The complete sequencing of various plant and animal genomes (http://www.ncbi.nlm.nih.gov/genomeprj) and the advances in transcriptomics, proteomics and metabolomics have resulted in a virtual explosion in biotechnology and molecular biological studies. These studies involve large scale and complex experimentation. Keeping this in view we have developed a tool Lab Companion which serves to automate the maintenance of molecular biology and biotechnology laboratories. A relational database Lab Companion software was constructed. The backend was created using Microsoft SQL server 2005 and front end was created using Microsoft visual studio 2005 framework 2.0. The developed tool will serve to automate the management of stock inventory of the biotechnology and molecular biology laboratories.