6 contractor companies are registered in Olesh.
They are listed by contractor number, from the Registrar of Contractors' list of 8 November 2026, and a name opens that company's page in the company register.

These are the branches the contractors of Olesh are registered in.
Here is how many registrations each classification holds in Olesh.
- א11
- א31
- ב11
- ב31
- ג13
- גיל דן חברה לבנין בע"מ
Contractor number 24403
- Building ג1
- Renovation א1
- רשף עבודות חשמל בע"מ
Contractor number 27575
- Building Electrical א3
- סופר קירור מוטי בע"מ
Contractor number 35311
- Air Conditioning ב3
- מ ב מערכות מים מתקדמות בע"מ
Contractor number 35821
- Water and Sewage Line ב1
- אלון בטיטו בע"מ
Contractor number 37813
- Building ג1
- שחר בר נדלן בע"מ
Contractor number 42794
- Building ג1
All contractor branchesAll companies in Olesh
Contractors in other towns
The list of registered contractors is the Registrar of Contractors', in the Ministry of Construction and Housing, read on 8 November 2026. Names, phones, classifications and their dates are the list's own, and only companies are shown.