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Bolster

Bolster

Private
Los Altos, CaliforniaCybersecurityhttps://bolster.com

Last Round

Series B

Jan 11, 2022

Total Funding Raised

$17M

Company Overview

Bolster operates in Cybersecurity and is based in Los Altos, California. Its latest recorded funding round was a Series B round in January 2022.

Bolster, Inc. is a cybersecurity company that provides an AI-powered digital risk protection platform for detecting and remediating phishing, fraud, and brand impersonation threats.

Sector

Cybersecurity

Verticals

Threat Intelligence, Application Security, Compliance & Risk, Email Security

Business Model

B2B

Customer Profile

Subscription SaaS

AI Layer

Application

Historical Pricing

Historical view of private secondary pricing and transaction trends.

Pricing history

Caplight clients see full MarketPrice™ history and secondary transactions.

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Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

Momentum history

Caplight clients track how buyer interest and sentiment change over time.

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Bolster Comparables

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

Bolster comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Allure Security
87%
ZeroFox
86%
Doppel
85%
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Bolster Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series BJan 11, 2022
SeedSep 9, 2020
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Key People

Founding team and executive leadership

Matt Blumberg

Co-Founder and Chairman, Founder and CEO

Founding Team

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Bolster Investors

Notable investors and investment history

Bolster investors
InvestorRounds
FoundrySeries B
High Alpha CapitalSeed
Union Square VenturesSeries B, Seed
High AlphaSeries B
Capital FactorySeries B
Costanoa VenturesSeries B, Seed
Foundry GroupSeries B
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Market signals

Structured signals derived from secondary market and firmographic data.

  • Mar 17, 2025

    Michael H. Dunne joins as Executive Vice President, Finance, and Chief Financial Officer.

  • Jan 11, 2022

    $11M round led by Foundry.

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Bolster Filings

Explore SEC and related filing metadata, where available.

Bolster filings preview — column headings only; records require access
TypeDateAmount OfferedAmount SoldFilingPagesDownload

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Frequently Asked Questions

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

Is Bolster a public or private company?

Bolster is a private company.

What is the current stock price of Bolster?

Bolster is a private company, so its shares have no public market price. Caplight tracks Bolster's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.

How much is Bolster worth (valuation)?

Valuation information for Bolster is not publicly available.

Can I buy Bolster stock?

Bolster shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.

When was Bolster's last funding round?

Bolster's most recent funding round was Series B on January 11, 2022.

Who are the main investors in Bolster?

Key investors in Bolster include Foundry, Union Square Ventures, Foundry Group.

Will Bolster IPO soon?

No public IPO plans have been announced for Bolster.

How can I track Bolster secondary market activity?

Caplight tracks bids, offers, and trades in Bolster's shares on secondary markets.

Firmographic Details

HeadquartersLos Altos, California
Employee Range13
Year Founded2017
Last FundingJan 11, 2022

Institutional Data Access

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