s2.dev

Based in California, US Bandar Systems Inc. doing business as s2. dev founded in 2023 and specializes in providing advanced data streaming solutions designed to enhance real-time collaboration and data management for various sectors, including technology and gaming. Bandar Systems Inc.

develops a durable stream API that transforms traditional logging into a dynamic web resource. The company was Co-founded by Shikhar Bhushan (CEO), Dwarak Govind Parthiban, Stephen Balogh (CTO). In February 2026, Bandar Systems Inc. raised USD 3.

85 million in seed funding led by new investor Accel, with participation from another new investor Uncorrelated Ventures. Returning investor Y Combinator, Grayscale, individual and other unspecified investors also participated in the round.   S2 specializes in providing a durable stream API designed to facilitate unlimited, real-time data streaming. The core product transforms traditional logging into a dynamic web resource, akin to combining the functionalities of Kafka and S3.

This API allows users to append records atomically to the end of streams, ensuring that each record is durably ordered in object storage before confirmation. Targeted use cases include stateful collaborative applications, event sourcing for interactive agents, and broadcasting data to numerous subscribers, while ensuring strong consistency and efficient access controls. S2's customer base includes developers and businesses across various sectors, such as technology and gaming, who are seeking robust solutions for real-time data management and collaborative experiences. The service is positioned in global markets, appealing particularly to enterprise clients in North America and Europe looking to enhance their data streaming capabilities.

S2 generates revenue primarily through subscription-based access to its API, with clients able to create and manage an unlimited number of streams based on their specific needs. The pricing model is structured around usage, allowing customers to pay for the volume of data streamed and the number of concurrent readers, facilitating a scalable approach to data management. Partnerships with businesses seeking to integrate S2’s functionality into their applications enable additional revenue streams through collaborative efforts and integrations. S2's emphasis on providing a fraction of costs associated with data storage and management supports a diverse client portfolio, from startups to established enterprises, who utilize its streaming services to enhance operational efficiency and reliability in their applications.

The company will use the February 2026 funding to speed up product development, expand its managed cloud service to more global regions, and support early enterprise customers.