# 37 leading companies with in-house R&D in Croatia

Tamtam tracks 37 companies with in-house R&D headquartered in Croatia. This list ranks all of them by number of employees on LinkedIn, led by INA Grupa, Ascom and PLIVA. Their median headcount is 358. Half of them were founded in 1987 or later. The most common headquarters are Zagreb (18).

These Croatian companies with in-house R&D are primarily large, established firms in various sectors. PLIVA and JGL d.d. are pharmaceutical manufacturers, with PLIVA focusing on affordable medicines and JGL d.d. specializing in sterile products. INA Grupa operates in oil and gas, while KONČAR Group provides sustainable solutions in power generation. Rimac Technology and Bugatti Rimac are involved in motor vehicle manufacturing, the latter designing luxury hypercars.

A notable pattern is the concentration of headquarters in Zagreb, including INA Grupa, PLIVA, KONČAR Group, and Ericsson Nikola Tesla, which offers ICT products and services. Two companies, Ascom and Medela, are headquartered in Baar, Switzerland, indicating a presence of international firms in Croatia's R&D landscape. The list also includes major educational and healthcare institutions like the University Hospital Centre Zagreb and the University of Zagreb, highlighting their role in local R&D.

🇭🇷 Croatia · 37 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 | [Ascom](https://www.tamtam.ai/c/ascom-baar) (ascom.com)<br>Global provider of communication and collaboration solutions for healthcare and enterprise sectors, focusing on delivering actionable information for efficient workflows | IT Services and IT Consulting | 🇭🇷 Baar | 2,157 | 1987 |
| 3 | [PLIVA](https://www.tamtam.ai/c/pliva) (pliva.hr)<br>Leading pharmaceutical manufacturer with 100 years of experience, offering high quality, affordable medicines globally, with focus on R&D and exporting to major markets | Pharmaceutical Manufacturing | 🇭🇷 Zagreb | 1,681 | 1921 |
| 4 | [Medela](https://www.tamtam.ai/c/medela) (medela.com)<br>Global leader in healthcare solutions, specializing in research-based breast milk feeding and baby products, providing clinical education and improving health outcomes | Medical Equipment Manufacturing | 🇭🇷 Baar | 1,321 | 1961 |
| 5 | [KONČAR Group](https://www.tamtam.ai/c/koncar-group) (koncar.hr)<br>Leading Croatian exporter providing sustainable solutions in power generation, distribution, rail infrastructure, and digital platforms across 130 markets worldwide | Renewable Energy Power Generation | 🇭🇷 Zagreb | 1,205 | 1921 |
| 6 | [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 |  |
| 7 | [Podravka](https://www.tamtam.ai/c/podravka) (podravka.com)<br>Global brand with presence on over 50 markets and 5 continents, specializing in food and pharmaceuticals Known for iconic product Vegeta | Food and Beverage Services | 🇭🇷 Koprivnica | 1,123 | 1947 |
| 8 | [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 |
| 9 | [Rimac Technology](https://www.tamtam.ai/c/rimac-technology) (rimac-technology.com)<br>Rimac Technology provides full technology solutions for global OEMs, specializing in developing cutting-edge automotive systems from concept to serial production | Motor Vehicle Manufacturing | 🇭🇷 Sveta Nedelja | 990 |  |
| 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 | [Ericsson Nikola Tesla](https://www.tamtam.ai/c/ericsson-nikola-tesla) (ericsson.hr)<br>Leading provider of information-communication products and services for operators, as well as digital solutions in healthcare, transportation, public administration, utilities, and multimedia communications | IT Services and IT Consulting | 🇭🇷 Zagreb | 734 |  |
| 12 | [ENT - Ericsson Nikola Tesla](https://www.tamtam.ai/c/ent-ericsson-nikola-tesla) (ericssonnikolatesla.com)<br>Regional provider of ICT products and services for operators Specializing in innovative solutions for e-health, traffic, public administration, environment, utilities, and multimedia communication | Software Development | 🇭🇷 Zagreb | 675 |  |
| 13 | [Marus-ATM](https://www.tamtam.ai/c/marus-atm) (marus-atm.hr)<br>Established in 1988, we specialize in research, development, and production of calibrating instruments, offering expertise in measuring, control systems, and Ex-protection | Industrial Machinery Manufacturing | 🇭🇷 Zagreb | 647 | 1988 |
| 14 | [Bugatti Rimac](https://www.tamtam.ai/c/bugatti-rimac) (bugatti-rimac.com)<br>Designing and producing high-performance luxury hypercars through collaboration between Rimac Automobili and Bugatti Automobiles, maintaining distinct brand identities. | Motor Vehicle Manufacturing | 🇭🇷 Sveta Nedelja | 635 | 2021 |
| 15 | [JGL d.d.](https://www.tamtam.ai/c/jgl-d-d) (jgl.eu)<br>International pharmaceutical company focused on manufacturing sterile products in ophthalmology and ENT therapeutic areas, utilizing seawater for health purposes across forty global markets. | Pharmaceutical Manufacturing | 🇭🇷 Rijeka | 537 | 1991 |
| 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 | [Belupo](https://www.tamtam.ai/c/belupo) (belupo.hr)<br>A pharmaceutical company established in 1971, expanding production in 1980 with a modern factory in Koprivnica Operating on 16 European markets, focusing on exports and new product development | Pharmaceutical Manufacturing | 🇭🇷 Koprivnica | 418 | 1971 |
