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
ByrneLooby 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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Ayesa, a global engineering and technology services provider, ranked 44 out of 225 International Engineering Design Firms, and Top 10 in Latin America (ENR 2023)  Ayesa has 12,000+ staff members based in 23 countries around the globe.  At Ayesa UK, Ireland and Middle East, our engineering work covers numerous fields with a market-leading reputation in infrastructure, geotechnics, water, marine and coastal, flooding, transportation, environmental, energy, and waste management.  We are a transportation leader, delivering major rail, high-speed and metro projects worldwide.  We are a people-first consultancy, where people are our greatest asset. Our knowledge and technical expertise are applied to solve clients' problems, delivering practical solutions to complex problems to help reduce costs and make a lasting positive impact.

Our Sectors

Our experience and multidisciplinary collaboration provides innovative, and sustainable solutions for our clients


Be the change you wish to see.

Connect with some of the best talents in the industry and work on high-profile projects that make a difference to communities and people. Gain experience across a broad range of disciplines. Your wellbeing and work-life balance are important and your professional development is a priority. Join the Ayesa UK, Ireland, and Middle East family!


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We are a leading engineering, infrastructure and environment consultancy in the UK, Ireland and Middle East.