We help teams to get the best from each other, while helping the individuals in each team to get the best from themselves.  

Libby Child

My years in senior international leadership roles, managing multiple teams, taught me that is vital to align the skills and ambitions of your people with your business objectives. To provide a clear and positive direction, to bring everyone with you, to motivate.

I spent 20 years working in international communication agencies- Ogilvy, Y&R, and McCann, as a Managing Director, European Chief Operating Officer, and Global Account Director.

I came to realise that agency/ client team relationships are amongst the most complex and inter-dependent of professional service relationships – the quality of an agency’s output is highly dependent on the quality of their clients’ leadership.

So, 15 years ago, I made the decision to channel that rich and varied experience into helping those teams, by setting up Aprais UK – part of a global network – specialising in measuring the relationships between marketing companies and their communication agencies.

Jaguar Land Rover, BAT, Sony Mobile, Vodafone, and Marks & Spencer were amongst my clients. I was personally responsible for running international assessment programmes, covering thousands of teams, across 30+ markets. The decision to co-found Greengrass Consulting was the natural next step.

I’m deeply committed to the marketing sector and have just run a major quantitative and qualitative survey for IPA/ISBA, researching Marketing Effectiveness cultures. I bring together sector knowledge, leadership experience, tools and techniques- as well as passion, objectivity and integrity. I’m also a qualified Pilates instructor, as I believe the stronger we are mentally and physically, the more resilient we are.

  • Professional Certificate in Coaching (PCIC)
  • Accredited systemic team coach (AOEC)
  • Denison Consulting Partner, accredited to deliver the Denison Organizational Culture Survey (DOCS)
  • Trained Barrett Values facilitator
  • Team Diagnostic Survey (TDS) facilitator
  • Certified in PPA (DISC) profiling: Thomas International

Marina Lumley

As a Board Director, and in the many years I’ve been working in marketing, consultancy and team performance, my purpose has remained constant: I want to help people, and the teams they’re part of, to become more effective and more satisfied.

This was the motivation for co-founding Greengrass Consulting with Libby: bringing together our expertise, our experiences and complementary perspectives in a way that can really make a difference. 

I love getting to the heart of things. Finding out what needs to change. Discovering how the culture of a team and a company needs to evolve, and helping that change to come about in the best possible way. 

Being collaborative by nature, this means co-creating insights so that everyone can see them and connect with them. To achieve that, I’m accredited in a number of tools and methodologies. After certifying as a coach at Henley Business School, I began my Masters in Coaching and Behavioural Change and I’m now researching the impact of team coaching using emotional intelligence on team effectiveness.

  • Professional Certificate in Coaching (PCIC)
  • Certificate in Systemic Team Coaching (AOEC)
  • Denison Consulting Partner, accredited to deliver the Denison Organizational Culture Survey (DOCS)
  • Vital Signs Assessments for individuals, teams and organisations (6Seconds)
  • Certified in PPA (DISC) profiling: Thomas International
  • Hogan
  • Emotional intelligence Assessor and Practitioner (SEI 6seconds)


Our glass is always half full. 
The grass can be greener. 

It’s our energy that helps to drive positive change, Our values are reflected in every aspect of our approach.


We believe people have the power to transform business

We believe that every individual and team can thrive.

We approach our work with optimism and energy.


We believe getting to reality – finding out what’s really going on, how people really feel – is the best starting place for change.

Every part of our methodology is designed to surface reality and work with what we find. We have no pre-conceptions.


We believe that trust is the foundation of all relationships.

We deliver what we promise with integrity, and we keep our relationships confidential.


We believe in enabling choices and options.

Our work is focused around challenging the status quo, spotting what’s stuck and helping to create options and choices for individuals and teams.


We offer a full-spectrum, connected service through our network of partners. 

We don’t pretend to be a jack-of-all-trades. We prefer to recommend colleagues with whom we’ve worked, many times, and whose work complements our own.


Scott specialises in supporting us with research, insight and analytics - delivering expert quantitative and qualitative solutions including online surveys, focus groups, depth interviews, advanced data analysis, text analytics, stylish reports & presentations and infographics.


As MD of Denison UK, Karen works closely with us and her certified partners to turn what is often ambiguous and intangible, into something energising and productive.


Emma is an Accredited Coach and Licensed NLP Practitioner. As a Strategic Consultant, she supports us with work in the behavioural change, marketing and brand strategy arenas.


Combining over thirty years experience in effective creative communications with a Master's degree in organizational consulting, Paul has many years experience as a facilitator and trainer in creative industries.


Steve is an experienced global marketing leader at CMO level, a fully qualified executive leadership coach, accredited at Senior Practitioner level with the European Mentoring and Coaching Council.