UK SIC 2007 code in Section C: Manufacturing

23140 Manufacture of glass fibres

SIC 23140 is the UK code for manufacture of glass fibres. Companies House accepts it when you register a company or file a confirmation statement.

Code
23140 (UK SIC 2007, Companies House list)
Section
Section C: Manufacturing
Division
23 Manufacture of other non-metallic mineral products
SIC 2026
23.14 Manufacture of glass fibres (1:1)
Closest US NAICS
327211, 327212, 327213, 327215

Activities ONS lists under 23140

The ONS index assigns these 18 activities to this code. If one describes your company, this is the code to use.

Source: ONS UK SIC 2007 alphabetical index.

What changes in SIC 2026

ONS published UK SIC 2026 in 2026. Its correspondence table maps this code's class (23.14) to:

SIC 2026 codeHeadingLink type
23.14Manufacture of glass fibres1:1

"1:1" means the class carries over unchanged in scope; other link types mean it was split or merged. Companies House still uses SIC 2007, so keep filing with 23140 until it announces a switch.

Source: ONS correspondence table, SIC 2007 to SIC 2026.

Closest US NAICS codes

Matched through the shared international class (ISIC Rev. 4). Treat these as a starting point and read the definition before using one.

Similar codes to compare

Data last changed November 14, 2026. Source: Companies House condensed SIC list. How this page is built.