# The 50 largest companies in Zagreb

Tamtam tracks 198 companies headquartered in Zagreb. This list ranks the 50 largest by number of employees on LinkedIn, led by Mplus, INA Grupa and Orbico Group. Their median headcount is 790. Half of them were founded in 1990 or later.

These large Zagreb-based companies operate in a range of sectors, including manufacturing, finance, telecommunications, and business services. Most are established firms, with founding dates spanning from the late 19th century to the early 2000s, indicating a mature corporate landscape. Significant employers include Mplus, a provider of customer experience solutions, and INA Grupa, active in oil and gas exploration and distribution. Orbico Group is a major European distributor of global brands, while Hrvatski Telekom is the leading telecommunications company in Croatia.

A notable pattern among these companies is their long-standing presence in the market. Many, such as Zagrebačka banka (founded 1914) and HEP (founded 1884), have operated for over a century, contributing to the stability and development of the Croatian economy. The list also shows a strong representation of essential services, including banking, energy, and telecommunications.

🇭🇷 Zagreb · 50 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Mplus](https://www.tamtam.ai/c/mplus) (mplusgroup.eu)<br>Leading European provider of intelligent customer experience solutions, combining AI and human expertise to design, run, and operate integrated customer experience systems for business growth. | Business Consulting and Services | 🇭🇷 Zagreb | 5,802 | 2007 |
| 2 | [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 |
| 3 | [Orbico Group](https://www.tamtam.ai/c/orbico-group) (orbico.com)<br>Leading European distributor present in 20 countries, representing global brands in various categories, with focus on long-term partnerships, values, and team growth | Manufacturing | 🇭🇷 Zagreb | 3,394 | 1998 |
| 4 | [Hrvatski Telekom](https://www.tamtam.ai/c/hrvatski-telekom) (hrvatskitelekom.hr)<br>Leading Croatian telecommunications company offering fixed, mobile, internet, and international communication services with focus on innovation and customer satisfaction. | Telecommunications | 🇭🇷 Zagreb | 2,426 |  |
| 5 | [EPH](https://www.tamtam.ai/c/eph) (eph.hr)<br>Leading publishing and media organization in Croatia and Southeastern Europe with a diverse portfolio of newspapers, magazines, television, and online content | Book and Periodical Publishing | 🇭🇷 Zagreb | 2,420 | 1990 |
| 6 | [Zagrebačka banka](https://www.tamtam.ai/c/zagrebacka-banka) (zaba.hr)<br>Empowering community development and unlocking individual and collective potential across Europe through a pan-European banking network focused on integrity and responsibility | Banking | 🇭🇷 Zagreb | 2,063 | 1914 |
| 7 | [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 |
| 8 | [Hi-tech](https://www.tamtam.ai/c/hi-tech-zagreb) (hi-tech.hr)<br>Digital agency specializing in internet and mobile advertising, creating campaigns and projects for domestic and international clients with a passionate and dynamic team | Advertising Services | 🇭🇷 Zagreb | 1,935 |  |
| 9 | [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 |
| 10 | [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 |
| 11 | [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 |
| 12 | [Privredna banka Zagreb d. d.](https://www.tamtam.ai/c/privredna-banka-zagreb-d-d) (pbz.hr)<br>A leading financial institution offering a wide range of banking services to individuals and businesses, with a strong international presence | Banking | 🇭🇷 Zagreb | 1,644 | 1966 |
| 13 | [Atlantic Grupa](https://www.tamtam.ai/c/atlantic-grupa) (careers.atlanticgrupa.com)<br>A multinational corporation creating brands loved by people, offering career and business opportunities, with a strong distribution network spanning 40 markets | Manufacturing | 🇭🇷 Zagreb | 1,565 | 1991 |
| 14 | [Konzum](https://www.tamtam.ai/c/konzum) (konzum.hr)<br>Leading retail chain in Croatia with over 600 stores nationwide, focusing on providing quality products, exceptional service, and value for customers | Retail | 🇭🇷 Zagreb | 1,426 | 1957 |
