Startup profile for Mux: latest funding, latest known valuation, total disclosed funding, investors, status, sources, and why the company is interesting. Part of the Venture Capital Tracker startup directory.
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Mux funding, valuation and investors

Developer API platform for video streaming, encoding, and playback analytics.

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Funding, valuation & investors

Answer-first snapshot

Latest funding

Series C

$37M · August 2020

Latest known valuation

Not publicly disclosed

Total disclosed equity funding

$37M

Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.

Current status

private

growth · San Francisco, CA

Investors in latest funding

Lead: Andreessen Horowitz

Sources: latest funding Last verified: 2026-07-25

Overview

Mux provides video infrastructure APIs for developers — encoding, streaming, playback, and quality-of-experience analytics. Founded by alumni of Zencoder (acquired by Brightcove) and Video.js, Mux raised a $37M Series C led by Andreessen Horowitz in August 2020, bringing total funding to $69M.

Why Mux is interesting

Zencoder/Video.js alumni building 'Stripe for video' — a16z led $37M Series C in 2020 as streaming infrastructure demand surged.

Product & use cases

Mux offers Video API for upload/encoding/streaming, Mux Data for playback analytics, and Mux Player for embeddable video playback — developer-first video infrastructure replacing self-hosted FFmpeg pipelines.

  • Video streaming API for developer products
  • Playback quality analytics and monitoring
  • Embedded video in SaaS applications

Key facts

  • Series C (Aug 2020): $37M led by a16z — GlobeNewswire, TechCrunch
  • Total funding $69M at Series C
  • Founders from Zencoder and Video.js

Funding history (newest first)

Series C

2020-08 $37M

Source: https://www.globenewswire.com/news-release/2020/08/12/

Investors in our directory

Funds linked from Mux's profile — open a fund page for stage focus and related deal articles.

Andreessen Horowitz

Competitive landscape

Edge: Developer experience and Video.js heritage — API-first where Brightcove and Kaltura target enterprise media companies.

Video infra is consolidating around developer APIs. Mux competes with Cloudflare Stream on DX and pricing. a16z Series C validated category; AI-generated video may expand encoding demand.

  • Cloudflare Stream direct

    Developer video streaming API.

  • Brightcove incumbent

    Enterprise online video platform.

  • AWS MediaConvert incumbent

    Cloud encoding service.

  • Vimeo API adjacent

    Video hosting with API access.

Notable stories

  • Mux co-founders built Zencoder, acquired by Brightcove for $30M, and contributed to Video.js — the most widely deployed web video player.

Industries

Enterprise SaaS Developer Tools Media & Entertainment

FAQs about Mux

Practical answers founders, operators, and investors typically search for.

Developer APIs for video encoding, streaming, and playback analytics.
a16z (/fund/andreessen-horowitz) led $37M Series C in August 2020.
Both developer video APIs; Mux adds deeper analytics (Mux Data).
Playback quality analytics — rebuffering, startup time, quality scores.
Developer products embedding video — customer logos on mux.com.
2016, San Francisco.
Not publicly disclosed.
Mux is API-first for developers; Brightcove targets enterprise media.
Open-source web video player; Mux founders contributed to it.
a16z-backed developer infrastructure.
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By Venture Capital Tracker

Last updated:

Editorial note: AI tools assisted with research, structure, or drafting. Venture Capital Tracker retains human editorial responsibility for factual accuracy, relevance, and source quality before publication.