Tenable, Inc.

{{Infobox company

| name = Tenable Holdings, Inc.

| logo = File:Tenable, Inc. logo.svg

| former_name = {{nowrap| Tenable Network Security, Inc.}}

| type = Public

| traded_as = {{Unbulleted list |{{NASDAQ|TENB}} |Russell 2000 component}}

| industry = Cybersecurity

| founded = {{Start date and age|2002|09|16}}

| founders = {{Unbulleted list|Ron Gula|Jack Huffard|Renaud Deraison}}

| hq_location_city = Columbia, Maryland

| hq_location_country = U.S.

| key_people = {{Unbulleted list |Steve Vintz (co-CEO, CFO) |Mark Thurmond (co-CEO) |Art Coviello (chairman)}}

| products = Nessus

| revenue = {{increase}} $799 million (2023)

| operating_income = {{increasenegative}} −$52 million (2023)

| net_income = {{increasenegative}} −$78 million (2023)

| assets = {{increase}} $1.61 billion (2023)

| equity = {{increase}} $346 million (2023)

| owner = Amit Yoran (2.9%)

| num_employees = 1,999, (2023)

| website = {{URL|https://tenable.com/}}

| footnotes = {{cite web | url=https://www.sec.gov/ix?doc=/Archives/edgar/data/1660280/000166028024000033/tenb-20231231.htm | title=Tenable Holdings, Inc. 2023 Form 10-K Annual Report | publisher=U.S. Securities and Exchange Commission | date=February 28, 2024}}

}}

{{Infobox software

| name = Nessus Vulnerability Scanner

| logo = Nessus-Professional-FullColor-RGB.svg

| screenshot =

| caption =

| collapsible =

| author =

| developer = Tenable, Inc.

| released = {{start date and age|1998|04}}

| latest release version = 10.8.3

| latest release date = {{release date|2024|09|11}}{{cite web |url=https://docs.tenable.com/release-notes/Content/nessus/2024.htm|title=Nessus 2024 Release Notes|publisher=Tenable Network Security}}

| latest preview version =

| latest preview date =

| programming language =

| operating system = Linux, macOS and Microsoft Windows

| platform =

| size =

| language =

| genre = Vulnerability scanner

| license = Proprietary; GPL (2.2.11 and earlier)

| website = {{URL|https://tenable.com/products/nessus}}

| repo =

}}

Tenable Holdings, Inc. is a cybersecurity company based in Columbia, Maryland. Its vulnerability scanner software Nessus, developed in 1998, is one of the most widely deployed vulnerability assessment solutions in the cybersecurity industry. As of December 31, 2023, the company had approximately 44,000 customers, including 65% of the Fortune 500.

History

Tenable was founded in September 2002 as Tenable Network Security, Inc. by Ron Gula, Jack Huffard, and Renaud Deraison.{{Cite news |url=https://www.reuters.com/article/us-tenablenetwork-managementchanges-idUSKCN0YV2BI/ | title=Cybersecurity software maker Tenable CEO steps down | first1=Narottam | last1=Medhora | first2=Jim | last2=Finkle | work=Reuters | date=June 9, 2016}} In April 1998, at age 17, Deraison had created the Nessus vulnerability scanner software, which he folded into Tenable upon creation of the company. In 2002, Gula, who worked for the National Security Agency in the 1990s, sold a company he founded to Enterasys Networks and was looking to start another company. In 2004, Marcus J. Ranum was hired as chief security officer.{{cite news | url=https://www.infosecurity-magazine.com/opinions/comment-taking-the-ethical-high-road/ | title=Comment: Taking the Ethical High Road | work=InfoSecurity | date=April 19, 2012}} In October 2005, to generate income for the company and to stop empowering competition, Nessus became proprietary software, rather than open-source software via the GNU General Public License.{{Cite news | url=https://www.cnet.com/tech/tech-industry/nessus-security-tool-closes-its-source/ | title=Nessus security tool closes its source | first=Renai | last=LeMay | work=CNET | date=October 7, 2005}}{{Cite news | url=https://www.forbes.com/sites/tonybradley/2013/07/02/in-their-own-words-tenable-network-security-ceo-ron-gula/ | title=In Their Own Words: Tenable Network Security CEO Ron Gula | first=Tony | last=Bradley | work=Forbes | date=July 2, 2013 | url-access=limited}} At that time, the software was forked; OpenVAS became the open-source software version of the program.

