Silverfort

Silverfort protects legacy logins and service accounts that most MFA tools can't reach.

Silverfort sits in the gap Microsoft won't close and AI can't touch, with its next real test being whether the Fabrix integration actually works.

Silverfort sits between users and old computer systems (like those running Kerberos and NTLM) to check who people are and what they can access, using a technique called inline protection that doesn't need software installed on every machine. Microsoft could theoretically build this, but it doesn't want to because the company makes money by moving customers away from old systems to newer cloud ones, not by making the old systems safer. The company's advantages come from years of work connecting to many different systems, insurance companies using it to decide whether to cover clients, and having handled billions of login attempts across 1,000+ large customers. Silverfort recently added an AI system (called Fabrix) to make smarter decisions about who should get access, which could create new reasons for companies to stay with Silverfort rather than replace it. The one thing that could change this is if Microsoft decides to seriously build competing protection for old systems, or if competitor Okta suddenly moves down into protecting older technology.

• Over 1,000 enterprise customers (Apr 2026)
• Analyzes 10B+ authentications daily (Apr 2026)
• Roughly $1B valuation on $222M raised (Jan 2024)

• Revenue remains undisclosed with wildly inconsistent third-party estimates ($82M-$139M range). Severity: medium
• Microsoft could extend Entra ID into agentless legacy protection, eroding core differentiation. Severity: medium
• Fabrix Security integration (acquired April 2026) could stall, delaying AI-decisioning roadmap. Severity: medium
• No priced funding round since January 2024, leaving valuation stale after 2.5+ years of scaling. Severity: low
• Conflicting HQ reporting (Dallas, Tel Aviv, Boston) signals possible organizational or disclosure inconsistency. Severity: low

Is Silverfort profitable?

Silverfort does not publicly disclose profitability or audited revenue. It has raised roughly $222-223M total funding, with its Series D of $116M in January 2024 valuing the company around $1 billion per TechCrunch, but no profit figures have been released.

Has Silverfort had layoffs?

No layoffs are reported. Silverfort's own data shows headcount growing from about 300 employees at end of 2023 to active hiring through 2025, with job postings up 34% year over year as of mid-2026, per Revelio Labs.

Could AI replace Silverfort?

No. Silverfort's core value is its patented Runtime Access Protection layer that enforces MFA inline across legacy protocols like Kerberos and NTLM, something LLMs cannot intercept. It is absorbing AI via its April 28, 2026 acquisition of Fabrix Security, not being displaced by it.

Who is Silverfort's biggest competitor?

Microsoft Entra ID is the largest adjacent incumbent, though structurally conflicted since its business model favors migrating customers off legacy Active Directory rather than securing it. Okta, CyberArk, and SailPoint are the main pure-play identity competitors as of 2026.

Who owns Silverfort?

Silverfort is privately held and venture-backed, founded in 2016 by Hed Kovetz, Yaron Kassner, and Matan Fattal. Its Series D round (January 23, 2024, $116M) was led by Brighton Park Capital, with no single majority owner disclosed publicly.

Is Silverfort planning an IPO?

As of the January 23, 2024 Series D announcement, CEO Hed Kovetz said an IPO was not imminent, though he indicated acquisitions were possible. No IPO filing or new update has been publicly confirmed since.

• 2026-04-28Acquired Fabrix Security, an AI-native identity decisioning engine, for undisclosed sum
• 2025-06-13Received IMDA Singapore accreditation as identity security and threat detection platform
• 2025-06Hired Howard Greenfield as President and CRO; launched AI Agent Security product
• 2025-04-28Expanded non-human identity security to cloud IdPs, completing Rezonate integration
• 2024-12Launched Privileged Access Security product with just-in-time access
• 2024-11-13Acquired Rezonate, adding cloud ITDR, ISPM, and IGA capabilities
• 2024-09Launched identity-first incident response solution
• 2024-01-23Raised $116M Series D led by Brighton Park Capital, valued near $1 billion
• 2022-04Raised $65M Series C led by Greenfield Partners
• 2016Founded in Israel by Hed Kovetz, Yaron Kassner, and Matan Fattal

• Silverfort
• Silverfort Raises $116M (2024-01-23)
• Silverfort raises $116M (2024-01-23)
• Cyber security startup Silverfort raises $116 million (2024-01-23)
• Silverfort Acquires Rezonate (2024-11-13)
• Silverfort Acquires Fabrix Security (2026-04-28)
• $82M Est. ARR (2025-11-27)
• Silverfort - Overview (2026-07-06)
• Silverfort Revenue and Competitors
• Silverfort Raises $116M to Unify Identity Protection (2024-01-23)
• Silverfort IMDA accreditation (2025-06-13)
• Silverfort Number of Employees 2026 (2026-06-29)