Technical Expertise

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

View all sectors


Commitment to Clients

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

View all Projects

Featured Project

Silvertown Tunnel London UK

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

learn more

Who We Are

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

learn more

Our Regions

Carbon Reduction Plan

About - office locations image

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

learn more

Stay Up-to-date

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

View all News

Featured News

MicrosoftTeams-image (76)

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.

Learn more

Investing In Our People

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

meet our people

Our EDI Policy

Careers - Image

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

learn more

International Presence

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

Follow us:

  • LinkedIn - blue70px
  • Twitter - blue70px
  • Facebook - blue70px
  • Instagram - blue70px
  • Vimeo - blue70px
  • Issuu - blue70px


Contact Us

We would love to hear from you. Please fill in the quick contact form below.

Send a message

M7 Widening and Sallins Bypass

M7 Widening and Sallins Bypass

Ireland’s M7 Motorway stretches 200km from coast to coast, linking Dublin to major cities in the west, M9/Waterford, M8/Cork and M7 Limerick. It is a critical transport vein, one of the most heavily used motorways in Ireland with currently 78,000 vehicles per day. To meet ever increasing traffic demands, the M7 required essential improvements and upgrades on particular sections of the motorway. An infrastructure group, Colas joined forces with leading local construction company, SIAC to form an International team consisting of National and Global expertise to deliver this large Irish road scheme, to upgrade the M7 motorway. As part of the scheme, delivery includes a new 3.7km Bypass including an interchange with the M7. A third lane of traffic will stretch 13.5 km long in both directions with five new bridges. The completion of the overall project is expected in April 2020.

M7 Widening and Sallins Bypass

Our Role

Our geotechnical engineers at Ayesa in Dublin acted as the geotechnical temporary works designers to the main contractor. Ayesa were responsible for the geosynthetic reinforced and un-reinforced temporary working platforms designs, which had to allow for the operation of the heavy construction plant including bored piling rigs and 600t crawler cranes. Works also included replacing and relocating the existing ramps at Junction 10, Naas South to the main Naas Newbridge dual carriageway. A new interchange construction at Osberstown, between Junctions 9 and 10 which will be a new designated Junction 9a. Ayesa provided bridge abutment designs for five temporary bailey access bridges and slope stability assessments for working platforms adjacent to all river banks.

Our Role

We support your projects

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