Best Radio Tech Companies in California, United States
The 155 best Radio Tech companies in California, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Descript.
Ranked: Best Radio Tech companies in California
| # | Company | Disclosed funding | Last round | Employees | Founded | Founder | App-install YoY | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Descript Provider of an AI-powered platform for video and podcast creation | $101M | 43 mo ago | 86 86 → 182 (+112%) | 2017 | — | — | 23 patents Patents concentrated in computing, sensing & instrumentation | — |
| 2 | Himalaya Online podcast network | $100M | 88 mo ago | 7 | 2015 | — | +24% | 2 patents Herbal pharmaceutical formulations for anti-diabetic and therapeutic phytochemical applications | — |
| 3 | TuneIn Subscription-based broadcast radio channel aggregator | $98M | 106 mo ago | 137 137 → 185 (+35%) | 2002 | Richard Stern Chief Executive Officer | +1% | 6 patents Location-based media streaming and interruption prediction for personalized broadcast delivery. | 2 partnerships |
| 4 | Slacker LiveOne: Music, podcasts, live events, and more for everyone | $62M | 110 mo ago | 50 | 2006 | — | — | 19 patents Personalized digital media delivery and interactive playback interfaces for audio/video content | — |
| 5 | fireside Co-Founded by Falon Fatemi and Mark Cuban, Fireside is the first interactive Web3 streaming platform. | $25M | 37 mo ago | 44 | 2021 | — | — | — | — |
| 6 | Fireside Chat Online podcast streaming platform | $25M | 37 mo ago | 32 | 2021 | Mark Cuban Co-Founder | — | — | — |
| 7 | Dash Radio Digital radio broadcasting platform | $22M | 74 mo ago | 35 | 2008 | Scott Keeney Founder | — | 4 patents Patents concentrated in computing, sensing & instrumentation | — |
| 8 | Stitcher Online platform for podcast and radio station hosting | $22M | 146 mo ago | 12 | 2008 | — | — | — | — |
| 9 | Solve Online radio & podcast streaming platform | $20M | 78 mo ago | 2 | 2018 | — | — | — | — |
| 10 | Wondery Podcast streaming platform | $16M | 83 mo ago | 100 | 2016 | — | +13% | — | — |
| 11 | Shots YouTube-based multi-channel network | $15M | 129 mo ago | 7 | 2013 | — | — | 2 patents Medical suction‑vibration devices for therapeutic and cosmetic body stimulation | — |
| 12 | Dear Media Online podcast network for women | $13M | 46 mo ago | 56 | 2018 | Michael Bosstick Co-Founder & CEO | — | — | — |
| 13 | Gumball Online marketplace platform for podcast sponsorships | $12M | 51 mo ago | 25 | 2015 | — | — | — | — |
| 14 | Callin App-based social podcasting platform | $12M | 57 mo ago | 20 | 2011 | David Sacks Co-Founder | — | — | — |
| 15 | HeadGum Online podcast network | $10M | 51 mo ago | 8 | 2015 | Marty Michael Co-Founder | — | — | — |
| 16 | Gimme Radio Internet radio streaming platform | $9M | 38 mo ago | 20 | 2017 | Jon Maples Co-Founder | — | — | — |
| 17 | Mindset App-based platform for streaming audio stories | $9M | 57 mo ago | 18 | 2021 | Eddie Nam Co-Founder | +10% | — | — |
| 18 | Blue Wire Sports-related podcast network | $9M | 28 mo ago | 88 | 2018 | Kevin Jones Founder & CEO | — | — | — |
| 19 | RedCircle Provider of a marketplace for podcast hosting and analytics solution for marketing campaigns | $8M | 57 mo ago | 19 | 2018 | Mike Kadin Co-Founder & CEO | — | — | — |
| 20 | ART19 Tools for hosting, distribution, and monetization of podcasts | $8M | 105 mo ago | 41 | 2012 | — | — | 3 patents Real-time ad delivery and measurement analytics for digital media advertising platforms. | 1 partnership |
| 21 | Concept.io App-based platform for streaming podcasts | $7M | 155 mo ago | 19 | 2012 | G.D. Ramkumar Co-Founder and CEO | — | 83 patents Advanced vacuum and corrugated thermal insulation for heating and appliance components | — |
| 22 | Quake Media Subscription-based on-demand content streaming platform | $6M | 58 mo ago | 7 | 2002 | Doug Rosenberg CEO | — | — | — |
| 23 | Podhero Online platform offering crowdfunding for podcasts | $6M | 85 mo ago | — | 2012 | Pete Curley Founder & CEO | — | — | — |
| 24 | podhero Podhero is a social podcast player that allows people to discover shows with friends and recommend episodes. | $6M | 85 mo ago | 2 | 2015 | — | — | — | — |
| 25 | Artifact Personalized podcast production solutions provider | $5M | 42 mo ago | 29 | 2020 | Grandpa Gil Co-Founder | — | — | — |
| 26 | Mercora International platform for electronic music, fostering connections and industry insights | $5M | 256 mo ago | — | 2003 | Srivats Sampath CEO & Founder | — | — | — |
