Open Source Postgres Platform Supabase Raises $150 Million, Valued at $10.65 Billion
Open source Postgres platform Supabase has completed a $150 million financing round, valuing the company at $10.65 billion, and announced the acquisition of database company Turso, which focuses on agent-based load. The acquisition price was not disclosed.
This round was led by Singapore's sovereign fund GIC, with participation from Alphabet's CapitalG, IronArc, and SquarePeg. This comes about four months after the previous round. The June Series F report indicated $500 million raised, with a post-money valuation of approximately $10.5 billion, also led by GIC. The new funds will be used for product development of agent databases and employee liquidity; the founders noted the latter as a condition for retaining engineers.
CEO Paul Copplestone stated that the past year has seen the fastest growth in the company's history. The platform adds over 1 million new users each month and over 4 million new databases, about 70% of which are created by agents or other AI tools. In June, the company reported a 600% year-on-year increase in database numbers, with agents accounting for the majority of new databases. The official blog also noted that over 1 million databases are launched weekly. The paid tier includes login, backup, scheduled data, and vector embedding, and provides MCP servers for external agents to read and modify records.
Turso rewrites SQLite in Rust, allowing a single server to manage millions of databases, loading them on demand and suspending them when idle, thus creating databases as needed without requiring a dedicated machine each time. The existing Turso cloud continues to operate, and the Postgres route remains unchanged. Founder Glauber Costa will lead the agent services, with co-founder Pekka Enberg and the team joining. Public clients include Superhuman, Mastra, Sauna.ai, and CTO.new. Costa stated the goal is to provide customers with up to a billion databases.
Copplestone wrote that agents are generating millions of databases for prototypes, exploration, dashboards, and applications, a scale that requires new database infrastructure. Y Combinator congratulated Copplestone and Ant Wilson, citing over 13 million developers using Supabase as their application backend. A link included in the post points to another report on data center bonds, which is not related to this financing round.
The buyers are GIC and CapitalG, who aim to dominate the agent database infrastructure, while the seller, Supabase, is monetizing employee shares and integrating SQLite's on-demand architecture. The event is driven by coding agents transforming database creation from manual input to programmatic calls. Part of the funding goes into product development, and part is allocated for employee liquidity, not all directed towards capital expenditures. Beneficiaries include backends that can bill each agent as a database; traditional hosting, which allocates a database per human project and cannot handle 4 million new databases monthly, is under pressure. The valuation increased from approximately $10.5 billion to $10.65 billion, a smaller rise than the growth rate in usage.
Source: Public Information
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Supabase has emerged as an open-source alternative to Firebase, selling managed Postgres along with login, storage, and interfaces, rather than a self-developed storage engine. After raising $500 million in June 2026 at a post-money valuation of about $10.5 billion, it secured another $150 million in October, with a valuation of $10.65 billion, still led by GIC and with CapitalG participating again. On the same day, it acquired Turso, placing Glauber Costa in charge of agent services, effectively acknowledging that proprietary Postgres instances cannot keep up with the density of agent-based database creation.
The capital path is split into two parts. One part is for employee liquidity, which the founders publicly noted as a condition for retaining engineers, not just for growth. The other part is for acquiring Turso's Rust-rewritten SQLite: a single machine can handle millions of databases, loading on demand and suspending when idle, with existing clients including Superhuman and Mastra. Postgres will continue to serve human applications, while the SQLite branch will serve agents. The funds are not directed towards building heavy assets like data center bonds but are used to enhance control over "one agent, one database."
This can be compared to MongoDB making document databases cloud-billed and Firebase packaging backends for application developers. Supabase's move is closer to the latter being rewritten by agents: 70% of new databases have been created by agents or AI tools, with over 4 million new databases added monthly. The industry position has shifted from providing backends for developers to offering disposable databases for coding agents. The growth rate in usage far exceeds the valuation increase from $10.5 billion to $10.65 billion.
Structurally, pricing power is shifting from human projects to machine calls. The mechanism is that the marginal cost of creating a database by an agent is close to that of creating a file, while the old architecture charges based on dedicated machines. Whoever can suspend idle databases and instantly wake up active ones will capture this 4 million increment. The open-source engines remain Postgres and SQLite, with the charging points moving to orchestration, isolation, and agent interfaces.
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