Radar Companies Digital Publishing Platforms · San Francisco
Radar · Digital Publishing Platforms in San Francisco

Best Digital Publishing Platforms Companies in San Francisco, United States

The 75 best Digital Publishing Platforms companies in San Francisco, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Reddit.

75companies tracked
$2.5Bdisclosed funding
2unicorns
43have raised

Ranked: Best Digital Publishing Platforms companies in San Francisco

#CompanyApp-install YoYDisclosed fundingLast roundFounderTech stackWeb popularityPatents & IP focusRecent signals
1Substack 🦄
Platform allowing writers to publish and monetize their content directly with readers.
+140%$89M11 mo agoJairaj Sethi
Co-Founder & CTO
SubstackSentryZendesk+21Top 10k
2Buy Me A Coffee
Provider of a crowdfunding or tipping platform for creators
+39%$150K85 mo agoJoseph Sunny
Co-Founder
Node.jsTailwind CSSAmazon Web Services+17Top 50k
3Patreon 🦄
Provider of a reward-based crowdfunding platform for musicians and content creators
+7%$412M62 mo agoApple iCloud MailGoogle WorkspaceBootstrap+20Top 500k69 patents
AI-driven recommendation and AR identification tools for creator subscription platforms
1 internship
4Reddit
Community based discussion platform
+6%$1.6B37 mo agoAaron Swartz
Co-Founder
WebflowSentryProton Mail+37Top 500k1 launch
5Hooked
Mobile app for storytelling
+1%$1M120 mo agoApache HTTP ServerAmazon Web ServicesMailChimp+5Top 50M
6Medium
Online publishing platform thet allows users to read and write blogs
$132M55 mo agoEvan Williams
Co-Founder & Chairman
MediumApple iCloud MailGoogle Workspace+27Top 5k
7Campuswire
Online platform offering Q&A-based learning solutions
$33M37 mo agoTade Oyerinde
Founder & CEO
SentryZendeskApple iCloud Mail+24Top 500k
8Radish
Platform for user-submitted serialized fiction stories
$66M71 mo agoProton MailGoogle WorkspaceFacebook Login+11Top 5M
9Formspring
Social Q&A portal
$19M140 mo ago
10Pulse
Provider of Q and A platform to enterprises
$11M77 mo agoVictory Jones
Co-Founder
104 patents
Patents concentrated in health & consumer products
11Threads
Platform offering text-based conversation and community networking solutions
$10M87 mo agoSuman Venkataswamy
Co-Founder
HSTSPWAOpen Graph+1Top 1k
12Posterous
Online blogging platform for users
$10M177 mo ago
13Tapas
Digital platform offering comics, novels, and community for story lovers
$6M99 mo agoChang Kim
Founder & CEO
SentryNode.jsJava+20Top 50k16 patents
Patents concentrated in health & consumer products
14Findery
Provider of a platform for sharing and discovering stories about places
$11M172 mo ago
15Storehouse
Mobile game site offering massive wins and friendly user experience
$8M145 mo ago
16myWebRoom
Personalized content discovery platform
$6M146 mo agoArtem Fedyaev
Founder & CEO
17KahaniBox
Offering an online interactive storytelling platform
$1M61 mo agoZaid Azmi
Founder
18PublicEarth
Discover curated travel experiences: attractions, restaurants, nightlife, and accommodations
$4M192 mo agoDuncan McCall
Founder
19Muzy
Photos collage micro-blogging platform
$4M156 mo agoMatt Rubens
Co-Founder & CTO
20Storyboarder
Online platform offering storytelling solutions
$125K36 mo agoJoe Watkins
Co-Founder
SentryNode.jsGoogle Sign-in+14Top 5M
21slideshare
SlideShare is an online community that allows users to upload and share PowerPoint presentations, documents…
$3M217 mo agoTurbopackSentryNode.js+16Top 1k
22Scoop.it
Content curation and social sharing platform for businesses
$3M154 mo agoWordPressMySQLPHP+28Top 500k
23LightPole
Exploring diverse topics from science and culture to travel
$2M219 mo agoMarcus Colombano
VP Marketing
24Storify
Social media content curation platform
$2M184 mo ago
25RateItAll
Rating platform for customers
$1M190 mo agoLawrence Coburn
Founder & CEO
Node.jsTailwind CSSVue.js+9Top 5M
26Wiselike
Platform to create personal Q&A pages
$1M129 mo ago
27GemShare
Online platform sharing content on multiple categories
$1M146 mo ago
28Tactilize
Corporate gifting and event fringe activities for team building in Singapore
$1M163 mo agoNicolas Voisin
Founder & CEO
29Forvm
Image-based Q&A & Sales Lead Generator for products
$642K156 mo agoTobias Haag
Founder & CEO
30Fluther
Social Q&A portal
$600K201 mo agoBen Finkel
Founder & ex-CEO
Google CloudYUIGoogle Tag Manager+5Top 5M
31Quest
Location-based P2P Q&A app
$500K148 mo agoDeepak Ravindran
Founder & CEO
23 patents
Design and manufacturing of beverage bottles and related packaging technologies.
32Sponge
Q & A platform for brands, media outlets, and topical sites
$400K194 mo agoKrutal Desai
Founder
33Wevolver
Online media portal focused on engineering & technology
$291K101 mo agoSentryTypeScriptGraphQL+26Top 1M2 launchs
34Squad
App-based social screen sharing platform
$125K99 mo agoWordPress Block EditorElementorWordPress+13Top 50M
35Curious Fictions
Online platform allowing users to share short stories
$120K99 mo agoTanya Breshears
Founder
36MightyQuiz
User generated quizzing platform
$150K216 mo agoAltay Guvench
Founder
37Biographicon
Wikipedia for biographies
$125K228 mo agoEthan Herdrick
Founder & ex-CEO
38Posthaven
SaaS and app-based blogging platform
$120K156 mo agoGarry Tan
Co-Founder
RubyTailwind CSSRuby on Rails+16Top 5M

