Installatiebedrijven Zuid-Holland
| Plaats | Installatiebedrijven |
| 1 | |
| 6 | |
| 8 | |
| 1 | |
| 5 | |
| 4 | |
| 1 | |
| 3 | |
| 2 | |
| 1 | |
| 2 | |
| 7 | |
| 1 | |
| 1 | |
| 13 | |
| 5 | |
| 1 | |
| 6 | |
| 48 | |
| 2 | |
| 2 | |
| 12 | |
| 1 | |
| 3 | |
| 4 | |
| 1 | |
| 2 | |
| 7 | |
| 4 | |
| 2 | |
| 1 | |
| 1 | |
| 3 | |
| 5 | |
| 4 | |
| 2 | |
| 5 | |
| 1 | |
| 3 | |
| 1 | |
| 1 | |
| 4 | |
| 5 | |
| 3 | |
| 5 | |
| 1 | |
| 1 | |
| 4 | |
| 2 | |
| 1 | |
| 1 | |
| 2 | |
| 2 | |
| 1 | |
| 1 | |
| 3 | |
| 1 | |
| 2 | |
| 1 | |
| 6 | |
| 2 | |
| 2 | |
| 1 | |
| 1 | |
| 2 | |
| 1 | |
| 4 | |
| 1 | |
| 1 | |
| 4 | |
| 3 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 6 | |
| 1 | |
| 2 | |
| 40 | |
| 2 | |
| 2 | |
| 6 | |
| 2 | |
| 3 | |
| 1 | |
| 7 | |
| 1 | |
| 1 | |
| 5 | |
| 1 | |
| 1 | |
| 2 | |
| 2 | |
| 6 | |
| 2 | |
| 2 | |
| 1 | |
| 1 | |
| 11 | |
| 2 | |
| 1 | |
| 4 |