Open Solutions Inc. has agreed to acquire a financial services technology arm of Securian Financial Group Inc.

Open Solutions, Glastonbury, Conn., will be getting IA Systems Inc., Albany, N.Y., a Securian unit that sells the StreamLend and StreamLend Velocity loan origination software systems.

Securian is a unit of Minnesota Mutual Insurance Companies Inc., St. Paul, Minn.

Securian and Open Solutions will be forming a major alliance, and they will be joining to sell financial services companies a combination of insurance products and services and technology products and services, the companies say.

Open Solutions will be connecting Securian’s insurance products with Open Solutions’ loan origination and data processing systems, and Securian will help sell the Open Solutions systems, the companies say.