This selection of public sector organizations in Wales is dominated by healthcare and education providers. Notable entities include Cardiff and Vale University Health Board, a major healthcare provider in Cardiff, and Hywel Dda University Health Board, which serves West Wales. Prifysgol Cymru Y Drindod Dewi Sant / University of Wales Trinity Saint David is a long-established university. Transport for Wales manages rail services, and The Royal Mint produces coins and gifts. Most of these organizations are large public bodies serving broad community needs.
A clear pattern is the prevalence of health boards, indicating a strong public healthcare infrastructure. Many organizations, such as Public Health Wales and Digital Health and Care Wales, are headquartered in Cardiff, suggesting a concentration of administrative and strategic functions in the capital.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Cardiff and Vale University Health Boardcavuhb.nhs.wales
Healthcare provider offering a wide range of services to a local population of 500,000, with over 100 specialist services for the region and beyond |
3,110 | |||
| 2 |
Hywel Dda University Health Boardhduhb.nhs.wales
Healthcare provider in West Wales offering a range of services including acute, primary, community, mental health, and learning disabilities for the local population Contact for recruiting queries |
2,421 | |||
| 3 |
Prifysgol Cymru Y Drindod Dewi Sant / University of Wales Trinity Saint Daviduwtsd.ac.uk
A prestigious university in Wales, offering a dual-sector approach to education with a focus on benefiting learners, employers, and communities |
1,960 | |||
| 4 |
Cwm Taf Morgannwg University Health Boardctmuhb.nhs.wales
Provider of primary, secondary, and community health services to over 450,000 people in Wales, emphasizing respect, teamwork, and continuous improvement |
1,882 | |||
| 5 |
Transport for Walestfw.wales
Management and operation of passenger rail services across Wales, focusing on improving connectivity, reliability, and customer experience. |
1,870 | |||
| 6 |
Welsh Ambulance Services University NHS Trustambulance.nhs.wales
A Wales-based healthcare organization providing emergency medical services, telephone healthcare, advice, information via NHS 111 Wales, and non-emergency patient transport |
1,677 | |||
| 7 |
Public Health Walespublichealthwales.wales.nhs.uk
A national NHS organization in Wales working to protect and improve health, reduce inequalities, and provide public health services and knowledge |
1,298 | |||
| 8 |
Cyfoeth Naturiol Cymru / Natural Resources Walesnaturalresources.wales
Sustainable management and improvement of natural resources in Wales for current and future use |
1,257 | |||
| 9 |
Gower College Swanseagcs.ac.uk
A large further education college in Swansea offering a wide range of full-time and part-time courses, including A Levels, vocational subjects, higher education, and apprenticeships |
752 | |||
| 10 |
Gwent Policegwent.police.uk
Providing trusted, fair, and professional policing services to protect and reassure residents across multiple communities in Gwent area. |
745 | |||
| 11 |
Digital Health and Care Walesdhcw.nhs.wales
A national organization in Wales delivering digital health services to support doctors, nurses, and clinical professionals in providing specialist care |
739 | |||
| 12 |
Coleg y Cymoeddlinktr.ee
Providing further education to over 9,000 learners across multiple sites in Caerphilly County and Rhondda Cynon Taff. |
663 | |||
| 13 |
The Royal Mintroyalmint.com
Leading British maker of original coin collections, gifts, and currency solutions, offering eye-opening experiences, investment opportunities, and special moment celebrations |
627 | |||
| 14 |
South Wales Fire and Rescue Servicesouthwales-fire.gov.uk
Collaborative fire and rescue team providing protection and safety for South Wales, focusing on innovation and excellence for future challenges. |
600 | |||
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| 15 |
NHS Wales Shared Services Partnershipnwssp.nhs.wales
The company provides a comprehensive range of high-quality support functions and services for NHS Wales, emphasizing customer-focused assistance |
540 | |||
| 16 |
Heddlu Dyfed-Powys Policedyfed-powys.police.uk
A police service in Wales safeguarding residents and tourists in the counties of Carmarthenshire, Ceredigion, Pembrokeshire, and Powys |
540 | |||
| 17 |
Coleg Penybont | Bridgend Collegebridgend.ac.uk
provides education and training for school leavers and mature students, recognized as a top inclusive and best workplace in UK |
516 | |||
| 18 |
Powys Teaching Health Board / Bwrdd Iechyd Addysgu Powyspthb.nhs.wales
A healthcare organization in Wales, providing NHS services to residents of Powys county |
516 | |||
| 19 |
BCUHB Digital, Data and Technologybcuhb.nhs.wales
Delivering innovative informatics services to clinicians and stakeholders, creating a virtual patient-focused environment for safe, high-quality care within the Health Board |
491 | |||
| 20 |
Careers Walescareerswales.gov.wales
A Welsh Government-funded organization providing free careers information and support for individuals, as well as offering services for employers and educational partnerships |
466 | |||
| 21 |
Amgueddfa Cymru β Museum Walesmuseum.wales
A national museum organization in Wales, providing free access to museums showcasing local industries, treasures, and everyday life stories Join, volunteer, or donate to support |
440 | |||
| 22 |
GrΕ΅p Colegau NPTC Group of Collegesnptcgroup.ac.uk
A leading education provider in Wales offering a wide range of full-time, part-time, and higher education courses across 9 sites #BeYourFuture |
434 | |||
| 23 |
Health Education and Improvement Wales (HEIW)/Addysg a Gwella Iechyd Cymru (AaGIC)heiw.nhs.wales
A leading organization in NHS Wales, specializing in education, training, and development of healthcare workforce to ensure high-quality care for the people of Wales |
421 | |||
| 24 |
North Wales Fire and Rescue Servicenorthwalesfire.gov.wales
A fire and rescue service in North Wales protecting over 678,000 residents, numerous tourists, and properties through 44 fire stations Employing nearly 1,000 staff |
330 | |||
| 25 |
Transport for Wales Rail/ Trafnidiaeth Cymru Gwasanaethau TrΓͺntfwrail.wales
The company is dedicated to implementing the Welsh Government's vision of a high-quality, safe, integrated, affordable, and accessible transport network in Wales |
239 | |||
| 26 |
Welsh Blood Servicewelsh-blood.org.uk
Organizes blood collection, testing, processing, and distribution to Welsh hospitals, relying on voluntary donors to maintain life-saving supplies |
222 | |||
| 27 |
Sport Walessport.wales
The national organization in Wales promotes sport and physical activity to improve health, build communities, develop skills, and support athletes |
202 | |||
| 28 |
Cardiff Buscardiffbus.com
Established in 1902, this company is the top bus operator in Cardiff, offering services within the city, Vale of Glamorgan, and to/from Newport |
196 | |||
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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 11, 2026.
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