# List of public sector organisations in New Zealand

Tamtam tracks 79 public sector organisations headquartered in New Zealand. This list ranks the 50 largest by number of employees on LinkedIn, led by Health New Zealand | Te Whatu Ora, University of Otago and Department of Corrections NZ. Their median headcount is 1,267. Half of them were founded in 1983 or later. The most common headquarters are Auckland (14), Wellington (11) and Christchurch (2).

These New Zealand public sector organisations are primarily large institutions in healthcare, higher education, and government administration. Examples include Health New Zealand | Te Whatu Ora, which manages the health system, and the University of Otago, the country's oldest university. The Department of Corrections NZ works with offenders to reduce reoffending, while the Ministry of Education New Zealand advises and shapes the education system. Auckland University of Technology is a modern university fostering entrepreneurship. NZ Post provides innovative delivery solutions.

A notable pattern is the concentration of headquarters in Wellington, which is home to many government administration entities like the Department of Corrections NZ and the Ministry of Education New Zealand, as well as several other significant public bodies.

🇳🇿 New Zealand · 50 companies · Updated Nov 14, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Health New Zealand \| Te Whatu Ora](https://www.tamtam.ai/c/health-new-zealand-te-whatu-ora) (healthnz.govt.nz)<br>Te Whatu Ora manages the health system at various levels, providing hospital services, public health initiatives, primary care, and improving health outcomes in partnership with the Māori Health Authority | Hospitals and Health Care | 🇳🇿 Wellington | 9,861 | 2022 |
| 2 | [University of Otago](https://www.tamtam.ai/c/university-of-otago) (otago.ac.nz)<br>New Zealand's oldest university with a focus on research excellence and fostering innovation, attracting students from around the world Promotes open discussion and debate | Higher Education | 🇳🇿 Dunedin | 6,595 | 1869 |
| 3 | [Department of Corrections NZ](https://www.tamtam.ai/c/department-of-corrections-nz) (corrections.govt.nz)<br>A team of 10,000+ nationwide works with offenders and their families to reduce reoffending and create safer communities through behavior change | Government Administration | 🇳🇿 Pōneke Wellington | 6,198 | 1995 |
| 4 | [Ministry of Education New Zealand](https://www.tamtam.ai/c/ministry-of-education-new-zealand) (education.govt.nz)<br>The organization advises and shapes New Zealand's education system to ensure equitable outcomes, provide support for educators, and manage school property portfolios | Education Administration Programs | 🇳🇿 Wellington | 6,177 |  |
| 5 | [Auckland University of Technology](https://www.tamtam.ai/c/auckland-university-of-technology) (aut.ac.nz)<br>Innovative modern university offering exceptional learning experiences, fostering entrepreneurship, interdisciplinary research, and industry collaboration Leader in global research impact | Higher Education | 🇳🇿 Auckland | 5,039 | 2000 |
| 6 | [University of Canterbury](https://www.tamtam.ai/c/university-of-canterbury) (canterbury.ac.nz)<br>An institution established in 1873 offering a wide range of undergraduate and postgraduate courses in various subjects, with a focus on research and student accommodation | Higher Education | 🇳🇿 Christchurch | 4,766 | 1873 |
| 7 | [Massey University - Te Kunenga ki Pūrehuroa](https://www.tamtam.ai/c/massey-university-te-kunenga-ki-purehuroa) (massey.ac.nz)<br>A leading university focused on diversity, talent, and growth, offering opportunities for intellectual, professional, and personal development since 1927 | Higher Education | 🇳🇿 Palmerston North | 4,521 | 1927 |
| 8 | [Victoria University of Wellington](https://www.tamtam.ai/c/victoria-university-of-wellington) (wgtn.ac.nz)<br>Leading university in New Zealand known for high-quality research, top ranking in research excellence, and commitment to academic intensity | Higher Education | 🇳🇿 Wellington | 4,316 | 1897 |
| 9 | [The University of Waikato](https://www.tamtam.ai/c/the-university-of-waikato) (waikato.ac.nz)<br>Leading educational institution in New Zealand with a dedicated focus on providing a world-class education, fostering indigenous culture, and promoting community guidelines | Higher Education | 🇳🇿 Hamilton | 3,634 | 1964 |
