The purpose of this research is to do a systematic literature review on the field of “service supply chain” taking scholarly articles of top-rank journals from the year 1999 to 2020 making it a first-ever 20 years of comprehensive systematic literature review in the area of “service supply chain”. The research aims to encapsulate the major contributions and themes/concepts in the SSC area and future research directions that could be further researched to advance the field. The research also seeks to review major theories supporting or associated with the SSC domain. The research is based on the methodology of SLR by taking an initial sample of 894 papers using relevant and suitable search keywords, filtering out the unrelated ones using proper criteria, scanning, and going through a large number of articles and finally doing a comprehensive analysis on the selected ones taken from Scopus database. The research will greatly help the professionals as it will not only act as a guideline to understand various concepts, but more importantly, they can take advantage of future research directions to take the industry far ahead in strategizing the area of service supply chain management.