuño brings more than 20 years of Coaching Experience, working with executives and independent professionals. He lived in three continents, originally from Peru and later lived in New York and in Tel Aviv, and works as a coach in Spanish, English and Hebrew.

As one of the pioneers in Coaching research. Zuño holds an EdD Doctorate degree from Teachers College, Columbia University, USA.

His research focused on the Role of Reflection in the Coaching Process.

In addition, Zuño has a M.A. in Organizational Psychology from Columbia University and an M.A. in Experimental and Research Psychology from Bar Ilan University, Israel.

In addition to his work with individuals, since 2006 Zuño has been an academic leader, building and facilitating coaching programs in the US and in Israel: as Director of Coaching Certification Program at Bar Ilan University, and as professor of the Group Coaching course at Teacher’s College.

Zuño studied coaching in CoachVille and at RCS (Results Coaching Systems), and was certified as a coach by IAC® in 2003.

Zuño coaches individuals and groups, private and corporate clients. He is passionate about helping the growth and development of the client’s needs: management, working with teams, personal development, career and more.

Before going into coaching, Zuño worked in various business and non-profit management roles. He was Sales Manager in the Telecom industry, General Manager of an international non for profit organization.

Early in his career, Zuño facilitated leadership developmental seminars in English, Spanish and Hebrew.

He is a proud father of three adult children, and of Tom, the dog.

Doménico Sirica

IAC-Certified Coach™
Executive and sports coach, facilitator of workshops and training sessions for major organizations in Venezuela. A certified public accountant by profession and a commercial broadcaster, he has dedicated the last 20 years to developing high-performance teams in the real estate sector. Member of the Coaching and Leadership Committee of the Carabobo State Executives Association (AEEC). A volunteer IAC member since 2019, he was the Lead Coordinator of the IAC Venezuela Chapter from 2020 to 2023. He was the Ibero-American Chapter Coordinator from 2024 to 2025. He is now the Global IAC Chapter Coordinator from 2025 to 2027.

C.J. Ng
IAC-Masteries Practitioner™

C.J. Ng is a sales leadership team coach who has significantly improved performance for companies across Asia. He has worked with companies such as Cisco, HP, Honeywell, BASF, Evonik etc..

C.J. had held management positions in marketing and learning & development in various companies, providing him with a unique understanding of diverse corporate cultures and functional roles. He has worked and lived in Singapore and China, and has travelled extensively to work with teams throughout Asia.

C.J. was a Board of Directors member with DUSA European Association Suzhou from 2017 to 2021. In 2020, he collaborated with his Board members to assist companies in restarting their manufacturing operations in the early days of the COVID-19 outbreak.

C.J. offers valuable insights and tailors solutions to meet his clients’ needs. He is a bilingual facilitator and coach with extensive experience in Asia. His expertise encompasses a range of assessment tools. He is the author of “Winning the B2B Sale in China” and “Data-Driven Sales Leadership”.

C.J. is also the leader of the Global Membership Committee of the IAC®

Chunnan is a seasoned coach and community builder with over 20 years of working experience across multiple industries and 11+ years of coaching practice. She holds an MBA from Sweden’s Jönköping International Business School and specializes in personal development, leadership, and cross-cultural communication, helping individuals and teams unlock their full potential.

A passionate advocate for coaching in Chinese-speaking communities, Chunnan founded six NGO clubs across China, and established the Coaching Association to support local coaches. As an IAC volunteer, she has contributed to the “Experience The Coaching Masteries” and “TriAD” projects in Chinese, and serves on the School Accreditation Committee, bridging the needs of coaching schools with IAC’s standards and vision.

Chunnan brings to the IAC Board her strategic vision, deep cross-cultural experience, and proven ability to build inclusive, thriving communities. She is uniquely positioned to help expand IAC’s reach and relevance in Asia.

Diana McFarlane, President and founder of DKM Online Office Solutions, currently holds the position of Virtual Assistant Administration to the IAC. She has 10 years experience in the virtual administrative support field working for a variety of clients both in administrative and website design. At the IAC, Diana is the Certification Processor, handles email correspondence, sends out the VOICE newsletter, maintains the website and has various other duties. Diana can be reached via her websiteDKM Online Office Solutions.

Ricardo Zebede

Executive Operations Coordinator

Ricardo Zebede serves as IAC’s Executive Operations Coordinator, combining extensive experience in operational effectiveness and continuous improvement with a deep understanding of coaching practice as a Coach holding the IAC – Masteries Practitioner designation. In this role, he focuses on cross-committee alignment and strategic execution, working closely with global leadership, committees, volunteers, and internal teams to streamline processes, enrich the member experience, and drive the development of coaching excellence in service to our global community.

Email: executivecoord@certifiedcoach.org

I joined the IAC team in October 2024 in my role as the Assistant to the Executive Committee. I am semi-retired from my previous career in Business Administration of both for profit and non-profit organizations in Canada. I hope to use my experience to help build a strong organizational structure that will support the operational side of IAC and future growth of this organization. I might be the only member of the IAC team who does not work as a coach; however, I have managed the business side of my husband’s (and now also our son’s) coaching business since its inception in 1999. I have witnessed the powerful impact of coaching many times and feel privileged to be a part of the work of IAC.

In my free time I enjoy the great outdoors of the Westcoast of Canada.

Ruthild Ohl

IAC Login

International Association of Coaching
Privacy Overview

This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.