Trust & Estate Services. Asset Management. Securities Custody. Established in 1994, Mission is an independent trust company based in Tucson, Arizona. Our core services include trust and fiduciary services, asset management, and securities custody. Mission works with high net worth families, special needs or supplemental benefits trusts, religious and non-profit organizations, retirement, corporate and captive insurance assets. Mission is a business that is all about people. We want to meet with you, get to know you, and be there when you need us—as our quarter-century history shows. We also want you to get to know us, one of the most stable and experienced trust teams in Arizona.