| 10 | [Health New Zealand \| Te Toka Tumai Auckland](https://www.tamtam.ai/c/health-new-zealand-te-toka-tumai-auckland) (adhb.health.nz)<br>The company provides health and disability services to over half a million people in Auckland, Northland, and nationwide, including hospital care and community support | Hospitals and Health Care | 🇳🇿 Auckland | 3,315 |  |
| 11 | [NZ Transport Agency Waka Kotahi](https://www.tamtam.ai/c/nz-transport-agency-waka-kotahi) (nzta.govt.nz)<br>Management and innovation of New Zealand's national land transport system ensuring safety, efficiency, sustainability, and connectivity for people and businesses. | Government Administration | 🇳🇿 Wellington | 2,863 | 2008 |
| 12 | [ACC New Zealand](https://www.tamtam.ai/c/acc-new-zealand) (acc.co.nz)<br>Innovative New Zealand organization focused on preventing accidents, providing care, and supporting recovery for the people of New Zealand | Government Administration | 🇳🇿 Wellington | 2,842 | 1974 |
| 13 | [NZ Post](https://www.tamtam.ai/c/nz-post) (nzpost.co.nz)<br>Delivery partner for a digital world, providing innovative solutions for businesses through a state-of-the-art processing operation and efficient delivery services | Freight and Package Transportation | 🇳🇿 Wellington | 2,799 | 1840 |
| 14 | [KiwiRail](https://www.tamtam.ai/c/kiwirail) (kiwirail.co.nz)<br>A leading integrated transport network and tourism operator in New Zealand, committed to safety, wellbeing, and providing world-class service to customers | Truck Transportation | 🇳🇿 Wellington | 2,665 | 2008 |
| 15 | [Health New Zealand \| Waikato](https://www.tamtam.ai/c/health-new-zealand-waikato) (waikatodhb.health.nz)<br>Management and operation of daily healthcare services ensuring accessible and effective medical support for the Waikato region community. | Hospitals and Health Care | 🇳🇿 Hamilton | 2,558 | 2001 |
| 16 | [Health New Zealand \| Counties Manukau](https://www.tamtam.ai/c/health-new-zealand-counties-manukau) (countiesmanukau.health.nz)<br>Counties Manukau Health provides health and disability services to over 500,000 residents through collaboration, funding, hospital services, and health promotion initiatives, prioritizing health equity | Hospitals and Health Care | 🇳🇿 Auckland | 2,554 |  |
| 17 | [Health New Zealand \| Waitematā](https://www.tamtam.ai/c/health-new-zealand-waitemata) (waitematadhb.govt.nz)<br>Health New Zealand - Waitemata provides healthcare services to over 650,000 residents in Auckland's North Shore, Waitakere, and Rodney districts, including hospitals, mental health facilities, and community health services | Hospitals and Health Care | 🇳🇿 Auckland | 2,500 |  |
| 18 | [Unitec](https://www.tamtam.ai/c/unitec-auckland) (unitec.ac.nz)<br>They offer a range of educational programs, including certificates, diplomas, and degrees, to prepare individuals for various professional and vocational careers | Higher Education | 🇳🇿 Auckland | 2,477 |  |
| 19 | [Health New Zealand \| Capital, Coast and Hutt Valley](https://www.tamtam.ai/c/health-new-zealand-capital-coast-and-hutt-valley) (healthnz.govt.nz)<br>A health district in Wellington with over 6,000 staff, operating three hospitals and a health center, providing healthcare services in the region | Hospitals and Health Care | 🇳🇿 Wellington | 2,373 | 1947 |
| 20 | [Auckland Transport](https://www.tamtam.ai/c/auckland-transport) (at.govt.nz)<br>Planning and funding local public transport, operating roading network, managing parking and traffic systems in Auckland region. | Government Administration | 🇳🇿 Auckland | 2,206 | 2010 |
| 21 | [Kāinga Ora - Homes and Communities](https://www.tamtam.ai/c/kainga-ora-homes-and-communities) (kaingaora.govt.nz)<br>Kāinga Ora – Homes and Communities focuses on providing affordable housing, addressing homelessness, and partnering for quality urban development projects in New Zealand | Government Administration | 🇳🇿 Wellington | 1,657 | 2019 |
| 22 | [Fire and Emergency NZ](https://www.tamtam.ai/c/fire-and-emergency-nz) (fireandemergency.nz)<br>A national organization dedicated to firefighting and emergency response, working to protect communities through prevention, preparedness, and disaster recovery efforts | Public Safety | 🇳🇿 Wellington | 1,508 | 2017 |
