# List of public sector organisations in Croatia

Tamtam tracks 36 public sector organisations headquartered in Croatia. This list ranks all of them by number of employees on LinkedIn, led by INA Grupa, HEP and FER. Their median headcount is 461. Half of them were founded in 1962 or later. The most common headquarters are Zagreb (25).

These Croatian public sector organizations are primarily large institutions, many with over 1,000 employees. The list includes key players in essential services like INA Grupa, which handles oil and gas, and HEP, the national electricity provider. Other prominent organizations are HRT, the national public media institution, and Croatia Airlines, the national air carrier.

A significant pattern is the concentration of headquarters in Zagreb, indicating the capital city's role as a central hub for these entities. Furthermore, higher education and healthcare are well-represented, with institutions such as FER, Medicinski fakultet Sveučilišta u Zagrebu, and University Hospital Centre Zagreb. The Ruđer Bošković Institute also contributes to scientific research.

🇭🇷 Croatia · 36 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [INA Grupa](https://www.tamtam.ai/c/ina-grupa) (ina.hr)<br>Oil and gas exploration, production, refining, distribution, and operates a regional network of service stations in Croatia and neighboring countries. | Oil and Gas | 🇭🇷 Zagreb | 4,540 | 1964 |
| 2 | [HEP](https://www.tamtam.ai/c/hep) (hep.hr)<br>National electricity provider with over a century of experience in production, transmission, distribution, heat supply, and gas distribution through a holding structure | Appliances, Electrical, and Electronics Manufacturing | 🇭🇷 Zagreb | 2,058 | 1884 |
| 3 | [FER](https://www.tamtam.ai/c/fer) (fer.unizg.hr)<br>Leading Croatian higher education institution specializing in electrical engineering, computer science, and ICT with over 4,000 students and 700 staff members | Higher Education | 🇭🇷 Zagreb | 1,759 | 1956 |
| 4 | [HRT](https://www.tamtam.ai/c/hrt) (hrt.hr)<br>A national public media institution in Croatia providing a diverse range of programs including news, sports, culture, and educational content through traditional and digital platforms | Broadcast Media Production and Distribution | 🇭🇷 Zagreb | 1,658 | 1926 |
| 5 | [University Hospital Centre Zagreb, Croatia](https://www.tamtam.ai/c/university-hospital-centre-zagreb-croatia) (kbc-zagreb.hr)<br>Leader in medical procedures and diagnostic methods, offering top-quality therapeutic procedures Operates 50+ referral centers of excellence, introducing innovative treatments like gamma knife radiosurgery and laparoscopic surgery | Hospitals and Health Care | 🇭🇷 Zagreb | 1,201 |  |
| 6 | [Medicinski fakultet Sveučilišta u Zagrebu](https://www.tamtam.ai/c/medicinski-fakultet-sveucilista-u-zagrebu) (mef.hr)<br>Leading institution for medical training and research in South-East Europe, with focus on international collaborations and research in various medical fields | Higher Education | 🇭🇷 Zagreb | 1,110 | 1917 |
| 7 | [Financijska agencija - Fina](https://www.tamtam.ai/c/financijska-agencija-fina) (fina.hr)<br>Leading Croatian provider of financial and electronic services, operating on a market principle, collaborating with banks, institutions, and businesses on various projects nationwide | Financial Services | 🇭🇷 Zagreb | 903 |  |
| 8 | [Ruđer Bošković Institute](https://www.tamtam.ai/c/ruder-boskovic-institute) (irb.hr)<br>Leading Croatian scientific institute conducting research in natural, biomedical, marine, and environmental sciences Participates in international research projects and houses 550 scientists | Research Services | 🇭🇷 Zagreb | 804 | 1950 |
| 9 | [Croatia Airlines](https://www.tamtam.ai/c/croatia-airlines) (croatiaairlines.com)<br>National air carrier operating domestic and international flights with a focus on safety, service quality, promoting Croatian culture and tourism Offering inflight services and maintaining highest safety standards | Airlines and Aviation | 🇭🇷 Zagreb | 790 | 1989 |
| 10 | [University of Zagreb / Sveučilište u Zagrebu](https://www.tamtam.ai/c/university-of-zagreb-sveuciliste-u-zagrebu) (unizg.hr)<br>Leading Croatian university offering a wide range of academic programs in arts, biomedicine, engineering, humanities, natural sciences, and social sciences Specializes in teaching and research | Higher Education | 🇭🇷 Novi Zagreb - Zapad | 744 | 1669 |
