NEWCaplight raises a $16M Series A, led by BlackRock and Fin Capital →
Skip to main content
Caplight Logo









PubNub

PubNub

Private
San Francisco, CaliforniaTelecommunications & Networkinghttps://www.pubnub.com/

Last Round

Series E

Nov 3, 2021

Est. Valuation

$155M

Total Funding Raised

$134.5M

Momentum

Top 25%

of companies Caplight tracks

Company Overview

PubNub is a cloud infrastructure company that provides a real-time communication platform and APIs for building, scaling, and managing interactive applications.

Sector

Telecommunications & Networking

Verticals

Cloud Communications, Platform-as-a-Service, Live Streaming, Data Integration, Serverless Computing

Business Model

B2B2C

Customer Profile

Usage-Based SaaS, Freemium, Services & Consulting

AI Layer

Non-AI

Keywords

real-time messagingpub/sub messagingin-app chatreal-time infrastructurechat APIrealtime APIdata stream networkdeveloper platformIoT communicationuser presenceserverless functionsmobile push notificationslocation trackingPaaSusage-based billingmonthly active usersMAU

Historical Pricing

Historical view of private secondary pricing and transaction trends.

Unlock Pricing Charts

Sign up to view complete historical pricing and secondary transactions.

Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

View Momentum History

Track how buyer interest and sentiment changes over time.

PubNub Comparables

Compare PubNub with similar companies based on industry and business-model similarity.

PubNub comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Ably
88%
Bird
83%
Stream
77%

PubNub Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series ENov 3, 2021
Series DApr 9, 2019
Growth EquitySep 12, 2016
Series COct 15, 2015
Series BSep 17, 2013
Series A
Mar 20, 2012

Key People

Founding team and executive leadership

Stephen Blum

CTO

Executive Team

PubNub Investors

Notable investors and investment history

PubNub investors
InvestorRounds
Hewlett Packard PathfinderSeries E, Series D
BlackBerry Partners FundSeries D, Series B, Series A
Clearvision VenturesSeries C
Scale Venture PartnersSeries D, Series C, Series E, Series B
Relay VenturesSeries D, Series C, Series B, Series A
Sapphire VenturesSeries D, Series E, Series C
Sound VenturesSeries C

Market signals

Structured signals derived from secondary market and firmographic data.

  • Jan 6, 2026

    Added Ayoa Whiteboard, a technology/SaaS startup, as a customer.

  • Jan 1, 2026

    Hiring to build production features for 'Illuminate', an AI decisioning platform.

PubNub Filings

SEC and related filings with document metadata.

Data table
TypedDateAmount OfferedAmount SoldFillingPagesDownload
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation

PubNub Filings

SEC and related filings with document metadata.

Frequently Asked Questions

Common questions about PubNub's valuation, stock price, and market status.

Firmographic Details

HeadquartersSan Francisco, California
Employee Range123
Year Founded2010
Last FundingNov 3, 2021

Institutional Data Access

Join leading institutional investors using Caplight to access private market data, discover pricing, and execute secondary block trades.

Requires verified institutional or accredited status.