With the acquisition of Ceywater Consultant in 2014, Arinma Holdings has now consolidated its prominent position in project design, planning, management and implementation capabilities. The power of combined expertise of Arinma and Ceywater is capable of undertaking large multifaceted advisory and consultancy projects across local and international infrastructure arenas.

Established in 1981, Ceywater is Sri Lanka’s oldest and leading player in engineering consultancy services.

The company has expanded its activities in the field of engineering and taken part in many prestigious consultancy assignments funded by significant donor agencies such as ADB, JICA, WB, JBIC (OECF), USAID, AUSAID, KfW, NORAD, UNICEF, JICKWELLS. The company has undertaken works throughout the Island especially in water sector for the National Water Supply & Drainage Board and Urban Local Authorities (ULAs) and in Urban Infrastructure Development and Capacity Building for the ULAs through Ministry of Housing & Estate Infrastructure, Urban Development Authority and Board of Investment in Sri Lanka

The firm is specialized in feasibility study; planning, designing, project and contract management and construction supervision in the multifaceted environmental engineering field comprising water supply (urban & rural) sanitation and sewerage, roads, storm water, drainage waste water sectors and other infrastructure facilities.

The company operates from its’ own premises located in the outskirts of Colombo with more than 100 professionals and support personnel at Head Office and Project Implementation Unit offices scattered in a number of districts in the island. There are twenty Engineers permanently attached to the firm. All have extensive experience in support of Ceywater activities. Several other Professionals of various disciplines such as Urban Planners, Quantity Surveyors, Dams & Irrigation Engineers, Hydrologists, Geologists, Economic/Financial Analysts, Trainers, Community Development Specialists, Sociologists, Benefit Monitoring and Evaluation Specialists, Environmental Specialists, Procurement Specialists, Lawyers, Institutional Development Specialists, Municipal Administration Specialists, Land Management Specialists, Software Developers, Mapping Experts and other Specialists of every conceivable discipline are available to provide any kind of consultancy services to a discerning Client.



  • Non-Revenue Water Engineering Study, Master Plan Update & Institutional Development (JICA).
  • ADB Assisted Urban Development Sector Project (UDSP).
  • Rehabilitation of Water Supply Schemes in Ampara, Nawalapitiya and Koggala Sewerage Scheme in association with GKW of Germany.
  • ADB assisted Third Water Supply & Sanitation Sector Project “Package C".
  • ADB assisted Third Water Supply & Sanitation Sector Project “Package A".
  • Greater Galle Water Supply Project.
  • Technical Assistance Programme (PPTA) for the Urban Development & Low Income Housing Project.
  • Project for improvement to water supply systems in Galle and Matara Districts (JETRO).
  • Feasibility Study for Improvements to Water Supply System in Greater Galle for JICWELSI National Water Supply and Drainage Board.
  • Beira Lake Sewerage Project - Phase I (World Bank).
  • Contract Management for the Water Supply Sector Project covering Central Region of Sri Lanka (ADB).
  • Greater Colombo Waste Water Management Review in association with Nippon Koei Co. Ltd., Japan.
  • Technical assistance and Preparation Support for the Proposed Second Community Water Supply & Sanitation Project in association with Coffey MPW Pty Ltd, Australia.
  • Baseline Survey on Facilities of Agrarian Services Centers (ASCs) & Farmer Training Centers (FTCs) in the North & Eastern Province.
  • Detailed Design study on the Project for Reduction of Non-Revenue Water in the Greater Colombo Area (JICA).
  • Towns North of Colombo Water Supply Project in association with Nihon Suido Consultants, Japan funded by OECF.
  • Design and Construction Supervision of the Rehabilitation of Tsunami Damaged Irrigation & Drainage works in the Galle District funded by World Vision Lanka.
  • Designs, Construction Supervision and Contract Administration for Supply Installation and Commissioning of new Pumps Generator & Construction of Building at Dickwella, Matara District.
  • Augmentation of Ampara, Nawalapitiya and Koggala water supply schemes and Koggala sewerage scheme.
  • Feasibility study for Improvement of Pelawatha - Kankotayawatte - Thiniyawala – Morawaka Road (0-24 km) and Ambalangoda - Elpitiya - Pitigala Road (16- 29 Km) for RDA.
  • Detail Design for Improvements to Package 2 Pelawatha - Kankotayawatte - Thiniyawala - Morawaka Road (0-24 km) and Ambalangoda - Elpitiya - Pitigala Road (16- 29 Km) for RDA.
  • Augmentation of Kiridi Oya Water Supply Project.
  • Kandy City Wastewater Disposal Project - Consultancy Services for Detailed Basic Design & Consultancy Supervision (JBIC) including Designs of M&E works.
  • Consultancy Services for Design, Construction and Completion (Turnkey) Project of Ampara Water Supply for Sri Lanka
  • Continuous Consultancy Services to Dialog Telecom Limited on review of Structural Design in Civil Works for Local Authority and 801 submissions and Design of Tower Foundations.
  • Anuradhapura North Integrated Water Supply Project.
  • Technical staff and logistic support to Nihon Sudio Consultants, Japan in the Capacity Development Project for Non-Revenue Water Reduction in Colombo City.
  • Consultancy Services for Feasibility, Design and Construction Supervision of Eastern Province Water Supply Development Project.
  • 35,000m3/day Ruhunupura Water Supply Project
  • Consultancy Services for Basic Engineering Design of Matara Stage IV Water Supply Project
  • Consultancy Services for Basic Engineering Design of Jaffna - Kilinochchi Water Supply Project


  • AI Amerat Waste Water Project - Preparation of Sewerage Network Designs and Pump Station in Oman for NJS Consultants, Oman.
  • Saddiat Island Infrastructure Development Project, Abu Dhabi Provision of Consultancy Services for Structural Design, Electrical Engineering and Quantity Surveying in the Development of Roads, Infrastructure and Landscaping in the Tourism Development Project by TDIC Project, Abu Dhabi.

  • Design review and Construction of 3960m2 five storey Maligakanda New Office Building for NWSDB.
  • Stage II of Towns North of Colombo Water Supply Project.
  • 5th ADB Assisted Dry Zone Urban Water and Sanitation Project - Sri Lanka - Package A.
  • Consultancy Services for Project Management and Construction Supervision of Kalu Ganga Water Supply Project (Phase I -Stage II).
  • Greater Colombo Wastewater Management Project (ADB).
  • Kandy City Wastewater Management Project (JICA).
  • Belgium funded Detail Design and Construction Supervision of Kollone and Balangoda Water Supply Project.
  • Assist NJS Japan in the Construction Supervision Works for Rehabilitation of Killinochchi Water Supply (JICA).
  • JICA funded Anuradahapura North Water Supply Project Phase