About Us

lixivium (lɪkˈsɪvɪəm)
n, pl -iums or -ia (-ɪə)

1. (Chemistry) the process by which the core elements are extracted from a chemical solution

2. (Consulting) a solution derived from key issues faced by an organisation

Lixivium is an Australian owned and operated consultancy. Having grown rapidly over the past 20 years, Lixivium has established itself as the preferred supplier to many of the largest organisations in the national market.

With a head office in Melbourne as well as affiliates in all other states, Lixivium can deliver its services to various locations for organisations Australia-wide.

Lixivium’s dedication and commitment to providing the highest quality consulting services has earned us an esteemed reputation in the marketplace.

Our Mission 

Lixivium's mission is:

"To apply comprehensive best practice analysis, in order to enhance performance and facilitate the growth of our clients’ businesses"

We continue to achieve our mission through assisting organisations to:
  • Hire the people best suited to positions and companies through the application of valid tests and assessment centres
  • Train employees and develop their skills in a range of areas including sales and marketing, customer service, leadership, negotiation or stress management. Increase the quality of performance management by devising positions descriptions and performance appraisal systems, and employing motivational techniques
  • Minimise disruption during organisational change
  • Successfully manage the career transition of employees

Our Values

  • Communication
    We go out of our way to share information with each other in an open, honest and respectful manner in
    an attempt to help each person’s productivity and
    job satisfaction.
  • Teamwork
    We support each other by being aware of each other’s needs and workloads, and being prepared to go out of our way to help each other. Furthermore, one person's success or achievement is something that we all take pride in.
  • Accountability
    I am responsible for the quality and timeliness of my work, and I hold myself accountable to my colleagues and to the business as a whole.
  • Client Focus
    We strive to exceed the client’s expectations by building strong relationships based on a thorough understanding of their needs, being responsive, and delivering quality work to the best of our ability.
  • Continuous Learning
    It is our pride in our knowledge base that drives us to never be satisfied with what we know and through a desire to continually upgrade our skills, we bring the very best IP to our client’s business.
  • Maximising Potential
    Based on our self knowledge, we try to be the "best"
    we can be, no matter what our role - for the good
    of our clients and for our own personal and
    professional development.

Our Team 


As consultants, we are specifically trained in the design, evaluation and implementation of a wide range of best-practice and evidence-based approaches to organisational issues. We pride ourselves on our valid, innovative and effective approach in designing solutions and programs across a myriad of cultures and industry sectors.

Georgia Kouselas, Assessment Manager

Georgia is a psychologist specialising in selection, development and talent management. She is primarily interested in helping organisations recruit top-tier staff, utilising a wide range of psychometric tools and evidence-based assessment methods. In recent times, Georgia was based in London and worked in HR roles within the Finance Sector. She has extensive experience in graduate recruitment, talent acquisition and coordinating assessment centres.

Georgia has worked with clients from a range of sectors, including Education, Health, Government, Retail, Finance and Banking.

Georgia holds a Masters in Psychology (Industrial/Organisational), University of New South Wales; a Post Graduate Diploma in Psychology, Deakin University; a Bachelor of Social Science (Psychology), Royal Melbourne Institute of Technology.

Joanna Harrison, Office Manager / Assessment Administrator

Joanna has many years’ experience in the coordination and administration of a broad range of client projects. This includes correspondence with participants, setting up survey software, the roll out of information and the input and processing of data. During her time conducting assessments at Lixivium Consulting, Joanna has administered surveys to thousands of participants and so brings a wealth of knowledge and experience in handling all forms of participant queries.

Kath McCarthy, Associate Senior Consulting Psychologist

Kath is a Senior Consulting Psychologist who provides organisational development, leadership development and executive coaching to senior executives within government, education, corporate and legal sectors. This has included providing 360 degree feedback debriefs, and administering and debriefing personality, mental health screening and leadership assessments using a range of psychometric instruments. She has extensive experience providing executive coaching for leaders within organisations. Kath has also delivered leadership development training and workshops for middle and senior leaders within organisations and has worked with leadership teams on developing strategy and improving their functioning as a team.

