Irish consulting engineering business, Jennings O'Donovan, has been taken over by UK located RSK Group.
Financial details of the deal have not been disclosed.
Founded in 1950, the Sligo based firm employs 100 people and provides renewable energy, water supply, wastewater treatment and other planning and environmental services to customers.
These include utilities, developers, local authorities and industry here, in the UK, Eastern Europe and elsewhere.
Jennings O’Donovan has an annual turnover of around €8.2m.
"Jennings O’Donovan has enviable skills and experience in crucial sectors that are so important to RSK across the world and are key to our commitments to the UN Sustainable Development Goals," said RSK Group Chief Executive Officer, Alan Ryder.
"In renewables alone, the business has a project portfolio extending to more than 2500 MW of power and it is a recognised market leader in wind energy development. When this portfolio is completed, total investment will extend to €3 billion in the wind energy sector."
"This acquisition is one that will play an important role in further strengthening our operations in the renewables, environmental and water sectors in particular but equally, Jennings O’Donovan’s experience and track record for delivery and service excellence in other sectors adds to our diversity and growth."
RSK Group, which is made up of more than 200 individual companies employing 12,000 people globally, already has 500 staff in Ireland.
"We are delighted to be joining the RSK Group and becoming part of the wider RSK family," said Jennings O’Donovan Director, David Kiely.
"This acquisition will see our staff and business continuing as normal while moving to new ownership within a larger organisation that will support our continued growth and development in line with our commitment to the principles of climate action and the low carbon economy."
