ONEtoONE UK is a key asset within ONEtoONE’s leading global investment banking group, which has a presence in over 90 cities across five continents. We deliver high‑impact corporate finance and M&A advisory services that empower business owners, multinationals, private equity investors and professional partners to unlock growth and realise long‑term value.
We are a truly international team with deep industry expertise. We focus on structuring transformative transactions, and driving outcomes that achieve significant returns for every client. Our success is measured not just in deals completed, but in enduring partnerships that create tangible, lasting value across markets and industries.
Our international team
ONEtoONE’s extensive international team provides clients with unparalleled access to global markets, strategic partners, and potential investors.
This is more important than ever given that outward M&A transactions are on the rise in the UK.
Seamless UK-Ireland M&A expertise
Through our strategic partnership with the ONEtoONE team in Ireland, we can provide clients with seamless access to the Irish market. We will leverage the deep local expertise and long-standing relationships of our Irish Partners such as Declan Quilligan.
Proven track record in 200+ UK deals
Our team combines decades of hands‑on M&A and corporate finance experience across a multitude of sectors such as IT, energy, healthcare and manufacturing.
This enables us to originate, structure, negotiate and close complex deals, from mid‑market acquisitions to cross‑border transactions.


