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QuestDB

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QuestDB

The fastest open source time series database

questdb.io
HQ: London, England, United Kingdom; Remote
11-50
B2B

Company research

Public company, workplace, funding, and market signals

Updated Jul 29, 2026

Overview

QuestDB is a London/New York-based open-source time-series database company. It sells a production-hardened Enterprise/BYOC offering for low-latency ingestion and SQL analytics on open formats, aimed at capital markets, aerospace, energy, and fraud/risk workloads.

Primary product

QuestDB open-source time-series database (plus QuestDB Enterprise lakehouse/BYOC)

Founded

2019

Headquarters

London, United Kingdom (8 Devonshire Square), with a New York office at 575 Lexington Avenue

Team size

20-30

Work style

Remote

Industry

Technology, Information and Internet

Sub-industry

Time-series database / database software

Offices

London, United Kingdom (8 Devonshire Square)
New York, NY, United States (575 Lexington Avenue)

Business model

open-source core
paid enterprise software
BYOC / managed enterprise deployment
sales-led contact-for-pricing

Funding

Stage

Series A

Total raised

$14.4M

Latest round

Intel Ignite accelerator · Apr 2024

Intel Ignite accelerator

Apr 2024 · Intel Ignite

Series A

Nov 2021 · 468 Capital

$12M

Seed

Jul 2020 · Episode1 Ventures

$2.3M

People & investors

Leadership

Nicolas Hourcard

Co-founder & CEO

Vlad Ilyushchenko

Co-founder & CTO

Rajiv Bala Subramanian

North America Head of Sales

Investors

468 Capital
7percent Ventures
Alexis Ohanian
Andrey Alekseev
Dan Pinto
Episode1 Ventures
Grace Francisco
Intel Ignite
James Hawkins
Kima Ventures
Michael Li
Mirko Novakovic
Paul Copplestone
Sebastien Pahl
Seedcamp
Sumedh Pathak
Tobi Knaup
Tom Preston-Werner
Uncorrelated Ventures
Y Combinator

Work & culture

Remote-first, open-source-oriented, high-autonomy, and performance-obsessed, with public code review and direct collaboration between engineers and users.

Work style

Remote

Compensation

Public postings emphasize transparent equity bands, flexible hours, 100% remote work, and equipment choice; no public salary band was found.

Benefits

generous equity options
transparent equity bands
flexible working hours
100% remote work
freedom to choose technical equipment
annual team offsite
high autonomy
transparent, collaborative, inclusive culture

Product & market

Pricing

Open-source core with sales-led Enterprise/BYOC pricing; contact sales for demos/trials.

Differentiators

  • —Apache 2.0 open-source core
  • —high-ingest, low-latency time-series SQL
  • —multi-tier hot/cold storage with Parquet/Iceberg lakehouse
  • —native time-series joins such as ASOF, WINDOW, and HORIZON
  • —open formats and low vendor lock-in
  • —self-hosted Enterprise and BYOC options
  • —enterprise HA/RBAC/SSO/audit logs/SLA
  • —built for capital-markets-grade workloads

Technology

Java
Rust
C++
assembly
SQL
Parquet
Iceberg
PostgreSQL wire protocol
REST API
Kafka
Python
Grafana
Pandas
Polars
Spark
Redpanda
Flink
Amazon S3
Azure Blob Storage
Google Cloud Storage

Customers

B3 Exchange
Brevan Howard
HDFC Bank
One Trading
BTG Pactual
Airbus
Laser Digital (Nomura Group)
Aquis Exchange
OKX
Airtel XStream Play
Reflexivity
Beeks Group

Competitors

kdb+
ClickHouse
InfluxDB
TimescaleDB
DuckDB
TDengine
DolphinDB

Scale & contact

Estimated revenue

Approximately $1M-$10M (public third-party estimate; conflicting directories exist)

Estimated monthly visits

105.9K

Traffic estimate as of Jul 2026

hello@questdb.com44-2-080-881-225

Latest news

Brevan Howard Selects QuestDB for Systematic Market Data Platform

GlobeNewswire / QuestDB · Jul 2026

QuestDB announced Brevan Howard is using QuestDB for live and historic market data, systematic trading, and pre-trade analysis at scale.

HDFC Bank uses QuestDB for mule account detection across all major 25+ banking channels

QuestDB blog · Jul 2026

HDFC Bank uses QuestDB in its RTSP platform for real-time mule-account detection and broader customer-level monitoring across 25+ channels.

QuestDB Enterprise 3.3.1: storage policies, custom CA, and finer-grained access control

QuestDB blog · Jun 2026

Enterprise 3.3.1 added storage policy tiering, posting indexes, custom root CA support, and finer-grained access control.

One Trading runs a regulated 24/7 futures exchange on QuestDB

QuestDB blog · May 2026

One Trading described QuestDB Enterprise as a core part of its trading platform, supporting billions of trades and zero-downtime production operation.

QuestDB Wins Best Trading Analytics Platform at TradingTech Insight Awards Europe 2026

QuestDB blog · Mar 2026

QuestDB announced the TradingTech Insight award win, highlighting its trading-analytics positioning and capital-markets credibility.

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