Traditional banks may offer 2 years free banking to startups but you end up paying high fees thereafter.  

While online-only banks are not new to the scene, the best value we’ve found is with N26, with Revolut Business a second runner up.

N26 is backed up by the Central Bank in Germany so your money is 100% safe. You can bank with them for free and the only fees is with ATM withdrawals of Irish government stamp duty of 12c per withdrawal with a maximum cap of €5/year.  You can get cashback of .1% on purchases with the Mastercard they send you which works out as excellent value overall, especially for small businesses.