Tenders


× Nama Water Services RFQ Notice

×
Tender Instruction

The tender document can be purchased from Oman Water and Wastewater Services Company (Nama Water Services) e-tendering page (Supplier Login) from the date of publication of this announcement until the last date of purchase. 
The applicants shall pay the tender fee through the electronic payment gateway on the Supplier Login page. Applicants who are not registered with Oman Water and Wastewater Services Company (Nama Water Services) shall register at https://owwsc.nama.om/Business-with-Us/Vendor-Registration to obtain login credentials for the Supplier portal. 
All applicants who have paid the tender fee shall have access to the Tender Documents through Nama Water Services e-Tendering page (Supplier Login). All participating companies must submit a Bid Bond of 1% of the bid value in a sealed envelope to The Chairman of the Tender Committee no later than 2:00 PM on the bid submission date. 
The Bid Bond must be obtained from a bank registered in the Sultanate of Oman and should be addressed in favor of Nama Water Services. The bid, along with all required documents, must be uploaded through the Nama Water Services e-Tendering page no later than 2:00 PM on the date specified above. For more information, please refer to the Tender Page on our website www.owwsc.nama.om or email us at tender@owwsc.nama.om or interact in the online tender discussions.

Note to Bidders: Dear Participants, once your offer is ready, please submit your bid offer. Don't wait for the submission deadline date. 
For any questions about the tender or the submission of a bid, please interact with the online discussions or send an email to tender@owwsc.nama.om.


➤ Click here for “Strategic PPP Project for the Development and Operation of Sewage Treatment Plants”  or contact  ppp.tender@owwsc.nama.om  for more details

