Technical Expertise

Multidisciplinary teams comprising of specialists across ten industry sectors, we have the expertise necessary to grapple with challenging assignments.

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Commitment to Clients

Our business is built on relationships, and our clients will always be our top priority.

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Featured Project

Silvertown Tunnel London UK

Silvertown Tunnel
One of the largest engineering projects in the world.

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Who We Are

International Award-Winning Engineering Consultants who deliver ground breaking solutions at the forefront of industry best practice.

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Our Regions

Carbon Reduction Plan

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Our Commitment to Net Zero
Ayesa is committed to becoming a net zero engineering consultancy by 2040

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Stay Up-to-date

Stay on top of the latest developments, appointments, awards and more across all our offices.

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Featured News

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On 19th October 2023, ByrneLooby will rebrand to Ayesa

ByrneLooby will officially adopt the name of its parent company, Ayesa, a global engineering and technology services provider.

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Investing In Our People

Cultivating a culture in which individual differences and the contributions of our staff are recognised and valued.

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Our EDI Policy

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Celebrating People
Fostering a culture where you are encouraged to be yourself.

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International Presence

Multidisciplinary team comprising of specialists across Ireland, UK and the Middle East.

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Water Supply

A Clean Sustainable Water Supply

With a heritage in water that traverses over a hundred years, Ayesa has delivered strategic water supply projects in several countries around the globe.  Our proven track record has helped government agencies, municipalities, utility companies, and contractors develop and manage water supply.   Ayesa currently sits on the framework for Irish Water, the national utility provider for Ireland.  We provide detailed engineering services throughout the entire project lifecycle focusing on robust, buildable solutions that deliver projects cost-effectively and sustainably.

We provide a full range of services to support our clients challenges (ageing assets, climate change, growing population, supply and demand variance).

Our water experts consult on the following:

  • Water treatment and optimisation
  • Water transmission and distribution
  • Abstraction licensing and permitting
  • Source selection and protection
  • Storage reservoir design and planning

Our solutions address existing and future challenges such as integrating new and existing assets, demand variance, sustainability and environmental factors.  Our engineers also advise on the sustainable management of this precious natural resource, assisting clients in assessing, managing and optimising existing assets.

Notable projects include the Vartry to Callowhill pipeline that ensures water supply to 200,000 people in North Wicklow and South Dublin.  Currently, we are working on the Saggart Reservoir, a project in the capital of Dublin, which will provide 100 million litres equivalent of potable water storage or the equivalent of forty Olympic-sized swimming pools.  Our close collaboration with the national utility, Irish Water on the tender and procurement process for the Roscommon Water Treatment plant, fast-tracked construction and ensured the scheme’s removal from the remedial action list (RAL).  In Saudi Arabia, our work on the Shuquaiq Water Transmission Scheme included 8km long of large diameter welded steel pipeline, delivering the design and development of a facility which can store 170,000m3 of treated Water.

Expertise In-Depth:

• Contract administration
• Chemical processes (coagulation, flocculation, precipitation)
• Chlorine residual analysis
• Conservation and networks management
• Conveyance and networks
• Demand analysis and water balance assessment
• Disinfection systems
• Hydraulic modelling
• Network calibration and verification
• Pipeline route selection and route proving
• Pressure optimisation and pumping analysis
• Pumping station design
• Reverse osmosis
• Storage assessment and design
• Tender and contract documentation
• Transition and distribution
• Treatability assessments
• Treatment and process design
• Ultrafiltration
• Utility diversion management & NOC procedures
• Value engineering
• Water resource management & licensing
• Water source development
• Water storage
• Water treatment and quality
• Water treatment plant, abstraction source and transfer pumping station


We support your projects

Our goal is to provide you with the best services for your needs