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Disclaimer: Star Stack provides information about European technology services for educational purposes only. Service listings, sovereignty assessments, and recommendations do not constitute legal, financial, or professional advice. We encourage you to verify all information independently and consult appropriate professionals before making technology decisions. Star Stack is not affiliated with any listed services unless explicitly stated.

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Kdb+ | Star Stack

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Kdb+

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Kdb+

Name: Kdb+
Author: Star Stack

World's fastest time-series database engine with the q language

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About

kdb+ is a high-performance time-series database engine that uses the proprietary q query language for real-time analytics on massive streaming data. It is primarily used by financial services firms for quantitative research and backtesting, as well as by defense and IoT sectors for sensor monitoring.

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Sovereignty Score

Recorded assessment version: jurisdiction-ownership-2026-10-04

out of 100

Data completeness53% (Partial)

Jurisdictional(56%)

Significant foreign legal exposure risk

Jurisdiction: United States (EU adequacy decision)
Parent provider: FD Technologies plc (United Kingdom)
Five Eyes intelligence alliance exposure
US CLOUD Act applies (US can compel data access regardless of storage location)

Ownership(44%)

Significant foreign ownership or control risk

Public company (EU exchange)
Funding stage unknown (assumed late-stage VC) (Submit verified data to improve this score)
Acquisition risk unknown (assumed high) (Submit verified data to improve this score)

More dimensions coming soon

GovernanceComing soon

PortabilityComing soon

LicenseComing soon

CommunityComing soon

How missing data affects scores Submit data corrections

Provider

KX Systems, Inc.

Quick Facts

Legal jurisdiction: United States
Headquarters: United States
Ownership: Public (EU)

Evidence and freshness

Verification date unknown. This assessment needs review.

A score is an assessment of recorded facts. Missing evidence and unresolved ownership can affect the result.

Ownership: other
Statement 12/02/2026, confidence 90%.
Read evidence notes
From enrichment pipeline 2026-02-06_03-32-59_c6_v20-validation