Top 12 Digital Publishing Platforms companies in San Francisco

#1
Series C · San Francisco, California · founded 2017 · 76 employees
$89.4Mraised

Substack is a publishing platform that enables independent writers to create and distribute their own newsletters to a global audience, offering a self-serve model for content creation and monetization.

LinkedIn Pulse recent public activity · Jul 2026
Audience: 89k LinkedIn followers — 7.7% of this cohort's audience
Funding rounds
  • Jul 2025Series C$100M
  • May 2023Series B$3.3M
  • Mar 2021Series B$65M
  • Jul 2019Series A$19.1M
Founders & team
Jairaj SethiCo-Founder & CTOHamish McKenzieCo-Founder Chris BestCo-Founder & CEO
Investors
Andreessen Horowitz, Y Combinator, Zhen Fund, Garage Capital, TCG Ventures, Fifty Years
Tech stack
ActblueAirtableAlpine.JsAmazon AssociatesAppdynamicsBuy Me A Coffee
#2
Acquired · San Francisco, California · founded 2005 · 4 employees
$1.6Braised

Community based discussion platform. It is a social news and discussion website where users can share and discuss content on various topics and interests. The platform allows users to create and participate in communities of like-minded individuals, fostering discussions, debates, and sharing of knowledge.

LinkedIn Pulse recent public activity · Jul 2026
Audience: 503k LinkedIn followers — 43.8% of this cohort's audience · 169 engagements/post (1.6× cohort median)
Activity: 1 product launches announced in 12 mo
Funding rounds
  • May 2023Series F
  • Aug 2021Series F$700M
  • Feb 2021Series E$367.9M
  • Feb 2019Series D$300M
Founders & team
Aaron SwartzCo-FounderAdam CollinsCCONellie PeshkovCPO
Investors
Catamaran, Y Combinator, Andreessen Horowitz, Sequoia Capital, Tencent, Fidelity Investments
Tech stack
Amazon S3Amazon SesAmazon Web ServicesApple Icloud MailBabelCloudflare
#3
Patreon 🦄
Series F · San Francisco, California · founded 2013 · 283 employees
$412.1Mraised

Provider of a reward-based crowdfunding platform for musicians and content creators. It allows users to invest in projects to avail returns in the form of pre-sold concert tickets, personal gifts, meet & greets, etc. The backers pledge a fixed amount every month to the chosen project. It is based on the ad revenue and per-stream payouts model. The application can be accessed on iOS and Android devices.

LinkedIn Pulse recent public activity · Jul 2026
Audience: 75k LinkedIn followers — 6.5% of this cohort's audience
Funding rounds
  • Apr 2021Series F$155M
  • Sep 2020Series E$90M
  • Jul 2019Series D$60M
  • Sep 2017Series C$60M
Founders & team
Sam YamCo-FounderJack ConteCo-Founder & CEO
Investors
New Enterprise Associates, Wellington, Glade Brook Capital, Thrive Capital, DFJ Growth, Index Ventures
Tech stack
Alpine.JsAmazon CloudfrontAmazon Web ServicesApolloApple Icloud MailAtlassian Statuspage
#4
Series C · San Francisco, California · founded 2012 · 121 employees
$132Mraised

Online publishing platform thet allows users to read and write blogs. It allow users to write, publish, and read articles or blogs on many topics such as technology, business, personal development, and politics. The mobile application is available for Android and iOS users.

