We love Further because it offers competitive interest rates that grow the more you save.
Further helps over 10,000 employers manage their HSAs. They have competitive interest rates for balances that approach 1% (as of 2020), and an easy to use debit card/mobile app/web interface for employees to use when spending through their account.
Employers must pay an administrative fee that's worked out with a sales rep. There are three different plans, Further Premium HSA, which has higher interest rates for a higher monthly, Further Select HSA which has lower interest rates but offers FDIC security, and Further Value HSA which lies right in the middle for the lowest monthly cost.