| 11 | [Hrvatska pošta](https://www.tamtam.ai/c/hrvatska-posta) (posta.hr)<br>A leading provider of logistics and postal services in Croatia, dedicated to meeting present and future customer needs with high quality services | Freight and Package Transportation | 🇭🇷 Velika Gorica | 721 | 1999 |
| 12 | [Sestre milosrdnice University Hospital Center](https://www.tamtam.ai/c/sestre-milosrdnice-university-hospital-center) (kbcsm.hr)<br>A leading healthcare institution in Croatia, offering a wide range of medical services, scientific activities, and hosting educational facilities | Hospitals and Health Care | 🇭🇷 Zagreb | 685 | 1846 |
| 13 | [Croatian National Bank](https://www.tamtam.ai/c/croatian-national-bank) (hnb.hr)<br>A central bank part of the Eurosyste, responsible for maintaining price stability and financial system stability, and participates in the EU monetary policy implementation | Government Administration | 🇭🇷 Zagreb | 642 | 1990 |
| 14 | [KBC Split](https://www.tamtam.ai/c/kbc-split) (kbsplit.hr)<br>A leading hospital center in Croatia with three locations, providing specialized medical care, inpatient services, and medical research activities | Hospitals and Health Care | 🇭🇷 Split | 582 |  |
| 15 | [Faculty of Economics & Business Zagreb](https://www.tamtam.ai/c/faculty-of-economics-and-business-zagreb) (efzg.unizg.hr)<br>Leading institution of higher education specializing in entrepreneurial education with a focus on research and producing highly qualified experts Triple crown accredited | Higher Education | 🇭🇷 Zagreb | 534 | 1920 |
| 16 | [University of Zadar](https://www.tamtam.ai/c/university-of-zadar) (unizd.hr)<br>An academic institution in Croatia offering a wide range of undergraduate, graduate, doctoral, and specialist programs in diverse fields | Higher Education | 🇭🇷 Zadar | 532 | 2002 |
| 17 | [Hrvatski zavod za mirovinsko osiguranje (HZMO) - Croatian Pension Insurance Institute](https://www.tamtam.ai/c/hrvatski-zavod-za-mirovinsko-osiguranje-hzmo-croatian-pension-insurance) (mirovinsko.hr)<br>A public institution in Croatia implementing pension insurance based on generational solidarity, ensuring legality, timeliness, and quality of service through modern technology | Government Administration | 🇭🇷 Zagreb | 490 | 1922 |
| 18 | [Clinical hospital Osijek](https://www.tamtam.ai/c/clinical-hospital-osijek) (kbco.hr)<br>The public hospital in eastern Croatia offers a wide range of medical services including surgery, internal medicine, pediatrics, gynecology, oncology, and neurology | Hospitals and Health Care | 🇭🇷 Osijek | 461 | 1875 |
| 19 | [Hrvatski zavod za zapošljavanje (HZZ) - Croatian Employment Service (CES)](https://www.tamtam.ai/c/hrvatski-zavod-za-zaposljavanje-hzz-croatian-employment-service-ces) (hzz.hr)<br>A public institution in Croatia addressing employment and unemployment issues through mediation and development of the labor market | Government Administration | 🇭🇷 Zagreb | 436 | 1906 |
| 20 | [APIS IT d.o.o.](https://www.tamtam.ai/c/apis-it-d-o-o) (apis-it.hr)<br>Leading Croatian ICT agency providing support for information systems and technologies, developing crucial systems for government entities, promoting eGovernment and modern technologies | IT Services and IT Consulting | 🇭🇷 Zagreb | 415 | 2005 |
| 21 | [University of Zagreb, Faculty of Science](https://www.tamtam.ai/c/university-of-zagreb-faculty-of-science) (pmf.unizg.hr)<br>The institution offers high-quality education and conducts research in natural sciences, mathematics, and interdisciplinary areas, with a focus on innovation and international collaboration | Higher Education | 🇭🇷 Zagreb | 400 |  |
| 22 | [Hrvatske šume d.o.o.](https://www.tamtam.ai/c/hrvatske-sume-d-o-o) (hrsume.hr)<br>Our organization focuses on sustainable forest management in Croatia, aiming to raise public awareness and promote the principles of sustainable development | Paper and Forest Product Manufacturing | 🇭🇷 Zagreb | 398 | 1991 |
| 23 | [University of Rijeka - Faculty of Medicine](https://www.tamtam.ai/c/university-of-rijeka-faculty-of-medicine) (uniri.hr)<br>A prestigious institution offering education and research opportunities in the field of medicine, with a focus on student engagement and scientific excellence | Medical Practices | 🇭🇷 Rijeka | 395 | 1955 |
| 24 | [Zagrebački holding d.o.o.](https://www.tamtam.ai/c/zagrebacki-holding-d-o-o) (zgh.hr)<br>A diversified group specializing in gas distribution, waste management, water services, road maintenance, property management, parking services, pharmaceuticals, and infrastructure development | Government Administration | 🇭🇷 Zagreb | 386 | 2006 |