Prior to working as a consulting psychologist, Kath has held positions within government which included being responsible for overseeing the delivery of substantial legislative and operational reform agendas to the WorkSafe system. Her position as senior legal counsel, involved responsibility for the management of stress claims under the WorkSafe system and overseeing the strategic management of all stress related litigation in Victoria within this scheme. She served 8 years as an equity partner of a mid-tier Melbourne law and held leadership positions within the partnership for most of this time.

Kath holds a Master of Educational Psychology, Melbourne University; Graduate Diploma of Psychology, Monash University; a Bachelor of Laws (Honours), Monash University; and a Bachelor of Science, Monash University. Kath is a Registered Psychologist and an Australian Health Practitioner Regulation Agency Australian Legal Practitioner.

Annie Healy, Associate Senior Consultant

Annie develops and delivers organisational development and career management services to meet specific client and company needs encompassing the full life-cycle of organisational restructure from planning, communication, line manager training, through to the ongoing support of exiting employees. She is passionate about reaching the best outcome for both client and the individual.

Annie's expertise includes assisting organisations during periods of significant change, providing change management and strategic advice, delivering one-one career counsel, workshop delivery and group facilitation, psychometric assessments, and executive coaching.

Annie has more than ten years' experience as a career management and outplacement specialist and has worked with candidates from a range of sectors including Education, Transport, Health, Telecommunications, Retail, Government, IT, Finance and Banking. Some specific clients include The Royal Children's Hospital Melbourne, CoHealth, La Trobe University, Ericsson Australia, Australia Post, Superpartners & Melbourne IT.

Annie holds a Bachelor of Health Sciences, Honours in Psychology from La Trobe University and a Graduate Diploma, Counselling, ACAP (Aust. College of Applied Psychology).

Kim Hazendonk, Associate Consulting Psychologist

Kim is a registered psychologist with more than 15 years experience in both organisational and clinical neuropsychology. Most recently she has been consulting to leading corporations and Government in talent identification and management using valid and reliable psychometric and behavioural assessment tools. Kim also works as an executive coach, with a talent for empowering individuals to recognize their natural strengths and realise their full potential. Kim has worked professionally in Canada and London, and with her medical background, has developed a personal interest in workplace wellness and positive psychology.

Rachel Connor, Associate Senior Consultant

Rachel Connor has ten years consulting experience, supporting organisations to effectively respond to challenges with workplace culture, relationships and inclusion. Experienced in facilitation, mediation, writing workshop material and policies, and developing programs that support inclusive workplaces, Rachel works closely with individuals and teams to develop practical, lasting solutions.

Rachel has broad experience working in human resources and diversity roles in large organisations and consulting across a range of industries, including emergency services, health, FMCG, education, professional services and the not for profit sector. Rachel has worked across all levels in organisations and ensures that material developed meets the needs of the audience.

As a workshop facilitator, Rachel identifies the skills and experience of participants to ensure that workshops are relevant and meaningful for individuals and teams. Rachel approaches facilitation with a view to encourage participation, stimulate healthy discussion and build understanding.

Rachel is a qualified mediator and uses coaching techniques to support individuals to engage safely and effectively in challenging one on one conversations. Rachel creates a safe and supportive environment, models respectful language, and encourages individuals and teams to have meaningful, authentic conversations that build a productive and inclusive workplace.

Rachel also holds a Bachelor of Arts, Swinburne University; Bachelor of Business, Swinburne University; Graduate Diploma in Human Resource Management, Melbourne University.

Sarah Wood, Associate Senior Consultant

An outcomes-focused senior Human Resources professional with a passion for healthy and productive workplaces, Sarah has extensive in-house and consulting experience across multiple sectors including tertiary education, State Government, sport and finance.

Sarah is passionate about supporting organisations to maximise their business performance through the capabilities, behaviours, performance, development, reward and engagement of their staff, and designs and facilitates a range of programs, including highly-interactive workshops, to achieve this. Over the years Sarah has developed and conducted a large number of focus groups, workshops and team-building sessions for various State Government departments including DHHS, DET and DELWP. Most recently these include the Leading with Respect Program covering the modules of Giving & Receiving Feedback and Saying Yes to the Flexible conversation.

A certified HBDI practitioner, Sarah supports individuals and teams to develop and grow through building an awareness of human thinking preferences and how these preferences can be leveraged to maximise organisation success. She is also accredited in a change management methodology (AIM) which focuses on the human elements of organisational change programs, and is currently providing career coaching programs to a number of individual clients.

