Data infrastructure

QuestDB

Website
Founded 2019Origin source ↗Checked 2026-09-15

Overview

QuestDB is the data platform for mission-critical workloads where data cannot be lost and batch processing is too slow. It runs real-time trading analytics, grid monitoring, fleet telemetry and mission operations at millions of events a second, with years of history kept queryable.

Data stays in open formats like Parquet, and you or any of your agents can query it in plain SQL.

QuestDB started where the problem is hardest, on the electronic trading floor, and built outward into energy, aerospace and robotics. Today 7 of the largest 20 investment banks use it, as do energy companies and makers of aircraft, rockets and satellites. Its engineers work with each customer's team on the whole solution, from the live feed to the archive.

Company description As recorded 2026-11-08
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Data infrastructureInfrastructureDevelopersDevelopersOpen source commercial

Founders & team

Previously QuestDB Limited

Company history As recorded 2026-11-08

Tancrede Collard

Founder

Co-founder and head of product at QuestDB. Before that, I was running algorithmic trading desks at banks and cryptocurrency firms.

LinkedIn X
Founder profile As recorded 2026-09-15
30team members reported
Source-reported As recorded 2026-09-15

Founded 2019 · Source

News & product activity

Sources & observations

Seedcamp · Y Combinator

Profile depthenriched profile
Website observationwebsite reachable
Last website check2026-11-11
Location · source statedLondon, England, United Kingdom
Pricing evidenceA pricing page was detected
Maturity: Not assessed · 4 of 6 areas documented

Source-based assessment · automated evidence rules

The retained text does not establish product availability or customer use.

Maturity is an evidence-based assessment, not a success rating. It may understate the current stage where evidence is limited. Coverage records documented areas, not a complete or independently audited company history.

Stage definitions
independent websitesource corroborationreachable websitedescriptive evidenceclassified market and modelsourced peoplesourced founding yearpricing page observeddocumentation observed
startup.observe Directory coverage · Sources & method