| 27 | Huxe Provider of personalized audio briefings and interactive audio content creation | $5M | 8 mo ago | — | 2024 | Raiza Martin Co-Founder | — | — | — |
| 28 | Camb.ai Provider of AI-powered localization services for entertainment, sports, and content | $4M | 17 mo ago | — | 2022 | Akshat Prakash Chief Technology Officer | Cofounder | — | — | 2 partnerships |
| 29 | glystn Glystn is a reliable platform for creator analytics and insights of any scale. | $4M | 36 mo ago | 10 | 2019 | — | — | — | — |
| 30 | 60dB Online radio podcast application | $4M | 116 mo ago | 11 | 2016 | — | — | — | — |
| 31 | Aha by Harman On-demand radio stations of internet media content | $3M | 205 mo ago | 7 | 2008 | — | — | — | — |
| 32 | AdsWizz Revolutionizing digital audio advertising, monetization, and content creation solutions | $3M | 199 mo ago | 17 | 2008 | — | — | 19 patents Real-time personalized audio advertising and sensor-driven interactive ad delivery. | 2 partnerships |
| 33 | FlyCast Offline enabled radio service | $2M | 202 mo ago | — | 2006 | Sam Abadir Founder & CEO | — | 2 patents Efficient progressive video encoding for distributed swarm processing environments. | — |
| 34 | PodcastOne Provider of advertiser-supported podcast network and platform | $2M | 32 mo ago | — | 2010 | Kit Gray Co-Founder | — | — | — |
| 35 | Spreaker Online podcast and radio streaming platform | $2M | 177 mo ago | 56 | 2009 | — | +7% | — | — |
| 36 | Pop Up Archive Speech to text software | $1M | 115 mo ago | 7 | 2012 | — | — | — | — |
| 37 | CurtCo Online podcast network | $1M | 69 mo ago | — | 1995 | Bill Curtis Founder & CEO | — | — | — |
| 38 | Forever Dog Productions Online podcast network platform | $1M | 18 mo ago | — | 2016 | Brett Boham Co-Founder | — | — | — |
| 39 | nēdl Transcription solutions for radio listeners | $1M | 60 mo ago | 3 | 2005 | Ayinde Alakoye Co-Founder & CEO | — | — | — |
| 40 | Joyride Podcast player app | $1M | 158 mo ago | 5 | 2012 | James Zhang Founder / CTO | — | — | — |
| 41 | Snipd Developer of an AI-powered platform for podcast listening and learning | $851K | 51 mo ago | 5 | — | Kevin Smith Co-Founder | +39% | — | — |
| 42 | Audiograph Online podcast network | $616K | 51 mo ago | 4 | 2019 | Quinn Stearns Co-Founder | — | 2 patents Audio labeling and playback systems for collectible items | — |
| 43 | Earbits Online radio broadcast aggregator platform | $580K | 161 mo ago | — | 2010 | Joey Flores Founder & CEO | — | 2 patents High-performance network data streaming devices and methods. | — |
| 44 | PocketPod AI-based podcast creation platform | $500K | 24 mo ago | — | 2024 | Ross Cefalu Co-Founder & CEO | — | — | — |
| 45 | Fathom AI-based podcast streaming platform | $495K | 55 mo ago | — | 2021 | Paul Bloch Co-Founder | — | 9 patents Automated additive manufacturing and pricing for custom 3D‑printed objects and injection molds | — |
| 46 | Adori Labs End-to-end platform for audio creators to increase engagement and monetize content | $355K | 102 mo ago | 16 | 2015 | Kartik Parija Co-Founder | — | 20 patents Enables interactive multimedia entertainment with synchronized audio encoding and functional interactivity | — |
| 47 | Onomy Online podcast network platform | $300K | 31 mo ago | 10 | 2020 | Sam Rowen Co-Founder | — | 2 patents Optimizing the ordering of database queries for efficient information retrieval | — |
| 48 | DeepCast AI-powered podcast platform | $250K | 34 mo ago | — | 2023 | Lucas Dickey Founder & CEO | — | — | — |
| 49 | Elision Platform for visualization of podcasts | $150K | 73 mo ago | 11 | 2020 | — | — | — | — |
| 50 | Jamit Decentralized podcast platform offering engagement solutions | $135K | 27 mo ago | 4 | 2020 | Koromone Asabe-Yobaere Co-Founder | — | — | — |
Top 12 Radio Tech companies in California
#1
Series A · San Jose, California · founded 2024$4.6Mraised▾
Provider of personalized audio briefings and interactive audio content creation. It offers personalized audio streams based on user interests. The platform allows users to interact with audio content. Users can request explanations or details within the audio. It enables users to create personal podcasts from curiosities.
- Sep 2025Series A$4.6M
#2
Seed · San Francisco, California · founded 2022$4Mraised▾
Provider of AI-powered localization services for entertainment, sports, and content. The company delivers translation and localization for various content creators and media enterprises. It offers solutions leveraging academic AI research in translation, voice cloning, and speech synthesis models. The company provides tools for dubbing, translation, and content scaling.
