Substack

Company United States

Substack is a company in social networks and media platforms founded in 2,017^[1] and based in San Francisco, California^[1].

“Substack is the app for independent voices: a free newsletter, video, and podcast hosting platform with paid subscriptions built in.”^[2]

Founded: 2,0173 Nov 2026
Employees: 51-200
Sources: 33 sites

Similar organizations5

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Each with its fit to Substack, from 0 to 100%: how close it is in what it does, its industry, the distinctive parts both public maps hold, and size and region. 85% and above is a direct peer, 70 to 85 close, 60 to 70 related; under 65 is left out, so there may be few. Open a row for its breakdown.

79%
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PatreonCompany · Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content Providers · United States
Company · Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content Providers · United States

Close in what it does · Same industry · 10 distinctive shared parts · Same country and sizeWhy 79%

Component	Match	Weight	Adds
What it doesHow close what it says it does reads to Substack's, against an ordinary organization.	76%	60%	+45.3
IndustrySame industry	88%	30%	+26.4
Shared parts10 distinctive parts on both public maps.	100%	5%	+5.0
Size & regionCountry same · size similar · model different.	56%	5%	+2.8
Fit			79%

Fit = Σ weight × match over the components known for both, the weights re-scaled to 100%. Unknown is left out, never counted as a difference.

74%

MastodonCompany · Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content Providers · Germany

Company · Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content Providers · Germany

Mastodon is a free and open-source software platform for decentralized social networking with microblogging features similar to Twitter.

Very close in what it does · Same industry · 8 distinctive shared partsWhy 74%

Component	Match	Weight	Adds
What it doesHow close what it says it does reads to Substack's, against an ordinary organization.	87%	60%	+52.2
IndustrySame industry	59%	30%	+17.8
Shared parts8 distinctive parts on both public maps.	65%	5%	+3.2
Size & regionCountry different · size similar · model different.	22%	5%	+1.1
Fit			74%

Fit = Σ weight × match over the components known for both, the weights re-scaled to 100%. Unknown is left out, never counted as a difference.

People: 11-50
Parts: 27

69%

MediumCompany · Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content Providers · United States

Company · Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content Providers · United States

Medium is an American online publishing platform for written content such as articles and blogs, developed by Evan Williams and launched in August 2012. It is owned by A Medium Corporation.

Same industry · 7 distinctive shared parts · Same country and sizeWhy 69%

Component	Match	Weight	Adds
What it doesHow close what it says it does reads to Substack's, against an ordinary organization.	56%	60%	+33.7
IndustrySame industry	88%	30%	+26.4
Shared parts7 distinctive parts on both public maps.	76%	5%	+3.8
Size & regionCountry same · size similar · model same.	100%	5%	+5.0
Fit			69%

Fit = Σ weight × match over the components known for both, the weights re-scaled to 100%. Unknown is left out, never counted as a difference.

People: 51-200
Parts: 19

67%

StravaCompany · Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content Providers · United States

Company · Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content Providers · United States

Strava connects millions of runners, cyclists, hikers, walkers and other active people through the sports they love – all on our mobile app and website.

Same industry · 9 distinctive shared parts · Same countryWhy 67%

Component	Match	Weight	Adds
What it doesHow close what it says it does reads to Substack's, against an ordinary organization.	53%	60%	+31.7
IndustrySame industry	88%	30%	+26.4
Shared parts9 distinctive parts on both public maps.	94%	5%	+4.7
Size & regionCountry same · size different · model same.	78%	5%	+3.9
Fit			67%

Fit = Σ weight × match over the components known for both, the weights re-scaled to 100%. Unknown is left out, never counted as a difference.

People: 501-1000
Parts: 25

65%

InstagramCompany · Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content Providers · United States

Company · Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content Providers · United States

Instagram is an American photo and short-form video sharing social networking service owned by Meta Platforms. It allows users to upload media that can be edited with filters, be organized by hashtags, and be associated with a location via geographical tagging.

Same industry · 10 distinctive shared parts · Same countryWhy 65%

Component	Match	Weight	Adds
What it doesHow close what it says it does reads to Substack's, against an ordinary organization.	54%	60%	+32.2
IndustrySame industry	88%	30%	+26.4
Shared parts10 distinctive parts on both public maps.	95%	5%	+4.7
Size & regionCountry same · size different · model different.	33%	5%	+1.7
Fit			65%

Fit = Σ weight × match over the components known for both, the weights re-scaled to 100%. Unknown is left out, never counted as a difference.

People: 1000+
Parts: 23

Similar organizations5

PatreonCompany · Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content Providers · United States

MastodonCompany · Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content Providers · Germany

MediumCompany · Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content Providers · United States

StravaCompany · Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content Providers · United States

InstagramCompany · Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content Providers · United States