Startup programs
Credits and free tiers for qualifying early-stage startups. Most require being a registered, funded, or formally-incorporated company (YC, VC, or accelerator affiliation opens the bigger tiers).
Student programs
Deals that require verified student status (typically a .edu email or GitHub Student Developer Pack).
No student-only deals in the directory right now. For general student perks, see the GitHub Student Developer Pack.
Accelerator-exclusive
Deals gated to current members or alumni of a named accelerator (e.g. Y Combinator).