1. DCC

The DCC group provides sales, marketing, distribution and business support services and operates across five divisions: Energy, SerCom (which encompasses IT and entertainment products) Healthcare, Environmental and Food and Beverage.

2. Scottish Power Renewables

Scottish Power Renewables is part of Iberdrola, the world’s largest wind energy developer, with an operating portfolio of over 14,000 megawatts. Scottish Power Renewables is responsible for progressing a number of onshore wind and marine energy projects in the UK and I...

3. ESB

ESB is Ireland’s leading sustainable energy company, comprising power generation, networks, supply and international divisions.

4. Ervia

Ervia (formerly known as Bord Gáis Éireann (Bord Gáis)) has evolved in recent years from an energy company to a multi-utility company responsible for strategic national gas and water infrastructure and services. A commercial enterprise owned by the Irish State, it buil...

5. NORA

The National Oil Reserves Agency (NORA) was established in 1995 as a subsidiary of the Irish National Petroleum Corporation Limited (INPC). The National Oil Reserves Agency Act 2007 has established NORA as a State Agency under the aegis of the Department of Communicatio...

6. CMC

CMC distributes and markets coal products which is mined at Cerrejón, Colombia. It has an office in Dublin where it employs 31 people. Europe is the largest single market for CMC and it also sells to central and south america, the US and Asia. It is owned in equal par...

7. Morris Oil

Morris Oil distributes home heating oil, agri oil, commercial oil and industrial oil. It employs more than 30 people in the south-east, operating in Waterford, Kilkenny, Tipperary, Cork and Laois. Its headquarters are in Fiddown, Co Kilkenny. Its main customers are b...

8. Synergen

Synergen uses natural gas to generate electricity which the company sells into the Single Electricity Market (SEM). The SEM is the wholesale electricity market operating in the Republic of Ireland and Northern Ireland. Synergen is a base load plant, which means it oper...

9. Tynagh Energy

Tynagh Energy successfully tendered for a competition in December 2003, run by the Commission for Energy Regulation (CER) to design, finance, construct, operate and maintain a 400MW Combined Cycle Power Plant (CCGT) in east County Galway. Its shareholders are: GE Ene...

10. Boc Gases Ireland

BOC is the largest provider of industrial, medical and special gases in Ireland. In Ireland BOC has been producing atmospheric gases, including oxygen, nitrogen and argon for over 70 years. Its portfolio today includes thousands of different gases and mixtures, as well...

11. Valero Energy Corporation

Valero Energy Corporation, through its subsidiaries, is an international manufacturer and marketer of transportation fuels, petrochemical products and power. Valero subsidiaries employ approximately 10,000 people, and assets include 15 petroleum refineries with a combin...

12. Air Products Ireland

Air Products Ireland Ltd serves customers in industrial, energy, technology and healthcare markets worldwide with a portfolio of atmospheric gases, process and speciality gases, performance materials, and equipment and services. The wider Air Products Group has 18,90...

13. Energia

Energia is the retail arm of the Viridian Group in the deregulated Irish energy market. Energia supplies both electricity and gas to a wide range of customers (industrial and commercial) and has some 60,000 customers. It is based in Dublin and employs 30 people.

14. Cameron

Cameron Ireland manufactures valves, chokes and actuators for the petroleum completion sector of the oil and gas industry. The products it makes are used in drilling operations to regulate the flow of oil and gas both at sub-sea level and underneath the surface. It ...

15. Applegreen

Motorway service station operator Petrogas is the company behind the Applegreen service stations. Applegreen is part of a consortium that holds a public-private partnership (PPP) contract with the National Roads Authority (NRA) to build and operate six motorway service ...

16. Schneider Electric

Schneider Electric sell uninterruptible power supply products and services. This offers businesses a power supply to protect against outages. It also offers solutions to deal with the safety and efficiency of power provision. Its headquarters are in Maynooth and it empl...

17. SSE Airtricity

SSE Airtricity is in independent energy provider, supplying over half a million domestic and commercial gas, electricity and home energy services customers in the Republic of Ireland and Northern Ireland. The company is a wholly-owned division of the Top 40 FTSE listed ...

18. Diesel Card Ireland

Diesel Card Ireland Limited is part of the Nicholl Oils Group, a company that provides a full range of petroleum products, including home heating oil, retail petrol, lubricants, marine, commercial and industrial fuels, farm fuels and fuelcards. Nicholl Fuel Oils Limi...

19. Bord na Mona

Bord Na Móna is an integrated utility service provider encompassing electricity, heating, resource recovery, water, growing media and related services. It is headquartered in Newbridge, Co Kildare and employs over 2,000 people.

20. Vayu

Vayu supplies gas and electricity to businesses in Ireland, having become the first independent supplier to be awarded a gas shipping and supply license by the Commission for Energy Regulation in 2003. In November 2007, Vayu was awarded an electricity licence and st...