This selection of large companies in Algeria includes major operators in critical infrastructure. Sonatrach and Naftal Spa are prominent in the oil and gas sector, while Algérie Telecom, Ooredoo Algerie, and ATM Mobilis are key players in telecommunications. Sonelgaz provides electricity and gas, and Air Algérie is the national airline. These companies are primarily large, established organizations, many of them founded in the mid to late 20th century.
A notable pattern among these companies is their significant role in essential services. For example, SEAAL provides clean water, BNA Algérie and Société Générale Algérie are major banks, and CHU Mustapha is a leading hospital. The concentration of headquarters in Algiers and its surrounding areas, such as Hydra, Mohammadia, and Chéraga, indicates a central hub for these critical operations.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Sonatrachsonatrach.com
This Algerian government-owned company exploits hydrocarbon resources, covering all aspects of the oil and gas industry chain: upstream, midstream, and downstream operations. |
47,510 | |||
| 2 |
sonelgazsonelgaz.dz
An Algerian operator providing electricity and gas energy supply services, with a historical presence in the sector |
11,567 | |||
| 3 |
Algérie Telecomalgerietelecom.dz
Leading telecommunications company in Algeria, constantly adapting to technological advancements and market changes to maintain a strong position through diverse, innovative services and solutions |
11,031 | |||
| 4 |
Naftal spanaftal.dz
Distributes petroleum products, including various fuels, bottled gas, bitumens, tires, aviation fuels, marine fuels, lubricants, and special products across Algeria. |
6,409 | |||
| 5 |
Ooredoo Algerieooredoo.dz
Provides mobile telephone services, broadband solutions, digital futures, and fiber technologies to consumer and business markets in MENA. |
5,229 | |||
| 6 |
Algérie Posteposte.dz
Provides legal services and support based in Algiers, Algeria, focusing on legal matters and client assistance in the region. |
4,833 | |||
| 7 |
ATM Mobilismobilis.dz
Mobile telecommunications company operating extensive network infrastructure, offering innovative mobile services and prepaid solutions to millions of subscribers. |
4,617 | |||
| 8 | 4,018 | ||||
| 9 |
Air Algérieairalgerie.dz
Established in 1947, this national airline of Algeria operates flights across 5 continents, aiming to transport a large number of Algerians with care and dedication |
2,828 | |||
| 10 |
Algerian National Drilling Company ENAFORenafor.dz
Specializes in oilfield drilling operations, providing comprehensive drilling services and solutions for the oil and gas industry. |
2,497 | |||
| 11 | 1,738 | ||||
| 12 |
BNA Algériebna.dz
A leading national bank offering a wide range of banking and insurance products and services to over 26 million individual and business customers |
1,718 | |||
| 13 |
CHU Mustaphachu-mustapha.dz
A leading hospital in Algeria offering a wide range of medical services including neonatology, ophthalmology, neurology, and forensic medicine |
1,532 | |||
| 14 |
Société Générale Algériesocietegenerale.dz
Provides diverse and innovative banking services to individuals, professionals, and businesses through extensive branch network and dedicated business centers. |
1,478 | |||
| 15 | 1,452 | ||||
| 16 |
AIR ALGÉRIEairalgerie.dz
A national airline founded in 1947 with a fleet of 56 aircraft, constantly evolving to meet international standards and competitive challenges |
1,372 | |||
| 17 |
Société Nationale d'Assurance SAAsaa.dz
Leading insurance provider in Algeria, specializing in automobile insurance but expanding into other areas such as agriculture and transportation |
1,249 | |||
| 18 |
Banque Extérieure d'Algériebea.dz
Specializes in exclusive financing for large Algerian energy and industrial enterprises, with a focus on foreign trade operations Offers diverse financial services to clients |
1,248 | |||
| 19 | 1,207 | ||||
| 20 |
CNEP-Banquecnepbanque.dz
Specialized in savings collection, home loans, and financing for construction projects, energy, water, petrochemicals, and aluminum production With a wide national presence |
1,145 | |||
| 21 |
CPA Bankcpa-bank.dz
A financial institution offering a wide range of banking services, focusing on sectors like construction, healthcare, commerce, hospitality, media, SMEs, and promoting Islamic finance |
1,125 | |||
| 22 |
BDL - Banque de Développement Localbdl.dz
This organization is a major player in financing various sectors, including small and medium-sized businesses, trade, professionals, individuals, households, and housing development |
1,110 | |||
| 23 |
Hyproc Shipping Company S.p.A.hyproc.dz
Specializing in LNG and LPG transportation with over 41 years of experience, our fleet offers a wide range of maritime services globally |
1,100 | |||
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. | |||||
| 24 |
COMPAGNIE ALGERIENNE DES ASSURANCES - CAATcaat.dz
A public insurance enterprise fully owned by the Algerian government, specializing in covering risks for both private and public major clients |
