Bluesky
9 known investors
Bluesky is an open, decentralized social network built on the AT Protocol (atproto), offering users customizable feeds, moderation tools, and a portable identity across platforms. It provides open-source infrastructure and public APIs for developers to build clients, bots, custom feeds, and other applications on top of the network.
Also known as Bluesky Social · bsky.app
Investors · 9
Also in the syndicate · 1
Funding
SEC filings, press & company announcements$100M disclosed across 1 of 3 rounds · 2024–2026
- $100MSeries BMar 2026 · 2 sources
Bain Capital Crypto (lead), Blockchain Capital (lead), Alumni Ventures, Anthos Capital, Bloomberg Beta, Knight Foundation, True Ventures
Source ↗ - Undisclosed amountSeries AOct 2024
Blockchain Capital (lead), Alumni Ventures, SevenX, True Ventures
Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Company profile
researched Aug 2026Bluesky operates an open social network and a consumer social media application available in the browser and via native apps on the Apple App Store and Google Play Store. The service is positioned around user choice: subscribers can select among multiple feeds — from friend-group timelines to news feeds to algorithmic feeds that adapt to a user's interests — rather than a single platform-controlled ranking. Content control features include moderation lists and content filters, with the company stating that in the future people and organizations will be able to use open tools to contribute more directly to moderation.
Underneath the app, Bluesky builds open-source infrastructure for the "social internet," comparing its approach to open protocols such as HTTP. A single account provides both access to the consumer network and a shared identity usable across the wider open network built on the AT Protocol. The company publishes developer documentation, public APIs, a public firehose of messages and events, GitHub discussions, and a starter kit for creating custom feed algorithms, and offers "Auth with Bluesky" so third-party developers can launch against the existing user base. Bluesky commissioned a technical paper with researcher Martin Kleppmann, author of Designing Data-Intensive Applications and a technical advisor to the company, describing the network's technical underpinnings.
Bluesky is organized as a Public Benefit Corporation and states a commitment that the social network can never be bought by a single individual or organization.
Business model
Bluesky provides a free-to-join consumer social networking application alongside open-source protocol infrastructure and public APIs used by third-party developers. The source material does not describe how the company charges for its products.
Traction
The company describes a user base of millions across its network and cites a growing developer ecosystem building bots, clients and custom feeds on its public APIs, with several named third-party projects live on the protocol.
▸Full profile — market position, technology, go-to-market
Market position
Bluesky presents itself as an alternative to corporate-controlled social media, with an ecosystem of independent projects built on the AT Protocol including Graze (custom feed design), Tangled (social git platform), Skylight (portable content and audience across atproto platforms), Leaflet.pub (account-free collaborative documents and blogs), Streamplace/Stream.place (open-source video streaming layer) and Germ Network (privacy-first encrypted messenger with atproto integration). Automattic CEO Matt Mullenweg is quoted saying Bluesky demonstrates that Twitter-like social networking problems can be solved in a distributed fashion with a clean user experience.
Bluesky frames itself as an open network rather than a closed platform: portable, shared identity across the atproto ecosystem, user-selectable feeds and algorithms, user-controlled moderation tooling, open-source infrastructure, and a structural commitment (as a Public Benefit Corporation) that the network cannot be acquired by a single individual or organization.
Technology
The network is built on the AT Protocol, an open protocol for social communication designed for interoperability comparable to the web itself. Bluesky publishes open-source infrastructure, developer documentation, public APIs, a public event and message firehose, an authentication mechanism ("Auth with Bluesky"), and a starter kit for building custom feed algorithms. A technical paper written with technical advisor Martin Kleppmann details the architecture.
Go-to-market
Distribution is via the web app and mobile apps on the App Store and Google Play, complemented by an ecosystem strategy: public APIs, GitHub developer discussions, and third-party projects that extend the network and can authenticate against Bluesky accounts.
Consumer social media users seeking control over their timelines and moderation experience; creators seeking independence from platforms; and developers building clients, bots, custom feeds and other applications on the open network.
Compiled by commissioned research from 1 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
In the news
▸Research sources · 1
primary sources listed
- Blueskyblueskyweb.xyz · web
1 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Bluesky do?
- Bluesky is an open, decentralized social network built on the AT Protocol, with customizable feeds and portable identity.
- Who are Bluesky's investors?
- Bluesky's investors include Very Serious Ventures, Alumni Ventures, Anthos Capital, Bain Capital Crypto, Bain Capital Ventures, Blockchain Capital, Bloomberg Beta, True Ventures.
- How much funding has Bluesky raised?
- Bluesky has disclosed $100M raised across 1 of its 3 known rounds.