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Radar · Communication Apps in San Francisco

Best Communication Apps Companies in San Francisco, United States

The 130 best Communication Apps companies in San Francisco, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Discord.

130companies tracked
$1.4Bdisclosed funding
2unicorns
48have raised

Ranked: Best Communication Apps companies in San Francisco

#CompanyApp-install YoYDisclosed fundingLast roundEmployeesFounderTech stackPatents & IP focusRecent signals
1Bridgefy
Messaging app that works even without Internet or phone data
+47%—81 mo ago16Jorge Rios
CEO
WebflowWordPressMySQL+228 patents
Mesh networking protocols enabling device-to-device communication through intermediate nodes
—
2Life360
Mobile app connecting family members and close friends
87Tech top 16%Customers top 19%Funding top 22%News top 24%
All 14 signals ▾
Techtop 16%
Customerstop 19%
Fundingtop 22%
Newstop 24%
Markettop 27%
Fin. healthtop 28%
Growthtop 35%
Talenttop 37%
Moattop 38%
Producttop 39%
AItop 45%
Innovationtop 47%
Patentstop 49%
Globalbottom 39%
Tech: 115 technologies across 7/8 capability areas · Cloud: Akamai, Amazon Alb
Customers: Play-Store rating 4.43★ across 2,200,377 ratings (1 apps) · Review volume +6% in 6 mo
rank vs industry peers · Fliar Intelligence Index 87/100
+22%$90M12 mo ago383
383 → 855 (+123%)
—Amazon WebstoreCart FunctionalityContentful+4147 patents
Context-aware mobile app monitoring, access control, geofence management, and safety alerts
1 partnership · 1 award
3Clubhouse 🦄
App-based social platform for audio sharing
76Customers top 23%Moat top 26%Talent top 28%Growth top 31%
All 10 signals ▾
Customerstop 23%
Moattop 26%
Talenttop 28%
Growthtop 31%
Fundingtop 33%
Techtop 36%
Markettop 41%
Producttop 46%
Globalbottom 45%
Newsbottom 32%
Customers: Play-Store rating 4.45★ across 590,066 ratings (1 apps) · Review volume +1% in 6 mo
Moat: Editorial + unicorn rating 9/10 · Unicorn
rank vs industry peers · Fliar Intelligence Index 76/100
+10%$100M62 mo ago87Daniel Yousefian
Co-Founder
Cart FunctionalityGhostNode.js+13——
4Discord 🦄
Provider of a platform for group chats, video, and text communication
80Market top 19%Moat top 20%Patents top 24%Funding top 25%
All 12 signals ▾
Markettop 19%
Moattop 20%
Patentstop 24%
Fundingtop 25%
Techtop 29%
Producttop 29%
Customerstop 32%
Innovationtop 41%
Growthtop 42%
Talenttop 45%
Newstop 49%
Globalbottom 42%
Market: 614 employees (top 10% of Mobile) · Top-1,000 web property
Moat: Editorial + unicorn rating 10/10 · IP moat: 38 patents
rank vs industry peers · Fliar Intelligence Index 80/100
+10%$922M51 mo ago614Gadiel Figueroa
Co-Founder
WebflowApple iCloud MailGoogle Workspace+2138 patents
AI‑enhanced real‑time messaging, moderation, notifications, and UI for live communication platforms
3 partnerships
5Chatous
Topic-based anonymous messaging platform
+4%$2M138 mo ago—Kevin Guo
Co-Founder & CEO
———
6Skout
Mobile dating and people discovery application
+2%$27M170 mo ago242—Node.jsZohoRadix UI+23——
7Fluently
AI-powered speaking coach for calls
78Growth top 12%Customers top 22%Tech top 32%Talent top 38%
All 10 signals ▾
Growthtop 12%
Customerstop 22%
Techtop 32%
Talenttop 38%
Fundingtop 43%
AItop 45%
Moattop 48%
Marketbottom 44%
Productbottom 40%
Globalbottom 37%
Growth: Web rank 5,000,000 → 500,000 YoY · App-install growth +500% YoY
Customers: Play-Store rating 4.83★ across 31,481 ratings (1 apps)
rank vs industry peers · Fliar Intelligence Index 78/100
—$2M23 mo ago—Yurii Rebryk
Co-Founder & CEO
TurbopackSentryNode.js+23——
8Fyusion
