Contact us on 07 348 3599 or by email

Our Team


Glenn Hawkins

BMS(Hons) MMS CA | Ngāti Whakaue, Ngāti Maniapoto

Before establishing this accounting and consulting practice in 2005, Glenn was Finance Manager, then General Manager, of the New Zealand Māori Arts & Crafts Institute (Te Puia). As a Chartered Accountant, he has a varied background that includes roles as management consultant with Ernst & Young and management accountant for a manufacturer and exporter. Glenn has extensive experience with Māori post-settlement governance entities (PSGEs), Māori incorporations, Māori land trusts, service providers, marae and non-profit organisations. Glenn is passionate about Māori business development and has helped numerous Māori commercial organisations in industries as diverse as tourism, agribusiness, fisheries, property, geothermal, forestry, education, health and aquaculture. He is also the Te Puni Kōkiri accredited business mentor for the Rotorua region. Glenn has governance roles with a range of client companies and Trusts and has been a fully qualified Chartered Accountant for 22 years.


Mere George

BMS CA | Ngāti Whare, Ngāti Manawa, Tūwharetoa, Ngāti Porou

Mere became a qualified Chartered Accountant in 2005, while working at Deloitte as an auditor in Risk and Assurance from graduation until early 2009.  Mere has worked with commercial entities across a broad range of industries, including Māori businesses, public sector entities, telecommunications and insurance. In 2009, Mere returned home to Rotorua working with Hulton Patchell Ltd, before joining GHA in June 2012. Mere enjoys working closely with iwi groups, Māori trusts, marae and incorporations. Mere is a conscientious and honest professional committed and passionate about Māori business and Māori economic development.

Mereana Toroa
General Manager

BCOM, CA | Ngāi Tāmanuhiri

Born and raised in the Horowhenua, Taranaki, and Waikato, Mereana has now settled in Tauranga Moana to be close to whanau. Mereana started a BMS at Waikato University, then began travelling and completed her BCom at Macquarie University, Sydney and shortly thereafter started as an audit graduate at Ernst & Young Sydney. The desire for further travel adventures then took her to the United Kingdom, where a two-year plan turned into 12 years and a wealth of entertainment experience in movies, video on demand, TV, and video game operations, distribution, and finance. Mereana is delighted to return home to Aotearoa and find a unique firm in GHA where she can focus her talents to help grow the business and dedicate her time to Māori business success. Mereana is excited to be learning te reo again, to be leading the GHA team and contributing to operational excellence for GHA clients.


Matiu Taurau
Consulting Manager

BCom CA | Rangitāne, Ngāpuhi, Ngāi Tahu, Ngāti Kahungunu

Matiu joined the GHA team in November 2015 as a management consultant bringing with him a wealth of international and local experience in business. Matiu has been a Chartered Accountant since 2008, and most recently worked for listed company Comvita as their accountant. Previously, Matiu worked as an auditor with Audit New Zealand before heading to the UK where he worked with Fortune 500 company General Electric. Matiu’s knowledge and experience spans a number of industries and sectors including agriculture, manufacturing, healthcare, retail and Māori authorities. Matiu is pleased to be lending his considerable talent, skills and energy to helping our clients succeed.

Kirsten Rei
Consulting Manager

LLB/BA | Te Māhurehure, Ngāti Rangi, Ngāti Whakaue, Ngāpuhi

Kirsten has broad Māori and government sector experience, having led a number of high profile leadership roles for both.  Born and raised in Rotorua, Kirsten initially trained as a lawyer before heading in to management roles at home in Rotorua and Wellington.  Kirsten joined the GHA team in March 2018, bringing nearly twenty years’ experience in senior management, specialising in public policy and dealing at the interface between government, communities and the various sectors that comprise the wider ecosystem of Māori development. Kirsten is committed to supporting GHA’s clients to thrive.

Oksana Kahlenberg
Accounting Manager


Oksana was born and raised in Riga, Latvia, where she completed her degree and worked as an accountant for various commercial entities.   She moved to New Zealand in 2008, and has since settled in Rotorua. Before joining the GHA team in August 2013, Oksana worked for a Chartered Accounting firm in Rotorua and Whakatane. She has several years of experience working with a variety of clients across different industries, with particular interest in education sector, including early childhood education.

