When was Zix founded?

Zix was founded in 1988 and raised its 1st funding round 31 years after it was founded.

Where is Zix located?

Zix is headquartered in Dallas, United States.

How many employees does Zix have?

As of Jun 30, 2026, the latest employee count at Zix is 240.

Is Zix a funded company?

Zix is a funded company, having raised an undisclosed amount across 2 funding rounds to date. The company's 1st funding round was a $***** Post IPO round, raised on Feb 20, 2019.

When was the latest funding round of Zix?

Zix's latest funding was a $***** Conventional Debt round on Feb 21, 2019, with participation from 0 investor.

Where does Zix rank among its competitors?

Zix ranks 40th amongst 461 active competitors, of which 26 are funded. It stands 11th in terms of total funding among its competitors. The most recent competitor to raise funding was Virtru, which secured $50M in Jul, 2025.

Who are the top competitors of Zix?

Zix's top competitors include Proton, Cofense and Tessian. Among them, Virtru secured the most recent funding round in July, 2025.

Zix - 2026 Company Profile, Team, Funding & Competitors

Q: Is Zix an acquired company?

Zix got acquired by OpenText on Nov 08, 2021.

Zix is an acquired company based in Dallas (United States), founded in 1988. It operates as a Cloud-based e-mail security solutions provider. Zix has raised an undisclosed amount in funding. The company has 461 active competitors, including 26 funded and 51 that have exited. Its top competitors include companies like Proton, Cofense and Tessian.

Company Details

Zix is a cloud-based e-mail security solutions provider. The features of the product include e-mail encryption, e-mail threat prevention, secure file sharing, message privacy, reporting & integration, communication security, cloud migration, defends against breaches & attacks, data loss prevention, etc. It provides solutions to industries such as healthcare, government, real estate, finance, etc.

Website: zix.com
Social
Phone Number: +1 **********
Part Of

Key Metrics

Founded Year

1988

Location

Dallas, United States

Stage

Acquired

Latest Funding Round

Conventional Debt, Feb 21, 2019, $*****

Investors

Ranger Investments & 1 more

Ranked

40^th among 461 active competitors

Employee Count

240 as on Jun 30, 2026

Investment & Acquisitions

Cirius & 4 more

Similar Companies

Mesh & 140 more

Exit Details

Acquired by OpenText (Nov 08, 2021)

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Zix got acquired by OpenText on Nov 08, 2021 at an acquisition amount of $*****.

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Zix has raised funding over 2 rounds. Its first funding round was on Feb 20, 2019. Zix has 2 institutional investors.

Here is the list of recent funding rounds of Zix:

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Feb 21, 2019	4908032	Conventional Debt	1140024	3640009	9922674	5010842
Feb 20, 2019	5069052	Post IPO	2147989	2882997	9563626	True Wind

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Zix's employee count trend

Zix has 240 employees as of Jun 26. Here is Zix's employee count trend over the years:

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Top competitors of Zix include Proton, Cofense and Tessian. Here is the list of Top 10 competitors of Zix, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	Proton 2014, Geneva (Switzerland), Seed	Provider of encrypted email, calendar, VPN, password management, and cloud services	$2M	CRV, Fongit & 3 others	77/100
2nd	Cofense 2008, Leesburg (United States), Acquired	Provider of an AI-powered platform for phishing detection and remediation	$58M	Paladin Capital, Adams Street Partners & 4 others	69/100
3rd	Tessian 2013, Boston (United States), Acquired	Provider of cybersecurity software for email collaboration and data protection	$182M	Accel, Balderton Capital & 40 others	67/100
4th	Egress 2007, London (United Kingdom), Acquired	Provider of cloud email security software for preventing data breaches	$68.9M	FTV Capital, AlbionVC & 12 others	66/100
5th	Virtru 2012, Washington, DC (United States), Series D	Data security platform for email, files, and apps, powered by OpenTDF	$191M	Iconiq Capital, Bessemer Venture Partners ... & 16 others	65/100
6th	Material 2016, Redwood City (United States), Series C	Provider of security solutions for Google Workspace and Microsoft 365	$166M	Andreessen Horowitz, Founders Fund & 13 others	63/100
7th	EtherMail 2021, Schaan (Liechtenstein), Seed	Offering email for web 3 solutions	$7.3M	Draper, Fabric Ventures & 4 others	61/100
8th	Arcode 2008, Bethesda (United States), Acquired	E-mail security solutions provider	$31.6M	Insight Partners, ClearSky & 5 others	60/100
9th	BombBomb 2006, Colorado Springs (United States), Series A	Platform to create, send and track video emails	$3.43M	Lighter Capital, REACH & 1 others	60/100
10th	Hornetsecurity 2007, Hannover (Germany), Acquired	Provider of Microsoft 365 security, backup, governance, risk, and compliance	-	HTGF, Neuhaus Partners & 8 others	59/100
40th	Zix 1988, Dallas (United States), Acquired	Cloud-based e-mail security solutions provider	-	Ranger Investments, True Wind	41/100

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Zix has not made any investments yet. Zix has made 5 acquisitions.

Here is the list of latest three $acquisitions:

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Date of Investment/Acquisition	Type	Company Name	Founded Year	Location
May 08, 2019	Acquisition	Cirius	2006	Vancouver (Canada)
May 08, 2019	Acquisition	DeliverySlip	2006	Seattle (United States)
Jan 15, 2019	Acquisition	AppRiver	2002	Gulf Breeze (United States)