Currently, I have found that web3auth.io and magic.link provide these kind of services, but I feel restricted in the way they force you to implement them in the front-end. Today I discovered hedgehog.audius.org, a package that provides wallets through username and password. Even though this library was the kind of thing I was looking for, it is 100% written in Javascript and does not provide types for Typescript... Source: almost 2 years ago

Banks like multis.com but not multis.com also like Juno.finance but that offer business account. Essentially crypto neobanks. Source: about 1 year ago

We created Multis, a service dedicated to offer banking services to Web3 Native Companies (Off-ramp/On-ramp/USD Account/Credit Cards/Accounting) on Ethereum and Polygon for now (more chains to come). Source: over 1 year ago

I'm 0xAERG, a senior dev working at multis.co and I'm very proud to announce that we've released today one of the biggest features I've worked on in my career, which is our (virtual but soon to be physical) debit card. This enables US based web3 businesses to offramp and spend there crypto treasury in no-time. Considering that we've got the quickest KYB process in the market (less than a day) this makes this... Source: over 1 year ago

I know exchanges like Coinbase and Kraken allow you to set up business accounts with them. Otherwise, a quick Google search yielded me this cool lookin wallet/platform: Multis. Now, I personally do not know any details about Multis, so take it with a grain of salt. However their homepage description seems to fit what you may be looking for. And as always, do your own research on them first. Source: about 3 years ago