Kenya's higher education institutions are in charge of offering top-notch instruction in order to realize Kenya's Vision 2030. The administration of Kenya's chosen public universities has made the performance or accomplishment of these institutions a top priority. Higher education institutions' most valuable assets are generally their employees. As a result, a lot of higher institutions in Kenya have made investments in biometric clocking system analytics to deal with the absenteeism problem. Reports indicate that poor performance as a result of staff absenteeism continues to be one of the biggest challenges facing Kenyan higher institutions, despite major investment in biometric clocking system analytics. The study anticipated to ascertain the effect of biometric clocking system infrastructure on performance of selected tertiary institutions in Kiambu County. The study was founded on Resource-Based View Theory. The target population was the staff of the selected tertiary institutions including Kenyatta University, Mount Kenya University, Zetech University and Kiambu Institute of Science and Technology, within Kiambu County. From the population of 4117 staff a sample of 363 was adapted to represent the entire population. The proposed study adopted stratified random sampling where the population was grouped in according to different responsibilities played in the institutions. The instrument returned a Cronbach’s’ reliability of 0.86. The results exhibited that biometric infrastructure (β=0.386: p<0.05) have a significant influence on performance of tertiary institutions. The study recommends that, institutions should focus on deployment of suitable hardware and software for biometric analytics. Finally, organizations need to create passwords and verification techniques that are secure and impossible for cyber hackers to crack in order to improve performance of Biometric analytics. This study may contribute to increased knowledge on current indicators of on the .....