| # | Company | Employees |
|---|---|---|
| 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. |
14,228 |
| 2 |
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 |
8,812 |
| 3 |
Parnassia Groepparnassiagroep.nl
A healthcare group with 8,000 employees providing mental health services in three core regions, offering comprehensive care tailored to individual needs |
8,302 |
| 4 |
HagaZiekenhuishagaziekenhuis.nl
A leading top clinical teaching hospital in the Haaglanden region, offering excellent basic care, specialized services, and supporting scientific research |
3,244 |
| 5 | 3,217 | |
| 6 |
Haaglanden Medisch Centrum (HMC)haaglandenmc.nl
A leading hospital in The Hague region, providing specialized care across three locations with a focus on oncology, elderly care, and trauma services |
3,038 |
| 7 |
Ipse de Bruggenipsedebruggen.nl
Providing opportunities, support, and care for individuals with mental and/or multiple handicaps, ensuring lifelong development and community participation |
3,003 |
| 8 |
Laurenslaurens.nl
A care organization in Rotterdam providing home care, rehabilitation, nursing home care, end-of-life care, and independent housing for seniors |
3,001 |
| 9 |
Maasstad Ziekenhuismaasstadziekenhuis.nl
Large general hospital in Rotterdam providing expert medical care, specialized burn treatment, oncology, and intensive care services to improve patient quality of life. |
2,866 |
| 10 |
Franciscusfranciscus.nl
Top Clinical Teaching Hospital providing care for over 100 years with a focus on exceeding patient expectations and creating a welcoming environment |
2,712 |
| 11 |
Albert Schweitzer ziekenhuisasz.nl
A top clinical teaching hospital providing high-quality inpatient and outpatient care with a team of 250 specialists, 3000 employees, and 400 volunteers |
2,453 |
| 12 |
Affideaaffidea.com
A pan-European provider of diagnostic imaging and healthcare services with a focus on patient safety and high-quality medical care |
2,327 |
| 13 | 2,281 | |
| 14 |
Reinier de Graaf ziekenhuisreinierdegraaf.nl
With a history of providing healthcare for almost eight centuries, the company operates hospitals and expert centers, focusing on various medical specialties and patient demographics |
2,144 |
| 15 |
Rivas Zorggroeprivas.nl
Rivas provides high-quality and continuous healthcare services in multiple regions, focusing on personalized care and promoting health and well-being for clients |
2,140 |
| 16 |
GGZ Rivierduinenrivierduinen.nl
A large mental health organization in the Netherlands offering a range of services for adults, elderly, youth, and children, including clinical treatment and polyclinic help |
1,972 |
| 17 | 1,967 | |
| 18 |
Lelie zorggroepleliezorggroep.nl
A group offering care and support in the Netherlands through various organizations focusing on healthcare, mental health, and elderly care with a Christian ethos |
1,947 |
| 19 |
Florenceflorence.nl
Provides diverse healthcare services including home care, residential care, youth health, and advice in the Den Haag region, with dedicated staff and volunteers. |
1,944 |
| 20 |
Antesanteszorg.nl
We provide (highly) specialized mental health care to clients of all ages, focusing on recovery and improvement with the support of loved ones and colleagues |
1,780 |
| 21 | 1,775 | |
| 22 |
Pameijerpameijer.nl
Providing tailored support for individuals facing challenges, focusing on strengths and empowering them to lead independent lives within their community |
1,743 |
| 23 |
Alrijnealrijne.nl
Providing the best healthcare with personal attention, empowering patients to take control of their health, in collaboration with medical professionals |
1,709 |
| 24 | 1,675 | |
| 25 |
Groene Hart Ziekenhuiswerkenbijghz.nl
A hospital in the Green Heart region offering high-quality care with a focus on patients, staff, and a supportive work environment |
1,567 |
| 26 | 1,497 | |
| 27 |
Pieter van Foreestpietervanforeest.nl
Pieter van Foreest offers a wide range of care, treatment, and well-being services for elderly in the Delft region They prioritize personalized care and collaboration |
1,451 |
| 28 | 1,415 | |
| 29 |
Enverwerkenbijenver.nl
Enver provides support and care for children, youth, parents, and caregivers facing challenges in development, offering various services and opportunities for professionals and potential foster parents |
1,405 |
| 30 |
IJsselland Ziekenhuisysl.nl
An general regional hospital in Capelle aan den IJssel with a focus on gastrointestinal care, serving the surrounding area since 1991 |
1,379 |
| 31 | 1,344 | |
| 32 |
Koninklijke Auris Groepauris.nl
Supporting educational institutions by providing assistance to students with hearing or communication difficulties |
1,323 |
| 33 |
Ikaziawerkenbijikazia.nl
A healthcare provider focused on personalized care, training new doctors, and offering services close to home through various outpatient clinics |
1,287 |
| 34 | 1,245 | |
| 35 |
Veiligheidsregio Rotterdam-Rijnmondvr-rr.nl
A company ensuring safety in the region through ambulance care, fire brigade services, disaster response, crisis management, prevention, and collaboration with municipalities and police |
1,221 |
| 36 |
GGZ Delflandggz-delfland.nl
