Nonresponse bias analysis is required for economic indicator surveys if overall unit response rate falls below 80 percent. The unit response rate of the Quarterly Financial Report (QFR) survey is less than 80 percent; hence, this nonresponse bias analysis is performed as mandated by the Office of Management and Budget (OMB). First, unit response rates and total quantity response rates are reviewed. Next, the correlation study between sample frame assets and survey assets is presented. Finally, the relative nonresponse bias between respondents and nonrespondents for certainty companies is presented along with the equivalence of means test for non-certainty companies. This comprehensive analysis determines the sources for nonresponse bias and its magnitude.