We are passionate about enabling leaders, managers, teams and individuals to maximise their potential. Imagine your organisation utilising the full potential of all its employees.

Meet Us

There are many coaches, facilitators, trainers and consultants in the market place, so why choose Iridium? What makes us special?

For a start we are passionate about what we do.  We genuinely love working with businesses, teams and individuals enabling them to “discover their talent”.  We believe there is potential in everybody and that most organisations only utilise a fraction of that potential. We are passionate at unleashing potential that in turn unleashes organisational performance.

All our consultants are very highly trained and skilled as you will see from the detailed descriptions.  We continually invest in our own personal development, provide constant feedback to each other and are all friends as well as professional colleagues.

Our core values are integrity, professionalism, loyalty, honesty, trust and fun.  We place our customers at the very heart of everything we do and pride ourselves in meeting our commitments to the highest standards. Everything we do is bespoke and tailored to our clients desired outcomes. Every project is led by one of our co-owners and so you have their personal commitment to your success.

Contact Colin Graves (one of the co-owners) now on 07881 636538.

Gill Graves Presentation Skills Coach

Gill Graves

Formerly HRD Director of a US high tech company, Gill has extensive hands-on international HRD experience, gained within fast-growing, rapidly changing environments.

Gill is one of the country’s most qualified coaches and facilitators with an MA in executive coaching and mentoring, EMCC Master Practitioner accreditation and an MBA from Warwick University.  Gill is a fellow of the CIPD, a master practitioner and certified trainer of NLP , Level 1 and 2 SHL trained including the use of OPQ, a qualified user of a range of Hay tools, a qualified user of the Myers Briggs Type Indicator (MBTI) and qualified supervisor of coaches. Gill has written two highly successful books: ‘Presenting Yourself With Impact’ and ‘Coaching with Impact’. Gill founded Iridium in 2000 and has built an impressive and loyal client base.

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Colin Graves

Colin Graves

Formerly MD for Northern Europe of a Nasdaq quoted US company, Colin has extensive hands-on international sales, marketing and general management experience, gained within fast-growing, rapidly changing environments including 12 years with GE. Colin is an experienced facilitator and executive coach.

Colin has a degree in Electrical Engineering, an MBA and a first class degree in Psychology. Colin is also a qualified user of the Myers Briggs Type Indicator (MBTI) , a Licensed Practitioner of Insights Discovery and qualified user of OPQ.

Colin worked part time for Iridium from 2000 and joined full time in 2004.


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Cathy Millington

Cathy has a background of hands-on experience within UK HRD; formerly she was Personnel Officer of a Canadian-owned UK-based high tech company and prior to this PA to the General Manager for a leading UK engineering company. Cathy has worked with Gill since 1988 and has worked part-time for Iridium since 2000. Cathy is a graduate of the CIPD.

Kate Wilson

Kate has a strong HR and development background with 20 years experience partnering a wide range of organisations.  She headed up the Management Development function at the Alliance & Leicester Building Society where she successfully gained board level commitment to robust succession planning and talent management processes.  She also has experience in leading and delivering on interpersonal skills, 360 feedback and performance management . Her broad experience has enabled her to deliver pragmatic solutions across the range of people management issues. She has also completed several senior management coaching assignments and project managed major organisational change programmes.

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Liz Carrighan

Liz Carrighan

Liz is an executive coach and consultant in leadership development. Outcomes of her work result in sustainable behavioural change leading to enhanced performance. Clients include a number of high profile blue chip organisations.

Liz worked for the HayGroup for several years as a consultant and their Director of HR. Prior to this her career alternated between corporate roles in sales, marketing and HR, and independent consultancy.

Liz has an MBA from Henley Management College where she is now a visiting tutor. Liz is accredited in MBTI, Emotional Intelligence Inventory and is a Master Practitioner and certified trainer of NLP.

Tracy Cleghorn

Tracy Cleghorn

Tracy has 9 years experience of working in the consultancy field. As a consultant, facilitator and coach she works with individuals and organisations assisting them in exploring and developing personal and organisational alignment, thereby enabling them to achieve their goals and realise their full potential. Prior to this Tracy’s background includes an 11 year career with British Airways.

Tracy’s credentials include an MBA from Lancaster University and a Coaching Diploma. She is an NLP Master Business Practitioner and a licensed practitioner of the Myers Briggs Type Indicator (MBTI), Firo-B – Oxford Psychologists Press, Strength Deployment Inventory (SDI) and EQ-i the BarOn Emotional Quotient Inventory.

Christine Crossman

Gill met Christine over 10 years ago when Christine was a Principal at Watson Wyatt Worldwide and Gill was one of her clients. Gill was consistently impressed with Christine’s professionalism, her dedication to her clients and her willingness to go that extra mile. Christine inspired Gill to establish Iridium and remains a close friend, mentor and colleague.

Christine brings over 20 years of consulting experience with expertise in leadership assessment, personal development planning, executive coaching, recruitment and selection, the design and delivery of organisation-wide 360º feedback programmes and team building.

Based in Ottawa, Canada, Christine has worked with public sector and private sector clients in Canada, the US and Europe.

Christine has an Honours Bachelor of Social Sciences Degree in Industrial Psychology and is a qualified facilitator of the Myers Briggs Type Indicator, among other psychometric tools.