Oracle partner DSP has acquired counterpart Explorer UK, creating a £20m-revenue specialist.
The deal brings 50 employees into the business and broadens DSP's "extensive data infrastructure capabilities", it said.
Simon Goodenough, CEO of DSP, said: "This really is a case of one and one makes three. It's great news for our team, customers, partners and investors that we have been able to bring together two of the UK's most renowned database management specialists at such a pivotal time for our industry.
"Explorer's pedigree as an award-winning provider of enterprise grade Oracle solutions addresses our need to offer clients a variety of options, from ultra-fast on-premise database infrastructures to highly secure, integrated cloud environments, all managed by our global managed services delivery team."
DSP was itself acquired via an MBO in August 2018, backed by private equity firm YFM with a £5.3m cash injection.
It claims to have doubled its revenue in the time since the deal.
Meanwhile Leeds-based Explorer was ranked 289th in the latest edition of CRN's VAR 350, with sales of £10.1m for the year ending 31 August 2018.
Founder Ian Thomason will remain with the business and join the DSP board.
He said: "By combining two market leading specialists in their respective domains, we will accelerate our individual growth ambitions, resulting in a sum greater than its parts.
"As well as our shared and deep heritage with Oracle technology, customers from both organisations will benefit from capabilities spanning Microsoft Azure Services, APEX Development, Machine Learning and, of course, Oracle Cloud Infrastructure. I am hugely excited by the next step we are all taking together."
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