Our Board of Directors

Helen Killmier


Clinical Governance Committee Member, Finance Committee Member, Audit & Risk Committee Member

MAppPsych, GDAppPsych, GDPsych, BA, FAPS, FCCOMP, MAAPi, GAICD

Helen is a community psychologist, with over 25 years’ experience in senior executive roles. Her career has been informed by a human rights perspective, social justice, empowerment and the social/ecological model of health.  She has extensive experience in leadership roles including leading development and implementation of vision, mission and strategic direction, transformational change management processes, NDIS leadership, development of consortia, financial and risk management, clinical governance, strategic planning, workforce development, business development and service provision. She has experience working in a variety of sectors including disability, homelessness, alcohol and other drugs, local government, justice and mental health.

Helen has over 25 years’ experience as a psychologist and is a Fellow of the Australian Psychological Society and a Psychology Board approved supervisor. She was honoured to become a finalist in the Telstra Business Women’s Awards 2020 and a finalist in the Victoria University Alumni Awards for Professional Achievement 2018. Helen has served on many not-for-profit boards and has chaired a homelessness service, a local learning and employment network and a community legal centre. She is currently a non-Executive Director for ANZACATA. Helen founded Guidestar in 2017.

Mark Hearn


Finance Committee Chair, Audit & Risk Committee Chair

Mark Hearn is the Founder of No Barriers, a consultancy specialising in all aspects of business finance. Services include Financial Management and Analysis, Strategic Planning, Interim CFO, Mergers and Acquisitions and Systems and Process Re-engineering.

Mark is a Chartered Accountant with over 25 years experience in leadership roles as a CFO at major financial institutions and has completed over $5bn in Merger & Acquisition transactions. He has worked with regulators across the world, delivered global projects to meet changing regulatory requirements and project managed business finance systems re-engineering creating significant savings and efficiencies. His industry experience includes all aspects of finance from large corporations and startups to small businesses.

Recently No Barriers has focussed on technology firms and startups, consulting on a series of key projects including the implementation of an AI solution for a Technology firm in the Finance industry. No Barriers has delivered Interim Finance Executive services to Technology firms and provides ongoing CFO services to several startups.

Reuben Langkamp

M.Comm, B.Ag Sci, GAICD, GIA [Associate]

Reuben has been with Guidestar since its foundation. He is an accomplished professional with a broad range of experience across governance, business management and project delivery in both not-for-profit and corporate settings. Reuben is a dedicated Non-Executive Director with extensive lived experience supporting a family member with disability and has a deep knowledge of the NDIS. Reuben has held a variety of roles with disability providers in quality, safeguarding and practice supporting children, adults and families. Reuben has a strong passion for social justice and holds senior governance roles with non-profit organisations Sacred Heart Mission and St Mary’s House of Welcome. Reuben is a Graduate of the Australian Institute of Company Directors, an Associate of the Governance Institute of Australia and holds a Masters degree in Commerce.

Rod Paine


Rod has had extensive experience in technology, business transformation and program management in both the commercial and not for profit sectors.   As a Partner with the consulting division of IBM he led the Complex Systems Integration, Emerging Technology and Cloud functions.  He was account lead for NDIA and NDS when the NDIS scheme was being established.  Rod chaired the Oliver Hume Digital Strategy Committee, which helped fund a Business Process as a Service that provided the technology, staffing and business processes for service providers transitioning to NDIS.  As a Program Director for Seven Consulting he led the transformational program for Colonial First State’s separation from CBA, wrote the business case and then helped AMP’s movement to AWS, and led a review of NSW eHealth’s program management.  He is currently assisting a large NFP with their implementation of client management, scheduling and awards interpretation software.  This includes substantial change management and standardisation in operations.

Rod has been board member of Guidestar since Helen breathed life into it.

Lee-Arna Fitch

Clinical Governance Committee Member

BAppSc. (Occupational Therapy)

Lee-Arna was appointed to the Guidestar Board in October 2021 after enjoying a collaborative working relationship with Guidestar since it was founded in 2017. Lee-Arna is a passionate business owner and Occupational Therapist of 16 years, who enjoys working with other clinicians who specialise in supporting some of our most vulnerable community members.

Lee-Arna is an advocate and supporter for people from all walks of life, dealing with complex issues who are seeking to change and improve their lives. She thrives on establishing partnerships with like minded people and organisations, with the opportunity to build the capacity of clinicians and the people they serve. She has worked across a range of sectors including disability, health, aged care and community.  She has worked in leadership roles to support organisations around change management, strategic planning, staff training, clinical supervision, dealing with complex clients and behaviours, and complex case planning to support lasting change.

Sarah Exton

Sarah is an operational Leader with over 10 years combined experience in both the Corporate and Not-for-Profit arena. Sarah has worked as an executive in both the aged care and disability services sector and holds extensive knowledge of various funding bodies and their supporting practise standards (TAC, MAC, NDIS, DSOA & DFFH). She has acquired knowledge and skills through hands-on experience, fully immersing herself in the intricacies and complexities of the disability and aged care landscape.

Sarah is experienced in both service design and service delivery and has executed a number of transformational projects that sought to uplift the customer experience for both NDIS and Aged Care participants.

Sarah has witnessed the implementation of several consumer advisory boards to ensure consumer led strategic plans and better service outcomes for organisations. She is the step-parent of an individual living with a disability and as the newest member of the Guidestar board of directors, her personal connection to disability enables her to bring both a lens of corporate governance, and further an important consideration for the individuals who are in the midst of accessing or receiving support.

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