Critical infrastructure operators headquartered in Ireland

Ryanair - Europe's Favourite Airlineryanair.com

Europe's largest airline group, offering over 3,000 daily flights to 225 airports, with a plan to carry 225m+ guests annually

ESBesb.ie

A company focused on providing secure, sustainable, and affordable electricity supplies to enhance societal, economic well-being, driven by innovation and collaboration for a brighter future

Aer Lingusaerlingus.com

National airline of Ireland operating modern fleet, connecting UK, Europe, North America via Dublin and Shannon airports with US Pre-Clearance.

DCC plcdccenergy.com

A global group providing solutions in energy, healthcare, and technology sectors through diverse businesses across 22 countries, driving long-term value creation

Beaumont Hospitalbeaumont.ie

A leading teaching hospital associated with RCSI Hospital Group, serving as a designated cancer and regional treatment center with strong academic links

PTSBptsb.ie

The company provides banking services and emphasizes privacy and security by directing customers to customer service on Facebook and Twitter

An Postanpost.com

Provides postal, communication, retail, and financial services across Ireland with a large national network and over 10,000 employees.

Zurich Insurance plczurich.com

Insurance provider with operations in Ireland and nine other European countries, part of a global network with over 55,000 employees worldwide

St James's Hospital Dublinlinkin.bio

An academic teaching hospital delivering health treatment, care, and diagnosis while prioritizing education, research, and collaboration with a focus on quality and accountability

daadaa.ie

Global airport and travel retail group managing airports in Dublin and Cork, operating airport retailing worldwide, and providing aviation consultancy services internationally

Uisce Éireann Irish Waterwater.ie

National water utility ensuring secure, safe, and sustainable water services in Ireland by delivering quality drinking water and treating wastewater responsibly

Mater Misericordiae University Hospitalmater.ie

Charitable hospital delivering specialized tertiary healthcare including heart surgery, transplants, spinal injuries, and national isolation services in North Dublin and Ireland.

Iarnród Éireann Irish Railirishrail.ie

The national railway system operator in Ireland, providing intercity, commuter, and freight services within the Republic of Ireland and to Belfast

St. Vincent's University Hospitalstvincents.ie

A leading academic teaching hospital providing acute, chronic, and emergency care across 50 medical specialties with international accreditation and pioneering patient care approaches

Central Bank of Irelandcentralbank.ie

Safeguarding monetary and financial stability, ensuring financial system benefits consumers and economy, maintaining independence and public trust.

Irish Lifeirishlife.ie

Leading Irish life, investment, and pension company offering innovative products with strong customer service and global expertise backing.

Tallaght University Hospitaltuh.ie

One of Ireland's largest acute teaching hospitals providing adult, psychiatric, and age-related healthcare, specializing in urology, dialysis, robotic surgery, and trauma services

Blackrock Healthblackrockhealth.com

Ireland's private hospital group, comprising Blackrock, Galway, Hermitage, and Limerick Clinics, providing healthcare services and medical care to patients

Cork University Hospitalwww2.hse.ie

A leading academic teaching hospital group in Ireland, offering highly specialized medical and surgical care to the local community and beyond

Three Irelandthree.ie

Leading mobile telecommunications provider in Ireland, offering connected life through products, service, and extensive 4G and 5G network coverage.

Mater Private Networkmaterprivate.ie

Advanced healthcare provider offering specialized services including Heart and Vascular, Spine, Cancer, Surgery, and Robotic-assisted Surgery, with a focus on patient-centered care and innovation

Children’s Health Ireland (CHI)childrenshealthireland.ie

A leading children's hospital in Ireland with over 280 beds and 39 specialties, offering educational opportunities, support for career development, and various employee benefits

South Eastern Health and Social Care Trustsetrust.hscni.net

Integrated health & social care Trust in Northern Ireland, serving 345,000 people Provides acute hospital, community health, and social services to improve health and reduce inequalities

Beacon Hospitalbeaconhospital.ie

A technologically advanced private hospital in South Dublin providing world-class acute care in various medical services with over 1700 healthcare professionals

Elavon Europeelavon.co.uk

A leading payments provider offering tailored solutions across Europe and the USA, with a focus on reliability, global connectivity, and customer service excellence

St Vincent's Private Hospitalsvph.ie

Ireland's largest private hospital offering a wide range of specialist medical and surgical services, including cancer care, cardiology, and various other specialties

Dublin Bus (Bus Átha Cliath)dublinbus.ie

Leading public transport provider in Ireland with a fleet of over 1000 buses operating on 125 routes, employing 3,600 people from 71 countries

