The economy of Chittagong is one of the largest and most rapidly growing economies in Bangladesh. As of 2014, Chittagong is home of some of Bangladesh's and the world's top corporations. Chittagong is the port-city of Bangladesh and the busiest port in South Asia. Chittagong is the export hub of Bangladesh and it grosses more than $20 billion from export, accounting for 45% of Bangladesh's national export. In 2014, Chittagong's gross state productwas $41.45 billion in nominal terms and $174.06 billion in purchasing power parity, four times as much as Nepal and equivalent to Myanmar. Chittagong's per capita income is $5, 719; highest in the country and poverty rate and unemployment rate is lowest; reported 4% and 4.70% in 2014. Chittagong is the largest province of Bangladesh in terms of size and second largest in population. Chittagong has the best standard of living among all Bangladeshi Divisions. As of 2014, annual GNP growth of Chittagong is 6.3%.
Abul Khair GroupA K Khan & Company: A.K. Khan & Company Ltd. is one of the oldest and most renowned private sector organisations in Bangladesh. Late Mr. Abul Kasem Khan, popularly known as A.K. Khan, established the company after the Second World War in 1945. Mr. A.K. Khan started his business from Chittagong, and after India and Pakistan separated in 1947, Chittagong emerged as the foremost port city and business centre of the country.BSRM: Bangladeshi steel manufacturing conglomerate based in Chittagong. It was founded in 1952. The company generates $800 million revenue.Habib Group: Habib Group was founded in 1947.Currently company's annual turnover is close to $500 million, and employs more than 20, 000 employees and many manufacturing locations throughout Bangladesh.Jamuna Oil Company: Jamuna Oil Company Limited (estd. as Pakistan National Oil in 1964; renamed as Bangladesh National Oil in 1972) is a subsidiary of the Bangladesh Petroleum Corporation that nationally markets Octane, Petrol, Diesel, Kerosene, Furnace Oil, Bitumen and Lubricants in Bangladesh.KDS Group: Founded in 1983, through the establishment of one of the first garments industries in Bangladesh, Today the total group generates $500 million of annual revenues in total with over 25, 000 employees, staff and workers.M. M. Ispahani LimitedPadma Oil Company: The Padma Oil Company Limited, formerly Burmah Eastern Limited, is a Bangladesh state owned petroleum company with its head office in Strand Road, Chittagong. It is a descendant of the historic Burmah Oil Company in the British Empire and began operations in Bengal in 1903. In 1965, Burmah Eastern was established in Chittagong jointly by Burmah Oil and East Pakistani investors.PHP Group (BD)S. Alam Group of Industries: Bangladeshi industrial conglomerate. The industries under this group include Food & Allied Products, Steel, Banking, Consumer products, Sugar, Cement, Power, Energy, Transportation, Shipping, Manufacturing, Hospitality, Financial Institution, Agro, Trading, Oil, Gas. Annual turnover was recorded $2.0 billion in 2014.Seamark Group: multinational food processing conglomerate wholesale company with offices in Manchester, Chittagong, New Jersey and Brooklyn. The company was founded in 1976 and established in 1991 by Iqbal, who is considered as one of the richest men in United Kingdom, Bilal and Kamal Ahmed. Annual turnover is $300 million
Shipbuilding is a growing industry in Bangladesh with great potentials.Bangladesh has a long history of shipbuilding dating back to the early modern era. However, shipbuilding has become a major promising industry in recent years when the locally made ships began to be exported. Bangladesh has now over 200 shipbuilding companies, mostly concentrated in Dhaka, Chittagong, Narayanganj, Barisal and Khulna.
Because of the riverine geography of Bangladesh, ships have been playing a major role in the trade affairs of the people of this country since the ancient times. According to the accounts of the 14th century Moroccan traveler Ibn Batuta, there used to be large fleets of warships docked in various ports of the country. A medieval European traveler Caesar Frederick documented that the port city of Chittagong was a manufacturing hub of large ships during the mid 15th century. The volume of shipbuilding swelled extensively during the Mughal period. During the 17th century, the shipyards of Chittagong used to build warships for the Sultan of Turkey.
The Royal Navy had many warships built in Chittagong, some of which were also used in the Battle of Trafalgar in 1805. Khulna Shipyard, the first modern shipyard of Bangladesh, was established in 1957, constructed by a German firm. Initially a private concern, the shipyard was later nationalized and came under the control of Bangladesh Navy in 1999.
In 1979, the sector received its first foreign investment after the independence of Bangladesh when Mitsui Engineering and Shipbuilding Industry, a Japanese enterprise, formed a joint venture with High Speed Shipyard of Bangladesh to establish a shipyard at Fatullah, Narayanganj. By the 2000s, several more private shipyards were established and in 2008, Bangladesh became a ship exporting country.
Ananda Shipyard and Shipways Limited(ASSL), founded in 1983 on the bank of Meghna river, became the first Bangladeshi shipbuilding company to export an ocean-going ship when it transferred the locally built "Stella Maris" to a Danish firm. ASSL has since then secured several more contracts, mostly from the European countries. Western Marine Shipyard is another company, based in Chittagong, which has secured many export contracts. There is also another shipbuilding company and they have the third largest shipyard in Bangladesh and it is situated in Meghna. The company's name is Khan Brothers Shipbuilding Limited. 
The potentials of shipbuilding in Bangladesh has made the country to be compared with countries like China, Japan and South Korea. Referring to the growing amount of export deals secured by the shipbuilding companies as well as the low cost labor available in the country, experts suggest that Bangladesh could emerge as a major competitor in the global market of small to medium ocean-going vessels.