NAICS Sector 51

Information

74 sub-industries · IRS SOI + Census CBP 2023

What the Information Sector Numbers Reveal

The Information sector (NAICS 51) aggregates 74 distinct sub-industries into one benchmarking unit. At the sector level, the average net profit margin is 6.3% — a figure that is below the national median. Averages at this tier can mislead because they blend high-margin specialty lines with commodity operators: Information runs at 10.5%, while other sub-industries inside the same sector operate well below that headline. When you benchmark a business against a sector, always drop one level deeper to the NAICS 6-digit industry that matches your actual operations.

Scale metrics reinforce the story. Census Bureau CBP 2023 records 16,400,849 employees across 803,520 establishments in this sector, with $3.3T of annual receipts flowing through the IRS SOI filings. The largest employer sub-industry is Information with 1,262,348 workers, followed by Information at 912,645. Understanding which sub-industries drive headcount helps identify where labor cost trends, wage pressure, and hiring competition will concentrate — all of which feed directly into the profit margin shown above.

For operators, investors, and analysts, the right move is to use this sector page as a map rather than a conclusion. Click into any sub-industry below to see its actual NAICS-6 profit margin, entity-type breakdown (sole prop vs. S-corp vs. C-corp), state-level employment concentration, and SBA lending activity. Sector-level numbers are the aggregate; the real benchmarking precision lives one layer down in the IRS SOI and Census CBP micro-data that PlainBizBench surfaces on each industry page.

Avg Profit Margin

6.3%

Total Employment

16,400,849

Establishments

803,520

Total Receipts

$3.3T

All Industries in This Sector

Industry Profit Margin
Information

NAICS 511

9.4%
Information

NAICS 512

9.3%
Information

NAICS 515

10.5%
Information

NAICS 517

7.0%
Information

NAICS 518

-4.5%
Information

NAICS 519

6.8%

Top Profit Margins

10.5%
9.4%
9.3%
7.0%
6.8%

Largest Employers

  1. #1 Information 1,262,348
  2. #2 Information 912,645
  3. #3 Information 629,527
  4. #4 Information 333,045
  5. #5 Information 262,310

Frequently Asked Questions

What is the average profit margin for the Information sector?
The Information sector (NAICS 51) has an average net profit margin of 6.3% across 74 sub-industries, which is below the national median. This is derived from IRS Statistics of Income business tax data.
How many industries are in the Information sector?
The Information sector (NAICS 51) contains 74 distinct sub-industries classified under the North American Industry Classification System. These range from high-margin industries like Information (10.5%) to major employers like Information (1,262,348 employees).
How many people work in the Information sector?
The Information sector employs 16,400,849 workers across 803,520 business establishments nationwide, according to Census Bureau County Business Patterns 2023 data.
What are the most profitable industries in Information?
The highest-margin industries in the Information sector include Information (10.5%), Information (9.4%), Information (9.3%). These margins are calculated from IRS Statistics of Income data as net income divided by total receipts.
What is the total revenue of the Information sector?
The Information sector reports total annual receipts of $3.3T across all business entities filing federal tax returns. This covers all 74 sub-industries within NAICS sector 51, based on IRS Statistics of Income data.
Disclaimer: PlainBizBench provides publicly available IRS and Census data for informational purposes only. This is not financial, tax, or business advice. Consult a qualified accountant or financial advisor for business-specific guidance.

Related

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBizBench Editorial