National Investment Managers Inc. has paid about $1.7 million for Alan N. Kanter & Associates.

National Investment, Dublin, Ohio, is a retirement plan administration and investment management company.

Kanter & Associates, Baltimore, runs retirement plans for small and midsize businesses.

Kanter & Associates was helping plans administer $400 million in assets.

National Investment reports that it now is administering about $11 billion in plan assets.