Solution 6 has finally secured ownership of legal and accounting specialist CMS/Data for around $46 million.
CMS was acquired by Hummingbird Communications earlier this year, after Solution 6 failed in a bid to purchase CMS from PC Docs.
Chris Tyler, Solution 6 chief executive officer, said the deal was the culmination of almost two years of negotiations.
CMS will now become a fully-owned subsidiary of Solution 6. The acquisition gives Solution 6 much-needed reach in the US, where CMS has an established distribution channel, Tyler said.
"Solution 6 is the global leader in the supply of practice management software to the accounting industry," Tyler said. "By bringing the two organisations together, we create a super-entity that has potent presence in the two leading professional markets," he said.