[Digital Today AI Reporter] Decentralised social network Bluesky has disclosed that it raised Series B funding and stepped up its growth strategy. Bluesky, which raised $100 million in April 2025, has entered an expansion phase alongside leadership changes, blockchain media outlet The Block Crypto reported on Thursday (local time).

The investment was led by Bain Capital Crypto, with participation from Alumni Ventures, Antos Capital, Bloomberg Beta, Knight Foundation and True Ventures. Bluesky said it has used the funds over the past year to expand its team and build infrastructure.

Since the Series A round in October 2024, Bluesky's user base has surged from 13 million to more than 43 million, and the AT Protocol-based 'Atmosphere' ecosystem is also growing.

Bluesky recently announced leadership changes in which founder Jay Graber (제이 그래버) stepped down as CEO to become chief innovation officer, and True Ventures partner Tony Schneider (토니 슈나이더) became interim CEO. Graber said it was a "decision to focus on building something new". Schneider stressed that "Bluesky's strength is combining user ownership with a scalable social experience".

Through the AT Protocol, Bluesky standardises IDs, social graphs and content structures, and is designed so multiple applications and services, rather than a single company, can interoperate. It features account portability and supports algorithm selection and mix-and-match moderation.

Bluesky likened this to a "social media passport" and said it allows users to maintain their connections and content across different applications. AT Protocol-based apps are currently used more than 1,000 times a week, and monthly software development kit downloads have exceeded 400,000.