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Critical infrastructure operators headquartered in Algeria

Tamtam tracks 46 critical infrastructure operators headquartered in Algeria. This list ranks all of them by number of employees on LinkedIn, led by Sonatrach, sonelgaz and Algérie Telecom. Their median headcount is 1,100. Half of them were founded in 1991 or later.

🇩🇿 Algeria46 companiesUpdated Nov 12, 2026

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.

#CompanyIndustryHeadquarters EmployeesFounded
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.

Oil and Gas 🇩🇿 Hydra 47,510 1963
2
sonelgazsonelgaz.dz

An Algerian operator providing electricity and gas energy supply services, with a historical presence in the sector

Government Administration 🇩🇿 Alger 11,567 1969
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

Telecommunications 🇩🇿 Mohammadia 11,031 2003
4
Naftal spanaftal.dz

Distributes petroleum products, including various fuels, bottled gas, bitumens, tires, aviation fuels, marine fuels, lubricants, and special products across Algeria.

Oil and Gas 🇩🇿 Chéraga 6,409 1981
5
Ooredoo Algerieooredoo.dz

Provides mobile telephone services, broadband solutions, digital futures, and fiber technologies to consumer and business markets in MENA.

Telecommunications 🇩🇿 Chéraga 5,229 2004
6
Algérie Posteposte.dz

Provides legal services and support based in Algiers, Algeria, focusing on legal matters and client assistance in the region.

Consumer Services 🇩🇿 Algiers 4,833 2003
7
ATM Mobilismobilis.dz

Mobile telecommunications company operating extensive network infrastructure, offering innovative mobile services and prepaid solutions to millions of subscribers.

Telecommunications 🇩🇿 Bab Ezzouar 4,617 2003
8
Djezzydjezzy.dz

A leading mobile telecommunication operator in Algeria with over 4000 employees and 17 million subscribers, favored by Algerians in all aspects

Telecommunications 🇩🇿 Alger 4,018 2001
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

Airlines and Aviation 🇩🇿 Bab Ezzouar 2,828 1947
10
Algerian National Drilling Company ENAFORenafor.dz

Specializes in oilfield drilling operations, providing comprehensive drilling services and solutions for the oil and gas industry.

Oil and Gas 🇩🇿 Ouargla 2,497 n/a
11
SEAALseaal.dz

A public corporation in Algeria provides clean water to residents in two provinces, serves over 760,000 clients, and employs over 6,000 people

Environmental Services 🇩🇿 Alger 1,738 2006
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

Banking 🇩🇿 Alger 1,718 1966
13
CHU Mustaphachu-mustapha.dz

A leading hospital in Algeria offering a wide range of medical services including neonatology, ophthalmology, neurology, and forensic medicine

Hospitals and Health Care 🇩🇿 Sidi M'Hamed 1,532 1854
14
Société Générale Algériesocietegenerale.dz

Provides diverse and innovative banking services to individuals, professionals, and businesses through extensive branch network and dedicated business centers.

Banking 🇩🇿 Alger 1,478 2000
15
SETRAMsetram.dz

SETRAM aims to reinvent mobility through customer satisfaction, quality service, digital transformation, sustainable operations, and a focus on safety and environmental preservation

Rail Transportation 🇩🇿 Kouba 1,452 2012
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

Airlines and Aviation 🇩🇿 Algiers 1,372 1947
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

Insurance 🇩🇿 Algiers 1,249 1963
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

Banking 🇩🇿 Algerie 1,248 1967
19
Air algerieairalgerie.dz

An airline specializing in passenger and freight transportation

Airlines and Aviation 🇩🇿 Algiers 1,207 n/a
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

Banking 🇩🇿 Alger 1,145 n/a
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

Banking 🇩🇿 Alger 1,125 1966
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

Banking 🇩🇿 Staoueli 1,110 1985
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

Maritime Transportation 🇩🇿 Oran 1,100 1982

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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

Insurance 🇩🇿 Algiers 953 1985
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

Banking 🇩🇿 Alger 946 1962
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

Banking 🇩🇿 Alger 865 1982
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

Banking 🇩🇿 Algérie 815 2002
28
Banque de Développement Localbdl.dz

Building a sustainable future through conventional, Islamic, and digital financial solutions Let's create a better tomorrow together

Banking 🇩🇿 Staoueli 800 1985
29
Banque de l'Agriculture et du Développement Rural

A banking institution in Algeria focused on agricultural and rural development, located in Algiers

Banking 🇩🇿 Algiers 666 n/a
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

Banking 🇩🇿 Alger 590 1964
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

Hospitals and Health Care 🇩🇿 Oran 565 n/a
32
Trust Bank Algérietrustbank.dz

Private Algerian bank offering innovative remote banking, credit, investment, and financing solutions tailored to client needs since 2002.

Banking 🇩🇿 Alger 492 2002
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

Insurance 🇩🇿 Algiers 484 1999
34
SALAMA ASSURANCES ALGERIEsalama-assurances.dz

Licensed Algerian joint-stock insurance company offering comprehensive insurance operations, part of the international SALAMA Islamic insurance group.

Insurance 🇩🇿 Alger 472 2000
35
CNAS Direction Généralecnas.dz

The CNAS provides social insurance to salaried workers for health, maternity, disability, occupational accidents, and retirement in Algeria

Civic and Social Organizations 🇩🇿 Alger 449 n/a
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

Oil and Gas 🇩🇿 Alger 396 2004
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

Telecommunications 🇩🇿 Bab Ezzouar 387 2017
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

Banking 🇩🇿 Dely Brahim 375 2008
39
ANESRIFanesrif.dz

A public establishment overseeing railway projects, gathering resources to ensure timely and successful implementation of modernization plans

Truck Transportation 🇩🇿 Rouiba 368 2005
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.

Banking 🇩🇿 Alger 352 1991
41
Pharmacie Centrale des Hôpitauxpch.dz

The company is an industrial and commercial establishment that supplies pharmaceutical products to both public and private hospitals

Hospitals and Health Care 🇩🇿 Dar el Beida 327 n/a
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

Telecommunications 🇩🇿 Alger 325 1962
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

Insurance 🇩🇿 Alger 319 1998
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

Maritime Transportation 🇩🇿 Skikda 216 1989
45
CHU Béjaïachubejaia.dz

A hospital and university center located in Bejaia, Algeria, providing medical care, education, and research services to the local community

Medical Practices 🇩🇿 Bejaia 184 1991
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

Hospitals and Health Care 🇩🇿 Tizi Ouzou 183 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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