Dun and Bradstreet. Industry Accounting Manuals. Industry Norms and Key Business Ratios. Dun and Bradstreet Credit Services. Covers more than 800 kinds of businesses, arranged by Standard Industrial Classification code.
More detailed editions covering longer periods are available.
IRS Corporate Financial Ratios. Presents more than 70 financial ratios for each of over 200 industries based on an analysis of corporate tax returns. Industry Analyses, Statistics, and Leading Companies. Arsen J. Darnay, ed. Provides statistical profiles for 450 kinds of manufacturers including data on employment, production, financial ratios, and input-output rankings.