Compabase

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
7,508
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

#CompanyLegal formRevenueNet profit
1
Phoenix Contact Wielkopolska
sp. z o.o.USD 292.49mUSD 12.22m
2
Schneider Electric Elda
Schneider Electric Elda
S.A.USD 85.11mUSD 4.07m
3
PLP Poland (Belos)
PLP Poland (Belos)
S.A.USD 38.34mUSD -627.23k
4
Zakład Aparatury Elektrycznej Ergom
sp. z o.o.USD 26.68mUSD 2.48m
5
ERKO
sp. z o.o. + limited partnershipUSD 25.07mUSD 1.88m
6
Z.S.E. Ospel
Z.S.E. Ospel
S.A.USD 24.19mUSD -266.81k
7
Przedsiębiorstwo Simet
Przedsiębiorstwo Simet
S.A.USD 20.06mUSD 3.26m
8
Nexans Power Accessories Poland
sp. z o.o.USD 17.06mUSD 3.07m
9
Karlik Elektrotechnik
sp. z o.o.USD 10.56mUSD 982.75k
10
Kubiak System
sp. z o.o.USD 5.76mUSD 752.14k
View more

Fastest-growing companies

#CompanyLegal formRevenueY/Y growth
1
Phoenix Contact Wielkopolska
sp. z o.o.USD 292.49m+20.8% y/y
2
Karlik Elektrotechnik
sp. z o.o.USD 10.56m+18.0% y/y
3
Nexans Power Accessories Poland
sp. z o.o.USD 17.06m+9.6% y/y
4
Stego Polska
sp. z o.o.USD 5.48m+8.8% y/y
5
Kubiak System
sp. z o.o.USD 5.76m+8.6% y/y
6
Zakład Aparatury Elektrycznej Ergom
sp. z o.o.USD 26.68m+7.9% y/y
7
ERKO
sp. z o.o. + limited partnershipUSD 25.07m+7.8% y/y
8
Przedsiębiorstwo Simet
Przedsiębiorstwo Simet
S.A.USD 20.06m+4.3% y/y
9
Abex
sp. z o.o.USD 4.99m+3.8% y/y
10
AKS Elektro
sp. z o.o.USD 5.20m+2.2% y/y

Stock market

No companies from this industry are listed.

Related PKD codes in division 27

27.11.ZManufacture of electric motors, generators and transformers5,152
27.12.ZManufacture of electricity distribution and control apparatus11,886
27.20.ZManufacture of batteries and accumulators2,979
27.31.ZManufacture of fibre optic cables2,606
27.32.ZManufacture of other electronic and electric wires and cables4,861

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