Roimata Ah Sam
Accounting Manager

BCOM, CA| Ngāi Te Rangi, Waikato

Roimata returned to Tauranga Moana where she is currently based to enable her children to grow up in their mana whenua.  Roimata is a highly confident and driven accounting manager with a passion to grow Máori talent and see Máori investments become sustainable and intergenerational.  Being a kura kaupapa alumni Roimata inherently understands the importance of Máori taking charge of our own commercial destiny.  Roimata’s extensive commercial accounting experience has enabled her to simplify complex financial information to be user friendly to the non-financial eye. 

Isabelle Yee
Accounting Assistant Manager


Isabelle joined the GHA team as an accountant in May 2017.  Isabelle is originally from China and moved to New Zealand in 2003.  She completed her Bachelor of Commerce and Administration in 2006 at Victoria University majoring in accounting. Before joining the GHA team, she worked as a tax accountant at several Chartered Accountant firms in Tauranga and Rotorua. Isabelle has worked with clients in various industries, ranging from small businesses to large farms. Isabelle understands the importance of maintaining a positive client relationship and is committed with helping GHA clients to succeed.

Stacey Winiata

Stacey Winiata

BBA | Ngāti Awa, Ngāti Patumoana, Whakatōhea

Stacey joined GHA in August 2015 after graduating from the University of Waikato in 2014 with a Bachelor in Business Analysis, majoring in Accounting.  Stacey is passionate about accounting and helping clients to reach their objectives.  Her quietly conscientious and hard-working nature is attested to by her supportive whānau and already evident in her work at GHA.  GHA are pleased to be supporting Stacey on her pathway to becoming a Chartered Accountant.

Matiria Temara

Matiria Temara

NZDipBus BBA | Tūhoe, Ngāpuhi

Matiria is of Tūhoe and Ngāpuhi decent and a graduate of kōhanga reo and kura kaupapa Māori. In 2013, she graduated from the University of Waikato where she completed a Bachelor of Business Analysis majoring in Accounting.  Matiria sees her role at GHA as an opportunity to develop her skills and experience further in a professional Māori environment. GHA are pleased to be supporting Matiria on her pathway to becoming a Chartered Accountant.


Zara Morrison

BCA/BSC CA | Te Arawa, Ngāti Whakaue, Ngāti Tūwharetoa, Ngāti Turumakina

Zara grew up in Rotorua and became a qualified Chartered Accountant in 2011, while working as a tax consultant at Ernst & Young Wellington.  She then spent almost 5 years living in Germany and recently returned home with her family to join GHA in September 2016.  Zara has previous experience in tax structuring advice for Iwi PSGE’s and has a passion for helping Maori businesses succeed.  Zara is dedicated to giving back to her iwi and developing positive relationships with GHA’s clients.

Rana Sorensen

BCOM | Te Whānau-ā-Apanui and Ngāi Tai

Rana was born in Rotorua and is of Te Whānau-ā-Apanui and Ngāi Tai descent. Rana graduated from Victoria University of Wellington in 2015 with a Bachelor of Commerce majoring in Accounting, Commercial Law and Taxation. Prior to joining GHA in July 2019, Rana worked as an accountant at Deloitte, followed by a CFO role at Credit Union Central. Rana is passionate about working with Iwi and Māori organisations to help them achieve their cultural and business objectives. GHA is supporting Rana on her pathway to becoming a Chartered Accountant.

Tamaku Pau’u

BMS | Tapuika, Ngāpuhi

Tamaku was born and raised in Te Puke and is of Te Arawa and Ngāpuhi decent. She graduated with a Bachelor of Management Studies degree from the University of Waikato majoring in Accounting. Prior to working with GHA she worked at other accounting firms and worked for her iwi. A passion to grow Maori business is what led to Tamaku to join GHA. GHA is supporting Tamaku on her pathway to becoming a Chartered Accountant.

Trish Tuisea

NZDipBus |  Ngāti Porou, Ngāti Hamoa

Originally from Wellington, Trish lived in Australia for five years and Gisborne for seven years prior to moving to Rotorua in 2018. With a strong background in administration and accounts, she was inspired to obtain her NZ Diploma in Business and Open Polytech Diploma in Accounting with the support of her workplace in Gisborne at the time. She later continued studying toward a Bachelor in Business majoring in Accounting, set for completion in late 2018. Trish believes working at GHA will not only deepen her knowledge of tikanga Maori and te reo, but also further motivate her to become a Chartered Accountant with CAANZ in the near future.

