text-to-sql
(5)
Datost
Datost is a Y Combinator (Spring 2026 / P26) startup founded by Maceo Cardinale Kwik and Jason Wang. It launched as 'the proactive AI data analyst' - a Slack-native agent with a semantic layer that scored 75.2% on the BIRD-Interact text-to-SQL benchmark versus 33% for a frontier model alone - and has since become an applied research lab building ED1TH, a 25-gram pair of AI AR smart glasses with no cameras, an in-lens display, and a companion smart ring. Backed by Y Combinator and OpenAI.
Kaelio
Kaelio is a San Francisco startup (Y Combinator, 2025) building the open-source context layer that makes AI data agents reliable. Its core project, ktx, auto-builds a governed layer of business knowledge and executable metric definitions from a company's data stack - Markdown wiki pages plus YAML that declares tables, joins, grain, measures and filters. Instead of an agent writing raw SQL that looks right but returns wrong numbers, it asks ktx for a metric and ktx plans the joins and compiles warehouse SQL. Kaelio ships ktx (Apache 2.0), a hosted ktx Cloud with governance and observability, and a managed Data Agent that answers questions in Slack, web and email with source-backed results.
Promethium
Promethium is a Menlo Park-based enterprise data company that builds an Instant Data Fabric - an agentic platform designed to give business users, analysts, and AI agents trusted, self-service access to data across hundreds of sources without first moving or centralizing it. Its federated query engine, 360 Context Engine, and conversational data-answer agent Mantra translate natural-language questions into governed SQL, metadata, lineage, and visualizations. Founded in 2018 by Kaycee Lai and now led by CEO Prat Moghe, the company has raised about $34.5 million to date, including a $26 million Series A led by Insight Partners.
Teramot
Teramot is an AI-powered data infrastructure company that connects any AI model - Claude, ChatGPT or Gemini - to a company's real data in under an hour, with no technical team required. Its system of specialized AI agents inspects existing databases, warehouses, ERPs, CRMs and APIs, detects data-quality issues, proposes transformations and generates transparent, auditable SQL that produces a production-ready, queryable data layer called a Gold Table. Founded in 2022 (formerly Halley) and led by CEO Bruno Ruyu, the company is based in San Francisco with roots in Cordoba, Argentina.
Vianai Systems, Inc.
Vianai Systems is a Palo Alto-based enterprise AI company founded by Dr. Vishal Sikka - former CEO of Infosys and CTO of SAP - that builds human-centered AI platforms designed to make generative AI genuinely useful at scale. Its flagship product, hila, is a conversational AI analytics platform that lets C-suite executives query enterprise data in plain language, while its broader MLOps platform handles model explainability, drift detection, bias monitoring, and automatic retraining across industries including financial services, manufacturing, aerospace, and defense. Backed by $440 million in funding including investment from SoftBank Vision Fund 2, Vianai partners with TCS, Google Cloud, Cognizant, and Boomi to deploy trusted, responsible AI for the world's largest enterprises.