Thanks for your interest in adding your podcast to Spotify. You can now submit your podcast directly at http://podcasters.spotify.com

If you host with an aggregator you can submit via their dashboard, please follow the instructions below;
Anchor: https://help.anchor.fm/hc/en-us/articles/360003522412-Troubleshooting-podcast-distribution
Audioboom: https://audioboom.zendesk.com/hc/en-us/articles/115002296745-Working-with-other-listening-platforms-Google-Play-Stitcher-etc-
Backtracks: https://blog.backtracks.fm/how-to-submit-your-podcast-to-spotify-980b091e18a8
Blubrry: https://create.blubrry.com/manual/podcast-promotion/submit-podcast-to-spotify/
Buzzsprout: https://www.buzzsprout.com/help/59-submit-to-spotify
Castos: https://support.castos.com/castos-podcast-hosting/submit-your-podcast-to-spotify
Fireside: https://fireside.fm/spotify
LibSyn: https://support.libsyn.com/kb/spotify/
Omny: http://help.omnystudio.com/setting-up-a-podcast/adding-your-show-to-podcast-directories/submit-your-podcast-to-spotify
Pinecast: https://help.pinecast.com/knowledge-base/does-pinecast-support-spotify
Pippa: http://learn.pippa.io/how-to-use-pippa/getting-your-podcast-on-spotify
PodBean: http://help.podbean.com/support/solutions/articles/25000014128-how-to-submit-your-podbean-podcast-to-spotify
Podcaster.DE: https://www.podcaster.de/faq/antwort-52-Wie+melde+ich+meinen+Podcast+bei+Spotify+an%3F/
Podiant: https://podiant.co/blog/spotify/
Podigee: https://www.podigee.com/en/help/publish-podcast-on-spotify/
Podomatic: http://www.podomatic.com/help/article/105
Simplecast: https://help.simplecast.com/publishing-your-podcast/how-to-get-your-podcast-on-spotify
Spreaker: https://help.spreaker.com/kb/sharing-and-distribution/distributing-your-podcast-on-spotify
Transistor: https://help.transistor.fm/article/9-how-do-i-submit-my-show-to-spotify
Whooshkaa: http://support.whooshkaa.com/support/solutions/articles/9000154386-how-to-submit-your-show-to-spotify