Karl Zimmerer

Group Managing Director

Karl Zimmerer has over 25 years of experience in the design, construction and operation and maintenance of water and wastewater infrastructure throughout Ireland, with over 15 years in a Senior Management position. Karl’s professional qualifications include an Honours Degree in Structural Engineering and a Master Degree in Project Management.

Karl is a founding member of Glanagua Ltd and has successfully developed the business into one of the leading companies in the water services sector in Ireland providing a full range of services throughout the Industry.

Brendan Rouse

Operations Director – Industrial

Brendan Rouse is Operations Director of Industrial and has over 20 years’ experience in both the municipal and industrial water & wastewater sectors. With the team since 2014, Brendan provides valued consulting, support and leadership to our industrial team and client base.

Brendan is responsible for the strategic development and management of our industrial business including project delivery, manufacturing and R&D.

Paul Gardner

Group Development Director

Paul has over 15 years’ experience in the construction industry across multiple sectors (including mining and utilities) and has gained significant international exposure throughout his career in Ireland, Australia and the UK. His professional qualifications include an Honours Degree in Mechanical Engineering, Chartered Engineer (Engineers Ireland) and he holds an MBA from UCD Michael Smurfit Business School.

Paul is a founding director of the UK business, having joined the business in 2015 to spearhead the expansion of Glanua into the UK Market and was Managing Director of the UK Business until 2022, when he took up his current Group role focussing on furthering our ambitions across sectors and all regions. He is also a Statutory Director of the UK Business.

Andrew Young

Director of Operations UK and Ireland

Andrew joined Glanua (formally Glan Agua) in 2009 and since then has held various Engineering and Management positions before becoming Operations Director for Ireland in the Municipal Sector in 2022. He is a Chartered Engineer and holds a B.Eng. Hons in Civil Engineering & B.Eng. in Civil & Water Engineering. With over 14 years’ of experience working in the municipal sector, Andrew has worked on various large scale water & wastewater infrastructure projects and programmes.

As Operations Director for Glanua, Andrew’s key focus is to provide sustainable, robust and reliable solutions for our clients and deliver project objectives within programme, budget and to the highest Health, Safety, Quality and Environmental standards.

Andrew has extensive experience in his field and has delivered MEICA / Process design and contract management for numerous projects, including the award-winning Kerry Central Water Treatment Plant.

John Fox

Contracts Director

John holds a Ph. D. in Environmental Microbiology from NUI Galway. He has 15 years of experience in the water and wastewater sector. John has specific experience in the design, construction, commission, and operation of key water & wastewater infrastructure projects for Glanua.

John previously managed all Operations & Maintenance Contracts in Ireland including water and wastewater, the largest of these facilities is the Kerry Central Regional Water Supply Scheme which serves a population equivalent of 62,000 people, and has the capacity to supply 51,000 m3 of treated water per day.

Aine Healy

HSQE and Sustainability Director

Aine Healy first joined the Glanua team in 2011 and has progressed to HSQE and Sustainability Director for the Group. She has over 18 years’ experience managing the HSQE on large infrastructure projects and has extensive experience working in the Design, Build and Operation sectors in the water and wastewater industry. She is also an elected member of the National Irish Safety Organisation (NISO) National Executive.

With over 15 years’ experience in management systems, she has the expertise to manage and tailor the Health, Safety, Quality, Environmental and Sustainability Management Systems to ensure alignment with the current construction climate. Aine is extremely committed to increasing sustainable construction, innovation and efficiency across the business. Aine leads by example and constantly aims to increase our HSQES performance and achievements within the BHSL Group.

Ciaran O’Byrne

Group Human Resources Director

Ciarán O’ Byrne is our Group Human Resources Director and leads the execution of the company’s people strategy with a focus on career development, recruitment, and employee engagement. Ciaran has extensive HR experience having worked with international companies such as Cadbury’s, AB Mauri, Bristol Myers Squibb, SK Biotek, Merck Millipore, and more recently Aryzta Food Solutions.

Enda Flynn 

Finance Director

Enda Flynn assumed the role of Finance Director at Glanua in 2022. Enda is committed to implementing financial strategies that support the expansion of Glanua as it continues to thrive in the water and wastewater sector. Prior to joining Glanua, Enda accumulated a wealth of experience through his work with reputable organisations across UK and Ireland such as Chanelle Pharma, Kent Pharmaceuticals, Fannin Ltd, Tesco, and PWC. Enda is a graduate of the University of Galway, Ireland, and holds an MBA from Trinity College Dublin.

Keith Hayward

Managing Director, Industrial Division

Keith Hayward is the Managing Director of Glanua’s Industrial Division, where he leads the strategic growth and operational delivery of water and wastewater engineering solutions to industrial clients across Ireland and the UK. With over 25 years of experience in the environmental engineering and water technology sectors, Keith brings a deep understanding of industrial markets, innovation, and customer-focused delivery.

Before joining Glanua, Keith held senior leadership roles at several prominent organisations including Evoqua Water Technologies, Ingersoll Rand, Hydro International (UK), Paques Holdings, Bord na Móna, and Kingspan. Throughout his career, he has consistently driven transformational growth, successfully developing and delivering high-performing solutions for a broad portfolio of industrial clients.

He holds qualifications in mechanical engineering and business management, and is known for building high-performing teams and long-term client relationships.

Phil Muir

Municipal Operations Director (UK)

Phil Muir joined Glanua in October 2023 and brings a wealth of experience and expertise to his role as Municipal Operations Director (UK) with a career spanning multiple senior positions in the water industry.

Prior to joining us, Phil held the position of Director of Projects and Programme at Jacobs and worked as Delivery Manager on the Thames Tideway Tunnel, a 25km ‘Super Sewer’ under the river Thames. Phil has also worked with leading organisations, MWH, Laing O’Rourke, and Ch2MHill.

Phil will lead our municipal operations in the UK providing support to our esteemed clients, Thames Water, Yorkshire Water and Affinity Water. Phil will oversee and execute critical projects such as Blackburn Meadows, Thames Water WAAP, Greenwich and Crossness that are central to the continued growth of Glanua with the UK.

Robert Kearney

Operations Director, Ireland

Robert Kearney is a highly experienced engineering professional with over a decade of expertise in the delivery of critical water infrastructure projects across Ireland. A graduate of University College Cork and University College Dublin, Robert began his career in environmental and water sciences, developing a particular passion for water treatment, hydrology, and sustainability.

He joined Glanua in 2015 during a period of rapid company growth and played a pivotal role in delivering the €25 million National Disinfection Programme for Uisce Éireann. Progressing quickly from Project Engineer to Project Manager, he led the upgrade of over 200 water treatment plants nationwide, overseeing a multidisciplinary team and ensuring compliance with EU drinking water standards.

Robert was instrumental in the early adoption of the Early Contractor Involvement (ECI) model, championing innovation, including the adoption of Design for Manufacture and Assembly (DFMA) in water infrastructure delivery.

Robert holds a Diploma in Project Management, is PSDP and PSCS certified, and has completed the CIF IOSH Safety for Construction Managers Programme. He is currently preparing to undertake an MBA to further strengthen his business and leadership skills within the construction sector.