US Census Bureau
Statistics of U.S. Businesses Download the excel sheet tabulated by Enterprise Employment Size
Business Dynamics Statistics Finding Data: from the [Data] page, click [Firm Characteristics Data Tables] or [Establishment Characteristics Data Tables].
Exports from Manufacturing Finding Data: Download Excel sheet and browse by tables. Table 4 includes detailed data for states and industries.
Economic Census (US Census Bureau);
Data.census.gov, 2017 Economic Census; refine your search results by geography, year, NAICS code and more. (Learn more about using this resource by watching this Data.Census.Gov Training Video)
USA Trade Online (Foreign Trade Division of the U.S. Census Bureau) Provides specific U.S. export and import information on more than 18,000 commodities worldwide.
Foreign Trade: State Trade Data (Foreign Trade Division of the U.S. Census Bureau).
Finding Data: follow the links to locate the data sets.
Economic Census: Concentration Ratios (US Census Bureau); All of these reports classify industries by the percent of output accounted for by the largest 4, 8, 20 and 50 companies. Only the manufacturing reports include the Herfindahl-Hirschman Index.
Finding Data: follow the labels in the page to find PDF or data in American Factfinder or use another similar page.
Bureau of Economics Analysis
Finding Data: download the XLSX sheet from the website
Input-Output Accounts Data
Finding Data: download from the website
Federal Trade Commission
Annual Competition Reports
Finding Data: check the exhibit statistics tables.
Business Expenditures (including advertising/promotion, Labor Cost and many more)
Retail Trade Industries
Monthly & Annual Retail Trade (US Census Bureau)
Whole Sale Industries
Annual Wholesale Trade (US Census Bureau)
Annual & Quarterly Services (US Census Bureau)
Data.census.gov - search engine for the digital content of the US Census Bureau
Annual Survey of Manufactures (US Census Bureau) - Includes ASM Tables, data and APIs.
Research and Development (R&D) Expenses
Business Research and Development and Innovation (National Science Foundation).
Finding Data: expand data tables and find the data on the list.