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.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Mplusmplusgroup.eu
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. |
5,802 | |||
| 2 | 4,540 | ||||
| 3 |
Orbico Grouporbico.com
Leading European distributor present in 20 countries, representing global brands in various categories, with focus on long-term partnerships, values, and team growth |
3,394 | |||
| 4 |
Hrvatski Telekomhrvatskitelekom.hr
Leading Croatian telecommunications company offering fixed, mobile, internet, and international communication services with focus on innovation and customer satisfaction. |
2,426 | |||
| 5 | 2,420 | ||||
| 6 |
Zagrebačka bankazaba.hr
Empowering community development and unlocking individual and collective potential across Europe through a pan-European banking network focused on integrity and responsibility |
2,063 | |||
| 7 | 2,058 | ||||
| 8 |
Hi-techhi-tech.hr
Digital agency specializing in internet and mobile advertising, creating campaigns and projects for domestic and international clients with a passionate and dynamic team |
1,935 | |||
| 9 |
FERfer.unizg.hr
Leading Croatian higher education institution specializing in electrical engineering, computer science, and ICT with over 4,000 students and 700 staff members |
1,759 | |||
| 10 | 1,681 | ||||
| 11 | 1,658 | ||||
| 12 |
Privredna banka Zagreb d. d.pbz.hr
A leading financial institution offering a wide range of banking services to individuals and businesses, with a strong international presence |
1,644 | |||
| 13 |
Atlantic Grupacareers.atlanticgrupa.com
A multinational corporation creating brands loved by people, offering career and business opportunities, with a strong distribution network spanning 40 markets |
1,565 | |||
| 14 | 1,426 | ||||
| 15 |
Croatia osiguranje d.d.crosig.hr
Leading insurance provider in Croatia offering various types of insurance, supporting national economy, embracing social responsibility, and focusing on innovative products and client satisfaction |
1,410 | |||
| 16 |
A1 Hrvatska d.o.o.a1.hr
Digital solutions provider in Central and Eastern Europe, offering innovative services and communications solutions to simplify and enhance customer experiences |
1,296 | |||
| 17 |
KONČAR Groupkoncar.hr
Leading Croatian exporter providing sustainable solutions in power generation, distribution, rail infrastructure, and digital platforms across 130 markets worldwide |
1,205 | |||
| 18 |
University Hospital Centre Zagreb, Croatiakbc-zagreb.hr
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 |
1,201 | |||
| 19 |
Medicinski fakultet Sveučilišta u Zagrebumef.hr
Leading institution for medical training and research in South-East Europe, with focus on international collaborations and research in various medical fields |
1,110 | |||
| 20 | 1,069 | ||||
| 21 |
Hrvatska poštanska banka, dioničko društvohpb.hr
A leading Croatian financial institution with a focus on knowledge, innovation, and community responsibility, serving a large client base across the country |
912 | |||
| 22 |
Financijska agencija - Finafina.hr
Leading Croatian provider of financial and electronic services, operating on a market principle, collaborating with banks, institutions, and businesses on various projects nationwide |
903 | |||
| 23 |
Raiffeisenbank Hrvatskarba.hr
A financial institution offering simple, fast, and professional financing and asset management services while striving to positively impact society and the environment |
894 | |||
| 24 |
Ruđer Bošković Instituteirb.hr
Leading Croatian scientific institute conducting research in natural, biomedical, marine, and environmental sciences Participates in international research projects and houses 550 scientists |
804 | |||
| 25 |
Croatia Airlinescroatiaairlines.com
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 |
790 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 26 |
LEDO plus d.o.o.ledo.hr
Leading producer of ice cream and frozen food in Croatia and the region, offering a wide range of family favorites and innovative products |
787 | |||
| 27 |
Addiko Bank Hrvatskaaddiko.hr
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 |
763 | |||
| 28 |
Ericsson Nikola Teslaericsson.hr