Developer of 3D image processing technology for consumer applications
—$71M84 mo ago80—WordPress Block EditorWordPressMySQL+14371 patents
Advanced 3D computer vision and synthetic view generation for imaging and analysis
—
9Hyphenate
AI-powered chatbot for customer support
—$36M114 mo ago8————
10iSkoot
Mobile VOIP calling service
—$32M211 mo ago11——37 patents
Associating callers and callees across networked devices for mobile communication services
—
11Cooliris
Mobile messaging solution provider for consumers
—$28M168 mo ago17——18 patents
Multimedia browsing and sharing interfaces for immersive full-screen and grid-view galleries.
—
12Blend
AI-powered text-to-video tool transforming text into engaging short videos
—$13M117 mo ago—Evan Rosenbaum
Co-Founder & CPO
—8 patents
Hybrid event streaming platform integration and decentralized consumer financial data management
2 partnerships
13Mysterious
Online platform offering decentralized messaging solutions
—$3M50 mo ago—Kartik Sathappan
Co-Founder & CEO
———
14OpenGarden
Mesh network based chat application
—$13M101 mo ago4————
15MessageMe
Engaging communication experience
—$13M157 mo ago1————
16After School
Resources and support for teens, parents, and homeschooling families
—$16M124 mo ago9————
17Bebo
Web Social Networking portal & social app developer
—$15M241 mo ago10—Sentrylit-htmllit-element+83 patents
Social networking drawing and multimedia content creation/transmission platforms
—
18Messaging Plus
Messaging app like whatsapp
—$9M162 mo ago37—PythonGoogle Sign-inDjango+11——
19Rabbit
Video chat application
—$7M135 mo ago22—CaddyHTTP/333 patents
Network-enabled interactive devices and user interfaces for product-service communication
—
20Sidecar
Messenger and Calling App
—$5M183 mo ago—Rob Glaser
Founder & Chairman
———
21TurnUpp
Mobile social networking app
—$5M148 mo ago—Ike Singh Kahal
Co-Founder
———
22MeRightNow
Platform to create expressive memes and gifs
—$2M152 mo ago—Evan Tana
Co-Founder
———
23Status
An auto status updating app
—$2M147 mo ago—Srini Panguluri
Co-Founder
———
24Evergram
Scheduled photo messaging app
—$2M155 mo ago—Jeff Caden
Co-Founder
—4 patents
CRM-focused future messaging platform for customer relationship management
—
25Charge Messenger
Simple pay-as-you-go mobile data service for modern LTE devices
—$2M129 mo ago9————
26Parenthoods
Location-based community platform for parents
—$1M139 mo ago3————
27Cola
Melbet: Online sports betting and casino platform with mobile app
—$1M127 mo ago77—Cloudflare Browser InsightsCloudflareOpen Graph+1——
28Yobongo
Location based communication app
—$1M182 mo ago—Caleb Elston
Co-Founder and CEO
———
29Twyxt
Private messenger for couples
—$1M162 mo ago1————
30Chime
Video clip chat app
—$1M128 mo ago6————
31WutWut
Domain verification service ensuring website availability and ICANN compliance
—$1M144 mo ago—Paul McKellar
Co-Founder
———
32Huckle
Location-messaging app
—$800K133 mo ago5Gregory Hill
Co-Founder
———
33DokiDoki
Building an immersive audio metaverse for human connection and exploration
—$450K111 mo ago2————
34Glimr
Picture messaging with sound
—$485K156 mo ago—David Estrada
Founder & CEO
———
35Rume
Offering online video calling platform
—$150K69 mo ago2Vincenzo Vitiello
Co-Founder
———
36Emojer
Online personalized animated emoji creation app
—$150K93 mo ago—Bogdan Apostol
Co-Founder & CEO
———
37Awesometalk
Limited information available
—$150K144 mo ago2————
38Sounder
A Voice messaging app for small community.
—$150K171 mo ago—Michael Fortson
Founder & CEO
———
39imHome
Messaging app for family
—$120K156 mo ago—Kevin Xu
Founder & CEO
———

