About Corero
Corero is a publicly listed company based in Hudson (United States) founded in 1997. DDoS protection is offered to enterprises and service providers. Corero has raised $14.5 million across 6 funding rounds from investors including 3i Group, Juniper Networks and Granite Ventures. Corero has completed 1 acquisition, including Top Layer Networks. Its website corero.com draws about 52 thousand monthly visits. Corero offers products and services including SmartWall ONEâ„¢ CORE, DDoS Protection-as-a-service, and Threat Intelligence. Its focus areas include Enterprise Infrastructure, Cybersecurity, Website Security and DDoS Mitigation. Its competitors include CloudFlare, VeriSign and Neustar; 1 of its 3 listed competitors has raised funding.
Company details
Founded in 1997 and based in Hudson, United States, Corero operates in the cybersecurity sector, focusing on DDoS defense solutions. Protection is extended to enterprises, managed security service providers, hosting providers, and data centers through automated attack detection and mitigation. Network visibility, analytics, and reporting are included in the offerings. Key products encompass the smartWall DDoS threat defense system and Network Forensics for MSSPs.
- Headquarters Hudson, United States
- Stage Public
- SectorsTechnology
- Website category Computers Electronics and Technology · Computer Security
- Website corero.com
- Social LinkedIn X YouTube
- Legal Name Corero Network Security Plc
- Annual Revenue$26.06 M (USD)0.67as on Dec 31, 2025
- Net Profit-$726.46 K (USD)-238.43as on Dec 31, 2025
- EBITDA$1.78 M (USD)-37.8as on Dec 31, 2025
- Total Equity Funding$14.5M (USD)
in 6 rounds
- Latest Funding Round$4.2M (USD), Post-IPO
Dec 2019
- Investors3i Group
& 6 more
- Investments & Acquisitions
Products & Services of Corero
Corero offers a comprehensive portfolio of products and services, including SmartWall ONE™ CORE, DDoS Protection-as-a-service, and Threat Intelligence.
Delivers adaptive defense against DDoS attacks for networks.
Provides scalable DDoS mitigation via cloud-based solutions.
Offers insights on DDoS trends and attack prevention strategies.
Apps and channels of Corero
its YouTube channel Corero Network Security has 282 subscribers and 30 videos.
Videos from Corero
The most watched videos on Corero's YouTube channel, Corero Network Security (282 subscribers). Click a video to play it here.
More on Corero Network Security.
Funding Insights of Corero
Corero has successfully raised a total of $14.5M across 6 strategic funding rounds. The most recent funding activity was a Post-IPO round of $4.2 million completed in December 2019. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding $14.5M
- Total Rounds 6
- Last Round Post-IPO — $4.2M
- First Round $14.5M
(Sep 2003)
- Investors Count 7
All 6 funding rounds of Corero with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Dec 2019 | $4.2M | Post-IPO | – | – | |
| Oct 2018 | $2M | Post-IPO | – | – | |
| Apr 2018 | $9.78M | Debt – Conventional | – | – | – |
| Apr 2018 | $5.63M | Post-IPO | – | – | – |
| Apr 2017 | $6.98M | Post-IPO | – | – | – |
| Sep 2003 | $14.5M | Series B | – | – |
7 investors in total: 7 institutional.
Investors in Corero
Corero has secured backing from 7 investors, including institutional and venture fund investors. Prominent investors backing the company include 3i Group, Juniper Networks and Granite Ventures.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Private equity firm focused on mid-market businesses | 1945 | 3i.com | London, United Kingdom | |
Early-stage US tech companies are invested in by the firm. | granitevc.com | San Francisco, United States | ||
Family office investing in early-stage startups | egancapital.com | Boston, United States | ||
Private equity, real estate, and credit investments are managed globally. | investcorp.com | New York, United States | ||
| wasserco.com | ||||
| westburypartners.com | ||||
Cloud-based enterprise networking and firewall solutions are delivered. | 1996 | juniper.net | Sunnyvale, United States |
Investor details for Corero
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People of Corero
33 people are tracked at Corero (16 in leadership, 2 in board & advisors, 15 in team).
| Name | Role | Group |
|---|---|---|
Joao Melo | VP, Operations & Customer Services | Leadership |
Jack Anderson | Director Security Sales Engineering | Leadership |
Judson Thuerk | National Channel Director | Leadership |
Ej Easton | VP Americas | Leadership |
Dana Kaufman | Executive Director Strategic Accounts | Leadership |
Peter Reidy | Director Strategic Accounts | Leadership |
Steve Mulhearn | VP Global Security Services And Customer Success | Leadership |
Tony Hart | Chief Architect | Leadership |
Marc Blackmer | Chief Marketing Officer | Leadership |
Ashley Stephenson | CTO | Leadership |
Sean Newman | VP, Product Management | Leadership |
Corey Still | Vice President, Strategic Alliances | Leadership |
John (Joao) Melo | VP, OPS, Manu, Reg Comp, Customer Services, Security Services, SOCs, Advance Dev, Recurring Revenue | Leadership |
Ivan Valdes | President and owner | Leadership |
Emma C. | Head of Product Marketing | Leadership |
Chris Goulden | Chief Financial Officer | Leadership |
Peter George | Director | Board & advisors |
Richard Last | Director | Board & advisors |
Brendan Shirley | Account Executive | Team |
Malcolm Dodds | Software Architect | Team |
13 more people are available in the full profile.
