Open source focus
Open Source Alternatives to Perimeter 81
60 open source Enterprise options similar to Perimeter 81, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Each profile notes license and self-hosting where we have it.
Twingate61CybersecurityRedwood City, United States$62.0MOpen source
SafeBreach69EnterpriseTel Aviv, Israel$140.5MOpen source
Coro65EnterpriseNew York, United States$235.0MOpen source
Netskope58CybersecuritySanta Clara, United States$1.5BOpen source
Palo Alto Networks Israel Holdings54Cybersecurityתל אביב - יפו, IsraelOpen source
Talon Cyber Security69EnterpriseNew York, United States$126.0MOpen source
Perception Point65EnterpriseTel Aviv, Israel$38.0MOpen source
Team Cymru62CybersecurityOrem, USA$63.0MOpen source
Demisto62EnterpriseSan Francisco, United States$69.0MOpen source
Seemplicity61EnterpriseTel Aviv, Israel$182.0MOpen source
OneLayer58CybersecurityTel Aviv, Israel$36.2MOpen source
Talon54CybersecurityTel Aviv, Israel$169.0MOpen source
Ironblocks54EnterpriseTel Aviv, Israel$7.0MOpen source
Lightcyber53EnterpriseTel Aviv, Israel$35.0MOpen source
Vectra AI50CybersecuritySan Jose, USA$10.0MOpen source
Appgate50CybersecurityMiami, United StatesOpen source
Crossid.io24Zero TrustTel Aviv, IsraelOpen source
Exabeam78EnterpriseFoster City, United States$390.0MOpen source
Tailscale74CybersecuritySan Francisco, United States$505.0MOpen source
Aqua Security69EnterpriseSan Francisco, United States$400.5MOpen source
Teleport69CybersecurityOakland, United States$190.0MOpen source
Corelight67Network SecuritySan Francisco, United States$284.2MOpen source
Expel66CybersecurityHerndon, United States$267.8MOpen source
Intezer63EnterpriseTel Aviv, Israel$58.0MOpen source
CyCognito63EnterprisePalo Alto, United States$153.0MOpen source
Red Canary61CybersecurityDenver, United States$90.0MOpen source
Mend60Open SourceTel Aviv, Israel$121.5MOpen source · Self-hostable
Twistlock60EnterpriseSan Francisco, United States$62.8MOpen source
Netography60CybersecurityColumbia, United States$35.0MOpen source
Token Security57EnterpriseSan Francisco, United States$27.0MOpen source
Ray Security57EnterpriseSan Francisco, United States$11.0MOpen source
ARMO57EnterpriseTel Aviv, Israel$34.5MOpen source · Self-hostable
Tamnoon57EnterpriseTel Aviv, Israel$17.1MOpen source
Backslash Security57CybersecurityTel Aviv, Israel$27.0MOpen source
Secdo55EnterpriseNew York City, United States$11.0MOpen source
Lightspin54EnterpriseTel Aviv, Israel$60.0MOpen source
Knostic54Cybersecurity$14.3MOpen source
Piiano54EnterpriseTel Aviv, Israel$9.0MOpen source
KTrust54EnterpriseTel Aviv, Israel$5.3MOpen source
Enso Security52EnterpriseTel Aviv, Israel$6.0MOpen source
Meta Networks50Wide Area Network (WAN)San Jose, United States$10.0MOpen source
Torch Security49CybersecurityLeawood, United StatesOpen source
CyberGuard AI47CybersecurityDurham, United Kingdom$1.0BOpen source
Cyberidge46CybersecurityTel Aviv, Israel$1.3BOpen source
MalantAI46CybersecurityTel Aviv, IsraelOpen source
Axiom Security45EnterpriseSan Francisco, United States$11.0MOpen source
PureSec42EnterpriseTel Aviv, Israel$10.0MOpen source
Slauth.io38EnterpriseAshburn, United States$1.5MOpen source · Self-hostable
Codavel38CybersecurityPorto, PortugalOpen source
TandemTrace35Agentic AIOpen source
Dustico34EnterpriseTel Aviv, IsraelOpen source · Self-hostable
Palo Alto Networks Cortex XDR23CybersecuritySanta Clara, United StatesOpen source
Controlsecurity18CybersecurityTel Aviv, IsraelOpen source
Aemetis15Climate TechCupertino, United StatesOpen source · Self-hostable
Commvault Systems15EnterpriseTinton Falls, United StatesOpen source
0sec11CybersecurityTel Aviv, IsraelOpen source · Self-hostable
Falco10CybersecurityOpen source · Self-hostable
RSA10CybersecurityBedford, United StatesOpen source
ESETCybersecurityBratislava, SlovakiaOpen source
MeritsecurityCybersecurityOpen source
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| Twingate | Cybersecurity | Open source | Redwood City, United States | $62.0M | 61 |
| SafeBreach | Enterprise | Open source | Tel Aviv, Israel | $140.5M | 69 |
| Coro | Enterprise | Open source | New York, United States | $235.0M | 65 |
| Netskope | Cybersecurity | Open source | Santa Clara, United States | $1.5B | 58 |
| Palo Alto Networks Israel Holdings | Cybersecurity | Open source | תל אביב - יפו, Israel | — | 54 |