ESB Networksesbnetworks.ie

A subsidiary of ESB Group in Republic of Ireland operating and maintaining electricity distribution system, facilitating competitive market, and investing in network development

EirGrid Groupeirgrid.ie

State-owned company operating and developing the national high voltage electricity grid in Ireland, managing power flow, planning for future, supplying distribution network #SteppingUp

Translinklinktr.ee

The company provides integrated public transport services in Northern Ireland, coordinating bus and rail services to promote sustainable transportation options

Firefire.com

A digital payments provider offering automation, payout solutions, and digital payment processes for businesses in Europe and the UK

FBD Insurancefbd.ie

Providing insurance services to consumers, farmers, and businesses across Ireland with a strong local presence and customer support.

Envaenva.com

A leading provider of recycling and resource recovery solutions in the UK and Ireland, specializing in hazardous and non-hazardous waste materials

Bus Éireannbuseireann.ie

A major provider of bus transportation services in Ireland, offering a wide range of inter-urban, city, commuter, school, and local bus services

Business Services Organisation (BSO)bso.hscni.net

Provider of business support functions and professional services for the Health and Social Care sector in Northern Ireland, offering career opportunities and comprehensive benefits

Fingal County Councilfingal.ie

Local government managing Fingal's urban, suburban, and rural areas, supporting economic growth, infrastructure, and community development.

BnMbnm.ie

Develops and delivers renewable energy, low carbon solutions, and sustainable industrial parks, supporting communities and green innovators for Ireland's carbon neutrality.

New Ireland Assurancenewireland.ie

Leading life and pensions company in Ireland providing insurance, investment, and retirement solutions to individuals and businesses through financial brokers and advisors

Laya healthcarelayahealthcare.ie

Leading private health insurance provider in Ireland, offering a wide range of innovative healthcare services, corporate schemes, and digital solutions for members' well-being

SSE Airtricitysseairtricity.com

A leading renewable energy provider in Ireland, specializing in wind power with a portfolio of onshore wind farms and green energy solutions for homes and businesses

The National Maternity Hospitalnmh.ie

A leading provider of maternity, gynecological, and reproductive care, offering high-quality treatment, research, education, and a supportive environment for women and families

Gas Networks Irelandgasnetworks.ie

Operate and maintain Ireland’s national gas network, supplying energy for heating, cooking, manufacturing, transport, and supporting renewable gas integration.

Virgin Media Irelandvirginmedia.ie

Leading cable and broadcast business in Ireland, providing award-winning broadband, TV, mobile, and home phone services Also, offering connectivity solutions for businesses and public sector

Mercy University Hospitalmuh.ie

Established in 1857, this organization operates a large hospital with over 300 beds and a wide range of specialties, offering inpatient, outpatient, and emergency care services

Veolia | Irelandveolia.ie

A leading environmental services company in Ireland, offering energy, waste, and water solutions to promote sustainability, circular economy, and carbon reduction

Northern Ireland Waterniwater.com

This company provides water and sewerage services in Northern Ireland, supplying clean water, treating wastewater, and maintaining a vast infrastructure system

HSE West North Westsaolta.ie

A healthcare group operating 6 hospitals across 7 sites in Ireland, with an academic partnership with NUI Galway

Galway University Hospitalssaolta.ie

Healthcare provider within Saolta University Health Care Group, offering a wide range of services to patients, specializing in cancer and cardiac care Affiliated with NUIG for training and research

Alliance Medical Irelandalliancemedical.ie

A provider of Diagnostic Imaging services with full accreditation and certification, offering various scans to patients, clinicians, and hospitals across Ireland

Bord Gáis Energybordgaisenergy.ie

Bord Gáis Energy offers innovative energy services and solutions in Ireland, focusing on benefiting and serving over 750,000 customers since 1976

National Rehabilitation hospitalnrh.ie

Specialist rehabilitation provider offering comprehensive services to adult and pediatric patients in Ireland with physical or cognitive disabilities post-accident or injury

Rotunda Hospitalrotunda.ie

A leading voluntary provider of maternity, neonatal, and gynaecology care in Ireland, delivering innovative and safe services for over 274 years

Danske Bank UKdanskebank.co.uk

A leading bank in Northern Ireland and Great Britain, part of a financial group headquartered in Copenhagen, with over 200 years of experience

Blackrock Health Blackrock Clinicblackrock-clinic.ie

Ireland's top high-tech hospital within Blackrock Health, specializing in cutting-edge healthcare development and delivery

