The top 25 401(k) plans

The country’s largest retirement plans have a lot of things in common. A high percentage of employees participating. A robust match. A well-integrated financial wellness program. A large number of assets under management. The latter factor, in particular, gives businesses a leg up in negotiating fees and setting the terms of the relationship with their plan provider.

Indeed, General Motors’ Bill Grotz says of his company’s plan, “The investment menu includes fund options with competitive fees based on our large plan size.”