Startups: Companies that are in their initial stages of business and typically developing a business model and seeking financing.
From what I understand, the Microsoft route only works if your investor, accelerator or university is already part of the Microsoft for Startups network and can give you a referral code.
For other options, you can also check Sourcey here: https://sourcey.com/startup-credits. They list current startup credit programs from different providers. For example, AWS has offers up to $200,000, and Google Cloud has options up to $100,000 on its Scale tier and up to $250,000 for eligible AI startups.
Eligibility will still depend on each provider’s own requirements, but it might give you a few other options to look at.