| 23 | [Te Wānanga o Aotearoa](https://www.tamtam.ai/c/te-wananga-o-aotearoa) (ac.nz)<br>A large tertiary education provider in New Zealand offering a wide range of qualifications to people of all ages and backgrounds | Higher Education | 🇳🇿 Te Awamutu | 1,485 | 1983 |
| 24 | [Health New Zealand \| Southern](https://www.tamtam.ai/c/health-new-zealand-southern) (healthnz.govt.nz)<br>Leading the health system in New Zealand's Southern region, providing high-quality, patient-centered health services and working to improve health outcomes for all | Hospitals and Health Care | 🇳🇿 Dunedin | 1,345 |  |
| 25 | [Capital & Coast District Health Board](https://www.tamtam.ai/c/capital-and-coast-district-health-board) (ccdhb.org.nz)<br>Operates three hospitals and a health center, employing over 6,000 staff in the Wellington region, serving Capital, Coast, and Hutt Valley | Hospitals and Health Care | 🇳🇿 Wellington South | 1,267 | 1847 |
| 26 | [Watercare Services Limited](https://www.tamtam.ai/c/watercare-services-limited) (watercare.co.nz)<br>Provides lifeline services, drinking water, wastewater treatment, and infrastructure planning for Aucklanders, protecting the environment, without chemicals, safely returning it. | Utilities | 🇳🇿 Auckland | 1,205 |  |
| 27 | [New Zealand Trade and Enterprise](https://www.tamtam.ai/c/new-zealand-trade-and-enterprise) (nzte.govt.nz)<br>Providing market insights, research, news, and resources to support international growth of businesses in New Zealand, ultimately benefiting the country's economy | International Trade and Development | 🇳🇿 Auckland | 1,148 | 2003 |
| 28 | [AsureQuality](https://www.tamtam.ai/c/asurequality) (asurequality.com)<br>As food guardians, we support New Zealand's food industry by upholding high quality and safety standards, with a focus on collaboration and sustainability | Food and Beverage Services | 🇳🇿 Auckland | 1,096 | 2007 |
| 29 | [Manukau Institute of Technology](https://www.tamtam.ai/c/manukau-institute-of-technology) (manukau.ac.nz)<br>An educational institution offering business programs as a division of New Zealand's Institute of Skills and Technology | Education Administration Programs | 🇳🇿 Manukau | 1,073 | 1973 |
| 30 | [TVNZ](https://www.tamtam.ai/c/tvnz) (tvnz.co.nz)<br>A diverse group of passionate individuals at Te Reo Tātaki (TVNZ) inspire conversations in Aotearoa by sharing stories and connecting people through powerful kōrero | Broadcast Media Production and Distribution | 🇳🇿 Auckland | 994 | 1960 |
| 31 | [Te Whatu Ora Te Pae Hauora o Ruahine o Tararua MidCentral](https://www.tamtam.ai/c/te-whatu-ora-te-pae-hauora-o-ruahine-o-tararua-midcentral) (midcentraldhb.govt.nz)<br>Health organization in New Zealand serving the Ruahine and Tararua regions with a focus on holistic well-being and healthcare services | Hospitals and Health Care | 🇳🇿 Palmerston North | 988 |  |
| 32 | [Wintec - Waikato Institute of Technology](https://www.tamtam.ai/c/wintec-waikato-institute-of-technology) (wintec.ac.nz)<br>Provides vocational education and training with real-life projects, work placements, and strong community and cultural partnerships for learner success. | Higher Education | 🇳🇿 Hamilton | 928 | 1924 |
| 33 | [Otago Polytechnic](https://www.tamtam.ai/c/otago-polytechnic) (op.ac.nz)<br>A leader in career-focused education, research, and sustainability, partnering with industries to find creative solutions, while promoting diversity and inclusion | Higher Education | 🇳🇿 Dunedin | 910 |  |
| 34 | [Whitireia and WelTec](https://www.tamtam.ai/c/whitireia-and-weltec) (whitireiaweltec.ac.nz)<br>A leading tertiary institution in New Zealand offering industry-led qualifications, training over 14,000 students annually in a range of programs from trades to postgraduate levels | Higher Education | 🇳🇿 Petone | 881 |  |
| 35 | [Health New Zealand \| Nelson Marlborough](https://www.tamtam.ai/c/health-new-zealand-nelson-marlborough) (nmdhb.govt.nz)<br>Health New Zealand - Nelson Marlborough is a major healthcare provider in the region, serving 145,000 people with hospitals, public health services, and community programs | Hospitals and Health Care | 🇳🇿 Nelson | 867 |  |
| 36 | [Open Polytechnic of New Zealand](https://www.tamtam.ai/c/open-polytechnic-of-new-zealand) (openpolytechnic.ac.nz)<br>Specialist in distance learning, offering education opportunities to over 30,000 students in New Zealand and 40+ countries worldwide | Higher Education | 🇳🇿 Lower Hutt | 866 | 1946 |