Leading provider of information-communication products and services for operators, as well as digital solutions in healthcare, transportation, public administration, utilities, and multimedia communications |
734 | |||
| 29 |
Sestre milosrdnice University Hospital Centerkbcsm.hr
A leading healthcare institution in Croatia, offering a wide range of medical services, scientific activities, and hosting educational facilities |
685 | |||
| 30 |
ENT - Ericsson Nikola Teslaericssonnikolatesla.com
Regional provider of ICT products and services for operators Specializing in innovative solutions for e-health, traffic, public administration, environment, utilities, and multimedia communication |
675 | |||
| 31 |
Kaufland Hrvatska k.d.karijera.kaufland.hr
Leading European retailer with a focus on high quality, wide selection, and affordable prices Offers various career opportunities with employee satisfaction and benefits |
659 | |||
| 32 |
AVC Zagrebavc-group.com
Specializing in audio and video system integration, broadcast, multimedia, and smart video surveillance for various industries and applications |
655 | |||
| 33 |
Marus-ATMmarus-atm.hr
Established in 1988, we specialize in research, development, and production of calibrating instruments, offering expertise in measuring, control systems, and Ex-protection |
647 | |||
| 34 |
Croatian National Bankhnb.hr
A central bank part of the Eurosyste, responsible for maintaining price stability and financial system stability, and participates in the EU monetary policy implementation |
642 | |||
| 35 |
Sveučilište Algebra Bernaysalgebra.hr
A leading educational institution in Croatia offering professional studies, with a record number of 2,000 students enrolled for the academic year 2023/2024 |
631 | |||
| 36 |
Telemach Hrvatskatelemach.hr
A leading provider of telecommunications and media services in Southeast Europe, offering top-notch customer value, cutting-edge technology, and community engagement |
592 | |||
| 37 |
Nova TVnovatv.dnevnik.hr
A leading Croatian media company with multiple TV stations, online portals, and international reach, known for top-rated news and entertainment programs |
570 | |||
| 38 |
Hrvatska studentska asocijacija (HSA)hsa.hr
An organization for ambitious students, offering projects, workshops, and opportunities to gain knowledge and experience for future employment |
563 | |||
| 39 |
VIPnet d.o.o.a1.hr
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 |
563 | |||
| 40 |
Faculty of Economics & Business Zagrebefzg.unizg.hr
Leading institution of higher education specializing in entrepreneurial education with a focus on research and producing highly qualified experts Triple crown accredited |
534 | |||
| 41 | 531 | ||||
| 42 |
Crosco, Integrated Drilling & Well Services Co., Ltd.crosco.com
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 |
522 | |||
| 43 | 509 | ||||
| 44 |
Hrvatski zavod za mirovinsko osiguranje (HZMO) - Croatian Pension Insurance Institutemirovinsko.hr
A public institution in Croatia implementing pension insurance based on generational solidarity, ensuring legality, timeliness, and quality of service through modern technology |
490 | |||
| 45 | 480 | ||||
| 46 |
Ministarstvo unutarnjih poslova Republike Hrvatskemup.gov.hr
The organization oversees various tasks related to policing, public safety, border protection, nationality affairs, document issuing, and security supervision in Croatia |
448 | |||
| 47 |
Hrvatski zavod za zapošljavanje (HZZ) - Croatian Employment Service (CES)hzz.hr
A public institution in Croatia addressing employment and unemployment issues through mediation and development of the labor market |
436 | |||
| 48 |
SEHAseha-liga.com
Organizes a competitive handball league in multiple countries, featuring ten teams and gaining popularity across Europe and beyond |
427 | |||
| 49 | 418 | ||||
| 50 |
Museum of Illusionsmuseumofillusions.com
Global brand offering interactive museums with holograms, mind-bending illusions, and astonishing exhibits to educate and entertain visitors worldwide |
418 | |||
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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.
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- Retail chains in Zagreb 26
- Critical infrastructure operators in Zagreb 25
- Public sector organisations in Zagreb 25