A longstanding mental health institution providing personalized care to individuals of all ages, offering a range of services across multiple locations |
1,211 |
| 37 |
WoonZorgcentra Haaglanden (WZH)wzh.nl
WZH offers personalized care and living options for people with dementia, somatic complaints, and other health conditions in the Haaglanden region |
1,201 |
| 38 |
Marentemarente.nl
Marente provides care and support to elderly and vulnerable individuals in the Duin- and Bollenstreek region, helping them live independently and offering rehabilitation services |
1,147 |
| 39 |
iHub onderwijs & familiezorgihub.nl
iHUB combines youth care, special education, and youth mental health care under one roof, providing tailored services to children and families in need |
1,141 |
| 40 |
Argos Zorggroepwerkenbijargoszorggroep.nl
Argos Zorggroep provides expert care and companionship to elderly individuals at home or in one of their eleven care homes They strive to create moments of happiness through attentive and compassionate support |
1,104 |
| 41 |
ActiViteactivite.nl
A professional and reliable care organization promoting self-reliance Providing tailored care services for all individuals, while valuing employees and collaborating with professionals |
1,053 |
| 42 |
Topazwerkenbijtopaz.nl
With over 50 years of experience in healthcare, this organization in the Leiden region offers specialized care to help clients lead their desired lives |
1,053 |
| 43 |
Zuidwesterwerkenbijzuidwester.nl
This organization provides support for individuals with intellectual disabilities and acquired brain injuries, offering services such as housing, day programs, and meaningful employment |
875 |
| 44 |
Basaltbasaltrevalidatie.nl
"Expert in rehabilitation care, with 11 locations in South Holland North Specializing in helping individuals adjust to new situations and live independently" |
826 |
| 45 |
Saffiersaffiergroep.nl
A innovative healthcare organization in The Hague, focusing on supporting elderly individuals to maintain their identity and autonomy, whether living at home or in one of their 9 locations |
781 |
| 46 |
Alrijne Zorggroepalrijne.nl
Providing human-centered, safe, and affordable healthcare through efficient and transparent operations, with multiple hospital locations and care facilities in the region |
772 |
| 47 |
CuraMarecuramare.nl
The company provides accessible healthcare services including hospital care, elderly care, home care, maternity care, treatment, and rehabilitation in specific regions |
769 |
| 48 |
Stichting Humanitas Rotterdamstichtinghumanitas.nl
An organization founded in 1959 promoting independence, positivity, and community through innovative care, housing, and social services for seniors and families |
756 |
| 49 |
Horizon Jeugdzorg en Onderwijshorizon.eu
This company educates, guides, and treats youth and families with severe complex issues in multiple locations They focus on empowering individuals to take control of their own lives |
722 |
| 50 |
Rijndam Revalidatierijndam.nl
The company focuses on rehabilitation, empowering patients to realize their full potential through innovative solutions, promoting self-discovery and personal growth |
679 |
| 51 |
HWW zorghwwzorg.nl
A neighborhood-focused healthcare organization in The Hague, providing personalized care at home or in one of their nine locations, prioritizing clients' needs and preferences |
673 |
| 52 |
Het Van Weel-Bethesda Ziekenhuisvanweelbethesda.nl
A basis hospital with a specialized approach, referring patients to partners for advanced treatments, while providing a predominantly Protestant-Christian care environment |
593 |
| 53 |
De Hoopdehoop.org
An evangelical institution providing psychiatric care, addiction treatment, family support, and social housing for adults, youth, and children in multiple locations |
587 |
| 54 |
impegnoimpegno.nl
impegno provides temporary support at home for individuals facing mental and/or social challenges, offering guidance, treatment, and family support for all ages |
577 |
| 55 |
Cardiawerkenbijcardia.nl
A Christian care organization in the Hague and Rijswijk, providing compassionate care inspired by faith, hope, and love to over 1100 clients with personal attention and quality services |
570 |
| 56 |
Syndionsyndion.nl
The company provides support and services to people with disabilities, focusing on individual preferences and abilities for living, learning, working, and growing |
570 |
| 57 |
Schoonenbergschoonenberg.nl
Specializing in hearing solutions, this company provides expert advice, personalized service, and optimal care for individuals with specific hearing needs across the Netherlands |
391 |
| 58 |
Teylingereind - Forensisch Centrum Jeugdteylingereind.nl
Forensic Juvenile Center providing structure, skills, and support to help young boys successfully reintegrate into society through treatment and guidance |
288 |
| 59 |
nexeyenexeye.com
A European leader in optical retail, offering eyecare products and services through multiple brands, online and in-store, with a focus on affordability and innovation |
161 |
| 60 |
Clinical Diagnostics Nederlandclinicaldiagnostics.nl