| 18 | [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 |  |
| 19 | [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 |
| 20 | [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 |
| 21 | [Institut IGH, d.d.](https://www.tamtam.ai/c/institut-igh-d-d) (igh.hr)<br>This leading civil engineering consulting firm in Southern and Eastern Europe offers services in road design, water engineering, and more, with extensive testing capabilities | Civil Engineering | 🇭🇷 Zagreb | 344 | 1949 |
| 22 | [IN2 Group](https://www.tamtam.ai/c/in2-group) (in2.hr)<br>A leading software industry group offering innovative IT solutions with a diverse team, global presence, and commitment to quality and environmental standards | IT Services and IT Consulting | 🇭🇷 Zagreb | 328 | 1992 |
| 23 | [KFK](https://www.tamtam.ai/c/kfk) (kfk.hr)<br>Specializing in aluminum and glass facade solutions, we have completed prestigious projects in Croatia and worldwide, leading in Europe with innovation and quality | Construction | 🇭🇷 Rugvica | 327 | 1997 |
| 24 | [Franck](https://www.tamtam.ai/c/franck) (franck.eu)<br>A successful Croatian producer and exporter of food products emphasizing quality, innovation, and customer satisfaction in coffee, tea, and snacks | Food and Beverage Services | 🇭🇷 Zagreb | 317 | 1892 |
| 25 | [AD Plastik Group](https://www.tamtam.ai/c/ad-plastik-group) (adplastik.hr)<br>Leading manufacturer of plastic car components in Eastern Europe, specializing in quality parts for the international automobile industry with a focus on employee success and innovation | Motor Vehicle Manufacturing | 🇭🇷 Solin | 313 | 1992 |
| 26 | [Klimaoprema d.o.o.](https://www.tamtam.ai/c/klimaoprema-d-o-o) (klimaoprema.com)<br>Experienced manufacturer of high-quality HVAC equipment and cleanroom technology, also providing turnkey projects for industries requiring cleanroom solutions | Architecture and Planning | 🇭🇷 Samobor | 240 | 1975 |
| 27 | [DOK-ING](https://www.tamtam.ai/c/dok-ing) (dok-ing.hr)<br>An innovative engineering powerhouse specializing in heavy-duty robotics and autonomous systems for various industries worldwide | Industrial Machinery Manufacturing | 🇭🇷 Zagreb | 202 | 1991 |
| 28 | [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 |
| 29 | [INTIS](https://www.tamtam.ai/c/intis) (intis.eu)<br>A modern organization specializing in IoT, SaaS, and AI solutions, with expertise in automated retail and a diverse portfolio of global clients | IT Services and IT Consulting | 🇭🇷 Zagreb | 199 | 1989 |
| 30 | [Rimac Automobili](https://www.tamtam.ai/c/rimac-automobili) (rimac-automobili.com)<br>A leading electric hypercar brand designing, engineering, and producing high-performance vehicles, with a focus on electric propulsion systems for sports cars | Motor Vehicle Manufacturing | 🇭🇷 Sveta Nedelja | 190 | 2009 |
| 31 | [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 |
| 32 | [Visage Technologies](https://www.tamtam.ai/c/visage-technologies) (visagetechnologies.com)<br>Specializing in face tracking, analysis, and recognition solutions for various industries, including automotive, security, retail, and marketing research Providing advanced technology and real-time virtual makeup try-on | Software Development | 🇭🇷 Zagreb | 176 | 2002 |
| 33 | [HS Produkt](https://www.tamtam.ai/c/hs-produkt) (hs-produkt.hr)<br>Leading manufacturer with 30 years experience in top-quality small arms production, known for advanced thinking and international success in the pistol line | Manufacturing | 🇭🇷 Karlovac | 166 |  |
| 34 | [NEOS](https://www.tamtam.ai/c/neos-zagreb) (neos.hr)<br>NEOS specializes in providing business solutions in cloud and system infrastructure integration, advanced analytics, and software engineering across various industries | Software Development | 🇭🇷 Zagreb | 158 | 2002 |
| 35 | [Emil Frey Digital d.o.o.](https://www.tamtam.ai/c/emil-frey-digital-d-o-o) (emilfreydigital.com)<br>Development of innovative automotive technology products including web applications, AI, IoT, data integration, and CRM to support automotive group operations. | Software Development | 🇭🇷 Varaždin | 147 | 2017 |
| 36 | [Biogaz Vallée®](https://www.tamtam.ai/c/biogaz-vallee) (biogazvallee.com)<br>National professional association unifying, animating, and supporting the biomethanization, hydrothermal gasification, and biogenic CO2 sectors to accelerate development and increase value creation. | Environmental Services | 🇭🇷 Rosières-Près-Troyes | 13 | 2011 |
| 37 | [POD d.o.o.](https://www.tamtam.ai/c/pod-d-o-o) (pod.hr)<br>A third-generation family owned company established in 1971, specializing in the production of springs and components with a focus on quality and export | Industrial Machinery Manufacturing | 🇭🇷 Dežanovac | 6 | 1971 |

## 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)
- [Public sector organisations in Croatia](https://www.tamtam.ai/l/public-sector-organisations-croatia) (36)
- [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

- [Companies with in-house R&D in the world](https://www.tamtam.ai/l/r-and-d-companies-in-the-world) (34,346)
- [Companies with in-house R&D in Europe](https://www.tamtam.ai/l/r-and-d-companies-in-europe) (20,169)

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Source: https://www.tamtam.ai/l/r-and-d-companies-croatia