Energiaenergia.ie

A leading supplier of renewable energy in Ireland, specializing in green electricity, bio-energy, energy storage, solar, offshore wind farms, and sustainability

Mowlam Healthcare Servicesmowlamhealthcare.com

A leading national healthcare provider in Ireland, dedicated to clinical excellence and compassion, specializing in nursing home care for older individuals

CityJetcityjet.com

Europe's leading regional airline based in Dublin, Ireland, specializing in wet lease and charter services with a modern fleet of Bombardier aircraft

AXA Irelandaxa.ie

A leading insurance company in Ireland offering a wide range of insurance products to protect homes, cars, businesses, and farms Part of AXA Group

Dublin Airportlinktr.ee

A major international airport located in Dublin, Ireland, serving as the primary entry point for millions of passengers annually Part of the daa Group

Glanuaglanua.com

A leader in engineering solutions for water infrastructure, specializing in innovative designs, global technologies, and maintenance of treatment facilities nationwide

Irish Blood Transfusion Servicegiveblood.ie

This organization supplies blood and blood products to hospitals in Ireland, while also encouraging individuals to become blood donors Visit their website for more information

SAS Connectflysas.com

ACMI carrier based in London and Malaga, providing reliable air travel using new A320neo aircraft to make life easier for Scandinavia's frequent travelers

Allianz Irelandallianz.ie

Providing diverse insurance products including car, home, pet, SME, and commercial insurance to over 500,000 customers across Ireland.

Greenstarpanda.ie

Leading Irish recycling provider with 40 sites and 520+ employees specializing in waste management solutions for industry and domestic customers Setting industry standards

Top Oil - Fueling Irelandtop.ie

Family-owned Irish company in oil industry for over 200 years Delivers quality fuel products nationwide, with retail service stations and home heating oil depots

Amarencoamarencogroup.com

Amarenco is a top renewable energy producer in Europe, specializing in large and medium-scale solar projects, working with farmers, communities, and industries

Transdev Irelandtransdevireland.ie

A leading public transport operator in Europe, providing high quality local transport services including tram, metro, train, bus, and coach networks

RSA Insurance Irelandrsagroup.ie

Provides home, motor, and commercial insurance products through brokers and partners, including a leading personal insurance platform in Ireland.

NBC Global Finance Limited – Dublinnbcgf.ie

A European subsidiary of a Canadian bank, facilitating growth, diversification, and financial services in Europe for the parent company and its subsidiaries

Allianz Global Lifeallianzgloballife.com

A European market leader offering innovative protection and insurance investment solutions, focusing on customer centricity, digital excellence, and technical innovation for growth

Greenval Insurance DACgreenval-insurance.com

An Irish insurance company specializing in fleet motor insurance, operating in multiple EU countries, offering liability and damage cover for Arval Group's fleet business

BBPM Life dacbbpmlife.com

An Irish company provides Class III life insurance products across the EU under the freedom of services regime, tailored to customer needs

Applegreen Fast Chargeapplegreenfastcharge.com

A fast-paced startup focusing on EV charging for long-range travel, driving innovation in the electric vehicle industry

North Midlands Credit Unionnorthmidlandscu.ie

A community-based financial co-operative providing competitive rates and loans to members across six branches, focused on delivering outstanding financial services

Irish Continental Group PLCicg.ie

Leading maritime transport group in Ireland transporting passengers, cars, roll-on roll-off freight, and container lift-on lift-off freight between Ireland, UK, and Continental Europe Operates container terminals in Dublin and Belfast

Irish Ferries Freightirishferriesfreight.com

Leading ferry operator connecting Republic of Ireland, Britain, and France, offering RoRo services for passengers, vehicles, freight, inclusive holidays, with a modern fleet and high-quality travel experiences

ActionPoint Technology Groupviatel.com

A digital services powerhouse providing fully managed security, networking, cloud, and communications services to drive enterprise growth with global impact

CUSOP (Payments) DACcusop.ie

An independent company in Ireland providing electronic payment services for credit unions, offering cost-efficient transactions and developing innovative products for members

Greencoat Renewables PLCgreencoat-renewables.com

Invests in euro-denominated renewable energy infrastructure assets, focusing on large secondary markets in continental Europe to aggregate operating generation assets.

EVO Payments Irelandevopayments.co.uk

The company specializes in payment processing services, offering international solutions for debit and credit card acceptance, transaction processing, and innovative payment solutions