This research aims to: 1) study the factors that affect production revenue increase of garment export, 2) study the efficiency of the revenue increase in the garment export, and 3) compare the factors that affect revenue increase of garment export in Bangkok classifying by personal factors and organization size. The research samples were 157 samples. The data were analyzed using basic statistics including percentage, arithmetic, and standard deviation. In addition, ANOVA one-way (one-way analysis of variance) test and post-hoc analysis based on the test results Homogeneity of variance were applied for the research analysis. The research hypothesis testing found that the comparison of employee opinions about the factors that affect the cost of garments production based on personal factors; including age, educational level, monthly income, job position, and organization factors; including organization size and duration of operation, were different and statistically significant at the .05 level.