Sarah is experienced in individual and group coaching having successfully completed the Accredited Coach Training Program, a qualification recognised by the International Coach Federation. She has also been a mentor in the AHRI mentoring program for the past 8 years.

Sarah holds a Diploma of Business Management, Victoria University; a Bachelor of Arts (Honours in Geography), University of Nottingham; a Postgraduate Diploma in HR Management, University of Westminster, UK.

She is a graduate of the Australian Institute of Company Directors, and is currently a Victorian State Council member of the Australian Human Resources Institute. She is also accredited in the Accelerating Implementation Methodology (AIM change management (IMA)); a Certified Practitioner of Australian Human Resources Institute (CPHR); and a Certified Herrmann Brain Practitioner (HBDI).

Simon Osborne, Associate Senior Consultant

Simon has over 25 years’ experience as a manager, consultant, facilitator and coach. His experience has been gained in senior roles in both the public and private sectors and as a consultant with a major international consulting firm. He has outstanding skills in executive coaching, organisation development, management of change and leadership/management skills development. He has an honours degree in economics and qualifications in workplace training and assessment.

His private sector management roles have included the HR Director of a national manufacturing industry association and the senior manager in charge of leadership and management development in a major international financial institution. Simon has provided coaching to more than 450 managers and executives and is Lifetime Accredited in the Human Synergistics suite of personal and organisational assessment instruments.

Simon has delivered extensive executive coaching. Examples including coaching partners of an accounting firm, a general manager and the senior management team of a national supermarket chain, CEO and management team of a national education product supplier, local government and a dairy foods manufacturer. He has delivered leadership and change management programs for manufacturing, mining, service and public sector clients across Australia, Malaysia, Indonesia, Singapore, Hong Kong, Vietnam, India and Thailand. In recent years he has delivered feedback and coaching across the public sector, most recently for organisations such as Public Transport Victoria.

A key element of his current client work is built around the use of the Human Synergistics range of assessment and development instruments, specifically the Life Styles Inventory, Management/Impact, the Organisation Culture Inventory, the Organisation Effectiveness Inventory, Management Impact, Leadership Impact and the Customer Service Styles Survey to support the development of Constructive organisation cultures. He also uses the Team Management Profile, an Australian designed and internationally recognised assessment tool, to support the development of effective teams within organisations.

Simon holds a Bachelor of Economics (Hons), La Trobe University. He is also accredited in the Human Synergistics tools (LSI, LI, MI, GSI, OCI) and Team Management Profile.

Sue Constable, Associate Senior Consultant

Sue Constable is an experienced and respected ICF accredited coach with more than 5,000 coaching hours with over 500 Executives and Senior Managers in the private and public sector. Sue has a professional background in education and 20 years of experience in Leadership, Organisational and Team Development. She has held senior consultant roles within large global organisations in the manufacturing and retail sectors and has coached Executives who head up large teams in Finance, Accounting, IT, Sales and Marketing, Energy, Health and Education. As a respected and experienced facilitator, she has designed and facilitated award winning Leadership Programs for Ford Australia, Coles Supermarkets, Officeworks and Bosch. She has provided coaching services to Executive members of Victoria Police Crime Department and the ICT and Security Divisions for 15 years, and coaches Senior Managers and Executives at the DHSS and in local government.

Sue has won a Human Synergistics Organisational Culture Transformation Award for her work with a client (OCI) and an ICF Award for Excellence in promoting a workplace coaching culture for her work as lead National coach on the Coles Institute/Deakin University National constructive coaching program. She is a contributor to a coaching case studies book, “Releasing the Potential of Managers”. (Deakin University)

Sue holds a Bachelor of Arts (Honours), University of Melbourne; a Diploma of Education, University of Melbourne.

Sue is also accredited in the Human Synergistics suite of products: LSI, L/I, OCI/OEI and the Mayer Salovey Caruso Emotional Intelligence Test (MSCEIT).

Natasha Wilms, Associate Senior Consultant

Natasha Wilms is an experienced management consultant with over 15 years’ experience in Asia Pacific. She specialises in helping organisations work by building their capability through managing, developing and motivating their people to deliver outstanding results. Her experience spans multiple geographies with several years spent working in New Delhi, India.

