New cybersecurity startups in the US, October 2026
Updated October 31, 2026 · 31 first seen Jul 3 – Oct 1
31 new cybersecurity startups launched new websites between July 3 and October 1, 2026, and 7 of them were first seen in the last week. Large companies are the main audience for 24 of the 31, followed by developers at 3 and consumers at 2.
Seven of this month's cybersecurity startups
| Startup | What it does | Where |
|---|---|---|
| AdGuardadguardtools.com | Sells an ad-blocking and privacy tool for Windows users. | US |
| Client Posturegetclientposture.com | Provides white-label security scanning and proposal tools to managed service providers. | St. Petersburg, FL |
| SuiteSOCsuitesoc.com | Builds local-first security operations software that unifies cloud and on-premises evidence for enterprises. | Austin, TX |
| Mithryl Systemsmithrylsystems.dev | Operational intelligence and cybersecurity for critical infrastructure operators. | Winston-Salem, NC |
| ControlDrillcontroldrill.com | Tabletop incident response exercises that test security plans and produce compliance evidence for companies. | US |
| dmarcfuldmarcful.com | Email authentication diagnostics and DMARC report analytics for domain administrators. | US |
| CertKittrycertkit.com | Provides SSL/TLS certificate lifecycle management software to IT teams and managed service providers. | Minneapolis, MN |
24 more, with contact details, in FreshLeads.cc.
Start freeWho they sell to
| Large companies | 24 |
| Developers | 3 |
| Consumers | 2 |
| Small businesses | 1 |
| Agencies | 1 |
Top cities
| Austin, TX | 2 |
| St. Petersburg, FL | 2 |
| Mclean, VA | 2 |
| New York, NY | 1 |
| Heath Springs, SC | 1 |
| Vienna, VA | 1 |
20 of the 31 list a state, led by New York, Virginia and Florida with 3 each, then Texas, South Carolina and Minnesota with 2 each. Austin, St. Petersburg and McLean each have 2.
More from FreshLeads
How we count: a business is listed when its website was first seen 30 to 120 days ago, it is in the US, and it shows a real business. We leave out personal sites and sensitive categories such as health care. We show the name, the website, the city and a description we write. We never show emails, phone numbers or people's names on this page. Full method.
Source: FreshLeads.cc analysis of 31 new US websites, October 2026. You may reuse the counts with credit (CC BY 4.0).
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