Techstars offers a 3-month, mentorship-driven accelerator for startups, including a $120K investment and access to its global network. It also runs Founder Catalyst, a 10-week pre-accelerator for entrepreneurs who want training, tools, mentorship, and network support before applying to an accelerator. The opportunity is open to founders across tech-related sectors, from idea stage through pre-seed and beyond, with application routes through accelerator programs, Founder Catalyst, and Startup Weekend.