postgres
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EDB and the art of leaving Oracle.
The hard part of replacing a database is everything built around it. EDB sells a way to carry that history into Postgres - and now wants to keep AI close to the same data.
The Postgres Company That Let AI Write the Signups
It started as the open-source answer to Firebase. Then AI coding agents adopted it as their default backend, and Supabase doubled its valuation to $10.5 billion in eight months.
thorntale
thorntale (YC W24) is a San Francisco software company that built presentation tools for data storytelling. Instead of screenshotting charts from Looker or Snowflake into Google Slides, teams could connect live data sources directly into decks, so charts stayed interactive and up to date - even re-segmentable during a live Q&A. Founded in 2024 by data scientist Dori Wilson with engineers Ellen Hui and John Stimac, the company later pivoted toward an AI-powered presentation editor and shipped a free AI Presentation Review tool before winding the core Presentations product down at the end of 2025.
PlanetScale
PlanetScale is a San Francisco database company that turns the hard parts of running relational databases at scale into a managed cloud service. Founded in 2018 by the creators of Vitess - the MySQL-sharding system built at YouTube and later used by Slack, GitHub and Square - the company sells a serverless database platform known for non-blocking schema changes, branching workflows borrowed from Git, and, more recently, Metal instances built on locally-attached NVMe drives. In 2025 it extended the same platform to Postgres, chasing the fastest-growing part of the database market while still, in its own words, loving MySQL.
DBOS, Inc.
DBOS, Inc. is a San Francisco- and Cambridge-based developer infrastructure company commercializing durable execution technology born from a joint MIT-Stanford research project led by Postgres creator Michael Stonebraker and Apache Spark creator Matei Zaharia. Its flagship open-source library, DBOS Transact, adds crash-proof workflow orchestration and built-in observability to ordinary Python and TypeScript programs by persisting application state in Postgres, so software resumes exactly where it left off after a failure - without a separate workflow server. The company pairs the library with DBOS Conductor and DBOS Cloud for managing and hosting reliable backends, AI agents, and long-running workflows.
ParadeDB
ParadeDB is an open-source PostgreSQL extension that brings Elasticsearch-quality full-text search and analytics directly into Postgres, removing the need to copy data into a separate search engine. Built in Rust on the Tantivy library, its pg_search extension delivers BM25-ranked search, faceting, and columnar analytics while preserving Postgres ACID guarantees and avoiding the brittle ETL pipelines that connect Postgres to Elasticsearch. Founded in 2023 by Philippe Noel and Ming Ying and backed by Y Combinator and Craft Ventures, ParadeDB raised a $12M Series A in 2025 and counts Alibaba, Modern Treasury, and Bilt Rewards among its users.