The study determined the effect of workforce involvement on organizational effectiveness of Champion Breweries Plc. Akwa Ibom State. The specific objectives are to determine the effect of participation on job satisfaction of Champion Breweries Plc. Akwa Ibom State. The study adopted a survey research design. The researcher adopted primary source of data to collect information from the respondents. The population of the study 238 consist of the entire staff of Champion Breweries Plc. Akwa Ibom State. The sample size of the study was 149 respondents. A total of numbers of one hundred and forty-nine (149) questionnaires were distributed to the respondents in the study area. Out of this number a total of one hundred and thirty-nine (139) were returned while ten (10) were rejected as a result of irregularities in the response pattern which constitute 93.2% that formed the basis of this study. The simple random sampling method was used to gather information from the respondents. Regression model was employed, to test the relationships between dependent and independent variables of the study. The findings of the study stated that there is a significant effect of participation on job satisfaction of Champion Breweries Plc. Akwa Ibom State with p-value =.015<.05% significance level. The study recommended that Organization under the study should encourage employees to give meaningful suggestions and participate more in decision making as this enhances organizational performance.