June 20, 2024


The RSM US Middle Market Business Index provides a leading measure of the performance of businesses that make up the heart and soul of our country's economy. In partnership with RSM, we've collected data on middle market firms since 2015 through quarterly surveys conducted by The Harris Poll. The survey is conducted four times a year, in the first month of each quarter: January, April, July, and October.

The survey panel consists of approximately 1,500 middle market executives and is designed to accurately reflect conditions in the middle market. 

Explore the Middle Market Business Index

What is the middle market?

The middle market is the backbone of the U.S. economy, accounting for one-third of total jobs and 40% of GDP.

Middle market organizations, which make up the “real economy,” are too big to be small and too small to be big. They have distinct challenges and opportunities around resources, labor, technology, innovation, regulation and more.

Special Reports on the Middle Market

Periodic publications that feature additional topical questions asked of MMBI respondents. These special questions can focus on a variety of topics, from cybersecurity concerns to emerging policy impact. Specific data and insights are provided.

For more information on the Middle Market Business Index, industry trends, and monthly economic updates, check out RSM's publications for middle market business leaders on