- Jan 2025Seed$14.3M
- Feb 2024Seed$4M
#3
Series C · San Francisco, California · founded 2017 · 86 employees$100.6Mraised▾
Provider of an AI-powered platform for video and podcast creation. The platform offers tools for editing, transcription, and generating media. It provides features such as screen recording, captioning, and AI speech capabilities. The platform also offers templates and AI avatars for users. It caters to marketing, learning, sales, support, and content creation purposes.
- Nov 2022Series C$50.6M
- Jan 2021Series B$30M
- Sep 2019Series A$15M
- Dec 2017Series A$5M
#4
Seed · North Hollywood, California · founded 2016$1Mraised▾
Online podcast network platform. It offer podcasts in various genres, including comedy, culture, and entertainment.
- Nov 2024Seed$1M
#5
Series A · San Francisco, California · founded 2018 · 88 employees$8.7Mraised▾
Sports-related podcast network. The content developed by the company mainly concentrates on sports. It has podcasts on football, basketball, and other sports. It also has a section for premium podcasts. The podcasts are available to users who subscribe through monthly charges.
- Feb 2024Series A—
- Jul 2022Series A$2.5M
- Dec 2020Series A$5M
- Feb 2020Seed$1.2M
#6
Series A · San Francisco, California · founded 2021 · 44 employees$25Mraised▾
Developer of a next-generation podcast platform intended for creators to bring the audience into the story through live, interactive, virtual shows. The company's platform is made for podcasting and conversing with listeners through said podcasts, enabling podcast hosts to distribute shows everywhere with the click of a button, understand what their audiences want more of with sophisticated analytics, and connect with those audiences in real-time.
#7
Acquired · Milpitas, California · founded 2021 · 32 employees$25Mraised▾
Online podcast streaming platform. It also hosts shows from various creators and brands. It also allows the users to be part of the show and interact with the creators.
- Apr 2023Series A$25M
#8
Acquired · San Francisco, California · founded 2002 · 137 employees$98.4Mraised▾
Subscription-based broadcast radio channel aggregator. It allows users to stream music, live sports, news, podcasts, and radio through various radio stations. It provides music-streaming radio stations that are available on dashboards, smartphones, and tablets. It also offers streaming for live sports, audiobooks, and commercial radio listening. The mobile app is available for Android, iOS, and Windows mobile devices. It generates revenue through monthly subscriptions and in-app purchases.
- Aug 2017Series D$50M
- May 2013Series C$25M
- Aug 2012Series B$16M
- 2010Series A$6M
#9
Series A · San Francisco, California · founded 2017 · 20 employees$9.1Mraised▾
Internet radio streaming platform. It allows users to stream the radio without ads and subscription charges through the application. It also connects DJs such as musicians, writers, actors, and artists through its community platform. The app is available on the Google Play Store and Apple store.
- Apr 2023Series A$3M
- Jan 2022Series A$6M
- Apr 2019Conventional Debt$240K
- 2018Seed$120K
#10
Series C · San Francisco, California · founded 2015 · 7 employees$100Mraised▾
Online podcast network. it enables users to discover and stream expert-recommended podcasts based on various categories such as sports, health, film & TV, education, culture, food, and more. Users can also download podcasts to listen offline through the mobile app. The app is available for Android and iOS devices. Monetizes through in-app purchases.
- Feb 2019Series C$100M
#11
Acquired · San Diego, California · founded 2006 · 50 employees$62.2Mraised▾
LiveOne: Music, podcasts, live events, and more for everyone. It is a digital media company focused on delivering premium music and entertainment content. The platform offers live events, music streaming, original shows, and podcasts across various genres like Alternative, Country, Rock, Pop, EDM/Dance, Hip-Hop/R&B, and Metal. Users can sign up for free or log in to access a personalized library. The platform provides options to upgrade for ad-free listening, offline access, and unlimited skips through subscription plans. It offers mobile apps for convenient access and encourages users to stay updated through newsletters. The platform supports artists through streaming and provides options for uninterrupted listening. It also provides features like casting and social media integration. The website uses cookies and requires acceptance of terms and privacy policies.
- Apr 2017Conventional Debt$2M
- Feb 2011Series C$3M
- Feb 2010Series C$2M
- Oct 2009Series C$12.2M
#12
Series A · West Hollywood, California · founded 2018 · 56 employees$12.7Mraised▾
Online podcast network for women. They also organize live events. Users can listen to podcasts on Apple Podcasts, Spotify, and more.
- Aug 2022Series A$4.7M
- Apr 2020Series A$8M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Radio Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Rf Wireless Chips in California is moving
A read on the academic research around Rf Wireless Chips in California — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 576 papers.
UC San Diego, UC Santa Barbara, and Caltech optimistically advance RF wireless chip research, predominantly focusing on RFIC design, power amplifiers, and GaN semiconductors, with breakthroughs outpacing concerns.
- University of California, San Diego124
- University of California, Santa Barbara80
- California Institute of Technology72
- University of California, Los Angeles64
- University of California, Davis56
- Extremely high frequency11→12
- Silicon on insulator3→4
- Resonator1→3
- Radar1→3
- Amplifier20
- Extremely high frequency7
- CMOS6
- Bandwidth (computing)5
- Electronic engineering5
Common questions
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.