Information technology (IT) projects are unsuccessful at a rate of 65% to 75% per year, in spite of employing the latest technologies and training employees. Although many studies have been conducted on project successes in U.S. companies, there is a lack of research studying the impact of various factors on software project success in offshore IT companies. The purpose of this quantitative study was to better understand the impact of various factors on software project success in offshore IT companies. The various factors examined were host country, highest degree earned by software team members, duration of the project, the software development life cycle (SDLC) methodology used, team structure, and the compensation of the team members. The study drew on resource-based, resource dependence, and person-organization fit theories. The research questions for the study examined (a) the relationship between various factors and software project success, and (b) the degree of association between various factors and software project success in offshore IT companies. Data were collected through a web-based survey from 163 experienced IT professionals working for an offshore IT company in India. The quantitative study employed an independent sample t-test, paired sample t-tests, Pearson correlation coefficient analysis, and multiple regression analysis for data analysis. Results of this study revealed that there is statistically significant association between software project success and various factors except host country. This study contributes to positive social change by identifying the impact of various factors on software project success in offshore IT companies, thus helping the project managers, programmers, and human resource (HR) managers of IT companies, and by contributing to the possible increase in software projects success rate. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]