Te Ana Stephen

BCom |  Ngāti Hine, Ngāpuhi

Born and raised in Wellington, Te Ana recently graduated from Victoria University with a Bachelor of Commerce, majoring in Accounting and Commercial Law. She is passionate about te ao Māori and being able to transmit that passion to her tamariki. It was her passion for Māori and learning te reo Māori that brought her to Rotorua and to GHA. Te Ana believes that immersing herself in a cultural hub like Rotorua will help further her te reo Māori journey and sees GHA as an opportunity to develop her accounting knowledge and skills in a professional Māori environment. She hopes to one day complete her chartered accountancy with the support of GHA, help to develop culturally responsive financial systems for Māori and use her skill and knowledge to give back to Māori.

Julia Fonotia
Accounts Administrator

Julia was born in Palmerston North and grew up in both Whanganui and Palmerston North.  Julia has worked in several accounts/administration roles which has given her an understanding of her role with GHA with a background in both Government and Charitable Trusts. Julia was drawn to GHA as not just another business, but one with a purpose of helping Māori succeed and enjoys the challenge of a fast-paced working environment at GHA. Julia moved to Rotorua three years ago with her husband and is a busy mum of four tamariki. Julia and her whānau enjoy learning about te ao Māori and is on her journey learning Te Reo.

Kateriina Selwyn
Management Consultant and Māori Sector Manager for CA ANZ

BMS | Ngāti Pikiao, Ngāpuhi, Tūhoe

Kateriina joined GHA in 2016 and holds a Bachelor of Management Studies (majoring in Marketing) from Te Whare Wānanga o Waikato. Alongside her role as a Management Consultant at GHA, Kateriina is contracted from GHA as the Māori Sector Manager for Chartered Accountants Australia and New Zealand, where she leads the national strategy to increase the representation of Māori within the accounting profession. With a strong interest in Māori business and Māori governance, Kateriina’s aspiration is ultimately to contribute to Māori success. Kateriina is proud that her role at GHA allows her to work with whānau, hapū and iwi, providing valuable mahi and advice.

Brook Grant
Management Consultant

BSc (Chemistry), PGDipGrad (Finance) | Ngāti Whakaue, Te Arawa

Brook joined the GHA team in 2017, bringing over 10 years’ experience in banking and financial advisory services, having worked in London, Dublin and here in New Zealand. Brook has held senior roles in Bancorp Treasury Ltd and BNZ and has professional experience in SIPO development, fixed income investment, treasury risk management strategies, financial markets trading, and financial and econometric modelling. Brook is passionate about elevating the use of te reo Māori in the commercial world, and has become the first te reo Māori financial commentator on television, delivering a fortnightly wrap of topical financial issues entirely in te reo Māori, on Te Karere. Brook is a Trustee of Tuia Charitable Trust, which is focused on empowering Māori rangatahi.

Taku-Anne Jones
Management Consultant

BCS | Te Arawa, Ngāti Tuwharetoa

Taku-Anne was born and raised in Hamilton and completed her Bachelor of Communication Studies through the University of Waikato. Taku-Anne recently joined GHA after spending several years in Australia working in marketing and leadership roles for multi-nationals and SMEs. Her experience developing go-to-market and digital marketing strategies has seen her progress her career through complex business landscapes; including manufacturing and software. Taku-Anne has relocated from Melbourne to strengthen her Reo and learn more about her Te Arawa and Ngāti Tuwharetoa whakapapa. She aims to grow the Māori economy through a commercial lens and hopes to lend her writing skills to simplifying financial information and provide insight into digital paradigms.

Camille Ware
Management Consultant

LLB | Ngāti Kahu ki Whangaroa, Ngāti Maniapoto

In 2017, Camille completed a Bachelors of Law with a second major in Te Reo Māori at the University of Waikato. After spending nearly two years in the legal profession, Camille decided to pursue a career in the Māori business sector. Camille joined the GHA team as a Management Consultant in January 2019, bringing with her a passion for te ao māori and seeing māori succeed. 

Rachel Hoffman
Board Secretary

Ngāti Pikiao

Rachel joined the GHA team in September 2017 as personal assistant to Glenn and Mere. Born and raised in Rotorua, Rachel brings a range of skills and experience to the position. Prior to working at GHA, Rachel was the receptionist and administrator at Iles Casey Chartered Accountants and before that worked as a personal assistant for a local real estate agent. With a natural affinity for people and management coupled with an eye for detail and efficiency, Rachel will enjoy the challenges that a multifaceted role brings. Rachel looks forward to growing her Te Reo Māori and enhancing her knowledge of kaupapa Māori.

