Máire O'Neill
Máire is a partner in our Corporate Department and Co-lead of the Firm’s Energy, Renewables and Utilities practice group. She specialises in transactional corporate with a particular emphasis on private equity transactions (acting for both companies and investors) and M&A transactions in the technology, fintech and energy and utilities sectors.
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- Dublin - Head Office

Máire has vast experience advising emerging and scaling companies and venture capital investors on equity investments in the Irish market as well as venture debt providers on the equity aspects of their funding. She also advises on a wide range of general corporate matters, including corporate restructurings (solvent and insolvent) including domestic mergers and capital reductions.
Recent significant deals include advising:
- UKG Inc. on its acquisition of the Global Payroll Provider, Immedis Group
- Private Equity Firm, CBPE on its acquisition of Irish tech company Signel Web Services
- Co-Founder of Taoglas on the majority stake acquisition of Taoglas by US private equity firm Graham Partners
- EirGrid plc, the national transmission system operator, in connection with the development and financing of the 700MW HVDC Celtic Interconnector between Ireland and France with a capital cost in excess of €1.6bn
- Element Investments on the disposal of Terra Solar to Omnes backed Power Capital and Terra Solar II to Orsted
- Fenergo Group in connection with its acquisition of Sentinels
- Wealth at Work on its acquisition of Irish financial advisors Employee Financial Wellness
- Carlyle Cardinal on its sale of The City Bin Company to Thorntons Recycling
- Low code CyberSecTech Tines on its $55m Series B2 Fundraising as well as previous Series B and Series A and A2 fundraisings
- FinTech Apata.com on its equity fundraisings
- Advising several leading venture debt providers on the equity elements of their venture debt transactions
- Imagine Learning on its acquisition of Irish EdTech company Robotify Labs
- Fenergo Group on its acquisition by Astorg and Bridgepoint (as well as its previous equity investments and corporate structuring)
- DCC plc group on its acquisition of Naturgy Ireland, Jones Oil and Campus Oil
- Supporting our Corporate Restructuring & Insolvency teams advising stakeholders in numerous retail insolvencies and restructurings
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