Her work includes the design and delivery of organisation development programs, including leadership, team and individual development. Individual development work has included the assessment of individuals, provision of feedback on competencies and ongoing coaching, building emotional intelligence in leaders, and working with leaders to bring out the best in their employees to drive performance. In addition, Natasha works in the areas of competency modelling, job and organisational design and remuneration analyses. Through her understanding of job design and organisations, she helps clients to develop and implement a structure that truly drives business outcomes.

Her most recent projects include: A key assessor for an individual capability assessment project with a federal government department to assess ~2,200 EL1 and EL2 employees including behavioural event interviews, report writing and feedback sessions. Lead assessor for a financial services organisation identifying key talent and high potentials to transition in to GM roles. Identified key talent during a complex acquisition including behavioural event interviews, surveys, report writing and feedback for a global FMCG organisation.

Natasha has worked with several human capital consulting firms including over 14 years with Hay Group. She has also worked as a Research Manager for executive search firms including Watermark Search International and Slade Search and prior to this, she worked for a human resources management consulting firm in London.

Natasha holds a Bachelor of Arts, Monash University. She is also accredited with the British Psychological Society Test A and B as well as various other psychometric tools including Myers Briggs Type Indicator, Emotional Competency Inventory, Talent Q, Lominger and viaEdge Learning Agility.

Tania Sherwood, Associate Senior Consultant

Tania believes that learning is a lifelong adventure. Her motto is “Be the change you wish to see...” and this guides her approach in work and life. She has spent the past 18 years in the field of organisational development and specialises in organisational strategy, culture and change.

Tania has experience in designing leadership programs, change management, strategic planning, performance management, coaching and debriefing, organisational design and development.

Tania is an experienced facilitator and uses a range of techniques to help clients obtain outstanding strategic planning, innovation and stakeholder and community engagement outcomes. She is a highly conceptual and strategic thinker and is at her best in an environment where she can work closely with clients and stakeholders to design initiatives to create transformation either in people’s thinking or through improving organisational cultures through coaching, leadership programs and facilitating innovative thinking processes.

Tania has worked with a diverse portfolio of clients in Government, Aged Care, Health, Higher Education, Mining and Forture 500 companies. Tania is an adaptable practitioner who is capable of understanding her clients and who can tailor her approach to ensure they gain the best from their learning.

Tania holds a Master of Social Science, Social Anthropology/ Sociology, University of Waikato (NZ); a Postgraduate Diploma in Public Policy and Administration (with Distinction), University of Waikato (NZ); a Bachelor of Social Sciences (Hons), Sociology and Psychology, University of Waikato (NZ) and an Advanced Diploma in Business Management, Ballarat University.

Tania is also accredited in a number of tools and techniques such as Whole Brain Thinking (Hermann Brain Dominance Instrument); Human Instincts (Hardwired Humans) Spiral Dynamics (Practitioner Level 1 & 2) and Cynefin framework.

Michelle Tucker, Associate Consulting Psychologist

Michelle is a consulting psychologist (PhD Organisational Psychology) specialising in psychometric assessment, selection and recruitment, coaching, leadership and sales development, facilitation and outplacement. She has worked with clients from a broad range of industries, including automotive, mining, banking, finance, health care, and retail sales.

Having managed projects in both the private and public sector, Michelle has engaged in the assessment and coaching of individuals at all levels. Adopting a solution-focused approach, Michelle works with individuals and teams to develop sales and leadership skills.

Michelle has a depth of experience in psychometric assessment for both selection and development. She has also conducted psychosocial risk assessments, culture and climate surveys and employee opinion surveys. Michelle has developed high potential programs; job analyses and has also developed and refined many HR programs and processes.

A registered Psychologist, Michelle holds a PhD in Organistional Psychology.

Our Clients 


Lixivium Consulting has provided consulting services to many of Australia’s largest companies and government organisations for the past 20 years. Boasting a wide client base throughout Australia, we have worked with a number of different organisations in a variety of industries.

Although many of our most loyal clients are in the Government and Health & Community sectors, we also work across sectors such as Retail, Manufacturing, Finance, and Professional Services.