East India Trading Co., - Rubber hand stamps

The East India Company was an English, and later British, joint-stock company founded in 1600 and dissolved in 1874. It was formed to trade in the Indian Ocean region, initially with the East Indies (the Indian subcontinent and Southeast Asia), and later with East Asia. The company gained control of large parts of the Indian subcontinent and colonised parts of Southeast Asia and Hong Kong. At its peak, the company was the largest corporation in the world by various measures and had its own armed forces in the form of the company's three presidency armies, totalling about 260,000 soldiers, twice the size of the British army at the time.

Originally chartered as the "Governor and Company of Merchants of London Trading into the East-Indies", the company rose to account for half of the world's trade during the mid-1700s and early 1800s particularly in basic commodities including cotton, silk, indigo dye, sugar, salt, spices, saltpetre, tea, and later, opium. The company also initiated the beginnings of the British Empire in India.

The company eventually came to rule large areas of India, exercising military power and assuming administrative functions. Company-ruled areas in India gradually expanded after the Battle of Plassey in 1757 and by 1858 most of modern India, Pakistan, and Bangladesh was either ruled by the company or princely states closely tied to it by treaty. Following the Indian Rebellion of 1857, the Government of India Act 1858 led to the British Crown assuming direct control of India in the form of the new British Raj.

The company subsequently experienced recurring problems with its finances, despite frequent government intervention. The company was dissolved in 1874 under the terms of the East India Stock Dividend Redemption Act enacted one year earlier, as the Government of India Act had by then rendered it vestigial, powerless, and obsolete. The official government machinery of the British Raj had assumed its governmental functions and absorbed its armies.