Top 12 Communication Apps companies in San Francisco

#1
Public · San Francisco, California · founded 2008 · 383 employees
$89.7Mraised
▾

Mobile app connecting family members and close friends. It enables users to view the location of their family members on a map, communicate with them, and receive alerts. Users can organise their friends by creating circles. The application offers real-time GPS tracking and driving info of the family members. It also provides a paid premium version with additional features. The app is available for Android and iOS.

Fliar Intelligence Index™ 87how this company ranks against its industry peers
Tech
top 16%
Customers
top 19%
Funding
top 22%
News
top 24%
Market
top 27%
Fin. health
top 28%
Tech: 115 technologies across 7/8 capability areas · Cloud: Akamai, Amazon Alb · Devops: Envoy, Nginx
Customers: Play-Store rating 4.43★ across 2,200,377 ratings (1 apps) · Review volume +6% in 6 mo · Marquee-customer mentions: top 17% of tracked companies
Funding: Raised $89.7M across 9 rounds · 9 rounds over 18 yrs (0.5/yr) · Last round Post IPO (Jun 2025)
Audience (LinkedIn): 34k LinkedIn followers — 6.1% of this cohort's audience
Activity (LinkedIn): 1 partnerships · 1 awards (incl. Ultra) announced in 12 mo
Funding rounds
  • Jun 2025Post IPO$320M
  • Jun 2021Post IPO$2.1M
  • Dec 2017Series C$18.5M
  • May 2014Series C$50M
Investors
Bryant Stibel, DCM Ventures, Bessemer Venture Partners, Fontinalis Partners, Seraph Group, 500 Global
Tech stack
Acquia Cloud PlatformAcquia Cloud Site FactoryAdaAddthisAdobe AnalyticsAdobe Experience Platform Identity Service
#2
Discord 🦄
Series I · San Francisco, California · founded 2012 · 614 employees
$922.3Mraised
▾

Provider of a platform for group chats, video, and text communication. It allows users to create communities for various interests and activities. The platform offers features such as custom emojis, soundboard effects, and screen sharing. It supports multiple devices, enabling users to stay connected across different platforms.

Fliar Intelligence Index™ 80how this company ranks against its industry peers
Market
top 19%
Moat
top 20%
Patents
top 24%
Funding
top 25%
Tech
top 29%
Product
top 29%
Market: 614 employees (top 10% of Mobile) · Top-1,000 web property · Unicorn (valued $15.0B)
Moat: Editorial + unicorn rating 10/10 · IP moat: 38 patents · Decacorn
Patents: 38 patents matched (strict assignee match) · 38 filings since 2022 vs 0 in 2017-21 · Latest publication 2025
Audience (LinkedIn): 482k LinkedIn followers — 86.4% of this cohort's audience
Activity (LinkedIn): 3 partnerships (incl. Facepunch Studios) announced in 12 mo
Funding rounds
  • Mar 2022Series I—
  • Sep 2021Series I$500M
  • May 2021Series H—
  • Nov 2020Series H$100M
Founders & team
Gadiel FigueroaCo-FounderStanislav VishnevskiyCo-Founder & CTOHumam SakhniniCEO
Investors
Sony, Tencent, Benchmark, Greylock Partners, Spark Capital, YouWeb
Tech stack
Apple Icloud MailCdnjsCloudflareCloudflare Bot ManagementCloudflare Browser InsightsCore-Js
#3
Seed · San Francisco, California · founded 2023
$2.5Mraised
▾

AI-powered speaking coach for calls. It provides feedback on day-to-day calls to help with accents, grammar, and communication skills.

Fliar Intelligence Index™ 78how this company ranks against its industry peers
Growth
top 12%
Customers
top 22%
Tech
top 32%
Talent
top 38%
Funding
top 43%
AI
top 45%
Growth: Web rank 5,000,000 → 500,000 YoY · App-install growth +500% YoY · Fresh capital in last 24 mo
Customers: Play-Store rating 4.83★ across 31,481 ratings (1 apps)
Tech: 35 technologies across 5/8 capability areas · Cloud: Cloudflare, Vercel · Observability: Sentry
Audience (LinkedIn): 10k LinkedIn followers · 17 engagements/post (1.8× cohort median)
Activity (LinkedIn): 1 awards announced in 12 mo
Funding rounds
  • Jun 2024Seed$2M
  • Jan 2024Seed$500K
Founders & team
Yurii RebrykCo-Founder & CEOStanislav BeliaevCo-Founder
Investors
Y Combinator, Pioneer Fund, SID Venture Partners
Tech stack
AmplitudeApplovinBootstrapCloudflareCloudflare Browser InsightsCore-Js
#4
Series C · San Francisco, California · founded 2020 · 87 employees
$100Mraised
▾

App-based social platform for audio sharing. The platform allows users to create rooms, talk to their friends, and meet new friends. They can organize audio meetings with friends. The app is available for Android and iOS users.

