On March 20, 2026, Bluesky quietly dropped a disclosure: it raised $100 million in a Series B round. Led by Bain Capital Crypto. With participation from Bloomberg Beta, Knight Foundation, Alumni Ventures, and others. Oh, and this round closed in April 2025 — almost a year ago — and they just got around to telling anyone.
In a media environment where startups announce pre-seed rounds with press releases and fanfare, Bluesky sitting on a $100 million raise for eleven months is genuinely unusual. It is also kind of a flex. They did not need the attention.
What Is Bluesky, Actually?
Bluesky started as a project funded by Twitter's Jack Dorsey with the goal of building a decentralized social network protocol — one where no single company controls the entire platform. It uses a protocol called AT Protocol, which allows different apps and servers to interoperate, similar to how email works across different providers.
After Elon Musk's acquisition of Twitter (now X) in 2022, millions of users who were uncomfortable with the platform's new direction looked for alternatives. Bluesky was the main beneficiary, growing from a small invite-only beta to over 43 million registered users by early 2026. That growth trajectory is what attracted Bain Capital Crypto and the other investors.
Why Bain Capital Crypto Specifically?
The lead investor here is telling. Bain Capital Crypto invests specifically at the intersection of blockchain technology and consumer internet. Bluesky is not a blockchain company in the traditional sense — it does not have a token, does not run on a public chain, and is not trying to be a DeFi protocol. But its architecture is fundamentally decentralized in a way that aligns with crypto investors' broader thesis about the future of internet infrastructure.
The AT Protocol could eventually incorporate token-based incentives or integrate with existing blockchain networks. Whether Bluesky ever goes fully crypto-native is an open question — but having Bain Capital Crypto on the cap table suggests that path is at least on the table.
The 43 Million User Number Is Real
Social networks live and die by user numbers, and 43 million is legitimate. For context, Mastodon — the other major decentralized social network alternative — has never meaningfully broken out of a niche user base. Bluesky has achieved something rare: decentralized architecture with mainstream consumer adoption. That combination is exactly what crypto has been trying to crack for years.
What This Means for the Decentralized Internet
Bluesky's growth matters beyond Bluesky itself. It demonstrates that ordinary users will adopt decentralized platforms if the product is good enough. The lesson is not "put everything on blockchain" — it is "build things people actually want, and decentralize the parts that matter." For the broader Web3 ecosystem still struggling with mainstream adoption, that is a worthwhile case study.
Whether Bluesky eventually integrates crypto functionality, launches a token, or stays purely as a protocol-layer play — it has already proven the market for decentralized social exists at scale. That alone justifies the $100 million bet.