Tender Status

S.NoTender NumberDescriptionEligibilityTender fee(RO) Non-RefundableStatusFloated DateLast Date of PurchaseBid Submission Date More Info.
1T/2739181/2025Consultancy Services for Design and Supervision for Water Distribution Network in Al Wusta GovernorateLocal Companies registered with Projects, Tenders and Local Content Authority and International Companies specialized in the works mRO 500/-(Plus 5% VAT)Floated10-NOV-25 00:00:0020-NOV-25 15:00:0029-DEC-25 15:00:00
2T/2739180/2025Consultancy Services for Design and Supervision for Water Distribution Networks in MasirahLocal Companies registered with Projects, Tenders and Local Content Authority and International Companies specialized in the works mRO 500/-(Plus 5% VAT)Floated10-NOV-25 00:00:0020-NOV-25 15:00:0029-DEC-25 15:00:00
3T/2739179/2025Consultancy Services for Design and Supervision for Water Distribution Networks in Adam WilayatLocal Companies registered with Projects, Tenders and Local Content Authority and International Companies specialized in the works mRO 100/-(Plus 5% VAT)Floated11-NOV-25 00:00:0020-NOV-25 15:00:0029-DEC-25 15:00:00
4T/2737174/2025Design and Build for Interconnection Water System Between Al-Sharqiyah and Al-Dakhiliyah GovernoratesLocal Companies registered with Projects, Tenders and Local Content Authority in Excellent Grade and International Companies specialized in the worksRO 2500/-(Plus 5% VAT)Floated09-OCT-25 00:00:0003-NOV-25 15:00:0022-DEC-25 14:30:00
5T/2724156-2/2025Design, Supply & Installation of Grab Screen System at Central Pumping Station CPSLocal Companies registered with Government Tender Board in Excellent Grade and International Companies specialized in the works mentionedRO 50/-(Plus 5% VAT)Floated02-DEC-25 00:00:0011-DEC-25 15:00:0005-JAN-26 14:00:00
6T/2742179/2025construction of desalination plant in Al Ghubrah south in Al Jazer Wilayat at Wusta governorate as BOO contract with design capacity (200 m3/day) - from 1 July 2026 to 30 June 2036Local Companies registered with Projects, Tenders and Local Content Authority Companies specialized in the works mentionedRO 250/-(Plus 5% VAT)Floated02-DEC-25 00:00:0011-DEC-25 15:00:0012-JAN-26 14:00:00
7T/2742175/2025Consultancy Services for Design and Supervision of Al Juwaif and AlKhatwah Wastewater Network Systems and Associated STPs Systemsnies Local ,Projects with registered Local and Tenders and Authority Content Companies International works the in specialized mentionedRO 500/-(Plus 5% VAT)Floated07-DEC-25 00:00:0011-DEC-25 15:00:0019-JAN-26 15:00:00
8T/2742174/2025Design and Construction of RCC for Tanker Unloading area and Roud at Ibri STP- Paving of Access Road to the Sewage Treatment Plant in IBRILocal Companies registered with Projects, Tenders and Local Content Authority Specialized in the works mentionedRO 50/-(Plus 5% VAT)Floated02-DEC-25 00:00:0011-DEC-25 15:00:0005-JAN-26 14:00:00
9T/2742169/2025Design, Supply, Installation, and commissioning of Sludge Dewatering Control Panel at Ansab STPLocal Companies registered with Projects, Tenders and Local Content Authority Specialized in the works mentionedRO 100/-(Plus 5% VAT)Floated02-DEC-25 00:00:0011-DEC-25 15:00:0005-JAN-26 14:00:00
10T/2738182/2025Supply and delivery of ABB Direct Retrofit (DR) ACBs to replace existing units with E2.2N16/MS-NewE2N16/MS 4pW models, including all required accessories. The retrofit shall be type-tested as per IEC standards, ensure no modification to existing switchboard busbars, and allow minimal shutdown during installation.Local Companies registered with Government Tender Board and specialized in the works mentionedRO 50/-(Plus 5% VAT)Floated03-NOV-25 00:00:0013-NOV-25 15:00:0012-DEC-25 14:00:00
11T/2741171/2025Consultancy Services for Construction Supervision of Water Distribution Networks in Nizwa and Bahla WilayatsLocal Companies registered with Projects, Tenders and Local Content Authority and International Companies specialized in the works mentioned.RO 500/-(Plus 5% VAT)Floated10-DEC-25 00:00:0018-DEC-25 15:00:0019-JAN-26 15:00:00
12T/2741169/2025CALL-OFF CONTRACT FOR SUPPLY AND DELIVERY OF ULTRASONIC WATER METER DN15, DN20,DN32 & DN40 (INCLUDING CONNECTION ACCESSORIES; NUTS,BOLTS & WASHER) FOR THREE YEARSLocal Companies registered with Government Tender Board and specialized in the works mentionedRO 250/-(Plus 5% VAT)Floated02-DEC-25 00:00:0011-DEC-25 15:00:0005-JAN-26 14:00:00
13T/2738174/2025Construction of Water Distribution Network and House Connections in Saiq & Tawi Huqain in Al Kamil & Al Wafi Wilayat in South Ash Sharqiyah GovernorateLocal Companies registered with Government Tender Board and specialized in the works mentionedRO 500/-(Plus 5% VAT)Floated10-NOV-25 00:00:0020-NOV-25 15:00:0029-DEC-25 14:30:00
14T/2740166/2025Design and Build for Interconnection of Water System Between Al Dhahirah and Al Dakhiliyah GovernoratesLocal Companies registered with Government Tender Board and International Companies specialized in the works mentionedRO 2500/-(Plus 5% VAT)Floated13-NOV-25 00:00:0001-DEC-25 15:00:0012-JAN-26 14:30:00
15T/2745172/2025Consultancy Services for Design Review & Construction Supervision of Interconnection Between Al Dhahirah & Al Dakhiliyah GovernoratesLocal Companies registered with Government Tender Board in First Category and International Companies that have sufficient experience in the work mentRO 500/-(Plus 5% VAT)Floated09-DEC-25 00:00:0025-DEC-25 15:00:0002-FEB-26 14:30:00
16T/2739189/2025Consultancy Service for Supervision of Interconnection Water System Between Al-Sharqiyah and Al-DakhiliyahLocal Companies registered with Government Tender Board in First Category and International Companies that have sufficient experience in the works menRO 1500/-(Plus 5% VAT)Floated11-NOV-25 00:00:0020-NOV-25 15:00:0029-DEC-25 14:00:00
17T/2739188/2025Construction of Water Distribution Networks in Nizwa and Bahla Wilayats of the Dakhiliyah GovernorateLocal Companies registered with Projects, Tenders and Local Content Authority in Excellent Grade and International Companies specialized in the worksRO 2500/-(Plus 5% VAT)Floated13-NOV-25 00:00:0020-NOV-25 15:00:0005-JAN-26 14:00:00
18T/2745167/2025Consultancy for Advisory services to prepare PPP Tender documents for AL Batinah New STPs. (Suhar, Al Khaborah, Al Suwaiq, Al Rustaq and Barka)Local Companies registered with Projects, Tenders and Local Content Authority and International Companies specialized in the works mentionedRO 500/-(Plus 5% VAT)Floated09-DEC-25 00:00:0025-DEC-25 15:00:0009-FEB-26 14:30:00