Eurofins Clinical Diagnostics offers a wide range of diagnostic services and training courses, focusing on clinical chemistry, microbiology, cytology, histology, and molecular diagnostics |
119 |
| 61 |
Goudenhart | Specialisten voor lijf en ledengoudenhart.nu
Specializing in treatment and care for vulnerable elderly, rehabilitation patients, and those with chronic illnesses in various locations, offering a wide range of healthcare services |
94 |
| 62 |
B&B Healthcarebenbhealthcare.nl
Specializing in physiotherapy, rehabilitation, sports & medical fitness, focusing on orthopedic and sports injury rehabilitation Providing sports association support and training services |
65 |
| 63 | 59 | |
| 64 |
Active Health Centeractivehealthcenter.nu
Active Health Center Leidschenveen offers personalized multidisciplinary health solutions with a team of fitness coaches, therapists, trainers, and dietitians promoting an active lifestyle |
36 |
| 65 |
Living-Fitliving-fit.nl
A modern physiotherapy practice located in Bleiswijk, Pernis, and Heijplaat, offering various specialized treatments such as osteopathy, acupuncture, and medical fitness |
34 |
| 66 |
Fysiotherapie van den Bergfysiovdberg.nl
With over 45 years of experience, this physiotherapy practice in Alphen aan den Rijn focuses on empowering clients through personalized treatment plans for pain relief and prevention |
34 |
| 67 |
Fysiofit Den Haagfysiofit.com
A dynamic physiotherapy practice with six locations offering multidisciplinary care for a wide range of conditions, focusing on efficient treatment for client satisfaction and healthy growth |
29 |
| 68 |
Di毛tistenpraktijk HRCpraktijkhrc.nl
A leading dietitian practice in Rotterdam, with a team of 25 experts offering personalized guidance and a wide range of specialties |
28 |
| 69 |
mProve ziekenhuizenmprove.nu
A group of seven top clinical hospitals collaborating to shape the future of healthcare through innovative, data-driven approaches for improved patient outcomes |
26 |
| 70 |
Zorghotel De Kimzorghoteldekim.nl
A tranquil seaside hotel offering 40 beautiful rooms for adults needing care or post-surgery recovery, promoting faster rehabilitation through exercise, personal attention, and a vacation-like setting |
26 |
| 71 |
Fysical Hillegersbergfysical.nl
A gym in Hillegersberg offering fitness and physiotherapy services with a unique concept, providing safe workouts with experienced staff for active recovery |
21 |
| 72 |
FysioEffect B.V.fysioeffect.nl
Helping individuals recover optimally from injuries by identifying and addressing the root cause of the issue, rather than just treating symptoms |
18 |
| 73 |
Revalidatiecentrum Drechtsteden-Haaglandenrevalidatiecentrum.eu
Revalidatiecentrum Drechtsteden-Haaglanden specializes in treating complex chronic health conditions to improve patients' overall functioning and quality of life |
17 |
| 74 |
Jip Regtop Fysiotherapiefysiojipregtop.nl
Physiotherapy & Medical center offering rehabilitation and fitness services for various physical conditions, specializing in sports injuries with a focus on active recovery |
16 |
| 75 |
Multi Fysiomultifysio.nl
A physiotherapy practice in Leidschendam and Den Haag, focused on guiding clients towards optimal functional movement with various specialized treatments |
15 |
| 76 |
krachtwereld.nlkrachtwereld.nl
This company offers personal training, fitness, nutrition & dietetics, physiotherapy, and massage services to help individuals improve their overall well-being |
13 |
| 77 |
Fysiotherapie Hoog Ledefysiohooglede.nl
Specializing in physiotherapy, muscle-tendon treatment, sports rehabilitation, knee/hip replacement recovery, ultrasound, EPTE, and shockwave therapy at a new medical center |
12 |
| 78 |
ZIN van Bewegenzinfysiotherapie.nl
ZIN is a diverse sports and medical center offering fitness, physiotherapy, nutrition, and dance services in Moordrecht Every individual finds their own motivation to move |
11 |
| 79 |
Satiscare Zorggroep
Satiscare supports healthcare institutions in innovation and development, focusing on a multidisciplinary approach in preventive healthcare services |
10 |
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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 Oct 24, 2026.
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- SaaS companies in South Holland 125
- Critical infrastructure operators in South Holland 122
- Truck Transportation companies in South Holland 109
- Financial services firms in South Holland 107
- Hospitals and Health Care companies in South Holland 103
- Family-owned companies in South Holland 99
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- IT Services and IT Consulting companies in South Holland 81
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- Food and Beverage Manufacturing companies in South Holland 67
- Distributors and wholesalers in South Holland 65
- Public sector organisations in South Holland 61
- Insurance companies in South Holland 57
- Restaurants companies in South Holland 54
- Wellness and Fitness Services companies in South Holland 52
- Hotel and hospitality groups in South Holland 51
- IT services companies in South Holland 50
- Manufacturers in South Holland 50
- Retail companies in South Holland 48