| 15 | [Croatia osiguranje d.d.](https://www.tamtam.ai/c/croatia-osiguranje-d-d) (crosig.hr)<br>Leading insurance provider in Croatia offering various types of insurance, supporting national economy, embracing social responsibility, and focusing on innovative products and client satisfaction | Insurance | 🇭🇷 Zagreb | 1,410 | 1884 |
| 16 | [A1 Hrvatska d.o.o.](https://www.tamtam.ai/c/a1-hrvatska-d-o-o) (a1.hr)<br>Digital solutions provider in Central and Eastern Europe, offering innovative services and communications solutions to simplify and enhance customer experiences | Telecommunications | 🇭🇷 Zagreb | 1,296 | 1999 |
| 17 | [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 |
| 18 | [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 |  |
| 19 | [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 |
| 20 | [Span](https://www.tamtam.ai/c/span-zagreb) (span.eu)<br>Global IT provider specializing in information system design, technical customer support, and digital business transformation services for large enterprises worldwide | IT Services and IT Consulting | 🇭🇷 Zagreb | 1,069 | 1993 |
| 21 | [Hrvatska poštanska banka, dioničko društvo](https://www.tamtam.ai/c/hrvatska-postanska-banka-dionicko-drustvo) (hpb.hr)<br>A leading Croatian financial institution with a focus on knowledge, innovation, and community responsibility, serving a large client base across the country | Banking | 🇭🇷 Zagreb | 912 | 1991 |
| 22 | [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 |  |
| 23 | [Raiffeisenbank Hrvatska](https://www.tamtam.ai/c/raiffeisenbank-hrvatska) (rba.hr)<br>A financial institution offering simple, fast, and professional financing and asset management services while striving to positively impact society and the environment | Financial Services | 🇭🇷 Zagreb | 894 | 1994 |
| 24 | [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 |
| 25 | [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 |
| 26 | [LEDO plus d.o.o.](https://www.tamtam.ai/c/ledo-plus-d-o-o) (ledo.hr)<br>Leading producer of ice cream and frozen food in Croatia and the region, offering a wide range of family favorites and innovative products | Food and Beverage Manufacturing | 🇭🇷 Zagreb | 787 | 1958 |
| 27 | [Addiko Bank Hrvatska](https://www.tamtam.ai/c/addiko-bank-hrvatska) (addiko.hr)<br>Focused on delivering value through basic banking products, prioritizing quality over quantity Simplifying processes, providing clear communication, and personalized service for a positive client experience | Banking | 🇭🇷 Zagreb | 763 | 1996 |
| 28 | [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 |  |
| 29 | [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 |
| 30 | [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 |  |
| 31 | [Kaufland Hrvatska k.d.](https://www.tamtam.ai/c/kaufland-hrvatska-k-d) (karijera.kaufland.hr)<br>Leading European retailer with a focus on high quality, wide selection, and affordable prices Offers various career opportunities with employee satisfaction and benefits | Retail | 🇭🇷 Zagreb | 659 | 2001 |
| 32 | [AVC Zagreb](https://www.tamtam.ai/c/avc-zagreb) (avc-group.com)<br>Specializing in audio and video system integration, broadcast, multimedia, and smart video surveillance for various industries and applications | Broadcast Media Production and Distribution | 🇭🇷 Zagreb | 655 | 1990 |
| 33 | [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 |
| 34 | [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 |
| 35 | [Sveučilište Algebra Bernays](https://www.tamtam.ai/c/sveuciliste-algebra-bernays) (algebra.hr)<br>A leading educational institution in Croatia offering professional studies, with a record number of 2,000 students enrolled for the academic year 2023/2024 | Higher Education | 🇭🇷 Zagreb | 631 |  |
| 36 | [Telemach Hrvatska](https://www.tamtam.ai/c/telemach-hrvatska) (telemach.hr)<br>A leading provider of telecommunications and media services in Southeast Europe, offering top-notch customer value, cutting-edge technology, and community engagement | Telecommunications | 🇭🇷 Zagreb | 592 |  |
| 37 | [Nova TV](https://www.tamtam.ai/c/nova-tv) (novatv.dnevnik.hr)<br>A leading Croatian media company with multiple TV stations, online portals, and international reach, known for top-rated news and entertainment programs | Broadcast Media Production and Distribution | 🇭🇷 Zagreb | 570 | 2000 |
