Tenders


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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.


Tender Status

S.NoTender NumberDescriptionEligibilityTender fee(RO) Non-RefundableStatusFloated DateLast Date of PurchaseBid Submission Date More Info.
1T/2768179/2026Framework Contract for Wastewater Network Extensions and New House Connections in All GovernoratesSMEs holding valid Riyadah cards registered with the Projects, Tenders & Local Content Authority Specialized in the works mentionedRO /-(Plus 5% VAT)Floated13-APR-26 00:00:0021-APR-26 15:00:0001-JUN-26 15:00:00
2T/2768178/2026Framework Contract for New House Connections and Water Network Extensions in All GovernoratesSMEs holding valid Riyadah cards registered with the Projects, Tenders and Local Content Authority and specialized in similar worksRO /-(Plus 5% VAT)Floated13-APR-26 00:00:0021-APR-26 15:00:0001-JUN-26 15:00:00
3T/2762181/2026Supply and install new Diesel Generator for Quraiha pump station South AL BatinahLocal Companies registered with Projects, Tenders and Local Content Authority specialized in the works mentionedRO 50/-(Plus 5% VAT)Floated08-APR-26 00:00:0016-APR-26 15:00:0011-MAY-26 15:00:00
4T/2753177/2026Design, Supply, Upgrade, and Commissioning of SCADA system in Muscat Governorate for wastewater facilitiesLocal Companies registered with Government Tender Board and Companies specialized in the work mentionedRO 100/-(Plus 5% VAT)Floated09-FEB-26 00:00:0019-FEB-26 15:00:0001-JUN-26 14:30:00
5T/2777183/2026Supply and Delivery of Emergency Mobile Diesel GeneratorsLocal Companies registered with Government Tender Board and International Companies specialized in the works mentionedRO 500/-(Plus 5% VAT)Floated28-APR-26 00:00:0005-MAY-26 15:00:0025-MAY-26 14:17:26
6T/2776180/2026Call Off maintenance contract of Security System for two yearsLocal Companies registered with Government Tender Board and specialized in the works mentionedRO 50/-(Plus 5% VAT)Floated29-APR-26 00:00:0005-MAY-26 15:00:0025-MAY-26 14:30:00
7T/2776179/2026Supply and Installation of CCTV SystemLocal Companies registered with Government Tender Board and specialized in the works mentionedRO 50/-(Plus 5% VAT)Floated26-APR-26 00:00:0005-MAY-26 15:00:0025-MAY-26 14:00:00
8T/2742173-2/2026CALL-OFF CONTRACT FOR SUPPLY AND DELIVERY OF DUCTAL IRON FITTINGS (DI) FOR THREE YEARSLocal Companies registered with Government Tender Board and specialized in the works mentionedRO 250/-(Plus 5% VAT)Floated28-APR-26 00:00:0006-MAY-26 15:00:0025-MAY-26 15:03:10
9T/2775175/2026Replacement of AC pipe to 500 mm DI pipe in Barka / South AL-BatinahLocal Companies registered with Projects, Tenders and Local Content Authority specialized in the works mentionedRO 500/-(Plus 5% VAT)Floated29-APR-26 00:00:0005-MAY-26 15:00:0015-JUN-26 14:30:00
10T/2766178/2026Renewal of CC&B support contract - One yearLocal Companies Registered with Projects, Tenders and Local Content Authority Specialized in the Works MentionedRO 100/-(Plus 5% VAT)Floated06-APR-26 00:00:0011-APR-26 15:00:0001-MAY-26 00:03:54
11T/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 15:00:0021-MAY-26 15:00:00
12T/2770176/2026New Somhan Pump Station suction pipe replacement in Barka / South AL-BatinahLocal Companies registered with Projects, Tenders and Local Content Authority specialized in the works mentionedRO 250/-(Plus 5% VAT)Floated29-APR-26 00:00:0005-MAY-26 15:00:0015-JUN-26 14:30:00
13T/2742169-2/2026Design, 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)Floated05-APR-26 00:00:0016-APR-26 15:00:0015-JUN-26 14:00:00