It holds significant stakes in various Omani companies, ranging from financial services, property development, food, and the industrial sector.

Ominvest's key subsidiaries are Oman Arab Bank (51 percent; the remaining owned by Arab Bank) and National Life & General Insurance Company (NLG), which contribute significantly to the company's earnings.

[2][3] Internationally, the company has stakes in Dubai-based International General Insurance, National Finance House in Bahrain, and Budva Beach Properties in Montenegro.

[4] In 2015, the company merged with Oman National Investment Corp (ONIC).

[5] At the time, analysts said the combination of the two companies would create a larger investment fund and achieve economies of scale for their operating subsidiaries.