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33 leading research institutes in South Holland

Tamtam tracks 33 research institutes headquartered in South Holland. This list ranks all of them by number of employees on LinkedIn, led by Erasmus MC, Delft University of Technology and Leiden University Medical Center. Their median headcount is 478. Half of them were founded in 1945 or later. The most common headquarters are The Hague (10), Delft (9) and Rotterdam (8).

馃嚦馃嚤 South Holland33 companiesUpdated Nov 12, 2026

The research institutes in Zuid-Holland are primarily large organizations focused on higher education, medical care, and applied research. They represent significant employers in the region. Erasmus MC, for instance, is a leading university medical center, while Delft University of Technology focuses on technological development. Leiden University Medical Center improves patient care through scientific research, and TNO specializes in applied research for industry and society. Leiden University offers diverse academic programs, and Erasmus University Rotterdam specializes in economics, medicine, law, and culture.

A notable pattern among these institutions is their strong concentration in a few key cities. Rotterdam, Delft, Leiden, and The Hague host the majority of these large research and educational organizations. This suggests a regional clustering of knowledge and innovation, with a mix of public and semi-public entities contributing to various sectors, from healthcare to government administration, as seen with the Centraal Bureau voor de Statistiek.

#CompanyIndustryHeadquarters EmployeesFounded
1
Erasmus MCerasmusmc.nl

Leading university medical center providing advanced healthcare, cutting-edge research, and high-quality education focused on complex and rare medical conditions.

Hospitals and Health Care 馃嚦馃嚤 Rotterdam 14,228 2002
2
Delft University of Technologytudelft.nl

Top European university focused on technological development and research for a better society, with key areas including health, energy, environment, and infrastructure

Research Services 馃嚦馃嚤 Delft 10,093 1842
3
Leiden University Medical Centerlumc.nl

A medical center focused on improving patient care through scientific research, providing specialized treatments, and serving as a referral center for complex medical questions

Hospitals and Health Care 馃嚦馃嚤 Leiden 8,812 n/a
4
Leiden Universityuniversiteitleiden.nl

Offers diverse bachelor's and master's programs, renowned for academic excellence, preparing students for global employment opportunities.

Higher Education 馃嚦馃嚤 Leiden 8,420 n/a
5
TNOtno.nl

An independent organization specializing in applied research, connecting people and knowledge to drive innovations for industry competitiveness and societal well-being sustainably

Research Services 馃嚦馃嚤 2595 DA The Hague 5,866 1932
6
Erasmus University Rotterdameur.nl

University specializing in economics, medicine, law, and culture, offering education, research, and career development opportunities in Rotterdam.

Higher Education 馃嚦馃嚤 Rotterdam 4,008 1913
7
De Haagse Hogeschool / The Hague University of Applied Sciencesdehaagsehogeschool.nl

Higher education institution offering a variety of programmes to over 20,000 students from 140+ countries, prioritizing inclusion, sustainability, and internationality

Higher Education 馃嚦馃嚤 The Hague 3,564 1987
8
Centraal Bureau voor de Statistiekcbs.nl

A data collection and processing agency that publishes statistics for practical use, policymaking, and research, covering various societal aspects

Government Administration 馃嚦馃嚤 The Hague 2,786 1899
9
Rotterdam School of Management, Erasmus Universityrsm.nl

A top-ranked business school in Europe offering education and research to develop international business leaders with an innovative mindset for a sustainable future

Higher Education 馃嚦馃嚤 Rotterdam 1,474 1970
10
Deltaresdeltares.nl

An independent research institute specializing in water and subsurface solutions for deltas, coastal regions, and river basins, collaborating with various stakeholders worldwide

Research Services 馃嚦馃嚤 Delft 1,115 2008
11
NWO (Dutch Research Council)nwo.nl

Leading science-funding body in the Netherlands investing in research projects, promoting collaboration, innovation, and knowledge utilization in various disciplines

Research Services 馃嚦馃嚤 The Hague 1,052 n/a
12
ZonMwzonmw.nl

ZonMw funds research and innovation in health, care, and welfare to promote good health for all by advancing knowledge and identifying research needs

Research Services 馃嚦馃嚤 The Hague 962 2001
13
Netherlands Forensic Institute NFIforensischinstituut.nl

providing reliable forensic information and products to support national and international organizations in peace, justice, and safety efforts

Research Services 馃嚦馃嚤 The Hague 758 1999
14
Naturalis Biodiversity Centernaturalis.nl

The company is dedicated to recording all life on Earth, researching nature to preserve biodiversity, and contributing to solutions for global issues

Museums, Historical Sites, and Zoos 馃嚦馃嚤 Leiden 690 1820
15
KB nationale bibliotheekkb.nl

