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/2687058/2025CONSTRUCTION OF WATER DISTRIBUTION NETWORK AND HOUSE CONNECTIONS IN IBRA WILAYAT (2) IN NORTH ASH SHARQIYAH GOVERNORATELocal Companies registered with Government Tender Board and specialized in the works mentionedRO 500/-(Plus 5% VAT)Floated19-FEB-25 00:00:0027-FEB-25 15:00:0024-MAR-25 14:30:00
2T/2686059/2025Transporting, Distributing and Uploading of 90.90M3 water from Saham or Khabourah Main Tanker Filling stations to Tanks available at Auqair Alabrien village in Saham in North BatinahLocal Companies registered with Government Tender Board and specialized in the works mentionedRO 50/-(Plus 5% VAT)Floated16-FEB-25 00:00:0025-FEB-25 15:00:0017-MAR-25 15:00:00
3T/2678058/2024Construction of Sewer System &TE Networks for Al-Amerat (A10) - Area (A11 & A6)Local Companies registered with Government Tender Board and International Companies specialized in the works mentionedRO 2500/-(Plus 5% VAT)Floated01-JAN-25 00:00:0009-JAN-25 15:00:0017-MAR-25 16:30:00
4T/2685053/2025CONSTRUCTION OF WATER NETWORK IN POCKETS IN QABIL WILAYAT / AL SHARQIAH NORTH GOVERNORATE AS PART SAMLL CAPEX PACKAGE 3 PLANSmall and Medium Enterprises (Riada Card Holder) registered with Government Tender Board and specialized in the works mentionedRO /-(Plus 5% VAT)Floated17-MAR-25 00:00:0027-MAR-25 15:00:0028-APR-25 15:00:00
5T/2690079/2025CONSTRUCTION OF WATER NETWORK IN ALLEIBAN &AL BESATEEN IN SAHAM/ AL BATINAH NORTH GOVERNORATESmall and Medium Enterprises (Riada Card Holder) registered with Government Tender Board and specialized in the works mentionedRO /-(Plus 5% VAT)Floated17-MAR-25 00:00:0027-MAR-25 15:00:0028-APR-25 15:00:00
6T/2676061/2024Solar Project at NWS AssetsLocal Companies registered with Government Tender Board and International Compnaies specialized. in the works mentionedRO 2500/-(Plus 5% VAT)Floated31-DEC-24 00:00:0030-JAN-25 15:00:0007-APR-25 16:00:00
7T/2684053/2025Consultancy Supervision Services of Construction of Water, Wastewater and Water Irrigation TE Networks in Al Amerat A10Local Companies registered with Government Tender Board and International Companies specialized in the works mentionedRO 2500/-(Plus 5% VAT)Floated19-JAN-25 00:00:0005-FEB-25 15:00:0007-APR-25 14:30:00
8T/2541957-2/2025Enhancing the SCADA Communication Systems in Muscat, Dakhliya, South Batina, North Batina & Dahirah GovernoratesOthersRO 500/-(Plus 5% VAT)Floated17-FEB-25 00:00:0027-FEB-25 15:00:0030-APR-25 16:00:00
9T/2693094/2025CONSTRUCTION OF WATER NETWORK AND HOUSE CONNECTIONS OF TWI AMUR AREA IN JALAN BANI BU HASSAN WILAYAT / AL SHARQIAH SOUTH GOVERNORATE -CAPEX PACKAGE 3Small and Medium Enterprises (Riada Card Holder) registered with Government Tender Board and specialized in the works mentionedRO /-(Plus 5% VAT)Floated16-MAR-25 00:00:0027-MAR-25 15:00:0028-APR-25 14:00:00
10T/2693093/2025WATER EXTENSION NETWORK IN IBRA WILAYAT / AL SHARQIAH NORTH GOVERNORATE AS PART SAMLL CAPEX PACKAGE 3 PLANSmall and Medium Enterprises (Riada Card Holder) registered with Government Tender Board and specialized in the works mentionedRO 0/-(Plus 5% VAT)Floated16-MAR-25 00:00:0027-MAR-25 15:00:0028-APR-25 14:00:00
11T/2693091/2025Consultancy Services for the HSE Management Support in the Capital Projects Delivery Division of Nama Water Services (OWWSC), Projects (C), Muscat, South & North SharqiyahLocal Companies Registered with Government Tender Board and International Companies Specialized in the Works MentionedRO 500/-(Plus 5% VAT)Floated17-MAR-25 00:00:0027-MAR-25 15:00:0005-MAY-25 15:00:00
12T/2693090/2025Consultancy Services for the HSE Management Support in the Capital Projects Delivery Division of Nama Water Services (OWWSC), Projects (B) Central and West ClusterLocal Companies Registered with Government Tender Board and International Companies Specialized in the Works MentionedRO 1500/-(Plus 5% VAT)Floated17-MAR-25 00:00:0027-MAR-25 15:00:0005-MAY-25 15:00:00
13T/2693089/2025Consultancy Services for the HSE Management Support in the Capital Projects Delivery Division of Nama Water Services (OWWSC), Projects (A) Muscat and Al Dhahira RegionsLocal Companies Registered with Government Tender Board and International Companies Specialized in the Works MentionedRO 1500/-(Plus 5% VAT)Floated17-MAR-25 00:00:0027-MAR-25 15:00:0005-MAY-25 15:00:00