In September 2012, Tenable received $50 million in series A round funding from Accel Partners.{{Cite news | url=https://www.accel.com/noteworthy/tenables-ipo | title=Tenable's IPO | first=Ping | last=Li | work=Accel Partners | date=July 26, 2018}}{{Cite news | url=https://techcrunch.com/2012/09/05/tenable-accel-series-a/ | last=Ha | first=Anthony | title=Network Security Company Tenable Raises A $50M Series A From Accel | work=TechCrunch | date=September 5, 2012}} Also that month, the company entered into a partnership to provide cybersecurity services for the United States Intelligence Community, partnering with In-Q-Tel.{{Cite news | url=https://www.washingtonpost.com/business/capitalbusiness/tenable-enters-partnership-with-in-q-tel/2012/09/23/50e82e64-01a9-11e2-b257-e1c2b3548a4a_story.html | title=Tenable enters partnership with In-Q-Tel | first=Thomas | last=Heath | newspaper=The Washington Post | date=September 23, 2012 | url-access=subscription}} In 2015, Tenable received $250 million in a series B round led by Insight Partners.{{Cite news | url=https://www.reuters.com/article/cybersecurity-funding/tenable-raises-250-million-in-record-cyber-funding-round-idUSL1N13505L20151110/ | title=Tenable raises $250 million in record cyber funding round | first=Jim | last=Finkle | work=Reuters | date=November 10, 2015}} In 2016, Gula resigned as CEO, becoming chairman.{{Cite news | url=https://www.reuters.com/article/technology/cybersecurity-software-maker-tenable-ceo-steps-down-idUSKCN0YV2E1/ | title=Cybersecurity software maker Tenable CEO steps down | first1=Narottam | last1=Medhora | first2=Jim | last2=Finkle | work=Reuters | date=June 9, 2016}} Effective January 2017, Amit Yoran became CEO of the company{{Cite news | url=https://washingtontechnology.com/2016/12/tenable-taps-amit-yoran-as-new-chairman-ceo/322099/ | title=Tenable taps Amit Yoran as new chairman, CEO | first=Mark | last=Hoover | work=Washington Technology | date=December 15, 2016}} and later that year, the company was renamed Tenable, Inc. In July 2018, the company became a public company via an initial public offering.{{Cite news | url=https://www.cnbc.com/2018/07/26/tenable-tenb-ipo-stock-starts-trading-on-the-nasdaq.html | last=Fazzini | first=Kate | title=Cybersecurity firm Tenable closes up 31% | work=CNBC | date=July 26, 2018}}

In October 2022, the company launched Tenable One, an exposure management platform.{{Cite news | url=https://www.techtarget.com/searchsecurity/news/252525666/Tenable-shifts-focus-launches-exposure-management-platform | title=Tenable shifts focus, launches exposure management platform | first=Arielle | last=Waldman | work=TechTarget | date=October 4, 2022}} In January 2023, the company launched a venture capital division, with plans to invest up to $25 million.{{cite news | url=https://www.bizjournals.com/baltimore/inno/stories/news/2023/02/17/tenable-venture-capital-fund-cybersecurity.html | title=Tenable launches $25 million venture capital fund | first=Matt | last=Hooke | work=American City Business Journals | date=February 17, 2023}}

In December 2024, Yoran took a medical leave after a cancer diagnosis and CFO Stephen Vintz and COO Mark Thurmond were appointed interim co-CEOs; Yoran died in January 2025. Art Coviello was named chairman.{{Cite news |url=https://www.reuters.com/technology/cybersecurity-firm-tenables-ceo-amit-yoran-dies-after-battle-with-cancer-2025-01-04/ |title=Cybersecurity firm Tenable's CEO Amit Yoran dies after battle with cancer |work=Reuters |date=4 January 2025}}{{Cite press release | url=https://www.globenewswire.com/news-release/2025/01/04/3004249/0/en/Tenable-Announces-the-Passing-of-Chairman-and-CEO-Amit-Yoran.html | title=Tenable Announces the Passing of Chairman and CEO Amit Yoran | publisher=GlobeNewswire | date=January 4, 2025}}