| 25 | [Faculty of Humanities and Social Sciences, University of Zagreb](https://www.tamtam.ai/c/faculty-of-humanities-and-social-sciences-university-of-zagreb) (web2020.ffzg.unizg.hr)<br>Leading Croatian institution offering a wide range of academic degrees in humanities and social sciences, promoting interdisciplinary studies for practical applicability | Higher Education | 🇭🇷 Zagreb | 365 | 1874 |
| 26 | [School of Medicine University of Zagreb](https://www.tamtam.ai/c/school-of-medicine-university-of-zagreb) (mef.unizg.hr)<br>An internationally recognized academic institution offering graduate, doctoral, and specialist programs in biomedicine, healthcare, nursing, and neuroscience, focusing on excellence in education and research | Higher Education | 🇭🇷 Zagreb | 358 | 1917 |
| 27 | [University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture](https://www.tamtam.ai/c/university-of-zagreb-faculty-of-mechanical-engineering-and-naval-architecture) (linktr.ee)<br>Leading institution in mechanical, naval, and aeronautical engineering education, research, and expertise, with a century-old tradition of producing skilled engineers | Higher Education | 🇭🇷 Zagreb | 349 | 1919 |
| 28 | [Croatia Control](https://www.tamtam.ai/c/croatia-control) (crocontrol.hr)<br>CCL provides air navigation services in Croatia, ensuring air traffic safety and compliance with international regulations and standards | Airlines and Aviation | 🇭🇷 Velika Gorica | 349 | 1992 |
| 29 | [University of Split](https://www.tamtam.ai/c/university-of-split) (unist.hr)<br>A large educational institution offering a wide range of undergraduate, graduate, and postgraduate study programs to approximately 20,000 students | Education Administration Programs | 🇭🇷 Split | 347 | 1974 |
| 30 | [Sveučilište u Rijeci / University of Rijeka](https://www.tamtam.ai/c/sveuciliste-u-rijeci-university-of-rijeka) (uniri.hr)<br>A university in Rijeka, Croatia that focuses on strategic decision-making, international competitiveness, collaboration with sectors, and promoting a knowledge-based society | Higher Education | 🇭🇷 Rijeka | 290 | 1973 |
| 31 | [HOPS Croatian Transmission System Operator Plc.](https://www.tamtam.ai/c/hops-croatian-transmission-system-operator-plc) (hops.hr)<br>Provider of electricity transmission and maintenance services in Croatia, focused on operating and expanding the national transmission network for secure and cost-effective energy supply | Utilities | 🇭🇷 Zagreb | 270 | 2013 |
| 32 | [Faculty of Transport and Traffic Sciences](https://www.tamtam.ai/c/faculty-of-transport-and-traffic-sciences) (fpz.unizg.hr)<br>Higher education institution specializing in transportation, logistics, and aeronautics training, fostering independent thinking, problem-solving skills, and professional values in students | Higher Education | 🇭🇷 Zagreb | 202 | 1962 |
| 33 | [HAMAG-BICRO - Croatian agency for SMEs, Innovations and Investments](https://www.tamtam.ai/c/hamag-bicro-croatian-agency-for-smes-innovations-and-investments) (hamagbicro.hr)<br>An agency in Croatia supporting SME development, promoting investments, implementing grant schemes, and facilitating innovation and technology transfer for economic growth | Financial Services | 🇭🇷 Zagreb | 194 | 1994 |
| 34 | [University of Split School of Medicine](https://www.tamtam.ai/c/university-of-split-school-of-medicine) (mefst.unist.hr)<br>A medical school offering programs in Medicine, Dental Medicine, Pharmacy, and Medical Studies in English, emphasizing research, international collaboration, and student exchange | Higher Education | 🇭🇷 Split | 186 |  |
| 35 | [Juraj Dobrila University of Pula](https://www.tamtam.ai/c/juraj-dobrila-university-of-pula) (unipu.hr)<br>The organization offers a wide range of high-quality study programs in various fields, focusing on innovation, research, international collaboration, and a vibrant student life experience | Higher Education | 🇭🇷 Pula | 185 | 2006 |
| 36 | [Hrvatsko mirovinsko osiguravajuće društvo d.d. (HRMOD)](https://www.tamtam.ai/c/hrvatsko-mirovinsko-osiguravajuce-drustvo-d-d-hrmod) (hrmod.hr)<br>The company handles pension payments from second and third pillars, as well as direct one-time contributions, ensuring competitiveness and quality service | Insurance | 🇭🇷 Zagreb | 36 | 2020 |

