This selection of critical infrastructure operators in Tunisia features large established companies, mainly in telecommunications, banking, and energy. Notable examples include Tunisie Telecom, which provides fixed, mobile, and internet services; Ooredoo Tunisie, a mobile telecommunications operator; BIAT, a financial group with extensive banking and insurance services; and Société Tunisienne de l'Electricité et du Gaz (STEG), responsible for the country's electricity and gas networks. TUNISAIR, the national airline, is also present. The companies listed are predominantly headquartered in Tunis, indicating a strong centralization of critical infrastructure management within the capital city.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Tunisie Telecomtunisietelecom.tn
Provides fixed, mobile, and internet communication services with modern infrastructure, supporting culture, education, and digital transformation in Tunisia. |
5,754 | |||
| 2 |
Ooredoo Tunisieooredoo.tn
A leading mobile telecommunications operator in Tunisia, focusing on innovative services, quality customer service, and expanding network coverage for its subscribers |
3,714 | |||
| 3 |
BIATbiat.com.tn
A leading financial group in Tunisia with a network of 205 branches, offering a wide range of services including banking, insurance, asset management, and international consulting |
3,662 | |||
| 4 |
Société Tunisienne de l'Electricité et du Gaz (STEG)steg.com.tn
Public entity responsible for electrifying the country, developing natural gas network, and maintaining electricity and gas infrastructure with a focus on performance and service quality |
2,934 | |||
| 5 |
TUNISAIRtunisair.com
National Tunisian airline founded in 1948 Operates domestic and international flights, providing transportation services with a focus on quality and safety standards |
2,805 | |||
| 6 |
STEG Tunisiesteg.com.tn
Management of electricity and natural gas production, transmission, distribution, electrification, and infrastructure development across the country. |
2,111 | |||
| 7 |
STB Bank الشركة التونسية للبنكstb.com.tn
National bank focused on economic development, digital transformation, customer innovation, financial inclusion, and recognized for governance and social responsibility. |
1,581 | |||
| 8 |
BNA - Banque Nationale Agricolebna.tn
Provider of universal banking services, focusing on identity and personalized financial solutions to meet clients' needs |
1,409 | |||
| 9 |
UIB - Groupe Société Généraleuib.com.tn
Established in 1964, this financial institution in Tunisia offers a wide range of banking services to individuals, businesses, and institutions through its network of over 130 branches |
1,393 | |||
| 10 |
Amen Bankamenbank.com.tn
More than a century-old bank with deep-rooted professionalism and history, standing as a distinguished leader in the national banking sector. |
1,277 | |||
| 11 |
Attijari bank Tunisieattijaribank.com.tn
Universal Tunisian bank operating a wide network of branches, business centers, and specialized subsidiaries offering financial services to individuals, professionals, and businesses |
1,258 | |||
| 12 |
BANQUE DE TUNISIEbt.com.tn
Finances businesses, individuals; major actor in development projects across all sectors, respecting all credit risk management standards. |
1,251 | |||
| 13 |
Orange Tunisieorange.tn
Second largest private telecom operator in Tunisia offering fixed lines, mobile services, high-speed internet, mobile equipment, and value-added services. |
1,187 | |||
| 14 | 1,030 | ||||
| 15 |
Enda Tamweelendatamweel.tn
Microfinance institution promoting economic and social inclusion of vulnerable populations through credit, training, and support for micro-entrepreneurs in Tunisia. |
1,010 | |||
| 16 |
Nouvelair Tunisianouvelair.com
Specializing in low-priced flights to Tunisia from over 130 airports in 30 countries, including popular European cities like Paris, Munich, and Moscow |
931 | |||
| 17 |
TRANSTUtranstu.tn
Established for 45 years, this organization specializes in providing products or services in a particular industry or sector |
918 | |||
| 18 | 900 | ||||
| 19 |
SONEDEsonede.com.tn
A public establishment responsible for producing and distributing potable water throughout Tunisia, including studying, treating, managing technical networks, and commercial subscriber services |
845 | |||
| 20 |
CTN - Compagnie Tunisienne de Navigationctn.com.tn
Provides regular ferry and cargo shipping services between Tunisia and major Mediterranean ports, focusing on passenger and vehicle transport. |
