What else companies provide startup offers and perks for software?

Hi everyone! We're European startup, applying to AWS $5k credits. I also heard that other companies are also providing startups with software or tools for free or with huge discounts (like Zendesk or Hubspot, but we don't need them yet). Please advice what other are doing it? and which of them do you use? PS: I also heard that Stripe gives some free or fee periods for startups, but I can't find it in Stripe's website :-)