About Top Layer Networks
Top Layer Networks is a Technology company based in Westborough (United States) founded in 1997, and was acquired by Corero in February 2011. NIPS solutions for layer 7 network traffic protection are provided. Top Layer Networks has raised $42.5 million across 2 funding rounds from investors including Texas Instruments, Corero and 3i Group. The company has 26 employees. The company was acqui-hired. Its focus areas include Enterprise Infrastructure, Cybersecurity, Network Security and NIPS. Its legal entity is CORERO NETWORK SECURITY, INC. Its competitors include Extreme Networks, Sourcefire and Blue Hexagon; 2 of its 3 listed competitors have raised funding.
Company details
Top Layer Security provided of Network Intrusion Prevention Systems (NIPS) and introduced DDoS defense to detect and block application layer (layer 7) distributed denial of service cyber-attacks in 2011. Company developed hardware appliances for high-performance network security and traffic management issues and AppSwitch to extract and use detailed information from all 7 layers to identify and control both HTTP-based and non HTTP-based traffic. Acquired by Corero Plc and merged company renamed to Corero Network Security.
- Headquarters Westborough, United States
- Employees 26
- Stage Acquired
- SectorsTechnology
- Website toplayer.com
- Acquired by Corero (Feb 2011)
- Legal Name Corero Network Security, Inc.
- Total Equity Funding$42.5M (USD)
in 2 rounds
- Latest Funding Round$14.5M (USD), Series G
Sep 2003
- InvestorsTexas Instruments
& 7 more
- Employee Count26
- Acquired byCorero
(Feb 2011)
Funding Insights of Top Layer Networks
Top Layer Networks has successfully raised a total of $42.5M across 2 strategic funding rounds. The most recent funding activity was a Series G round of $14.5 million completed in September 2003. 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 $42.5M
- Total Rounds 2
- Last Round Series G — $14.5M
- First Round $28M
(Aug 2002)
- Investors Count 7
All 2 funding rounds of Top Layer Networks 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 |
|---|---|---|---|---|---|
| Sep 2003 | $14.5M | Series G | – | – | |
| Aug 2002 | $28M | Series F | – | 3i Group |
8 investors in total: 8 institutional.
Investors in Top Layer Networks
Top Layer Networks has secured backing from 8 investors, including venture fund and institutional investors. Prominent investors backing the company include Texas Instruments, Corero and 3i Group.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Private equity firm focused on mid-market businesses | 1945 | 3i.com | London, United Kingdom | |
Private equity, real estate, and credit investments are managed globally. | investcorp.com | New York, United States | ||
Early-stage US tech companies are invested in by the firm. | granitevc.com | San Francisco, United States | ||
| westburypartners.com | ||||
| wasserco.com | ||||
Family office investing in early-stage startups | egancapital.com | Boston, United States | ||
Analog chips and embedded processors are designed and manufactured. | 1930 | ti.com | Dallas, United States | |
DDoS protection is offered to enterprises and service providers. | 1997 | corero.com | Hudson, United States |
Investor details for Top Layer Networks
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Timeline of Top Layer Networks
4 dated milestones of Top Layer Networks across 14 years, from founding to its latest funding, stage changes and deals.
- Founded Top Layer Networks is founded.
- Funding First funding round of $28.0M.
- Funding Latest funding round, Series G, of $14.5M.
- Exit Acquired by Corero.
Competitors of Top Layer Networks
Top Layer Networks has 3 listed competitors in our database, 2 of them funded. They include Extreme Networks, Sourcefire and Blue Hexagon.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| extremenetworks.com | 1996 | San Jose, United States | 1,172 | Cloud based network security solutions provider | ||
| sourcefire.com | 2001 | Columbia, United States | $42.2M | Enterprise threat management solutions | ||
| bluehexagon.ai | 2017 | Sunnyvale, United States | $37M | AI-driven automated network threat defense solutions are provided for enterprises. |
Detailed competitors of Top Layer Networks
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Web traffic of Top Layer Networks
Websites that share an audience with Top Layer Networks (toplayer.com).
Websites whose visitors overlap most with Top Layer Networks. Affinity shows how closely the audiences match.
| Website | Domain | Audience affinity | Monthly visits | Global rank | Profile |
|---|---|---|---|---|---|
| tippingpoint.com | 100% | 10.6K | #1,641,033 | View details | |
| countersnipe.com | 94% | View details | |||
| sourcefire.com | 93% | 12.2K | #2,065,701 | View details | |
packetalarm.com | packetalarm.com | 91% | – | ||
| intrusion.com | 91% | 3.5K | #2,971,374 | View details | |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
All 37 similar websites and full traffic analytics for Top Layer Networks
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- 37 similar websites
- Audience overlap
- Engagement analytics
- Traffic by brand
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Top companies in Cybersecurity & Data Protection
3 companies that operate in the same segment as Top Layer Networks (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 Top Layer Networks
Complete news archive for Top Layer Networks
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Frequently Asked Questions about Top Layer Networks
Top Layer Networks was founded in 1997 and raised its 1st funding round 5 years after it was founded.
Top Layer Networks is headquartered in Westborough, United States. It is registered at Westborough, Massachusetts, United States.
Top Layer Networks is a funded company, having raised a total of $42.5M across 2 funding rounds to date. The company's 1st funding round was a Series F of $28M, raised on Aug 2002.
Top Layer Networks has 26 employees.
Top Layer Security provided of Network Intrusion Prevention Systems (NIPS) and introduced DDoS defense to detect and block application layer (layer 7) distributed denial of service cyber-attacks in 2011. Company developed hardware appliances for high-performance network security and traffic management issues and AppSwitch to extract and use detailed information from all 7 layers to identify and control both HTTP-based and non HTTP-based traffic. Acquired by Corero Plc and merged company renamed to Corero Network Security.
Top Layer Networks's top competitors include Extreme Networks, Sourcefire and Blue Hexagon.
Top Layer Networks has 8 investors. Key investors include Texas Instruments, Corero, 3i Group, Investcorp, and Granite Ventures.
Top Layer Networks operates through Corero Network Security, Inc..
Yes. Top Layer Networks was acquired by Corero in February 2011.