Fliar Intelligence Index™ 76how this company ranks against its industry peers
Customers
top 23%
Moat
top 26%
Talent
top 28%
Growth
top 31%
Funding
top 33%
Tech
top 36%
Customers: Play-Store rating 4.45★ across 590,066 ratings (1 apps) · Review volume +1% in 6 mo
Moat: Editorial + unicorn rating 9/10 · Unicorn · 9 curated direct competitors tracked
Talent: 3 named leaders on record · 3 C-suite/founder profiles curated
Funding rounds
  • Apr 2021Series C—
  • Jan 2021Series B$100M
  • Series A$12M
Founders & team
Daniel YousefianCo-FounderRohan SethCo-FounderPaul DavisonCo-founder and CEO
Investors
DST Global, Tiger Global Management, Elad Gil, Andreessen Horowitz, Nomad Ventures, Scribble Ventures
Tech stack
CloudflareCloudflare Bot ManagementCore-JsEnvoyGoogle AnalyticsGoogle Font Api
#5
Acquired · San Francisco, California · founded 2014 · 80 employees
$71.3Mraised
▾

Developer of 3D image processing technology for consumer applications. They generate an immersive image fusing the capabilities of a traditional photo,a panorama,motion capture and 3D. Its technology enables users to create immersive 3D images by moving any camera around a person,object or scene.

Funding rounds
  • May 2019Series B$3M
  • Apr 2019Series B$30M
  • Dec 2017Series B$22M
  • Apr 2015Series B$13M
Investors
New Enterprise Associates, UTEC, ITOCHU, Presence Capital, Ntt Docomo Ventures, COLOPL
Tech stack
WordpressMysqlPhpVimeoSvg SupportYoast Seo
#6
Series C · San Francisco, California · founded 2015 · 8 employees
$35.5Mraised
▾

AI-powered chatbot for customer support. It enables users to connect and chat with their users. Users can embed and manage the SDK on the mobile OS. Its AI bots can automate routine responses to common inquiries for customer support. It also supports real-time voice or video communication within the app.

Funding rounds
  • Nov 2016Series C$13.5M
  • 2015Series B$22M
Investors
Matrix Partners China, SIG, Sequoia Capital
#7
Acqui-Hired · San Francisco, California · founded 2005 · 11 employees
$32.2Mraised
▾

iSkoot is a VOIP calling service that extended the reach of PC calling by allowing users to make and receive PC calls using only their regular cell phones. Users don't need special hardware, headsets, microphones, broadband connections, USB phones and PCs. iSkoot has an extended partnership with Skype. iSkoot offers Skype-branded mobile software to mobile network operators in Argentina, Greece, Israel, Norway, South Africa, Switzerland and Turkey. These products deliver mobile Skype voice functionality based on circuit switch-to-VoIP technology.

Funding rounds
  • Nov 2008Series C$19M
  • Feb 2007Series B$7M
  • Nov 2006Series A$6.2M
Investors
Khosla Ventures, CRV, Vision Capital
#8
Acquired · San Francisco, California · founded 2006 · 17 employees
$27.6Mraised
▾

Cooliris develops mobile messaging solutions for mobile and web consumers.Its product portfolio includes the Gallery app and BeamIt. BeamIt enables its users to swipe and view various photos without visually interrupting the flow of the conversation.It was acquired by Yahoo in 2014.

Funding rounds
  • Jun 2012Series D—
  • Feb 2011Series C$9.6M
  • Apr 2009Series B$15M
  • 2007Series A$3M
Investors
Kleiner Perkins, The Westly Group, DAG Ventures, T.Capital, DOCOMO Innovations, Montage Capital
Tech stack
PhpApache Http ServerRecaptchaGoogle Font Api
#9
Acquired · San Francisco, California · founded 2007 · 242 employees
$26.6Mraised
▾

Mobile dating and people discovery application. The platform allows users to meet people near them or around the world. It offers features like search filters, video calling, chatting, and more. Mobile applications are available for Android and iOS users.

Funding rounds
  • Apr 2012Series B$22M
  • Jul 2010Angel$1.5M
  • Angel$3.1M
Investors
Andreessen Horowitz, NFX, Wavemaker Partners, Time Zero Capital
Tech stack
Amazon CloudfrontAmazon Web ServicesAngularjsApple Sign-InAws Certificate ManagerBootstrap
#10
Series A · San Francisco, California · founded 2012
$12.6Mraised
▾

AI-powered text-to-video tool transforming text into engaging short videos. This innovative platform repurposes long texts into captivating shorts with a single click, leveraging generative Artificial Intelligence. It empowers users to create visually appealing content from written material, opening avenues for diverse applications. The platform offers features to create AI videos, cinematic extreme sports videos, and consistent characters with AI image generators. It is a valuable resource for content creators, marketers, and educators seeking to enhance their storytelling and communication through dynamic video content. The platform also provides resources on leveraging platforms for creativity, connection, and financial growth. It is a B2B SaaS platform offering subscription and pricing plans.

