Senior Management Team

Niall Martindale is Interim Managing Director at firmus energy. With 15 years of experience working in Northern Ireland’s regulated energy industries, Niall joined firmus energy in 2015 as Director of Regulation and Pricing, where he was responsible for company compliance to supply and distribution regulatory requirements within the terms of firmus energy’s license arrangements. 

In 2021, he was appointed Interim Managing Director where he is responsible for delivering firmus energy’s business strategy in line with the company’s core values of clarity, empathy integrity, and teamwork.

A graduate of the University of Ulster, Coleraine where he studied BSc (Hons) Science with Business, Niall also holds a number of professional APICS qualifications.

Eric Cosgrove is Director of Engineering and Sustainability at firmus energy. He has over 20 years’ experience working in the natural gas industry. Eric joined firmus energy as a Town Engineer in 2005, quickly promoted to Operations and Maintenance Manager, before being appointed Director of Engineering in 2013 where he is responsible for the design, construction and operation of the company’s gas network. In 2020 his role was broadened to Director of Engineering and Sustainability to deliver on the company’s sustainability ambitions with a particular focus on introducing hydrogen and bio-methane, along with other emerging technologies, into the company’s natural gas network so it can continue to play a pivotal role in helping Northern Ireland transition towards Net Zero Carbon. Eric is also accountable for health and safety, maintenance and emergency response activities as well as management of third party contractors.

A Queens University graduate he holds a BEng (Hons) Degree in Civil Engineering achieving Chartered Engineer status in 2007. He is a member of the Institution of Gas Engineers and Managers (IGEM)

Paul Stanfield is Director of Sales, Marketing and Customer Services at firmus energy. Paul joined firmus energy in 2009 and has over 30 years’ experience in the Northern Ireland energy market. He has extensive knowledge of the industrial/commercial and domestic sectors within the Northern Ireland natural gas industry. Paul is responsible for delivering commercial growth across the company’s business and domestic channels and accountable for customer service and marketing.

Denise Curran is Finance Director of firmus energy.  Denise started her career at PricewaterhouseCoopers, before moving to Viridian where she worked at a group level and subsequently within unregulated energy businesses as the company’s Group Financial Controller. She then worked at Belfast International Airport for 10 years.

A Queens University graduate earning a BSc (Hons) Degree in Economics and holding an MSc in Finance, Denise is also a member of the Institute of Chartered Accountants.