## 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 12, 2026.

## More company lists in Croatia

- [The largest companies in Croatia](https://www.tamtam.ai/l/largest-companies-croatia) (314)
- [Multinational companies in Croatia](https://www.tamtam.ai/l/multinational-companies-croatia) (75)
- [Retail chains in Croatia](https://www.tamtam.ai/l/retail-chains-croatia) (40)
- [Companies with in-house R&D in Croatia](https://www.tamtam.ai/l/r-and-d-companies-croatia) (37)
- [Manufacturers in Croatia](https://www.tamtam.ai/l/manufacturers-croatia) (36)
- [Critical infrastructure operators in Croatia](https://www.tamtam.ai/l/critical-infrastructure-operators-croatia) (34)
- [Companies with a mobile app in Croatia](https://www.tamtam.ai/l/companies-with-mobile-app-croatia) (33)
- [Financial services firms in Croatia](https://www.tamtam.ai/l/financial-services-firms-croatia) (31)
- [Software Development companies in Croatia](https://www.tamtam.ai/l/software-development-companies-croatia) (27)
- [IT services companies in Croatia](https://www.tamtam.ai/l/it-services-companies-croatia) (27)
- [Higher Education companies in Croatia](https://www.tamtam.ai/l/higher-education-companies-croatia) (25)

## The same list elsewhere in Croatia

- [Public sector organisations in Zagreb](https://www.tamtam.ai/l/public-sector-organisations-zagreb) (25)

## The same list elsewhere

- [Public sector organisations in the world](https://www.tamtam.ai/l/public-sector-organisations-in-the-world) (18,493)
- [Public sector organisations in Europe](https://www.tamtam.ai/l/public-sector-organisations-in-europe) (8,568)

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