Complete people profiles for Corero
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IPO & Listings of Corero
Corero is a publicly listed company on the LSE with ticker symbol CNS in UK, operating in the Technology services sector. As a publicly traded entity, the company provides investors with opportunities to participate in its growth story through equity ownership. The listing enables access to capital markets, enhances corporate visibility, and provides liquidity for shareholders while maintaining transparency through regulatory compliance and regular financial disclosures.
- IPO date09 Oct 2000
- Listed onLSE: CNS
- Listed entityCorero Network Security plc
- Exchange sectorTechnology services
- ISINGB00B54X0432
- Share price13.95 GBX (+16.25% on the day) · 2026-10-14
- Market capitalisation61,459,811.00 GBX
- Price to earnings31.7
- EPS (diluted, trailing year)0.00 GBX
- Volume (last session)1,925,746
Financials of Corero
| Year | Revenue | Net income | EBITDA |
|---|---|---|---|
| 2025 | 19.4M GBP | -539,500 GBP | 1.3M GBP |
| 2024 | 19.2M GBP | 389,730 GBP | 2.1M GBP |
| 2023 | 18.0M GBP | -136,760 GBP | 2.0M GBP |
| 2022 | 16.3M GBP | 449,760 GBP | 1.6M GBP |
| 2021 | 15.2M GBP | 1.1M GBP | 2.6M GBP |
Detailed financial statements for Corero
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Investments & Acquisitions by Corero
Corero has strategically engaged in corporate development activities, having acquired 1 company. Notable acquisitions include Top Layer Networks.
| Company Name | Description | Domain | Location | Founded | Acquired | Amount |
|---|---|---|---|---|---|---|
NIPS solutions for layer 7 network traffic protection are provided. | toplayer.com | Westborough, United States | 1997 | Feb 2011 | •••• |
Complete acquisition details for Corero
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Timeline of Corero
5 dated milestones of Corero across 22 years, from founding to its latest funding, stage changes and deals.
- Founded Corero is founded.
- IPO Lists on the stock exchange (IPO).
- Funding First funding round of $14.5M.
- Acquisition Acquires Top Layer Networks.
- Funding Latest funding round, Post-IPO, of $4.2M.
Competitors of Corero
Corero has 3 listed competitors in our database, 1 of them funded. They include CloudFlare, VeriSign and Neustar.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| cloudflare.com | 2009 | San Francisco, United States | $332.1M | 4,263 | Cloud based website security solutions | |
| verisign.com | 1995 | Mountain View, United States | 844 | DDoS protection and DNS security solutions are delivered globally. | ||
| home.neustar | 1996 | Sterling, United States | Predictive analytics and security solutions are delivered via cloud platform. |
Detailed competitors of Corero
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Web traffic of Corero
The website of Corero (corero.com) receives about 52K visits a month and ranks #640,340 among all websites worldwide, #1,741 in Computer Security.
- Monthly visits52K
▼ 8.1% vs previous month
- Unique visitors24.4K
per month
- Global rank#640,340
among all websites
- Category rank#1,741
Computers Electronics and Technology · Computer Security
- Bounce rate39%
- Pages per visit1.6
- Average visit24 sec
- DevicesDesktop 36% · Mobile 64%
Websites whose visitors overlap most with Corero. Affinity shows how closely the audiences match.
| Website | Domain | Audience affinity | Monthly visits | Global rank | Profile |
|---|---|---|---|---|---|
| arbornetworks.com | 100% | View details | |||
| radware.com | 96% | 301.2K | #167,973 | View details | |
| itsecuritywire.com | 83% | #3,645,245 | View details | ||
| fortinet.com | 83% | 4.9M | #10,057 | View details | |
cstl.com | cstl.com | 81% | #10,553,518 | – | |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
All 39 similar websites and full traffic analytics for Corero
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Top companies in Cybersecurity & Data Protection
3 companies that operate in the same segment as Corero (Cybersecurity & Data Protection) in United States, ranked by their profile score on The Company Check.
| Company | Description | Founded | Location | Total funding | Revenue | Employees |
|---|---|---|---|---|---|---|
Cloud based website security solutions | 2009 | San Francisco, California, United States | USD 332.1 M | USD 1.67 B | 7,330 | |
Cybersecurity and zero trust solutions are delivered for secure networks. | 2007 | San Jose, California, United States | USD 148 M | USD 3.35 B | 9,616 | |
Cloud-based identity management solutions are provided for enterprises. | 2002 | Denver, Colorado, United States | USD 136.89 M | USD 36.94 M | 821 |
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Related news about Corero
Complete news archive for Corero
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Frequently Asked Questions about Corero
Corero was founded in 1997 and raised its 1st funding round 6 years after it was founded.
Corero is headquartered in Hudson, United States.
Corero is a funded company, having raised a total of $14.5M across 6 funding rounds to date. The company's 1st funding round was a Series B of $14.5M, raised on Sep 2003.
Annual revenue of Corero is $26.06M as on Dec 31, 2025.
Founded in 1997 and based in Hudson, United States, Corero operates in the cybersecurity sector, focusing on DDoS defense solutions. Protection is extended to enterprises, managed security service providers, hosting providers, and data centers through automated attack detection and mitigation. Network visibility, analytics, and reporting are included in the offerings. Key products encompass the smartWall DDoS threat defense system and Network Forensics for MSSPs.
Corero's top competitors include CloudFlare, VeriSign and Neustar.
Corero offers SmartWall ONEâ„¢ CORE, DDoS Protection-as-a-service, and Threat Intelligence.
Yes, Corero is publicly traded on LSE under the ticker symbol CNS.
Corero has made 1 acquisition, including Top Layer Networks.
Corero has 7 investors. Key investors include 3i Group, Juniper Networks, Granite Ventures, Egan-Managed Capital, and Investcorp.