摘要：The purpose of this study was to assess mobile phone service with the greatest positive effect on firm performance in Thika town in Kenya. It adopted an exploratory design where a two-stage, Stratified and Simple random sampling, technique was employed. A total of 120 questionnaires were personally administered- yielding a response rate of 100%. Data was subjected to detailed exploratory analysis through descriptive procedures. Reliability and internal consistency of the measurement models was tested using Cronbach’s alpha. Results of the study revealed that mobile calls have the greatest positive effect on performance of manufacturing firms. M-pesa ranked second, Mobile messaging third while mobile internet and mobile banking ranked fourth and fifth respectively. It is evident that mobile phone calls, M-pesa, and Mobile instant messaging had positive significant effect on sales volume, Profit, worker productivity and Customer satisfaction ratings among others.