| 37 | [Ara Institute of Canterbury](https://www.tamtam.ai/c/ara-institute-of-canterbury) (ara.ac.nz)<br>A tertiary institute offering world-class education, industry-relevant skills, and real-world experience to prepare students for successful careers | Education | 🇳🇿 Christchurch | 848 | 1901 |
| 38 | [Health New Zealand \| Bay of Plenty](https://www.tamtam.ai/c/health-new-zealand-bay-of-plenty) (info.health.nz)<br>Provides healthcare services to a population of 200,000 in New Zealand, with a focus on enabling communities to achieve good health and independence | Hospitals and Health Care | 🇳🇿 Tauranga | 830 |  |
| 39 | [Health New Zealand \| Te Tai Tokerau Northland](https://www.tamtam.ai/c/health-new-zealand-te-tai-tokerau-northland) (healthnz.govt.nz)<br>A national health agency in Northland, providing health and disability services to 151,000 people Committed to improving population health and reducing inequities | Hospitals and Health Care | 🇳🇿 Whangarei | 806 |  |
| 40 | [The New Zealand Institute for Plant and Food Research Limited](https://www.tamtam.ai/c/the-new-zealand-institute-for-plant-and-food-research-limited) (plantandfood.com)<br>Innovative science-based solutions for sustainable food production, focusing on improving yields, nutrition, biosecurity, and reducing waste for a better future | Research Services | 🇳🇿 Auckland | 713 | 2008 |
| 41 | [Eastern Institute of Technology](https://www.tamtam.ai/c/eastern-institute-of-technology) (eit.ac.nz)<br>A public tertiary education institution in New Zealand's Hawke's Bay and Gisborne region, offering practical skills-based programs with real-world experience | Higher Education | 🇳🇿 Napier | 658 | 1975 |
| 42 | [Airways New Zealand](https://www.tamtam.ai/c/airways-new-zealand) (airways.co.nz)<br>Providing air navigation services across 30 million square kilometres of airspace, ensuring safe travel for all aircraft in New Zealand. | Airlines and Aviation | 🇳🇿 | 657 |  |
| 43 | [RNZ](https://www.tamtam.ai/c/rnz) (rnz.co.nz)<br>This company operates multiple radio networks, including national, concert, and AM networks, as well as a shortwave service and news division, providing independent radio programs in New Zealand | Broadcast Media Production and Distribution | 🇳🇿 Wellington | 653 | 1925 |
| 44 | [Health New Zealand \| Taranaki](https://www.tamtam.ai/c/health-new-zealand-taranaki) (tdhb.org.nz)<br>Provision of personal health, public health, and disability support services for geographically defined populations in the Taranaki region. | Hospitals and Health Care | 🇳🇿 New Plymouth | 611 |  |
| 45 | [Reserve Bank of New Zealand](https://www.tamtam.ai/c/reserve-bank-of-new-zealand) (rbnz.govt.nz)<br>Central bank ensuring economic wellbeing, stable inflation, sustainable employment, sound financial system, cash supply, and secure payment services for New Zealand. | Banking | 🇳🇿 | 591 |  |
| 46 | [UCOL](https://www.tamtam.ai/c/ucol) (ucol.ac.nz)<br>A provider of tertiary education with campuses in Manawatū, Whanganui, Wairarapa, and Horowhenua | Higher Education | 🇳🇿 Palmerston North | 582 |  |
| 47 | [Toi Ohomai Institute of Technology](https://www.tamtam.ai/c/toi-ohomai-institute-of-technology) (toiohomai.ac.nz)<br>Leading tertiary education provider in New Zealand's Bay of Plenty and South Waikato regions, offering a wide range of courses to domestic and international students | Education Administration Programs | 🇳🇿 Tauranga | 575 | 2016 |
| 48 | [NIWA](https://www.tamtam.ai/c/niwa) (niwa.co.nz)<br>Leading research institute in New Zealand focusing on water and atmosphere, enhancing economic value, sustainable management, climate understanding, resilience, and biodiversity | Research Services | 🇳🇿 Auckland | 569 | 1992 |
| 49 | [Tātaki Auckland Unlimited](https://www.tamtam.ai/c/tataki-auckland-unlimited) (aucklandunlimited.com)<br>Economic development agency driving prosperity in Auckland through attracting visitors, investment, fostering entrepreneurship, supporting businesses, showcasing city, and creating jobs | Government Administration | 🇳🇿 Auckland | 565 | 2010 |
| 50 | [Kordia](https://www.tamtam.ai/c/kordia) (kordia.co.nz)<br>A leading provider of mission-critical technology solutions including connectivity, infrastructure, cyber security, field services, media, safety of life services, and more | Telecommunications | 🇳🇿 Auckland | 563 |  |

