Het hoofdstuk Elektronische installaties betreft het geheel van leveranties en werkzaamheden nodig voor het in het werk brengen en bedrijfsgereed maken van installaties voor de opwekking, omzetting, distributie en afname van elektrische energie alsmede gemeenschappelijke leidingwegen, aardings- en bliksembeveiligingsvoorzieningen.
| Naam | Specialisatie | Plaats |
|---|---|---|
| Willems Klimaat- & Koudetechniek | 55.00 60.00 68.00 75.00 61.00 70.00 43.22 43.21 46.69 62.51 62.00 | Beek |
| Willems Technisch Adviesburo | 55.00 60.00 61.00 62.00 68.00 70.00 75.00 55.00 60.00 61.00 62.00 70.00 | Duiven |
| Willemsen Installatie B.V. | 50.00 51.00 52.00 53.00 54.00 70.00 75.00 78.00 55.00 56.00 57.00 60.00 61.00 62.00 68.00 54.a 55.00 60.00 61.00 62.00 70.00 43.21 43.22 | Heino |
| WILLY MACKENS BVBA | 70.00 70.00 65.50 60.10 60.50 61.10 62.10 63.20 65.10 65.20 68.00 77.10 77.20 77.30 77.40 77.50 43.29 6 T6.61 6 T6.62 6 T6.63 6 T6.65 | TERNAT |
| Wilstra Elektrotechniek | 70.00 70.52 70.87 43.21 | Nieuwe-Tonge |
| Wiltink Installatietechniek B.V. | 60.00 61.00 70.00 53.00 52.00 51.00 60.00 61.00 70.00 43.21 60.51 43.22 | Vorden |
| Wiltink Koudetechniek B.V. | 61.00 62.00 70.33 | Nijmegen |
| Wim Boelens Installatie-Techniek | 50.00 51.00 52.00 53.00 54.00 70.00 75.00 70.00 43.22 60.51 43.21 | Annen |
| WIM DUBOIS BVBA | 70.00 70.00 43.21 | HOUTHULST |
| WindManShip GmbH ( WMS ) | 70.61 70.62 IB | Hamburg |
| WindSun | 70.33 | Alkmaar |
| Winkelman Installateurs B.V. | 61.00 50.00 51.00 52.00 60.00 70.00 60.00 61.00 70.00 43.22 60.51 43.91 | Doetinchem |
| Winkels Techniek B.V. | 70.00 75.00 78.00 50 54.00 57.00 60.00 55.00 53.00 52.00 51.00 50.00 61.00 68.00 62.00 00.AI 47.51 47.31.a 61.12 60.12 56.00 55.00 60.00 61.00 62.00 70.00 43.21 60.51 | Enschede |
| Winkels Techniek B.V. Raalte | 70.00 | Raalte |
| WinLed Lighting Solutions | 70.81 | Winterswijk Woold |
| Winspiration Elektrotechniek BV | 70.00 75.00 61.00 54.00 61.00 70.00 61 61.1 61.11 61.10 61.2 61.20 61.21 61.25 61.26 61.3 61.30 61.32 61.33 61.5 61.50 61.51 61.6 61.60 61.61 61.7 61.70 61.71 62 62.2 62.20 62.21 62.3 62.30 62.31 63 63.1 63.10 63.11 63.13 63.14 63.2 63.20 63.23 63.24 63.3 63.30 63.31 63.33 63.34 63.4 63.40 63.41 63.43 63.44 63.5 63.50 63.51 63.53 63.54 63.6 63.60 63.61 63.63 63.64 64 64.1 64.10 64.11 64.12 64.13 64.14 64.2 64.20 64.21 64.22 64.24 64.3 64.30 64.31 64.4 64.40 64.41 65 65.1 65.10 65.11 65.12 43.21 | Ridderkerk |
| Winters M. Electriciteit | 70.00 70.00 77.10 77.20 77.30 77.40 77.50 70.50 74.00 | Pelt |
| Winterwarm Heating Solutions B.V. | 70.81 60.00 75.45 058 72.10 63 63.2 63.20 70.82 63.1 63.10 63.11 63.12 63.13 63.14 63.24 63.3 63.30 63.31 63.4 63.40 63.41 63.5 63.50 63.51 63.6 63.61 63.60 72.50 059 61.42 75.52 | Winterswijk Woold |
| Wisman Techniek | 70.65 | Ruurlo |
| WIT (Wolf Installatie Techniek) B.V. | 70.00 75.00 78.00 70.00 | Staphorst |
| Withagen Techniek B.V. | 25.32 25.32.a 25.33 43.b 70.00 | Halsteren |
| Witte Installatie B.V. | 55.00 60.00 61.00 62.00 68.00 70.00 50.00 51.00 52.00 53.00 55.00 60.00 61.00 62.00 70.00 43.22 | Ursem |
| Witte Koeltechniek B.V. | 70.00 62.00 62.00 70.00 43.21 | Noord-Scharwoude |
| WIVO ELEKTRO BVBA | 70.00 70.00 43.21 70.00 | ANTWERPEN |
| WKX B.V. | 70.33 | Hardinxveld-Giessendam |