Manufacture of wiring devices (PKD 27.33.Z)
This subclass includes:
- the production of busbars and electrical conductors, excluding those used in switchgear,
- the production of ground-fault circuit interrupters (GFCIs),
- the production of lamp holders,
- the production of lightning arresters and coils,
- the production of switches for electrical installation wiring (for example push switches, push-button switches, flick switches, catches),
- the production of electrical plugs or socket outlets,
- the production of boxes and enclosures for electrical installations (for example for connections, socket outlets, switches),
- the production of electrical connections and installation components,
- the production of installation fittings for poles and transmission line components,
- the production of direct-current power installation fittings made of plastics, including connection boxes, faceplates and similar components, as well as switch covers.
This subclass excludes:
- the production of ceramic insulators, classified in 23.43.Z.
Industry statistics (2025)
Number of companies
Companies
7,509
Companies (primary PKD)
195
Companies with financials
52
Business turnover
Legal structure
Legal formShare of companiesNumber of companies
- Sp. z o.o.34.4%67
- JDG28.2%55
- Sp. j.3.6%7
- S.A.3.1%6
- Sp. k.1.5%3
- Other1.5%3
- Cooperative1.0%2
Financial results
Median revenue
Ranking
Median revenue compared with other PKD codes.
Top companies by revenue
| # | Company | Legal form | Revenue | Net profit |
|---|---|---|---|---|
| 1 | sp. z o.o. | USD 292.49m | USD 12.22m | |
| 2 | S.A. | USD 87.21m | USD 12.35m | |
| 3 | S.A. | USD 85.11m | USD 4.07m | |
| 4 | S.A. | USD 38.34m | USD -627.23k | |
| 5 | sp. z o.o. | USD 26.68m | USD 2.48m | |
| 6 | sp. z o.o. + limited partnership | USD 25.07m | USD 1.88m | |
| 7 | S.A. | USD 24.19m | USD -266.81k | |
| 8 | S.A. | USD 20.06m | USD 3.26m | |
| 9 | sp. z o.o. | USD 17.06m | USD 3.07m | |
| 10 | sp. z o.o. | USD 10.56m | USD 982.75k |
Fastest-growing companies
| # | Company | Legal form | Revenue | Y/Y growth |
|---|---|---|---|---|
| 1 | sp. z o.o. | USD 292.49m | +20.8% y/y | |
| 2 | sp. z o.o. | USD 10.56m | +18.0% y/y | |
| 3 | S.A. | USD 87.21m | +11.0% y/y | |
| 4 | sp. z o.o. | USD 17.06m | +9.6% y/y | |
| 5 | sp. z o.o. | USD 5.48m | +8.8% y/y | |
| 6 | sp. z o.o. | USD 5.76m | +8.6% y/y | |
| 7 | sp. z o.o. | USD 26.68m | +7.9% y/y | |
| 8 | sp. z o.o. + limited partnership | USD 25.07m | +7.8% y/y | |
| 9 | S.A. | USD 20.06m | +4.3% y/y | |
| 10 | sp. z o.o. | USD 4.99m | +3.8% y/y |
Stock market
No companies from this industry are listed.