Bluesky Raises $100M Series B — And It Is Just Getting Started
Bluesky just secured $100 million in Series B funding, led by Bain Capital Crypto, as the social network crosses 43 million users and enters a pivotal new chapter. The round was actually closed back in April 2025 but was only disclosed this week — strategically timed right after a major leadership shake-up that has the tech world watching closely.
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A Funding Round Worth the Wait
Not every company announces its funding the moment the ink dries. Bluesky waited nearly a full year to reveal this round, and the timing was anything but accidental. The disclosure came just days after founder and longtime CEO Jay Graber announced she was stepping down from the top job, transitioning instead to a newly created chief innovation officer role.
The $100 million round was led by Bain Capital Crypto and also drew participation from existing investors Alumni Ventures and True Ventures. New backers including Anthos Capital, Bloomberg Beta, and Knight Foundation also joined the round. Bluesky did not reveal its updated valuation, but the roster of investors signals serious confidence in where this platform is headed.
This Series B follows the company's $15 million Series A, led by Blockchain Capital and closed in 2024, and an $8 million seed round from Neo and other angel investors the year before that. Each funding milestone has arrived alongside meaningful growth — and this one is no different.
From 13 Million to 43 Million Users — Fast
The numbers tell a compelling story. Since closing its Series A, Bluesky has grown from 13 million to over 43 million global users. That is more than triple the user base in roughly a year, driven in large part by a wave of people seeking an alternative to increasingly centralized and algorithmically aggressive social platforms.
This growth was not manufactured through viral stunts or paid acquisition campaigns. It was fueled by genuine community migration — people who wanted more control over their feeds, their data, and their online experience. Bluesky's decentralized model, built on the open AT Protocol (ATProto), gave them exactly that.
The platform's appeal goes beyond just the numbers. It has attracted communities that have historically been underserved or mistreated by mainstream social media. Blacksky, for example, has emerged as a dedicated space for Black social media users within the Bluesky ecosystem — a sign that real communities are finding real homes here.
What Is ATProto — And Why Does It Matter?
If you want to understand why Bluesky has attracted this level of investment, you need to understand the AT Protocol. ATProto is the open, decentralized technology that powers Bluesky's app and, increasingly, an entire ecosystem of apps and services known as the Atmosphere.
The Atmosphere now holds around 20 billion public records — posts, likes, comments, and interactions across the network. That scale is remarkable for a protocol that is still relatively young, and it is growing fast. Developer tools for ATProto are being downloaded over 400,000 times every month, and more than a thousand apps built on the protocol are actively used every week.
This is not just a social network. It is an open infrastructure play — one that positions Bluesky less like a single app and more like the foundation for a new era of social media.
A Growing Ecosystem of Apps Built on ATProto
One of the most exciting aspects of Bluesky's rise is the ecosystem forming around it. The AT Protocol enables apps to interoperate with one another, meaning that developers can build entirely new products that tap into the same social graph and data layer.
Some of those apps are startups, like Skylight, a video-focused app, and Flashes, which is positioning itself as an open alternative to Instagram. Others come from established names — Flipboard, the veteran content aggregator, has been quietly building Surf, an open social app that runs on ATProto.
Together, these apps are beginning to resemble something genuinely new: a federated but user-friendly social web where you are not locked into one platform's rules, one company's algorithm, or one executive's vision for what the internet should look like.
The Crypto Connection — Should Users Be Concerned?
The involvement of Bain Capital Crypto and the earlier backing from Blockchain Capital will raise eyebrows for some Bluesky users, particularly those who joined the platform precisely because it felt different from the speculative, hype-driven world of Web3.
To be clear: Bluesky is not built on blockchain technology, and it has not integrated cryptocurrency into its product in any way. The crypto investors are drawn here by something else entirely — the decentralized architecture of ATProto, which echoes the philosophical underpinnings of Web3 without the financial speculation.
Graber herself acknowledged this tension in a past interview, noting that the term Web3 had become too closely associated with cryptocurrency to accurately describe what Bluesky is doing. Her framing was more expansive: evolving social media from centralized platforms into something open and distributed. That vision — not token speculation — is what has attracted investors from the crypto space.
Her earlier work with the privacy-focused cryptocurrency Zcash did help shape her thinking about decentralized systems. But Bluesky's architecture is driven by principles around user autonomy and open standards, not financial instruments.
A CEO Transition at the Best Possible Moment
Jay Graber stepping down as CEO is a significant moment, but context matters. This is not a crisis — it is a deliberate evolution. Graber has moved into the chief innovation officer role because, by her own account, she wants to return to building. The company, meanwhile, is now in a position where it needs a different kind of leadership: someone focused on commercial scale, revenue strategy, and enterprise growth.
Raising $100 million gives Bluesky the runway to find that leader without desperation, and the credibility to attract serious candidates. The funding has also been actively deployed — the company has grown its team and continued to develop both the Bluesky app and the broader ATProto infrastructure.
What Graber built is no longer a scrappy experiment. It is a platform with tens of millions of users, a thriving developer community, and a funding base that now spans venture capital, crypto-native firms, media organizations, and philanthropy. Whoever steps into the CEO seat next will inherit something genuinely powerful.
Why Bluesky's Moment Is Now
The social media landscape in 2026 looks very different from even two years ago. Trust in large centralized platforms has continued to erode. Creators are looking for platforms that do not hold their audiences hostage. Developers want to build on open infrastructure rather than at the mercy of API shutdowns and policy reversals.
Bluesky sits at the intersection of all of those shifts. Its timing, its technology, and now its funding are aligned in a way that does not happen often in the tech industry. The $100 million Series B is not just a capital infusion — it is a signal that the open social web is no longer a niche idea. It is becoming the next chapter of how the internet connects people.
The question is no longer whether Bluesky can survive. The question is how far it can go — and who will lead it there.
