Submitting your startup to directories is one of the cheapest backlink plays there is. Most startup submission sites are free, you do it once, and a high-authority listing keeps passing link equity (and the occasional signup) for years.
This list is different from the usual startup directory list: we actually submitted OneUp Today to 32 of these directories between May and July 2026, verified which ones really pass a dofollow link, hit the paywalled-backlink traps so you don't have to, and watched our own Ahrefs domain rating climb from 0.8 to 7.0 along the way. The 16 ranked below are the ones we would do first, with what each is genuinely good for; after that there is a table of 40 more startup listing websites ranked by authority.
Want a searchable version instead? We keep a sortable list of 115+ startup directories ranked by domain rating. And once you are listed, the highest-intent channel is still people asking for a tool like yours, which is what Reddit lead generation is built for.