This selection of critical infrastructure operators in Riyadh includes major players in utilities, telecommunications, healthcare, and banking. Saudi Energy generates and distributes electricity, while stc is a digital champion focused on telecommunications. The Ministry of National Guard Health Affairs operates a multispecialty health system, and alinma is a financial institution with significant public investment. Tawuniya offers various insurance products, and NWC provides water and wastewater services. The companies listed are predominantly large organizations, many of which are well-established.
A notable pattern among these companies is their common headquarters in Riyadh, indicating the city's role as a central hub for critical infrastructure operations in Saudi Arabia. The founding dates span several decades, with some companies like King Faisal Specialist Hospital and Research Center established in the 1970s and 1980s, alongside more recent entities such as Health Co. founded in 2022, showcasing a mix of mature and newer organizations.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Saudi Energyse.com.sa
Generation, transmission, and distribution of electricity across Saudi Arabia, serving national energy needs and supporting regional development. |
23,962 | |||
| 2 |
stccareers.stc.com.sa
Innovative digital champion focused on enriching lives through collaborative work, fresh ideas, impactful solutions, and a commitment to sustainability Empowering and maximizing potential |
18,097 | |||
| 3 |
Ministry of National Guard Health Affairs (MNGHA)ngha.med.sa
Government-funded multispecialty health system integrating clinical care, training, research, and advanced technology across Saudi Arabia with centralized electronic records. |
14,914 | |||
| 4 |
King Faisal Specialist Hospital and Research Centerkfshrc.edu.sa
Provides a range of academic programs, training, and support services to students, focusing on quality education and community engagement. |
14,338 | |||
| 5 |
alinmaalinma.com
Saudi joint-stock financial institution with SAR 20 billion capital, major shareholders include Public Investment Fund, Pension Public Agency, and Social Insurance. |
13,996 | |||
| 6 |
Dr. Sulaiman Al Habib Medical Groupdrsulaimanalhabib.com
Develops and operates state-of-the-art medical facilities, providing innovative healthcare services across the Middle East, with a vision for global medical excellence and patient experience. |
13,452 | |||
| 7 |
alrajhi bankalrajhibank.com.sa
Established in 1957, this Islamic bank has over $100 billion in assets and a vast network of branches, ATMs, and remittance centers |
13,178 | |||
| 8 |
Tawuniyatawuniya.com
Offers motor, marine, fire, medical, engineering, energy, aviation, takaful, and casualty insurance products for retail and corporate clients. |
9,324 | |||
| 9 |
Mobilymobily.com.sa
It provides integrated telecom services for individuals, businesses, and carriers, with extensive wireless and FTTH networks across Saudi Arabia and beyond. |
8,775 | |||
| 10 |
NWCnwc.com.sa
Provision of water and wastewater services in Saudi Arabia, operating on commercial principles and adhering to international best practices. |
8,333 | |||
| 11 |
بنك البلاد | Bank Albiladbankalbilad.com.sa
The company provides innovative and genuine shariah-compliant banking products, fostering a culture of initiative, partnership, trust, and accountability in the Islamic banking sector |
6,980 | |||
| 12 |
Arab National Bankanb.com.sa
Universal commercial bank providing corporate and retail banking services with extensive branches, digital platforms, and ATM networks across Saudi Arabia. |
4,937 | |||
| 13 |
Health Co.health.sa
National state-owned company providing comprehensive and integrated healthcare services through health clusters serving Saudi Arabia. |
4,785 | |||
| 14 |
Tabby | تابيtabby.ai
Tabby offers flexible payment solutions for +10 million users and 30,000+ brands, reshaping how people shop, earn, and save Valued at $660 million |
4,456 | |||
| 15 |
Dallah Hospitaldallah-hospital.com
Providing comprehensive medical services with advanced technology and skilled professionals, focusing on patient satisfaction and clinical excellence. |
3,787 | |||
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. | |||||
| 16 |
Zain KSAsa.zain.com
Leading telecom operator in Saudi Arabia offering 5G, digital payments, cloud computing, IoT, fiber, and advanced technology solutions nationwide. |
3,354 | |||
| 17 |
Saudi Central Bank – SAMAsama.gov.sa
Maintaining monetary stability, supervising financial institutions, issuing currency, managing reserves, and supporting economic growth in Saudi Arabia. |
3,086 | |||
| 18 |
Acwaacwapower.com
Delivering essential power and water services across continents, focusing on transitioning to a carbon-free, greener future. |
2,983 | |||
| 19 |
flynasflynas.com
Provides affordable air travel services connecting various destinations, focusing on customer experience and memorable summer journeys. |
2,907 | |||
| 20 |
The Saudi Investment Banksaib.com.sa
Provides wholesale, retail, commercial banking, investment banking, trade finance, asset management, leasing, mortgages, insurance, and credit card services. |
2,679 | |||
| 21 |
Salamdxp.salam.sa
Leading Saudi telecom provider offering broadband, cloud, cybersecurity, satellite, and managed services to government, businesses, and consumers. |
2,285 | |||
| 22 |
Riyadh Air | طيران الرياضriyadhair.com
Airline based in Riyadh focusing on modern comfort, digital innovation, sustainability, and expanding service to over 100 destinations by 2030. |
2,209 | |||
| 23 |
National Medical Carecare.med.sa
Provides high-quality, patient-centered medical services through its network of hospitals and medical centers in Saudi Arabia. |
2,178 | |||
| 24 |
Bahri | البحريbahri.sa
A leading shipping and logistics company with a focus on innovation, technology-driven services, and global operations spanning oil, chemicals, bulk, and marine transportation |
2,172 | |||
| 25 |
Social Development Bank (SDB)sdb.gov.sa
Providing accessible developmental financing and financial awareness to support families, promote self-employment, and enhance small business economic participation. |
2,057 | |||
| 26 |
Riyadh Airportsriyadhairports.com
Managing and operating King Khalid International Airport, aiming to be a leading airport operator and industry role model in Saudi Arabia. |
1,951 | |||
| 27 |
PSMMCpsmmc.med.sa
Providing highest standards healthcare services, aiming to be benchmark hospital in kingdom, achieving excellence across all medical specialties. |
1,754 | |||
| 28 |
سابتكو | SAPTCOsaptco.com.sa
Provides extensive local and international bus transport services across Saudi Arabia with VIP, charter, and special event transportation options. |
1,696 | |||
| 29 |
Communications, Space & Technology Commission (CST)cst.gov.sa
Regulates Saudi communications, space, and technology sectors, fostering competitive environments, monitoring tech advancements, and attracting investment in the Kingdom. |
1,459 | |||
| 30 |
FLOW Consortium
Operations and maintenance of Riyadh Metro Lines 3, 4, 5, and 6, delivering safe, reliable rail services for Saudi Arabia's capital city. |
1,380 | |||
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
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 Riyadh
- The largest companies in Riyadh 297
- Multinational companies in Riyadh 78
- Companies with a mobile app in Riyadh 47
- Public sector organisations in Riyadh 43
- Retail chains in Riyadh 35
- Corporate groups and holding companies in Riyadh 34
- IT Services and IT Consulting companies in Riyadh 33
- Publicly traded companies in Riyadh 31
- IT services companies in Riyadh 27
- Government Administration companies in Riyadh 25
- Manufacturers in Riyadh 25