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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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PubNub | Star Stack

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PubNub

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PubNub

Name: PubNub
Author: Star Stack

Global real-time messaging platform with ultra-low latency APIs

Visit Website GitHub

About

PubNub provides a cloud-based infrastructure for building applications with real-time data delivery and ultra-low latency. It offers SDKs and APIs for chat, presence, and decision intelligence across industries like healthcare, gaming, and logistics.

Resources

No migration guide is currently listed for this service.

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Sovereignty Score

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

out of 100

Data completeness50% (Partial)

Jurisdictional(56%)

Significant foreign legal exposure risk

Jurisdiction: United States (EU adequacy decision)
No foreign parent provider
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

Mixed ownership (<30% non-EU)
Series C+ (late stage)
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

PubNub Inc.

Quick Facts

Legal jurisdiction: United States
Headquarters: United States
Ownership: Mixed (<30% Non-EU)
Deployment: SaaS

Evidence and freshness

Verification date unknown.

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

hqCountry: company registry
Retrieved 30/01/2026, confidence 95%.
Read evidence excerpt
PubNub Inc. headquartered in San Francisco, California, 50 Francisco Street, Suite 100
hqCountry: company registry
Retrieved 30/01/2026, confidence 95%.
Read evidence excerpt
PubNub Inc. headquartered in San Francisco, California, 50 Francisco Street, Suite 100