Rikki-Lee Naea
Office Manager

DipHosp | Ngāpuhi

Rikki-Lee joined the GHA team in 2018. Rikki-Lee grew up in Queenstown and completed her International Diploma in Hospitality Management and Tourism before moving to Australia where she worked as an Executive Assistant at Chartered Accounting firm, KordaMentha. Rikki-Lee moved to Rotorua to be closer to her whānau and brings with her international experience.  She has an interest in the Māori Business Sector and continues to enhance her knowledge of tikanga and te reo Māori. 

Tara Sears
Personal Assistant to the Partners

Ngāti Whakaue, Ngāti Pikiao, Ngāpuhi

Born and raised in Rotorua, Tara is of Te Arawa and Ngāpuhi decent. She has previous experience as a Personal Assistant, having worked at a local law firm and is also completing her New Zealand Diploma in Business, majoring in Accounting. Tara believes her role at GHA is an opportunity to enhance her skills and knowledge while gaining experience in a professional Māori environment. She is also passionate about Te Ao Māori and furthering her knowledge in Te Reo Māori.

Alana Hay
Personal Assistant to Consulting Managers

BA |Ngāti Pikiao

Alana was born in and grew up in Auckland. In 2018 she completed a Bachelor of Arts at the University of Auckland with a major in Māori Studies. Having grown up away from her iwi and hapū, Alana decided to move to Rotorua to learn more about her own history and culture. Alana is passionate about Māori language and culture, and was excited to start work at GHA which will help her to be even more immersed in Te Ao Māori. She hopes GHA will help to really advance her professional skills in a Māori environment.

Wendy Schultz
Personal Assistant to the Accounting Manager

Wendy and her husband moved from Auckland to Rotorua in 2015 after many years of taking holidays here.  She has worked in a number of different industries including Legal, Manufacturing, Property Management and the Health Sector in the UK.  Wendy is looking forward to learning about the Māori language and customs, and contributing to the GHA team.

Nero Panapa
Share Registry Administrator

Tūhourangi, Ngāti Pikiahu Waewae, Ngāti Pūkeko, Ngāti Whātua

Born and raised in Rotorua hailing from the small village of Te Whakarewarewa.  Nero’s journey in tribal registers began in 2010 where he was asked to audit the state of the Te Pūmautanga o Te Arawa beneficiary register.  What started as a two-month contract quickly turned into a full-time position maintaining the beneficiary register for the post settlement entity.  In 2014 Nero moved to Deloitte Rotorua as the Share Registry Assistant focussing on shareholder grants, payments and successions.  Here he also became a cultural liaison for the other Deloitte offices in Auckland and Wellington where specialised skills were required for some of the total immersion clients.  Nero joined the team at GHA in February 2018 and is the Share Registry Administrator.  Nero realises that the key to success is to share knowledge and empower our people by making sound decisions based on a blend of traditional and contemporary mindset. Nero encourages Te Reo across the office and speaks fluently.

Jasmine Manley
Office Administrator

NZDipMāori | Ngāti Whakaue, Ngāti Takihiku, Maniapoto (Ngāti Matakore)

Born and raised in Rotorua, Jasmine is of Te Arawa, Raukawa and Maniapoto decent. She has a background in Administration with a passion for Māori development and Te Reo Rangatira. She is determined to complete her bachelor’s degree in the near future and give back to her iwi/hāpū. Jasmine looks forward to helping Māori enterprises and organisations succeed and develop in this front line role.

Jason Mika

Dr Jason Mika

BMS(Hons) MPP PhD | Tūhoe, Ngāti Awa, Whakatōhea, Ngāti Kahungunu

Jason has been a consultant for GHA since the company was formed. Jason specialises in Māori enterprise development and Māori organisational development. Jason’s strengths are in developing strategies, plans and policies to help Māori enterprises and Māori organisations succeed. He was raised in Rotorua and has completed consultancy assignments for Māori organisations locally and across the motu. Jason is a senior lecturer in the School of Management, Massey University in Palmerston North and co-director of Te Au Rangahau, Māori Business & Leadership Research Centre. Jason provides consulting services as an independent management and associate of GHA.

Brigette Arnold

BA(Hons) PGDipGrad (Economics)

Brigette has worked in the financial industry for over 15 years, across markets in the UK, Europe, Asia, North America, Middle East and Australasia. Brigette firmly believes in strong, face-to-face communication to strengthen relationships and identify the present and future needs of investors. Brigette has worked for 10 years at UK-based MVision Private Equity Advisers, managing private equity fund-raisings for global clients and as the lead relationship manager for Asian, Australian and New Zealand institutional investors. Since 2011, she has filled senior roles at Fisher Funds and Knox Investment Partners and is a former council member of the New Zealand Venture Capital Association.