735 | |||
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. | |||||
| 21 |
Société Nationale des Chemins de Fer Tunisiens | SNCFTsncft.com.tn
National public entity operating in various industries or sectors, providing services or products to the public or government |
716 | |||
| 22 |
Assurances COMAR et HAYETTcomar.tn
A leading insurance and reinsurance provider with strong financial backing and a focus on professionalism, innovation, and customer satisfaction in Tunisia |
634 | |||
| 23 |
Assurances Maghrebiamaghrebia.com.tn
Private insurance and reinsurance company providing financial protection and insurance solutions for individuals, professionals, and businesses since 1973. |
612 | |||
| 24 |
The Tunisian Civil Aviation And Airports Authority (OACA)oaca.nat.tn
Provider of aerodrome and approach control, air traffic services, aeronautical information, and airport management for 7 airports in Tunisia |
586 | |||
| 25 |
Banque Centrale de Tunisie - البنك المركزي التونسيbct.gov.tn
The institution is the central bank of Tunisia, focusing on maintaining price stability, managing reserves, supervising financial institutions, and advising the government on economic issues |
562 | |||
| 26 |
STAR ASSURANCESstar.com.tn
Leading insurance provider in Tunisia for individuals and businesses, with a focus on customer satisfaction, ethical practices, and excellent service tailored to clients' needs |
537 | |||
| 27 |
TUNISAIRtunisair.com
A leading airline established in 1948, specializing in traffic to and from Tunisia with a fleet of 29 aircraft serving 44 global destinations daily |
486 | |||
| 28 | 468 | ||||
| 29 |
WIFAK INTERNATIONAL BANKwifakbank.com
Specializing in Islamic banking, the organization transformed from a leasing company to provide financial services to underserved regions, aiming for growth in Tunisia and Africa |
449 | |||
| 30 |
Nouvelair Tunisienouvelair.com
Tunisian private airline operating Airbus A320 with over 130 European routes to Tunisia, focusing on safety and European standards |
414 | |||
| 31 |
LLOYD ASSURANCESlloyd.com.tn
Multibranch insurance company offering products for individuals, professionals, and businesses with capital growth, product innovation, and digital transformation. |
365 | |||
| 32 |
STEG International Servicessteg-is.com
Planning, design, supply, implementation, operation, and maintenance of electrical and gas production, transport, distribution, energy management, efficiency, training, and skills development. |
325 | |||
| 33 |
L'Office National de l'Assainissement (ONAS)onas.nat.tn
The organization was established in 1974 to manage sanitation, later expanded to include water protection and pollution control under environmental ministry supervision |
322 | |||
| 34 |
Microcredbaobab.com
An international microfinance institution providing credits to individuals with ongoing projects or young people aiming to start their own ventures |
283 | |||
| 35 |
GlobalNet Tunisiegnet.tn
A provider of internet services for individuals and businesses, offering diverse subscriptions, cloud solutions, managed services, and rich, impartial content |
267 | |||
| 36 | 266 | ||||
| 37 |
Société Tunisienne des Industries de Raffinage - STIRstir.com.tn
A Tunisian company specializing in refining crude oil for the national market, covering the country's petroleum product needs through production and importation |
241 | |||
| 38 |
Banque de Tunisie et des Émiratsbte.com.tn
Offers banking services including account management, mobile banking, currency exchange rates, credit and investment simulators, and corporate banking platform. |
225 | |||
| 39 |
IZI-Zitouna Paymentzitounapayment.com
A new secure online payment solution offering various services such as account opening, cash deposits/withdrawals, fund transfers, and bill payments through a mobile application |
186 | |||
| 40 |
Pharmacie Centrale de Tunisiepct.com.tn
Pharmacie Centrale de Tunisie is a biotechnology company based in Tunis, Tunisia, specializing in pharmaceutical products and health solutions |
183 | |||
| 41 |
Capital African Partners Bankcap-bank.com
An established investment bank in Tunisia, offering services such as mergers & acquisitions, corporate finance, advisory, bridge loans, private equity, and asset management |
16 | |||
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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 Nov 12, 2026.
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- Financial services firms in Tunisia 26