953 | |||
| 25 |
Bank of Algeria بنك الجزائرbank-of-algeria.dz
Established in 1962, this institution oversees monetary policy, loans, and banking operations to promote economic development while maintaining exchange rate stability |
946 | |||
| 26 |
بنك الفلاحة و التنمية الريفية -BADR Banquebadrbank.dz
A national financial institution founded in 1982, specializing in banking services for the agricultural, agro-food, fishing, and aquaculture sectors |
865 | |||
| 27 |
BNP Paribas El Djazaïrbnpparibas.dz
A universal bank in Algeria, part of a leading European banking group, providing high-quality services to retail and corporate clients |
815 | |||
| 28 |
Banque de Développement Localbdl.dz
Building a sustainable future through conventional, Islamic, and digital financial solutions Let's create a better tomorrow together |
800 | |||
| 29 |
Banque de l'Agriculture et du Développement Rural
A banking institution in Algeria focused on agricultural and rural development, located in Algiers |
666 | |||
| 30 |
La Caisse Nationale d’Epargne et de Prévoyance-Banquecnepbanque.dz
A public bank with a strong presence nationwide, offering a wide range of financial services to individuals, households, professionals, and businesses since 1964 |
590 | |||
| 31 |
Établissement Hospitalo Universitaire d'Oranehuoran.dz
The university hospital institution in Oran provides healthcare services, with a focus on education and research, under the Ministry of Health's administration |
565 | |||
| 32 |
Trust Bank Algérietrustbank.dz
Private Algerian bank offering innovative remote banking, credit, investment, and financing solutions tailored to client needs since 2002. |
492 | |||
| 33 |
CASH Assurancescash-assurances.dz
A reliable and innovative insurer specializing in covering complex risks, with a focus on excellence and expanding offerings for businesses |
484 | |||
| 34 |
SALAMA ASSURANCES ALGERIEsalama-assurances.dz
Licensed Algerian joint-stock insurance company offering comprehensive insurance operations, part of the international SALAMA Islamic insurance group. |
472 | |||
| 35 |
CNAS Direction Généralecnas.dz
The CNAS provides social insurance to salaried workers for health, maternity, disability, occupational accidents, and retirement in Algeria |
449 | |||
| 36 |
GRTG/spa SONELGAZ.grtg.com
It manages the national gas transport network, ensuring adequate capacity and operation under regulated economic principles, with a workforce of 1,291 employees |
396 | |||
| 37 |
Groupe Telecom Algérie مجمع اتصالات الجزائرgta.dz
A telecommunications conglomerate based in Algeria, providing various communication services and solutions to individuals and businesses in the country |
387 | |||
| 38 |
بنك السلام الجزائرalsalamalgeria.com
A multi-purpose bank in Algeria providing innovative and high-quality banking services in accordance with Islamic principles, aiming for sustainable value for all stakeholders |
375 | |||
| 39 |
ANESRIFanesrif.dz
A public establishment overseeing railway projects, gathering resources to ensure timely and successful implementation of modernization plans |
368 | |||
| 40 |
Banque Al Baraka d'Algériealbaraka-bank.dz
Provides Sharia-compliant banking products and financing solutions for families, professionals, and businesses, including investment and consumer financing. |
352 | |||
| 41 |
Pharmacie Centrale des Hôpitauxpch.dz
The company is an industrial and commercial establishment that supplies pharmaceutical products to both public and private hospitals |
327 | |||
| 42 |
Télédiffusion d'Algérie - TDAtda.dz
A public industrial and commercial entity providing radio and television broadcasting services, internet access, audiovisual services, and ICT solutions |
325 | |||
| 43 |
GIG ALGERIAgig.dz
Provider of various insurance services in Algeria, with a focus on customer satisfaction and quality management certified to ISO 9001 standards Expanding internationally through strategic partnerships |
319 | |||
| 44 |
Entreprise Portuaire De Skikda EPS
Established in 1989, we specialize in port operations, including handling, docking, towing, piloting, managing tools, and security services ISO certified |
216 | |||
| 45 |
CHU Béjaïachubejaia.dz
A hospital and university center located in Bejaia, Algeria, providing medical care, education, and research services to the local community |
184 | |||
| 46 |
Hôpital Chahids Mahmoudihcm-dz.com
A private hospital offering medical and surgical care in various specialties, including a 24/7 emergency department, with advanced radiology and cancer diagnostic and treatment services |
183 | |||
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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.
More company lists in Algeria
- The largest companies in Algeria 320
- Public sector organisations in Algeria 84
- Manufacturers in Algeria 55
- Education providers in Algeria 44
- Higher Education companies in Algeria 40
- Retail chains in Algeria 34
- Financial services firms in Algeria 25
- Research institutes in Algeria 25