Census Statistics of US Businesses
Annual data on the number of businesses, employment, and annual payroll by firm size (employee count brackets) and industry. Published by the US Census Bureau and covers all employer firms in the US. Definitive source for sizing the LMM universe — shows exactly how many businesses fall in the 20–499 employee range that approximates $1M–$100M revenue.
Latest snapshot
Rows in latest snapshot
18
Last refreshed
May 19, 2026
Cadence
annual
Coverage
1992–2021 (latest); national, state, MSA; by 6-digit NAICS and firm size
Total records
~6M employer firms per year, aggregated by size × NAICS × geography
Key fields
-
ENTSIZEGROUP -
ENTSIZEGROUP_LABEL -
NAICS2017 -
NAICS2017_LABEL -
FIRMPDEMP -
ESTABPDEMP -
RCPPDEMP -
EMPSZFI -
EMPSZFI_LABEL
Use cases
- How many businesses in [industry] with 20–499 employees (LMM proxy)
- Total employment and payroll in mid-market firms by sector
- Market sizing: TAM of LMM targets in specific industries
- Geographic distribution of LMM businesses (state / MSA level)
- Payroll per employee by firm size — labor cost benchmark
Full table, history & downloads
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