In January 2025, its CEO, Amit Yoran, passed away after a battle with cancer at the age of 54.{{Cite web |date=January 6, 2025 |title=Décès d'Amit Yoran, CEO de Tenable |url=https://www.lemondeinformatique.fr/actualites/lire-deces-d-amit-yoran-ceo-de-tenable-95664.html |website=Le Monde Informatique}} The same month, the company acquires Vulcan Cyber.{{Cite web |date=January 30, 2025 |title=Tenable rachète Vulcan Cyber pour 150 M$ |url=https://www.lemondeinformatique.fr/actualites/lire-tenable-rachete-vulcan-cyber-pour-150-m$-95923.html |website=Le Monde Informatique |language=fr}}

=Acquisitions=

class="wikitable sortable"
scope="col" \| # ! scope="col" \| Year ! scope="col" \| Company ! scope="col" style="width:80px;"\| Price ! scope="col" \| Description of Assets
1 \| {{dts\|2016\|October}} \| FlawCheck \| Undisclosed \| Cybersecurity company{{cite news \|last=HARANAS \|first=MARK \|date=October 26, 2016 \|title=Tenable Network Security Acquires FlawCheck To Boost Security In Docker Containers \|url=https://www.crn.com/news/security/300082608/tenable-network-security-acquires-flawcheck-to-boost-security-in-docker-containers \|work=CRN}}
2 \| {{dts\|2019\|December}} \| Indegy \| $78 million \| Israel-based operational technology company{{Cite news \|last=Eichensehr \|first=Morgan \|date=December 2, 2019 \|title=Columbia's Tenable makes $78 million acquisition \|url=https://www.bizjournals.com/baltimore/news/2019/12/02/columbias-tenable-makes-78-million-acquisition.html \|url-access=subscription \|work=American City Business Journals}}
3 \| {{dts\|2021\|04}} \| Alsid \| $98 million \| Software for finding security issues in Active Directory deployments{{cite press release \|title=Tenable Completes Acquisition of Alsid and Launches Tenable.ad to Secure Active Directory Environments \|date=April 27, 2021 \|publisher=GlobeNewswire \|url=https://www.globenewswire.com/news-release/2021/04/27/2218096/0/en/Tenable-Completes-Acquisition-of-Alsid-and-Launches-Tenable-ad-to-Secure-Active-Directory-Environments.html}}
4 \| {{dts\|2021\|10}} \| Accurics \| $160 million \| cloud-native security for DevOps and security teams{{cite press release \|title=Tenable Completes Acquisition of Accurics \|date=October 4, 2021 \|publisher=GlobeNewswire \|url=https://www.globenewswire.com/news-release/2021/10/04/2308288/0/en/Tenable-Completes-Acquisition-of-Accurics.html}}
5 \| {{dts\|2022\|06}} \| Bit Discovery \| $45 million \| Attack surface management software startup{{cite press release \|title=Tenable Completes Acquisition of Bit Discovery and Announces Tenable.asm for External Attack Surface Management \|date=June 6, 2022 \|publisher=GlobeNewswire \|url=https://www.globenewswire.com/en/news-release/2022/06/06/2456843/0/en/Tenable-Completes-Acquisition-of-Bit-Discovery-and-Announces-Tenable-asm-for-External-Attack-Surface-Management.html}}
6 \| {{dts\|2023\|10}} \| Ermetic \| $240 million in cash and $25 million in restricted stock and RSUs \| Israeli cloud-native application protection startup{{cite press release \|title=Tenable Completes Acquisition of Ermetic \|date=October 2, 2023 \|publisher=GlobeNewswire \|url=https://www.globenewswire.com/en/news-release/2023/10/02/2753197/0/en/Tenable-Completes-Acquisition-of-Ermetic.html}}
7 \| {{dts\|2024\|06}} \| Eureka \|Undisclosed \| Data security posture management{{cite news \|last=ALSPACH \|first=KYLE \|date=June 6, 2024 \|title=Tenable To Acquire Cloud Data Security Startup Eureka \|url=https://www.crn.com/news/security/2024/tenable-to-acquire-cloud-data-security-startup-eureka \|work=CRN}}{{Cite web \|date=2024-06-06 \|title=Tenable acquires Israeli cyber startup Eureka for tens of millions of dollars \|url=https://www.calcalistech.com/ctechnews/article/sjs11041hc \|access-date=2024-10-27 \|website=ctech \|language=en}}
8 \| {{dts\|2025\|01}} \| Vulcan Cyber \| $150 million \| Exposure Risk Management{{Cite web \|date=January 30, 2025 \|title=Tenable rachète Vulcan Cyber pour 150 M$ \|url=https://www.lemondeinformatique.fr/actualites/lire-tenable-rachete-vulcan-cyber-pour-150-m$-95923.html \|website=Le Monde Informatique \|language=fr}}