LinkedIn Pulse recent public activity · Jul 2026
Audience: 215k LinkedIn followers — 18.7% of this cohort's audience
Funding rounds
  • Nov 2021Series C$31M
  • Apr 2016Series C$50M
  • Sep 2015Series B$57M
  • Jan 2014Series A$25M
Founders & team
Evan WilliamsCo-Founder & ChairmanJack SchulzeBoyd Cohen
Investors
Greylock Partners, Obvious Ventures, Andreessen Horowitz, Google Ventures, TCG Ventures, Code Advisors
Tech stack
Alpine.JsAmazon AssociatesAmazon SesAmazon Web ServicesApolloApple Icloud Mail
#5
Series A · San Francisco, California · founded 2016 · 9 employees
$32.6Mraised

Online platform offering Q&A-based learning solutions. It provides a communications platform for colleges & universities. It allows students and professors to post class information, documents, Q&A, announcements, and discussions.

Funding rounds
  • May 2023Series A$29M
  • Oct 2019Series A$3.6M
Founders & team
Tade OyerindeFounder & CEO
Investors
Bloomberg Beta, Founders Fund, Rethinkeducation, Reach Capital, Precursor Ventures, Rethink Capital Partners
Tech stack
Apple Icloud MailCloudflareCloudflare Bot ManagementCore-JsDatadogDocusign
#6
Acquired · San Francisco, California · founded 2015 · 114 employees
$66.2Mraised

Platform for user-submitted serialized fiction stories. Writers need to apply before being allowed to publish their content. Once verified, they can write, share, and monetize their bite-sized serial fiction stories using a freemium model, and earn an income from their work.

Funding rounds
  • Jul 2020Series A$63.2M
  • Jan 2017Seed$3M
Investors
Mirae Asset, Mirae Asset Capital Markets, Partners Investment, Daekyo Investment, Kakao, SBVA
Tech stack
Amazon CloudfrontAmazon S3Amazon Web ServicesCore-JsFacebook LoginGoogle Analytics
#7
Acqui-Hired · San Francisco, California · founded 2009 · 32 employees
$19.3Mraised

Spring.me formerly Formspring.me is a social Q&A portal. Users of the site can follow others privately. While logged in as a registered user, people can ask questions to his or her followers from the homepage. Spring.me also asks one question per day named "Formspring Question of the Day" which is flashed in user's inbox. Has apps on iOS and Android platforms. Generates most revenue through advertisements.

Funding rounds
  • Oct 2014Series B$5M
  • Nov 2010Series B$11.5M
  • Mar 2010Series A$2.5M
  • Jan 2010Seed$255K
Investors
Redpoint Ventures, Baseline Ventures, Floodgate, SV Angel, Lowercase Capital, Polaris Partners
#8
Series A · San Francisco, California · founded 2018 · 75 employees
$10.6Mraised

Provider of Q and A platform to enterprises. The platform provides real time data gathered from executives by improving response rates of surveys and turn surveys into a two way conversations with the customers. It also provides a dashboard with data and analysis.

Funding rounds
  • Jan 2020Series A$6.5M
  • Jun 2018Seed$4M
  • 2018Seed
  • Mar 2018Seed$120K
Founders & team
Victory JonesCo-Founder
Investors
AV8 Ventures, FJ Labs, True Ventures, Y Combinator, Right Side Capital Management, Investo
Tech stack
Amazon Web ServicesGoogle Tag ManagerGoogle AnalyticsAmazon S3Amazon CloudfrontAws Certificate Manager
#9
Acquired · San Francisco, California · founded 2017 · 23 employees
$10.5Mraised

Platform offering text-based conversation and community networking solutions. It allows users to share ideas, ask questions, post random thoughts, and find communities that match their interests.

Funding rounds
  • Feb 2019Series A$10.5M
Founders & team
Suman VenkataswamyCo-Founder
Investors
Sequoia Capital, Flex Capital, Caffeinated Capital, MaC Venture Capital
Tech stack
HstsHttp/3Open GraphPwa
#10
Acqui-Hired · San Francisco, California · founded 2008 · 6 employees
$10.1Mraised

Online blogging platform for users. Mobile methods include sending an email, with attachments of photos, MP3s, documents, and video. It allows users to point the DNS listing for a domain name or subdomain they already owned.