National library of the Netherlands advancing intellectual development, creativity, and collaboration with public libraries, cultural heritage, and academics for enhanced access to Dutch Library Collection

Libraries 馃嚦馃嚤 The Hague 657 1798
16
Erasmus School of Economicseur.nl

An internationally renowned school of economics offering top-level programs, conducting cutting-edge research, and promoting knowledge transfer to society

Higher Education 馃嚦馃嚤 Rotterdam 610 1913

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17
IHE Delft Institute for Water Educationun-ihe.org

Global graduate water education and training provider based in the Netherlands, focused on sustainable water management and capacity building for global development

Higher Education 馃嚦馃嚤 Delft 478 1957
18
TU Delft | Aerospace Engineeringtudelft.nl

Largest aerospace faculty globally. Focuses on modern teaching, high-profile research, and pioneering innovations in aerospace and wind energy.

Higher Education 馃嚦馃嚤 Delft 401 n/a
19
TU Delft | Civil Engineering and Geosciencestudelft.nl

The company is a research institution in the Netherlands focusing on engineering solutions for societal challenges related to climate change and urbanization

Research Services 馃嚦馃嚤 Delft 384 1842
20
Leiden University - Faculty of Governance and Global Affairsuniversiteitleiden.nl

The Faculty of Governance and Global Affairs at Leiden University provides interdisciplinary research and education on political, administrative, and international law issues

Higher Education 馃嚦馃嚤 The Hague 375 n/a
21
Faculty of Architecture and the Built Environment, TU Delfttudelft.nl

The Faculty of Architecture and the Built Environment at TU Delft is a renowned platform for innovation in architecture education and research internationally

Architecture and Planning 馃嚦馃嚤 Delft 374 1904
22
Erasmus School of Laweur.nl

Erasmus School of Law in Rotterdam offers bachelor and master programs, postgraduate courses, and conducts research in collaboration with academia and industry

Higher Education 馃嚦馃嚤 Rotterdam 346 1963
23
PBL Planbureau voor de Leefomgevingpbl.nl

The company conducts strategic policy analysis on environment, nature, and spatial planning to improve decision-making through studies and evaluations

Research Services 馃嚦馃嚤 The Hague 343 2008
24
TU Delft | Mechanical Engineeringtudelft.nl

The faculty of Mechanical Engineering at Delft University of Technology conducts pioneering research and provides outstanding education in innovative, high-tech facilities

Research Services 馃嚦馃嚤 Delft 312 1842
25
SRON Space Research Organisation Netherlandssron.nl

A Dutch institute specializing in space research, developing technology for astrophysical, planetary, and climate studies, as well as creating sensors for X-rays and infrared radiation

Research Services 馃嚦馃嚤 Leiden 274 1961
26
QuTechqutech.nl

Innovative company focused on developing quantum computing technology and a secure quantum internet based on quantum mechanics principles

Nanotechnology Research 馃嚦馃嚤 Delft 223 2014
27
CPB Netherlands Bureau for Economic Policy Analysiscpb.nl

Conducts scientific research to inform economic decision-making for politicians and policymakers, either proactively or upon request from various stakeholders

Government Administration 馃嚦馃嚤 The Hague 195 1945
28
RKD - Nederlands Instituut voor Kunstgeschiedenisrkd.nl

The institute manages a collection of materials on Western art from the late Middle Ages to present, essential for art historians and art enthusiasts

Museums, Historical Sites, and Zoos 馃嚦馃嚤 The Hague 102 1932
29
Leiden Institute of Physicsleidenuniv.nl

Leading physics institute specializing in research in Quantum & Optics, Theoretical Physics, and Biological & Soft Matter at Leiden University in The Netherlands

Research Services 馃嚦馃嚤 Leiden 31 1893
30
Kenniscentrum Zorginnovatiehogeschoolrotterdam.nl

Conducting practice-oriented research to improve healthcare and support, collaborating with professionals, clients, and educational institutions to enhance health and well-being

Research Services 馃嚦馃嚤 Rotterdam 20 n/a
31
institute for Medical Technology Assessment (iMTA | Erasmus University)imta.nl

A university-based institute specializing in medical technology assessment, health economics, and health outcomes research for over 30 years

Research Services 馃嚦馃嚤 Rotterdam 17 1988
32
Convergence Health & Technologyconvergence.nl

The company integrates medical, engineering, and social sciences to create a sustainable healthcare ecosystem with cutting-edge technologies and personalized health interventions

Hospitals and Health Care 馃嚦馃嚤 Rotterdam 5 n/a
33
TU Delft Healthtudelft.nl

Bringing together researchers to focus on health research and innovation, contributing to pioneering health technologies within relevant research programs

Research Services 馃嚦馃嚤 Delft 2 n/a

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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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