## How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 14, 2026.

## More company lists in New Zealand

- [The largest companies in New Zealand](https://www.tamtam.ai/l/largest-companies-new-zealand) (839)
- [Multinational companies in New Zealand](https://www.tamtam.ai/l/multinational-companies-new-zealand) (146)
- [Retail chains in New Zealand](https://www.tamtam.ai/l/retail-chains-new-zealand) (101)
- [Critical infrastructure operators in New Zealand](https://www.tamtam.ai/l/critical-infrastructure-operators-new-zealand) (100)
- [Manufacturers in New Zealand](https://www.tamtam.ai/l/manufacturers-new-zealand) (61)
- [Education providers in New Zealand](https://www.tamtam.ai/l/education-companies-new-zealand) (59)
- [Government Administration companies in New Zealand](https://www.tamtam.ai/l/government-administration-companies-new-zealand) (57)
- [Companies with a mobile app in New Zealand](https://www.tamtam.ai/l/companies-with-mobile-app-new-zealand) (53)
- [Hospitals and Health Care companies in New Zealand](https://www.tamtam.ai/l/hospitals-and-health-care-companies-new-zealand) (50)
- [Healthcare providers in New Zealand](https://www.tamtam.ai/l/healthcare-providers-new-zealand) (49)
- [Professional services firms in New Zealand](https://www.tamtam.ai/l/professional-services-firms-new-zealand) (49)
- [Financial services firms in New Zealand](https://www.tamtam.ai/l/financial-services-firms-new-zealand) (48)
- [Companies with in-house R&D in New Zealand](https://www.tamtam.ai/l/r-and-d-companies-new-zealand) (43)
- [IT Services and IT Consulting companies in New Zealand](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-new-zealand) (43)
- [Publicly traded companies in New Zealand](https://www.tamtam.ai/l/publicly-traded-companies-new-zealand) (36)
- [Corporate groups and holding companies in New Zealand](https://www.tamtam.ai/l/holding-companies-new-zealand) (35)
- [Food and beverage companies in New Zealand](https://www.tamtam.ai/l/food-and-beverage-companies-new-zealand) (34)
- [Construction companies in New Zealand](https://www.tamtam.ai/l/construction-companies-new-zealand) (34)
- [Financial Services companies in New Zealand](https://www.tamtam.ai/l/financial-services-companies-new-zealand) (34)
- [Distributors and wholesalers in New Zealand](https://www.tamtam.ai/l/distributors-and-wholesalers-new-zealand) (34)
- [Retail companies in New Zealand](https://www.tamtam.ai/l/retail-companies-new-zealand) (33)
- [Food and Beverage Services companies in New Zealand](https://www.tamtam.ai/l/food-and-beverage-services-companies-new-zealand) (32)
- [SaaS companies in New Zealand](https://www.tamtam.ai/l/saas-companies-new-zealand) (31)
- [Higher Education companies in New Zealand](https://www.tamtam.ai/l/higher-education-companies-new-zealand) (29)

## The same list elsewhere

- [Public sector organisations in the world](https://www.tamtam.ai/l/public-sector-organisations-in-the-world) (18,492)

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Source: https://www.tamtam.ai/l/public-sector-organisations-new-zealand