NAICS Code 327410 — Lime Manufacturing

National Industry in the official 2022 North American Industry Classification System (U.S. Census Bureau). It is the only national industry under 32741 (Lime Manufacturing).

Code	327410
Title	Lime Manufacturing
Level	National Industry (6-digit)
Edition	NAICS 2022 edition
SBA size standard	1,050 employees

Official definition (2022 NAICS)

This industry comprises establishments primarily engaged in manufacturing lime from calcitic limestone, dolomitic limestone, or other calcareous materials, such as coral, chalk, and shells. Lime manufacturing establishments may mine, quarry, collect, or purchase the sources of calcium carbonate.

Cross-References.

Is a business under 327410 "small"?

Under the SBA size standards (13 CFR 121.201, effective March 17, 2023), a business classified in NAICS 327410 qualifies as a small business if it does not exceed 1,050 employees. Small-business status determines eligibility for federal set-aside contracts, SAM.gov certifications and SBA loan programs — employee count is averaged over the latest 24 months.

Where 327410 sits in the hierarchy

Level	Code	Title
Sector	31-33	Manufacturing
Subsector	327	Nonmetallic Mineral Product Manufacturing
Industry Group	3274	Lime and Gypsum Product Manufacturing
NAICS Industry	32741	Lime Manufacturing
National Industry	327410	Lime Manufacturing

Related SIC codes

Via the official U.S. Census concordance (1987 SIC ↔ NAICS), shown only where the industry definition is unchanged in NAICS 2022.

SIC code	Title
3274	Lime

Data: official 2022 NAICS structure, descriptions and Census concordances, U.S. Census Bureau — U.S. government works in the public domain (17 U.S.C. §105). Suggested reference, not an official determination.