Assail

What the company sells

The company also offers related products such as Sidewinder, a newer exploitation platform version of Ares. Assail raised a $250,000 pre-seed funding round led by Squared Circle Ventures and was accepted into the NVIDIA Inception program.^[1][2]

Categories

• Breach simulation and automated pen-testing (primary category)
• API security
• Mobile security

Headquarters

Not established from our sources

Founded

Not established from our sources

Ownership

Privately held

CISO on record

Ken Pfiel, Chief Information Security Officer (appointment announced in July 2026)

Website

assailai.com

Products and services

Product names as the company writes them; what each does, in our words, from the company's own product pages. Never how well it does it.

• Ares^[1]

  An agentic AI platform that autonomously discovers and exploits vulnerabilities across APIs, web applications and mobile apps, providing evidence of exploitation.

• Sidewinder^[2]

  A fine-tuned exploitation platform built as the next version of Ares, using a 31-billion parameter model with recursive self-healing capability.

• API Exposure Validation

  Continuously discovers APIs across an organization's attack surface, including undocumented endpoints, and exploits them to show real risk.

• Web App Exposure Validation

  Inventories web applications in an environment and tracks their vulnerability posture over time to prioritize remediation.

Competitors and alternatives

The other companies on our record filed under the same categories, category by category: first those that lead with that category and share more of Assail's categories, then alphabetical. A list from the record, never a ranking.

• On breach simulation and automated pen-testing, Assail competes with Armadin, Cymulate, Fleuret AI, Horizon3.ai, Pentera, Picus Security, SafeBreach, AttackIQ, Filigran, Skyhawk Security and 1 more.

• On api security, Assail competes with Data Theorem, 42Crunch, Cequence Security, Escape, Levo.ai, Pynt, Salt Security, Traceable AI, Wallarm, Appdome and 8 more.

• On mobile security, Assail competes with BlackBerry, iVerify, Lookout, NowSecure, Zimperium, Appdome, Data Theorem, BlackCloak, F-Secure, Jamf and 2 more.

References

Every fact above cites one of these by number. Tier A is the company itself, a regulator or a filing; tier B is trade or business press.

1. [1]assailai.comAssail · assailai.com · undated page, accessed October 21, 2026 · Tier A: the company, a regulator or a filing
2. [2]Press releasesAssail · assailai.com · undated page, accessed October 21, 2026 · Tier A: the company, a regulator or a filing

Last verified October 21, 2026. Our code found the quoted passage behind each fact on its source page when the fact was recorded, and re-checks every record against its sources each month.

Recorded October 21, 2026 from the references above. Descriptions are in our own words; we do not rank or recommend vendors, and no vendor pays to be listed or to change what we write. Disclosure: until the publisher confirms it has no business relationship with this company, treat one as possible (how the network works). Spot a factual error? Request a correction.

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