QuestDB
QuestDB is the highest-performance open-source time series database, designed for financial data, IoT, and observability workloads. It queries billions of rows per second using a columnar storage model and SQL with time extensions. Used by Airbus, Aquis Exchange, and Fortune 500 companies for real-time analytics.
- Location
- London, UK
- Raised
- $15M
- Stage
- Series A
- Founded
- 2014
- Category
- Dev Tools
- Funding
- VC-backed
- Team
- 11–50
Funding figures as of Jul 2025 · not independently verified
Founders of QuestDB
- Vlad Ilyushchenko
- Nicolas Hourcard
Investors backing QuestDB
- Sapphire Ventures
- Loral Ventures
Frequently asked questions
What does QuestDB do?
QuestDB is the highest-performance open-source time series database, designed for financial data, IoT, and observability workloads. It queries billions of rows per second using a columnar storage model and SQL with time extensions. Used by Airbus, Aquis Exchange, and Fortune 500 companies for real-time analytics.
Where is QuestDB based?
QuestDB is based in London, UK.
When was QuestDB founded?
QuestDB was founded in 2014.
How much has QuestDB raised?
QuestDB has raised $15M in their Series A round as of Jul 2025.
Who founded QuestDB?
QuestDB was founded by Vlad Ilyushchenko, Nicolas Hourcard.
Who has invested in QuestDB?
QuestDB is backed by Sapphire Ventures, Loral Ventures.
How QuestDB would pitch themselves
○ Auto-generated01Target customer
Software engineers + DevOps teams shipping production systems — from indie hackers to enterprise platform teams at scale.
02Problem they solve
QuestDB is the highest-performance open-source time series database, designed for financial data, IoT, and observability workloads. It queries billions of rows per second using a columnar storage model and SQL with time… The category has historically been served by tools that miss the modern workflow this product is built around.
03Key differentiator
QuestDB differentiates on fast open-source time series database. Backed by Sapphire Ventures + Loral Ventures, $15M raised — the company has resources + validation to compound this thesis. Founded by Vlad Ilyushchenko + team.
04Go-to-market strategy
Series-A scaling stage — building outbound sales motion, hiring first AEs, layering on customer success. Mix of PLG (where the product allows) + direct sales for higher-ACV deals.