This book gives an understanding about manufacturing sectors in selected Asian enterprises in related to their size, structure, their growth and economies. A survey has been carried out in Japan, Taiwan, Korea, Thailand, Bangladesh, and Vietnam in order to compare the distribution of enterprises by size. This information shows three different patterns in manufacturing sector which makes an impact on the economy. In addition to, this study talks about the size structure in India and why they are limited only to low and high manufacturing sectors where it can make a negative impact on the economy.