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

ByrneLooby acquired by global technology and engineering firm AYESA

ByrneLooby acquired by global technology and engineering firm AYESA

Acquisition represents a key milestone in AYESA’s plan to expand in major English-speaking markets globally


AYESA, a leading international technology and engineering services firm, has announced the acquisition of Irish-UK engineering consultancy ByrneLooby, for an undisclosed consideration.

Founded in 1998, ByrneLooby has expanded to become an internationally regarded engineering consultancy employing over 225 professionals in 14 offices across Ireland, the UK and the Middle East who provide expert engineering and design services covering a number of specialist sectors including marine and coastal, buildings, transportation, energy, environment, water and waste management.

AYESA, which is headquartered in Spain, is one of the world’s largest engineering firms and a leading provider of technology services such as artificial intelligence, data analytics, cybersecurity and cloud computing. The Group employs over 5,400 people in 17 countries across Europe, Latin America, Asia and the Middle East, and has a turnover of approximately €256 million.
AYESA recently announced a major investment from A&M Capital Europe (“AMCE”), aimed at enabling the business to pursue an ambitious international growth plan which includes the doubling of its turnover to €500 million over the next 5 years as well as continued geographical diversification.

The acquisition of ByrneLooby will add approximately €24 million in annual revenues to AYESA and represents a key milestone in AYESA’s plans to expand in major English-speaking markets globally including Ireland, the UK, USA, and Australia, along with the Middle East, where major national infrastructure plans are in place. National development plans totalling €165 billion have been committed to in Ireland, while the UK’s National Infrastructure Strategy will see significant capital investment over its lifetime. In the Middle East, several giga-projects underpin a $7 trillion development plan.

Commenting on the announcement, José Luis Manzanares Abásolo, CEO of AYESA, highlighted that the integration of ByrneLooby into AYESA will generate significant synergies as both firms are highly complementary.

 "ByrneLooby and AYESA are fully united in their passion for finding the best solutions to the world’s greatest engineering and technical challenges, making our businesses a perfect fit for each other. Looking forward, the robust scale of AYESA internationally and the sophisticated resources and infrastructure that underpin our business across each market will enable ByrneLooby to grow at an accelerated pace, thus realising the full potential of the ByrneLooby business and its team of industry renowned professionals."

John Byrne, Managing Director at ByrneLooby said:

"This transaction brings two highly complementary businesses together and represents a significant expansion to our service offering in ByrneLooby. We are hugely excited to join one of the world’s biggest engineering and technology firms and our aim now is to drive significant growth for AYESA across our core markets through our blended capabilities and expertise, leveraging AYESA’s market-leading reputation."

ByrneLooby’s management team will remain in place following the transaction and the business will continue to grow its wider team of professionals across Ireland, the UK and the Middle East, in line with its ambitious growth plans.



José Luis Manzanares Abásolo, chief executive of Ayesa Engineering and John Byrne, managing director of ByrneLooby. Photograph: James Crombie/INPHO




About Ayesa


Ayesa is a global provider of technology and engineering services and has 5400 employees as well as a permanent presence in 17 countries in Europe, the Americas, Africa and Asia. In 2020, the company, generated €256m in turnover. - Connect with us across our platforms: Linkedin Facebook, Twitter, Instagram


For further information


Siobhan Warfield-Beattie - ByrneLooby Senior Marketing Manager  
Tel: +353 86 8372328

Henry Rubinstein - Thinktank PR on behalf of ByrneLooby
Tel: +44 (0) 20 7831 2225

Lidia Velasco – Momentum Comunicación
Tel: +(34) 627 94 36 44

Ayesa Communications Department
Tel: +(34) 954 46 70 46

Back to all News