Senior Management Team

Michael started his career in British Gas – North Thames. He worked for over ten years within the Northern Ireland natural gas industry, before taking up a post with firmus energy in January 2006.

Since joining firmus energy, Michael has been responsible for business regulation, transportation services, gas purchasing, customer operations and systems development. He was recently charged with managing firmus energy’s entry into the Greater Belfast natural gas supply market before taking up the role of Managing Director for firmus energy in April 2012.

Eric Cosgrove has 14 years’ experience in the natural gas industry, joining firmus energy in 2005 as a Town Engineer progressing to the role of Operations and Maintenance Manager, before being appointed to Head of Engineering. 

Eric qualified from Queens University with a BEng (Hons) Degree in Civil Engineering before achieving Chartered Engineer status in 2007. He is also a Member of the Institution of Gas Engineers & Managers (IGEM)

Niall Martindale joined firmus energy in 2015 and has more than eight years’ experience working in Northern Ireland’s regulated energy industries. Niall is responsible for ensuring the company’s compliance to supply and distribution regulatory requirements within the terms of firmus energy’s licences.

Niall graduated from University of Ulster, Coleraine with a BSc (Hons) Science with Business and has also gained professional APICS qualifications throughout his career.

Paul joined firmus energy in 2009 and has almost 30 years experience in the Northern Ireland energy market. He has an extensive knowledge of both the industrial/commercial and domestic sectors within the Northern Ireland natural gas industry.

Denise joined firmus energy in August 2019. She has over 20 years experience working in finance. Denise started her career in PricewaterhouseCoopers before moving to Viridian where she worked at a group level and subsequently within its unregulated energy businesses as Group Financial Controller. She then worked at Belfast International Airport for 10 years.

Denise qualified from Queens University with a BSc (Hons) Degree in Economics and a MSc in Finance. She joined the Institute of Chartered Accountants in 2001.