Data infrastructure startup S2.dev raises $3.85 Mn led by Accel
- ByStartupStory | February 25, 2026
Data infrastructure startup S2.dev has raised $3.85 million in a funding round led by Accel along with participation from Uncorrelated Ventures and others.
The startup was earlier backed by Y Combinator and was selected in the Fall 2025 batch. The company has raised a total of $5.5 million till to date.
The fresh funds will be utilized to accelerate product development, expand its managed cloud service to more regions globally, and support early enterprise customers, S2.dev said in a press release.
Co-founded in 2024 by Shikhar Bhushan, Stephen Balogh, and Dwarak Govind Parthiban, S2.dev provides a serverless datastore for real-time, streaming data, specifically designed to power collaborative, agent-based, and multiplayer applications. The platform offers durable, auto-scaling streams accessible via REST, combining object storage persistence with low-latency performance for developers.
S.dev’s core product is a serverless streaming database platform that allows developers to manage stateful data and real-time, fast-moving data publishing without managing infrastructure. The startup features unlimited streams that creates on-demand streams for modeling domain data, which can be appended to, pulled from, and fenced.
According to S.dev, its product is all around durable streams and aims to make streams a cloud storage primitive. In artificial intelligence (AI) applications, these streams can include token output or messages passed between multiple agents.
Currently, the market is dominated by tools like Apache Kafka and cloud services such as Amazon Kinesis that companies use to handle real-time data, including clicks, payments, tracking events, and app notifications.
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