Mainstar Trust, formerly known as First Trust Company of Onaga, is a large self-directed IRA custodian based in Onaga, KS – with more than $7 billion in assets under custody. According to their website Mainstar was founded in 1978. Below you will find more information about Mainstar Trust. If you have personal experience working with Mainstar, … Continue reading Mainstar Trust (formerly First Trust Company of Onaga)