| Talon Cyber Security | Enterprise | Open source | New York, United States | $126.0M | 69 |
| Perception Point | Enterprise | Open source | Tel Aviv, Israel | $38.0M | 65 |
| Team Cymru | Cybersecurity | Open source | Orem, USA | $63.0M | 62 |
| Demisto | Enterprise | Open source | San Francisco, United States | $69.0M | 62 |
| Seemplicity | Enterprise | Open source | Tel Aviv, Israel | $182.0M | 61 |
| OneLayer | Cybersecurity | Open source | Tel Aviv, Israel | $36.2M | 58 |
| Talon | Cybersecurity | Open source | Tel Aviv, Israel | $169.0M | 54 |
| Ironblocks | Enterprise | Open source | Tel Aviv, Israel | $7.0M | 54 |
| Lightcyber | Enterprise | Open source | Tel Aviv, Israel | $35.0M | 53 |
| Vectra AI | Cybersecurity | Open source | San Jose, USA | $10.0M | 50 |
| Appgate | Cybersecurity | Open source | Miami, United States | — | 50 |
| Crossid.io | Zero Trust | Open source | Tel Aviv, Israel | — | 24 |
| Exabeam | Enterprise | Open source | Foster City, United States | $390.0M | 78 |
| Tailscale | Cybersecurity | Open source | San Francisco, United States | $505.0M | 74 |
| Aqua Security | Enterprise | Open source | San Francisco, United States | $400.5M | 69 |
| Teleport | Cybersecurity | Open source | Oakland, United States | $190.0M | 69 |
| Corelight | Network Security | Open source | San Francisco, United States | $284.2M | 67 |
| Expel | Cybersecurity | Open source | Herndon, United States | $267.8M | 66 |
| Intezer | Enterprise | Open source | Tel Aviv, Israel | $58.0M | 63 |
| CyCognito | Enterprise | Open source | Palo Alto, United States | $153.0M | 63 |
| Red Canary | Cybersecurity | Open source | Denver, United States | $90.0M | 61 |
| Mend | Open Source | Open source · Self-hostable | Tel Aviv, Israel | $121.5M | 60 |
| Twistlock | Enterprise | Open source | San Francisco, United States | $62.8M | 60 |
| Netography | Cybersecurity | Open source | Columbia, United States | $35.0M | 60 |
| Token Security | Enterprise | Open source | San Francisco, United States | $27.0M | 57 |
| Ray Security | Enterprise | Open source | San Francisco, United States | $11.0M | 57 |
| ARMO | Enterprise | Open source · Self-hostable | Tel Aviv, Israel | $34.5M | 57 |
| Tamnoon | Enterprise | Open source | Tel Aviv, Israel | $17.1M | 57 |
| Backslash Security | Cybersecurity | Open source | Tel Aviv, Israel | $27.0M | 57 |
| Secdo | Enterprise | Open source | New York City, United States | $11.0M | 55 |
| Lightspin | Enterprise | Open source | Tel Aviv, Israel | $60.0M | 54 |
| Knostic | Cybersecurity | Open source | — | $14.3M | 54 |
| Piiano | Enterprise | Open source | Tel Aviv, Israel | $9.0M | 54 |
| KTrust | Enterprise | Open source | Tel Aviv, Israel | $5.3M | 54 |
| Enso Security | Enterprise | Open source | Tel Aviv, Israel | $6.0M | 52 |
| Meta Networks | Wide Area Network (WAN) | Open source | San Jose, United States | $10.0M | 50 |
| Torch Security | Cybersecurity | Open source | Leawood, United States | — | 49 |
| CyberGuard AI | Cybersecurity | Open source | Durham, United Kingdom | $1.0B | 47 |
| Cyberidge | Cybersecurity | Open source | Tel Aviv, Israel | $1.3B | 46 |
| MalantAI | Cybersecurity | Open source | Tel Aviv, Israel | — | 46 |
| Axiom Security | Enterprise | Open source | San Francisco, United States | $11.0M | 45 |
| PureSec | Enterprise | Open source | Tel Aviv, Israel | $10.0M | 42 |
| Slauth.io | Enterprise | Open source · Self-hostable | Ashburn, United States | $1.5M | 38 |
| Codavel | Cybersecurity | Open source | Porto, Portugal | — | 38 |
| TandemTrace | Agentic AI | Open source | — | — | 35 |
| Dustico | Enterprise | Open source · Self-hostable | Tel Aviv, Israel | — | 34 |
| Palo Alto Networks Cortex XDR | Cybersecurity | Open source | Santa Clara, United States | — | 23 |
| Controlsecurity | Cybersecurity | Open source | Tel Aviv, Israel | — | 18 |
| Aemetis | Climate Tech | Open source · Self-hostable | Cupertino, United States | — | 15 |
| Commvault Systems | Enterprise | Open source | Tinton Falls, United States | — | 15 |
| 0sec | Cybersecurity | Open source · Self-hostable | Tel Aviv, Israel | — | 11 |
| Falco | Cybersecurity | Open source · Self-hostable | — | — | 10 |
| RSA | Cybersecurity | Open source | Bedford, United States | — | 10 |
| ESET | Cybersecurity | Open source | Bratislava, Slovakia | — | — |
| Meritsecurity | Cybersecurity | Open source | — | — | — |