Castbox is a global podcast platform that enables users to easily find, access, create, and enjoy spoken audio content. It offers a wide range of podcasts, audiobooks, FM radio, and other audio content through its mobile apps (iOS and Android) and web platform. Castbox leverages AI-powered search and personalized recommendations to enhance content discovery. It also provides tools for podcasters, including hosting and analytics, aiming to be an all-in-one solution for both listeners and creators in the rapidly growing audio entertainment market.
The San Francisco office likely focuses on global market strategy, business development, partnerships, product management for international markets, and engineering talent acquisition in Silicon Valley.
Likely a modern, tech-focused office space designed to foster collaboration and innovation, characteristic of Silicon Valley tech companies. May include open-plan layouts and various employee amenities.
A fast-paced, agile, and innovative environment, emphasizing technology-driven solutions for the audio content space. Culture likely promotes cross-functional teamwork and a user-centric approach to product development.
The San Francisco presence is crucial for accessing the US market, global partnerships, venture capital, and a diverse tech talent pool, positioning Castbox as a key player in the international podcasting industry.
Castbox supports its worldwide user base and content creators through its strategically located offices in San Francisco and Beijing, and its globally accessible platform. Functions supported globally include app development across multiple OS, cloud infrastructure management for seamless audio streaming, content curation and partnerships with creators worldwide, multilingual user support, and localized marketing efforts to cater to diverse international audiences.
Not Publicly Disclosed (Specific street address for SF office varies/confidential)
San Francisco
California
USA
Address: Specific address not publicly disclosed.
Leverages local tech talent for innovation and caters to the unique aspects of the Asian audio market, while being instrumental in the foundational development of the Castbox platform.
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As of April 2025, Castbox' leadership includes:
Castbox has been backed by several prominent investors over the years, including:
Specific executive movements at private companies like Castbox are not always widely publicized. As of late 2023/early 2024, there have been no major, publicly announced executive hires or departures prominently featured in tech news. Leadership, particularly founder Xiaoyu Renee Wang, appears stable.
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Castbox likely utilizes common corporate email address formats. Based on standard industry practices for tech companies of its size, the most probable formats would involve combinations of first name, last name, or initials.
[first].[last]@castbox.fm or [first_initial][last]@castbox.fm
Format
example.jane.doe@castbox.fm or jdoe@castbox.fm
Example
70%
Success rate
Podcast Business Journal • March 7, 2023
Castbox announced the launch of its new Creator Studio, a free, all-in-one podcasting platform. It offers features like unlimited hosting, one-click distribution to major podcast platforms, and advanced analytics, aiming to simplify podcast creation and management for creators....more
Business Wire • July 12, 2022
Castbox announced an integration with HERE Navigation, a leading location data and technology platform, to bring its extensive library of podcasts and audio content directly into millions of in-car infotainment systems globally....more
TechCrunch • October 28, 2019
Castbox introduced 'Livecast,' a new feature enabling users to host and participate in live audio streams. This interactive service allows for real-time engagement between hosts and listeners, including virtual gifting and commenting, expanding beyond on-demand podcasting....more
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