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  • Helping organisations develop sustainable business strategies and communicate with stakeholders effectively


    How Green Unlimited can help


    • Strategy development, review and advice
    • Materiality review
    • Policy development
    • Indicator and target development


    • Sustainability and stakeholder reporting
    • Report development, review and benchmarking
    • Report and data readiness checks 
    • Independent report assurance

    Stakeholder support

    • Stakeholder engagement
    • Training 
    • Workshop facilitation
    • Employee engagement

    Associate & interim roles

    • Associate roles with consultancies
    • Interim roles with industry
    • Long and short-term support
    • Team lead and management

    Selection of recent work

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    Coty / The Wella Company

    Interim sustainability lead

    Sustainability lead for Wella, preparing for separation from Coty, developing sustainability strategy, partnerships and performance reporting system

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    Pukka Herbs

    Sustainability Targets and Indicators

    Review of sustainability targets, key performance indicators and metrics

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    Sustainability Lead

    Sustainability Lead for the Northern Estates Project, refurbishing the Parliamentary estate

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    University of Bristol

    Honorary Teaching Associate

    Professional project mentor and co-teaching Environmental Consultancy module, MSc Environmental Policy & Management


    Examples of experience over the past 20 years

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    DNV GL

    UK Sustainability

    Directed sustainability reporting, advisory, independent assurance, sustainability strategy and stakeholder engagement projects, led training and workshops for management and director levels

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    World Economic Forum

    Sustainable Consumption Initiative

    Project managed the Sustainable Consumption Initiative. ‘Redesigning Business Value: A Roadmap for Sustainable Consumption’ report launched at Davos in 2010

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    Sustainability Services

    Managed sustainability reporting, assurance and advisory engagements for UK and multi-national companies. Supported Deloitte UK's Responsible Business strategy and reporting

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    EDF Energy

    Corporate Responsibility Reporting

    Led corporate responsibility reporting strategy and approach, advised on strategy, stakeholder engagement and community investment



    Green Unlimited was started in 2018 by Kate Martin Bruintjes

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    Kate Martin Bruintjes



    A skilled, passionate sustainability professional with a wide range of experience developed over nearly 25 years working in consultancy, in industry and for an international charity.


    Experience of working in the UK and internationally with a wide variety of organisations in the public, private and not-for-profit sectors including those in utilities, consumer goods, construction, food and drink, oil and gas, financial services, leisure, travel & tourism and transport.


    Enjoys working with organisations at any stage of their sustainability journey. Passionate about really helping to meet the needs of companies and their stakeholders.

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    Proud to be a 1% for the Planet business member

    Get in touch

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    +44 (0)7968 161 551