Riverside

Founded in 2020 by brothers Gideon and Nadav Keyson, Riverside (formerly Riverside.fm) lets creators record studio-quality remote podcasts and video interviews directly in the browser, with each participant captured locally to avoid the compression and dropouts of conferencing apps. The platform layers in AI tools for transcription, magic editing, automatic clip generation for social, and noise removal, and is used by Hillary Clinton, Mark Zuckerberg, Bill Gates, and Marvel. Riverside raised a $30M Series C led by Zeev Ventures in December 2024 with participation from Seven Seven Six and Sam Lessin, bringing total funding to roughly $77M.

Riverside set the technical bar for remote recording quality and is now using AI to compress the entire post-production workflow into the same browser tab.

riverside.com Audio & Video Production

Israelprivate

At a glance

Total raised

$77M

last round series c

Headcount

51-200

approximate · public range

Headquarters

Tel Aviv

Israel

Founded

2020

6 years active

Status

Private

Audio & Video Production

Latest valuation

$300M

Series C · 2024

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Funding history

Total raised

$77M

Rounds tracked

Latest stage

Series C

Latest valuation

$300M

Date	Stage	Amount	Valuation	Lead investors
Dec 9, 2024	Series C	$30M	—	Zeev Ventures

Founder backgrounds

Gideon Keyson

Co-founder & CEO

A Dutch-born entrepreneur who moved to Israel after high school, served in the Israeli Navy, and later studied biomedical engineering at Ben-Gurion University. He developed his coding skills through the Israel Tech Challenge (ITC), where he also worked as a teaching assistant. Alongside his brother Nadav Keyson, he founded Riverside in 2019 after becoming frustrated with the poor audio and video quality of existing remote recording tools like Skype and Zoom. Their core technical insight—recording high-bitrate audio and video locally on each participant's device while syncing to the cloud—solved a long-standing quality-versus-reliability tradeoff in remote production. The company has since raised tens of millions in venture funding and counts Disney, Spotify, Verizon, and Hillary Clinton among its early users.

Nadav Keyson

Co-founder & CTO

Co-founded Riverside in 2020 with his brother Gideon Keyson, after the two had been building startups together for roughly five years with no major exits. Originally from Amsterdam, the brothers moved to Tel Aviv to launch the company — a browser-based remote recording studio that grew into a prominent podcast infrastructure platform. Nadav studied at the University of Amsterdam before shifting into full-time entrepreneurship. He leads Riverside's product and engineering direction, driving its expansion from recording software into AI-assisted editing, transcription, and clip generation.

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Leadership

Gideon Keyson

Co-founder & CEO

—

Nadav Keyson

Co-founder & CTO

—

Products

Riverside Studio
Riverside's core browser-based recording product that captures up to 4K video and 48kHz uncompressed audio for every participant locally on their device, then uploads in the background while the conversation streams over WebRTC. This local-recording architecture eliminates the compression artifacts and connection-quality dependence of Zoom-based workflows, producing broadcast-grade masters without dedicated hardware. Studio supports up to eight remote participants plus an audience, and is used by major podcasts, news outlets, and corporate teams for interviews, panels, and live shows.
Magic Editor
Riverside's AI-powered post-production suite that turns raw recordings into finished episodes inside the same browser tab. Magic Editor handles transcription, text-based editing where deleting words removes the corresponding audio and video, automatic removal of filler words and silences, multi-camera switching driven by speaker detection, and AI noise and echo cleanup. The product collapses what used to be a multi-tool editing pipeline (Descript, Auphonic, Premiere) into a single integrated workflow tied directly to the recording session.
Magic Clips
Riverside's AI clip generator that scans long-form recordings and proposes short, vertical, captioned clips optimized for TikTok, Reels, Shorts, and LinkedIn. The system identifies high-engagement moments, frames the active speaker, burns in stylized captions, and outputs platform-ready aspect ratios in a single pass. Magic Clips closes the distribution loop for podcasters and video creators, who increasingly rely on social shorts to drive listener and viewer acquisition for their primary long-form shows.

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