Coinbase. They also have a value that you can set. I did not include my referral code. If your looking for a wallet where you are in control of the private keys there are lots.
Do you consider Coinbase Vault secure enough for high amounts?
If you are using Two Factor, and the Vault you are pretty darn secure. You can adjust the withdraw time, and can have multiple people have to sign for it, if you wish.
