Conor O’Donovan

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Conor O’Donovan is the Managing Director of IWM. He has over 20 years’ experience in the water treatment industry and joined IWM in 2005. He went on to set up the company’s water hygiene division – which focuses primarily on legionella control in healthcare facilities – and was appointed as a director in 2011.

Since then he has consolidated the work of his father Barry – who established the business in 1974 – and has focused on steadily growing the business year-on-year for the past decade. Under his stewardship IWM have built a very strong and loyal customer base in both the public and private sectors.

Profile photo for Conor O’Donovan

Conor O’Donovan is the Managing Director of IWM. He has over 20 years’ experience in the water treatment industry and joined IWM in 2005. He went on to set up the company’s water hygiene division – which focuses primarily on legionella control in healthcare facilities – and was appointed as a director in 2011.

Since then he has consolidated the work of his father Barry – who established the business in 1974 – and has focused on steadily growing the business year-on-year for the past decade. Under his stewardship IWM have built a very strong and loyal customer base in both the public and private sectors.


Anthony Rainbow (Associate Director)

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Anthony Rainbow is the General Manager of IWM. He has worked in senior business development roles in the pharmaceutical and healthcare sectors for over a decade and is focused on IWM’s commercial strategy and operations.

Drawing on his successful GAA career – where over 19 years he won two Leinster Championships for his native Kildare, as well as a prestigious All Star in 2000 – Anthony is well versed in building and managing successful and high performing business teams that deliver for their clients.

Profile photo for Anthony Rainbow (Associate Director)

Anthony Rainbow is the General Manager of IWM. He has worked in senior business development roles in the pharmaceutical and healthcare sectors for over a decade and is focused on IWM’s commercial strategy and operations.

Drawing on his successful GAA career – where over 19 years he won two Leinster Championships for his native Kildare, as well as a prestigious All Star in 2000 – Anthony is well versed in building and managing successful and high performing business teams that deliver for their clients.


Paul McGuigan (Associate Director)

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Paul McGuigan is IWM’s Operations Manager. He joined IWM in 2014 and has over 15 years’ experience in the water treatment and hygiene industry.

A graduate of Queen’s University Belfast, Paul oversees the work of IWM’s technicians and consultants across all of our public and private sector programmes. In an industry where there is no room for error he ensures that all of our staff consistently operate to the highest quality standards.

Profile photo for Paul McGuigan (Associate Director)

Paul McGuigan is IWM’s Operations Manager. He joined IWM in 2014 and has over 15 years’ experience in the water treatment and hygiene industry.

A graduate of Queen’s University Belfast, Paul oversees the work of IWM’s technicians and consultants across all of our public and private sector programmes. In an industry where there is no room for error he ensures that all of our staff consistently operate to the highest quality standards.


Kieran McGuinness (Water Treatment Manager)

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Kieran McGuinness is IWM’s Business Development Manager. Kieran joined IWM in 2016 and has over 20 years’ experience in account management roles in the water treatment and hygiene industry having previously worked for both GE Water and Aquachem Ltd.

A graduate of NUIG, Kieran is responsible for developing our existing accounts and ensuring that they perform according to our client’s requirements.

Profile photo for Kieran McGuinness (Water Treatment Manager)

Kieran McGuinness is IWM’s Business Development Manager. Kieran joined IWM in 2016 and has over 20 years’ experience in account management roles in the water treatment and hygiene industry having previously worked for both GE Water and Aquachem Ltd.

A graduate of NUIG, Kieran is responsible for developing our existing accounts and ensuring that they perform according to our client’s requirements.


Jason Lynch

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Jason Lynch is IWM’s Operations/Project Manager. He joined IWM in 2014 and has over 22 years’ experience in the Water Treatment  industry having previously worked for Norwood Plumbing. IWM is the third Water Treatment company Jason has worked for.

Jason has completed training in BOSIET (Basic Offshore Safety Induction & Emergency Training), MIST (Minimum Industry Safety Training) and HUET & EBS (Helicopter Underwater Escape Training with Emergency Breathing Systems) at the National Maritime College of Ireland in Cork.

Jason has also spent time off-shore working in the Caspian Sea conducting Pre-Commissioning work.

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Jason Lynch is IWM’s Operations/Project Manager. He joined IWM in 2014 and has over 22 years’ experience in the Water Treatment  industry having previously worked for Norwood Plumbing. IWM is the third Water Treatment company Jason has worked for.

Jason has completed training in BOSIET (Basic Offshore Safety Induction & Emergency Training), MIST (Minimum Industry Safety Training) and HUET & EBS (Helicopter Underwater Escape Training with Emergency Breathing Systems) at the National Maritime College of Ireland in Cork.

Jason has also spent time off-shore working in the Caspian Sea conducting Pre-Commissioning work.


Seamus Sloan (Business Development Manager)

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Seamus Sloan is the Business Development Manager & heads up the new water purification division in IWM.

He has over 30 years’ experience in water treatment which includes boiler/cooling chemicals, legionella control & water purification. Furthermore, he has degree in Chemistry BSc & MBA which gives him understanding of water chemistry & expertise which is quite unique.

He worked for renowned International company specialising in filtration, UV, laboratory water systems & healthcare RO systems for 7 years. In 2005 he set up Greencastle Technology Ltd GTL) which focussed on building very strong customer base through providing exceptional levels of service. In last few years GTL experience & expertise has led to it becoming one of the main providers of water purification plant & service in healthcare. In 2022, IWM acquired GTL & water purification division continues to undergo rapid growth due to synergy being realised by takeover.

Profile photo for Seamus Sloan (Business Development Manager)

Seamus Sloan is the Business Development Manager & heads up the new water purification division in IWM.

He has over 30 years’ experience in water treatment which includes boiler/cooling chemicals, legionella control & water purification. Furthermore, he has degree in Chemistry BSc & MBA which gives him understanding of water chemistry & expertise which is quite unique.

He worked for renowned International company specialising in filtration, UV, laboratory water systems & healthcare RO systems for 7 years. In 2005 he set up Greencastle Technology Ltd GTL) which focussed on building very strong customer base through providing exceptional levels of service. In last few years GTL experience & expertise has led to it becoming one of the main providers of water purification plant & service in healthcare. In 2022, IWM acquired GTL & water purification division continues to undergo rapid growth due to synergy being realised by takeover.