Funding rounds
  • Sep 2011Series B$5M
  • Mar 2010Series A$4.4M
  • Dec 2008Seed$725K
  • May 2008Seed$15K
Investors
Y Combinator, XG Ventures, Redpoint Ventures, Icon Ventures, Trinity Ventures, SV Angel
#11
Acquired · San Francisco, California · founded 2012 · 78 employees
$6.4Mraised

Digital platform offering comics, novels, and community for story lovers. It provides a diverse range of content, including action, romance, and fantasy stories, catering to a broad audience of readers and creators. The platform features a subscription model, early access, and free content options, encouraging user engagement and content discovery. It fosters a community through forums and social media integration, allowing readers to connect and share their favorite stories. The platform supports independent creators, providing tools for publishing and monetization. It offers a mobile app for convenient access and personalized recommendations. The platform provides a space for mature content, catering to adult readers. It also offers promotional events, challenges, and sales to enhance user experience and drive engagement. The platform is a hub for digital storytelling, connecting creators and readers through a variety of genres and formats.

Funding rounds
  • Mar 2018Series A$5M
  • Aug 2017Series A
  • Jul 2015Series A$1M
  • Jan 2014Series A$2M
Founders & team
Chang KimFounder & CEO
Investors
E&Investment, SK Planet, Strong Ventures, 500 Global, ID Ventures, SBI Investment Korea
Tech stack
AdjustAmazon AlbAmazon Web ServicesBootstrapBrazeCloudflare
#12
Series A · San Francisco, California · founded 2011 · 2 employees
$11Mraised

Provider of a platform for sharing and discovering stories about places. The platform allows users to share their experiences and knowledge related to various locations. It enables users to learn more about places they are interested in. The platform is accessible via applications for multiple operating systems.

Funding rounds
  • 2012Series A$2M
  • Feb 2012Series A$7.5M
  • Jun 2011Seed$1.5M
Investors
Redpoint Ventures, SV Angel, True Ventures, Founder Collective, Betaworks

Funding & investor landscape

$2.5Btotal disclosed funding
39companies funded
78disclosed rounds
0rounds last 90 days
Most active investors
Y Combinator13 rounds
SV Angel6 rounds
Betaworks5 rounds
500 Global4 rounds
Andreessen Horowitz4 rounds
Greylock Partners4 rounds
Lowercase Capital4 rounds
MaC Venture Capital3 rounds
Redpoint Ventures3 rounds
TCG Ventures3 rounds

Notable founders

Jairaj Sethi
Co-Founder & CTO · Substack
Hamish McKenzie
Co-Founder · Substack
Aaron Swartz
Co-Founder · Reddit
Adam Collins
CCO · Reddit
Sam Yam
Co-Founder · Patreon
Jack Conte
Co-Founder & CEO · Patreon
Evan Williams
Co-Founder & Chairman · Medium
Jack Schulze
· Medium
Tade Oyerinde
Founder & CEO · Campuswire
Victory Jones
Co-Founder · Pulse
Suman Venkataswamy
Co-Founder · Threads
Chang Kim
Founder & CEO · Tapas
Prism market signals · United States · country-scoped Prism corpus, 14,915,345 docs

Market landscape — 10 sub-themes by coverage

Share of Digital Publishing Platforms coverage by sub-theme.

Regulatory-risk over time rising

Funding & growth over time

funding rising · growth rising

Common questions

How many Digital Publishing Platforms companies are there in San Francisco, United States?
Radar tracks 75 indexable Digital Publishing Platforms companies headquartered in San Francisco, United States that meet our profile-completeness bar.
What is the total funding raised by Digital Publishing Platforms companies in San Francisco, United States?
The Digital Publishing Platforms companies in San Francisco, United States on this list have raised a combined $2.5B in disclosed equity funding across 39 funded companies.
Which is the highest-funded Digital Publishing Platforms company in San Francisco, United States?
Reddit is the highest-funded Digital Publishing Platforms company in San Francisco, United States, with $1.6B in disclosed equity funding.
How many Digital Publishing Platforms companies in San Francisco, United States are funded?
39 of the 75 Digital Publishing Platforms companies in San Francisco, United States on this list have disclosed at least one equity funding round.
How many Digital Publishing Platforms unicorns are there in San Francisco, United States?
2 Digital Publishing Platforms companies in San Francisco, United States on this list are valued at $1B or more.
Who are the top investors in San Francisco, United States Digital Publishing Platforms companies?
The most active investors in San Francisco, United States Digital Publishing Platforms companies on this list include Y Combinator, SV Angel, Betaworks, 500 Global, Andreessen Horowitz.
Sweetie IyerMarkets & Momentum

Sweetie watches where the money and the users are piling in. She covers sector wealth and momentum — the install curves and revenue pools that show which corners of the market are quietly on fire.

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