class="wikitable sortable"

scope="col" | #

! scope="col" | Year

! scope="col" | Company

! scope="col" style="width:80px;"| Price

! scope="col" | Description of Assets

| {{dts|2016|October}}

| FlawCheck

| Undisclosed

| Cybersecurity company{{cite news |last=HARANAS |first=MARK |date=October 26, 2016 |title=Tenable Network Security Acquires FlawCheck To Boost Security In Docker Containers |url=https://www.crn.com/news/security/300082608/tenable-network-security-acquires-flawcheck-to-boost-security-in-docker-containers |work=CRN}}

| {{dts|2019|December}}

| Indegy

| $78 million

| Israel-based operational technology company{{Cite news |last=Eichensehr |first=Morgan |date=December 2, 2019 |title=Columbia's Tenable makes $78 million acquisition |url=https://www.bizjournals.com/baltimore/news/2019/12/02/columbias-tenable-makes-78-million-acquisition.html |url-access=subscription |work=American City Business Journals}}

| {{dts|2021|04}}

| Alsid

| $98 million

| Software for finding security issues in Active Directory deployments{{cite press release |title=Tenable Completes Acquisition of Alsid and Launches Tenable.ad to Secure Active Directory Environments |date=April 27, 2021 |publisher=GlobeNewswire |url=https://www.globenewswire.com/news-release/2021/04/27/2218096/0/en/Tenable-Completes-Acquisition-of-Alsid-and-Launches-Tenable-ad-to-Secure-Active-Directory-Environments.html}}

| {{dts|2021|10}}

| Accurics

| $160 million

| cloud-native security for DevOps and security teams{{cite press release |title=Tenable Completes Acquisition of Accurics |date=October 4, 2021 |publisher=GlobeNewswire |url=https://www.globenewswire.com/news-release/2021/10/04/2308288/0/en/Tenable-Completes-Acquisition-of-Accurics.html}}

| {{dts|2022|06}}

| Bit Discovery

| $45 million

| Attack surface management software startup{{cite press release |title=Tenable Completes Acquisition of Bit Discovery and Announces Tenable.asm for External Attack Surface Management |date=June 6, 2022 |publisher=GlobeNewswire |url=https://www.globenewswire.com/en/news-release/2022/06/06/2456843/0/en/Tenable-Completes-Acquisition-of-Bit-Discovery-and-Announces-Tenable-asm-for-External-Attack-Surface-Management.html}}

| {{dts|2023|10}}

| Ermetic

| $240 million in cash and $25 million in restricted stock and RSUs

| Israeli cloud-native application protection startup{{cite press release |title=Tenable Completes Acquisition of Ermetic |date=October 2, 2023 |publisher=GlobeNewswire |url=https://www.globenewswire.com/en/news-release/2023/10/02/2753197/0/en/Tenable-Completes-Acquisition-of-Ermetic.html}}

| {{dts|2024|06}}

| Eureka

|Undisclosed

| Data security posture management{{cite news |last=ALSPACH |first=KYLE |date=June 6, 2024 |title=Tenable To Acquire Cloud Data Security Startup Eureka |url=https://www.crn.com/news/security/2024/tenable-to-acquire-cloud-data-security-startup-eureka |work=CRN}}{{Cite web |date=2024-06-06 |title=Tenable acquires Israeli cyber startup Eureka for tens of millions of dollars |url=https://www.calcalistech.com/ctechnews/article/sjs11041hc |access-date=2024-10-27 |website=ctech |language=en}}

| {{dts|2025|01}}

| Vulcan Cyber

| $150 million

| Exposure Risk Management{{Cite web |date=January 30, 2025 |title=Tenable rachète Vulcan Cyber pour 150 M$ |url=https://www.lemondeinformatique.fr/actualites/lire-tenable-rachete-vulcan-cyber-pour-150-m$-95923.html |website=Le Monde Informatique |language=fr}}

References

External links

{{Official website|https://www.tenable.com/}}

Category:2002 establishments in Maryland

Category:2018 initial public offerings

Category:American companies established in 2002

Category:Companies based in Columbia, Maryland

Category:Companies listed on the Nasdaq

Category:Computer security software companies

Category:Software companies based in Maryland

Category:Software companies established in 2002

Category:Technology companies of the United States