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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Underground Space

Supporting Urban Development

Population growth, urban development and the requirement for environmental preservation have led to underground space becoming increasingly important in solving urban problems.  Ayesa has been involved in a wide range of projects in the underground space sector, providing design services to clients throughout the project cycle from initial concept design through to detailed design and construction supervision to solve critical infrastructure needs.  Our team of geotechnical engineers, structural engineers, engineering geologists and civil engineers deliver project and client requirements in areas such as tunnelling, deep shafts, temporary works, retaining walls in a variety of ground conditions throughout Ireland, the UK and the middle east.

Our team of engineers are regularly involved in challenging and complex projects working directly for developers, as well as supporting contractors with design and build services. 
In Qatar, our role included the selection of the tunnel alignment and shaft locations and the design of permanent and temporary shafts for the Lusail Expressway.  While, as part of the Elan Valley Aqueduct, we designed several TBM (tunnel boring machine) launch and work shafts including a 30m deep, 13.5m diameter permanent secant pile wall-drop shaft.

As part of the New Children’s Hospital project, in Dublin, our appointment included the detailed design of close to 1km of permanent secant pile wall for the triple-level basement. 
Through close collaboration with our clients and technical expertise and experience in this area, we provide efficient and effective design solutions.


Expertise In-Depth:

• Construction sequencing
• Earth retaining structures and excavation support systems
• Geotechnical investigation and interpretation
• Geological mapping and assessment
• Geotechnical analysis and design
• Instrumentation and monitoring
• Numerical modelling
• Shaft design
• Temporary works
• Tunnelling, micro-tunnelling and pipe-jacking


We support your projects

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