In 2014, the IRS maximum 401(k) contribution for an individual is $17,500 but the combined individual/employer maximum is around $52k.
One way to have the combined total higher is to simply increase the match percentage. Generally with a match an employee is well under $52k. It's also normally not possible to have the match increased.
What ways can an employer/employee contribute more to get closer to the $52k maximum in a 401(k)? I know one way is an employer can make safe harbor deposits. Are there others?