LinkedIn Pulse recent public activity · Jul 2026
Audience: 31k LinkedIn followers — 5.6% of this cohort's audience
Activity: 2 partnerships (incl. Genies) announced in 12 mo
Funding rounds
  • Sep 2016Series A$2.4M
  • Jun 2015Series A$6.3M
  • Feb 2014Seed$2.7M
  • Jul 2013Seed$1.2M
Founders & team
Evan RosenbaumCo-Founder & CPO
Investors
New Enterprise Associates, Red Sea Ventures, Great Oaks Venture Capital, CAA, Foundation Capital, Galvanize
Tech stack
Nginx
#11
Deadpooled · San Francisco, California · founded 2021
$3.1Mraised
▾

Online platform offering decentralized messaging solutions

Funding rounds
  • Mar 2022Seed$3.1M
Founders & team
Kartik SathappanCo-Founder & CEOSamraaj BathCo-Founder & CTO
Investors
Y Combinator
#12
Deadpooled · San Francisco, California · founded 2011 · 4 employees
$12.8Mraised
▾

OpenGarden (same as Firechat) creates a mesh network using Bluetooth and peer-to-peer WiFi. OpenGarden transmits messages and pictures offline between devices that are located within 200 feet of one another. OpenGarden users form a network that increases in size with the number of devices. It allows messages to hop from one device to the next in order to reach the recipient. When an Internet connection or cellular network is available, OpenGarden uses them to reach remote recipients. It allow users to send messages and photo, create live chatrooms, view the most popular messages in the public conversations. It received an Innovation Award in March 2015.

Funding rounds
  • Jan 2018Series B$15.9M
  • Dec 2014Series A$10.8M
  • Jul 2012Seed$2M
Investors
DG Ventures, Kima Ventures, Future Perfect Ventures, August Capital, Sherpalo Ventures, Firebolt Ventures

Funding & investor landscape

$1.4Btotal disclosed funding
38companies funded
79disclosed rounds
0rounds last 90 days
Most active investors
Y Combinator8 rounds
Google Ventures5 rounds
Andreessen Horowitz4 rounds
500 Global3 rounds
Bessemer Venture Partners3 rounds
BoxGroup3 rounds
Foundation Capital3 rounds
Greylock Partners3 rounds
SV Angel3 rounds
Slow Ventures3 rounds

Notable founders

Gadiel Figueroa
Co-Founder · Discord
Stanislav Vishnevskiy
Co-Founder & CTO · Discord
Yurii Rebryk
Co-Founder & CEO · Fluently
Stanislav Beliaev
Co-Founder · Fluently
Daniel Yousefian
Co-Founder · Clubhouse
Rohan Seth
Co-Founder · Clubhouse
Evan Rosenbaum
Co-Founder & CPO · Blend
Kartik Sathappan
Co-Founder & CEO · Mysterious
Samraaj Bath
Co-Founder & CTO · Mysterious
Amir Sarhangi
Founder & CEO · Messaging Plus
Steve Schroeder
CoFounder & COO · Messaging Plus
Rob Glaser
Founder & Chairman · Sidecar
Prism market signals · United States · country-scoped Prism corpus, 11,423,205 docs

Market landscape — 10 sub-themes by coverage

Share of Communication Apps coverage by sub-theme.

Regulatory-risk over time rising

Funding & growth over time

funding rising · growth rising

Common questions

How many Communication Apps companies are there in San Francisco, United States?
Radar tracks 130 indexable Communication Apps companies headquartered in San Francisco, United States that meet our profile-completeness bar.
What is the total funding raised by Communication Apps companies in San Francisco, United States?
The Communication Apps companies in San Francisco, United States on this list have raised a combined $1.4B in disclosed equity funding across 38 funded companies.
Which is the highest-funded Communication Apps company in San Francisco, United States?
Discord is the highest-funded Communication Apps company in San Francisco, United States, with $922.3M in disclosed equity funding.
How many Communication Apps companies in San Francisco, United States are funded?
38 of the 130 Communication Apps companies in San Francisco, United States on this list have disclosed at least one equity funding round.
How many Communication Apps unicorns are there in San Francisco, United States?
2 Communication Apps 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 Communication Apps companies?
The most active investors in San Francisco, United States Communication Apps companies on this list include Y Combinator, Google Ventures, Andreessen Horowitz, 500 Global, Bessemer Venture Partners.
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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