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HighSide

HighSide

Private
Columbia, MarylandCybersecurityhttps://highside.io/

Last Round

Accelerator

May 2, 2019

Est. Valuation

$600,000

Total Funding Raised

$193,000

Company Overview

HighSide is a cybersecurity company that provides an end-to-end encrypted platform for secure messaging, file sharing, and collaboration for organizations in regulated industries.

Sector

Cybersecurity

Verticals

Zero Trust, Enterprise Communication, Data Protection, Email Security, Compliance & Risk

Business Model

B2G

Customer Profile

Government Contracts, Services & Consulting

AI Layer

Non-AI

Keywords

secure collaboration platformend-to-end encryptionzero trustunified communicationsgovernment contractorGovTechB2Gsecure messagingsecure file sharingHIPAA complianceITAR complianceon-premise deploymentshadow IT preventionemail securityC4ISR support

Historical Pricing

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Caplight Momentum Score

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HighSide Comparables

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HighSide comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
ArmorText
84%
Amazon
78%
Salt Communications
78%

HighSide Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
AcceleratorMay 2, 2019
AcceleratorMar 14, 2017
AcceleratorJun 6, 2016

HighSide Investors

Notable investors and investment history

HighSide investors
InvestorRounds
CyLonAccelerator
The Venture CenterAccelerator

Market signals

Structured signals derived from secondary market and firmographic data.

  • Jan 27, 2026

    Monthly visitors increased 32% MoM, reaching 3.9K.

  • Nov 7, 2025

    Monthly visitors grew 52% MoM.

HighSide Filings

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

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Frequently Asked Questions

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

Is HighSide a public or private company?

HighSide is a private company.

What is the current stock price of HighSide?

HighSide is a private company with no public stock price. No recent secondary market data is available.

How much is HighSide worth (valuation)?

HighSide's valuation is estimated at $600.0K based on funding round data.

Can I buy HighSide stock?

HighSide shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors. Visit https://www.caplight.com to learn more.

When was HighSide's last funding round?

HighSide's most recent funding round was Accelerator on March 14, 2017.

Who are the main investors in HighSide?

Key investors in HighSide include CyLon, The Venture Center.

Will HighSide IPO soon?

No public IPO plans have been announced for HighSide.

How can I track HighSide secondary market activity?

Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor HighSide's secondary market activity and sign up for updates.

Firmographic Details

HeadquartersColumbia, Maryland
Employee Range4
Year Founded2015
Last FundingMay 2, 2019

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