Sector

Construction

Special-trade and building contractors — modeled once, in one language.

One vocabulary across construction.

Businesses in construction are addressed by their NAICS and SIC codes rather than by an invented label, so a model written for one of them resolves against the same classification everywhere it is reused.

Classification codes

Codes are metadata, not the URL — one topic, one page.

NAICS

23

SIC

15
16
17

Industries in this sector

Each with its exact classification codes.

Plumbing contractors

NAICS 238220 · SIC 1711

HVAC contractors

NAICS 238220 · SIC 1711

Electrical contractors

NAICS 238210 · SIC 1731

Masonry contractors

NAICS 238140 · SIC 1741

Concrete contractors

NAICS 238110 · SIC 1771

Carpentry contractors

NAICS 238350 · SIC 1751

Painting contractors

NAICS 238320 · SIC 1721

Drywall contractors

NAICS 238310 · SIC 1742

Flooring contractors

NAICS 238330 · SIC 1752

Roofing contractors

NAICS 238160 · SIC 1761

Glass and glazing contractors

NAICS 238150 · SIC 1793

Excavation contractors

NAICS 238910 · SIC 1794

12

industries mapped

23

NAICS sector

3

SIC divisions

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