Brand Intelligence Graph
Company Overview
About QuestDB
QuestDB is a London, United Kingdom-based open-source time-series database — backed by Y Combinator (W20) with $14.4-18 million in total funding including a $12 million Series A in November 2021 from Intel Ignite, Approx.vc, New Forge, and 468 Capital — providing financial services companies, IoT operators, and data infrastructure teams with the fastest time-series database globally (as measured by DB-Engines growth ranking), achieving 15,000+ GitHub stars through column-oriented storage, parallelized vector execution, SIMD CPU instructions, and low-latency SQL queries that enable blazingly fast ingestion and analysis of time-stamped data. Founded in 2019, QuestDB serves Tier 1/2 investment banks, leading hedge funds, national stock exchanges, and major crypto firms where microsecond-level query performance on time-series data is operationally critical.
Business Model & Competitive Advantage
QuestDB's high-performance time-series database addresses the throughput and latency limitations of general-purpose databases for time-stamped workloads: financial trading systems generating millions of tick data points per second, IoT sensor networks collecting readings from thousands of devices, and application metrics platforms ingesting thousands of events per second face a fundamental mismatch with row-oriented databases (PostgreSQL, MySQL) — inserting time-series data at high velocity in a row-oriented store creates write amplification, index contention, and query performance degradation that degrades trading system latency or IoT analytics responsiveness. QuestDB's columnar append-only architecture (optimized for high-rate time-series ingestion by appending new data without touching existing rows, with vector SIMD operations that process thousands of data points per CPU cycle during queries) achieves the ingestion throughput and query performance that financial and IoT time-series workloads require.
Competitive Landscape 2025–2026
In 2025, QuestDB competes in the time-series database, financial data infrastructure, and IoT analytics market with InfluxDB (dominant open-source time-series DB, $350M raised), TimescaleDB (PostgreSQL-based time-series, $55M raised), and ClickHouse (columnar OLAP database, $250M raised at $2B valuation) for financial firm, IoT operator, and data engineering team time-series database and high-frequency data infrastructure adoption. Intel Ignite's and 468 Capital's investments reflect both semiconductor-aligned performance computing conviction and European deep tech VC interest. Y Combinator W20 backing connects QuestDB with the database infrastructure investment community. The DB-Engines fastest-growing time-series database ranking validates developer and enterprise adoption velocity. The 2025 strategy focuses on the financial trading infrastructure market (market data ingestion, backtesting data stores, and real-time analytics), building the cloud-managed QuestDB Cloud offering, and expanding the Kafka and InfluxDB Line Protocol integration for hybrid data pipeline deployments.
Recent Activity
View all →How QWP, QuestDB's binary wire protocol, uses Gorilla delta-of-delta encoding to send a timestamp in as little as one bit, worked through on real ticks.
Foreign Filing filed 2026-09-30
Foreign Filing filed 2026-09-28
A plain-language guide to QuestDB's five time-series joins: ASOF, WINDOW, HORIZON, LT and SPLICE, each with a query that runs on the live demo.
Foreign Filing filed 2026-09-11
DuckLake keeps all its table metadata in a SQL database, not manifest files. Here's what that changes, and how to register QuestDB cold storage Parquet into it.
Foreign Filing filed 2026-09-04
Parquet is a file format and Iceberg is a table format that sits on top of it. Where the line between them falls, why Iceberg adopts Parquet rather than replacing it, and how QuestDB cold storage lines up with an Iceberg lakehouse.
Foreign Filing filed 2026-08-27
Cold storage moves old partitions out to object storage without taking them out of the table. QWP replaces the two-client setup and keeps working when a node goes down. And failover finally stops needing a restart.
QWP is QuestDB's binary, columnar wire protocol. One client streams both ingestion and SQL queries, dataframes and Arrow travel in both directions, and failover is built in.
Foreign Filing filed 2026-08-12
Key Differentiators
Strong Challenger
QuestDB is an established challenger with significant market presence and competitive offerings in Developer Tools.
Frequently Asked Questions
Estimated Visibility Trend (Beta)
Simulated 8-week rolling score
Based on estimated brand signals. Historical tracking coming soon.
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