| 38 | [Hrvatska studentska asocijacija (HSA)](https://www.tamtam.ai/c/hrvatska-studentska-asocijacija-hsa) (hsa.hr)<br>An organization for ambitious students, offering projects, workshops, and opportunities to gain knowledge and experience for future employment | Higher Education | 🇭🇷 Zagreb | 563 | 1992 |
| 39 | [VIPnet d.o.o.](https://www.tamtam.ai/c/vipnet-d-o-o) (a1.hr)<br>Leader in Croatian telecom, offering comprehensive 5-play services with cutting-edge technologies Part of global telecom groups with focus on customer satisfaction and innovation | Telecommunications | 🇭🇷 Zagreb | 563 | 1998 |
| 40 | [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 |
| 41 | [DUKAT](https://www.tamtam.ai/c/dukat) (dukat.hr)<br>This company has been dedicated to providing consumers with the best quality milk for over 110 years, working with thousands of milk producers across Croatia | Food and Beverage Manufacturing | 🇭🇷 Zagreb | 531 | 1912 |
| 42 | [Crosco, Integrated Drilling & Well Services Co., Ltd.](https://www.tamtam.ai/c/crosco-integrated-drilling-and-well-services-co-ltd) (crosco.com)<br>An integrated drilling and well services contractor with a fleet of onshore and offshore rigs, providing a wide range of oil and gas services internationally | Oil and Gas | 🇭🇷 Zagreb | 522 | 1996 |
| 43 | [Ledo](https://www.tamtam.ai/c/ledo) (ledo.hr)<br>The organization is the top producer of mass-produced ice-cream and distributor of frozen foods in Croatia and South Central Europe, with a strong focus on modern technology | Food and Beverage Manufacturing | 🇭🇷 Zagreb | 509 |  |
| 44 | [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 |
| 45 | [Matel](https://www.tamtam.ai/c/matel) (matel.hr)<br>Specializing in creating switchboards worldwide and all types of electrical installations in Croatia Our team of 30 skilled workers ensures perfect project execution | Appliances, Electrical, and Electronics Manufacturing | 🇭🇷 Zagreb | 480 | 1990 |
| 46 | [Ministarstvo unutarnjih poslova Republike Hrvatske](https://www.tamtam.ai/c/ministarstvo-unutarnjih-poslova-republike-hrvatske) (mup.gov.hr)<br>The organization oversees various tasks related to policing, public safety, border protection, nationality affairs, document issuing, and security supervision in Croatia | Government Administration | 🇭🇷 Zagreb | 448 | 1990 |
| 47 | [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 |
| 48 | [SEHA](https://www.tamtam.ai/c/seha) (seha-liga.com)<br>Organizes a competitive handball league in multiple countries, featuring ten teams and gaining popularity across Europe and beyond | Spectator Sports | 🇭🇷 Zagreb | 427 | 2011 |
| 49 | [ZAGREB](https://www.tamtam.ai/c/zagreb) (zagreb.hr)<br>The city of Zagreb, capital of Croatia, serves as the primary hub for culture, science, economy, politics, and administration in the region | Public Safety | 🇭🇷 Zagreb | 418 |  |
| 50 | [Museum of Illusions](https://www.tamtam.ai/c/museum-of-illusions) (museumofillusions.com)<br>Global brand offering interactive museums with holograms, mind-bending illusions, and astonishing exhibits to educate and entertain visitors worldwide | Entertainment Providers | 🇭🇷 Zagreb | 418 | 2015 |

## 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 Zagreb

- [Multinational companies in Zagreb](https://www.tamtam.ai/l/multinational-companies-zagreb) (48)
- [Companies with a mobile app in Zagreb](https://www.tamtam.ai/l/companies-with-mobile-app-zagreb) (26)
- [Retail chains in Zagreb](https://www.tamtam.ai/l/retail-chains-zagreb) (26)
- [Critical infrastructure operators in Zagreb](https://www.tamtam.ai/l/critical-infrastructure-operators-zagreb) (25)
- [Public sector organisations in Zagreb](https://www.tamtam.ai/l/public-sector-organisations-zagreb) (25)

## The same list elsewhere in Croatia

- [The largest companies in Croatia](https://www.tamtam.ai/l/largest-companies-croatia) (314)

## The same list elsewhere

- [The largest companies in the world](https://www.tamtam.ai/l/largest-companies-in-the-world) (415,122)
- [The largest companies in Europe](https://www.tamtam.ai/l/largest-companies-in-europe) (213,553)

---

Source: https://www.tamtam.ai/l/largest-companies-zagreb