Apex Security Overview
Apex built a security platform that provides organizations with comprehensive visibility of their AI activity, allowing them to define how AI is used across the organization and enforce security policies accordingly. The platform can detect violations to a company's or industry security standards, detect and respond to AI attacks, so that companies can securely leverage cutting-edge AI technologies. Apex adds a crucial security layer to AI models, applications and large language models (LLMs); the platform includes a secure portal for a productive and secure interaction with all the organization's AI platforms.
Cumulative Funding Raised Over Time ($)
$7.0MMay 2024
Latest News
growth-positive
Tenable acquires Sam Altman-backed Apex for over $105 million to boost AI security | CTech
Tenable, an American cybersecurity company, is acquiring Israeli startup Apex Security for over $105 million. This acquisition marks Tenables sixth deal in Israel and aims to enhance its exposure management platform by integrating AI security capabilities. Apex Security, founded in 2023, has developed a platform that provides comprehensive visibility of AI activities within organizations, helping them enforce security policies and detect AI-related threats. Despite raising only $8.6 million, Apex is being acquired for a significant amount, highlighting its market leadership in AI security. The acquisition will also strengthen Tenables executive presence in Israel, aligning with its strategy to expand its cybersecurity capabilities.
Acquisition
growth-positive
חברת הסייבר האמריקאית טנאבל (Tenable) רוכשת את סטארט-אפ הסייבר הישראלי אייפקס סקיוריטי (Apex Security). החברה טרם הודיעה רשמית על הרכישה, אך צפויה לעשות זאת היו
Tenable, an American cybersecurity company, is acquiring the Israeli startup Apex Security. Apex, founded in 2023 by Matan Derman and Tomer Avni, has developed cybersecurity systems for AI and has raised $7 million from high-profile investors, including Sequoia Capital, Index Ventures, and Sam Altman. The acquisition marks Tenables sixth purchase in Israel since 2019, with the company employing around 250 people in the country. Tenable is publicly traded on Wall Street with a valuation of approximately $4 billion. The acquisition is expected to be officially announced soon.
Acquisition
הסטארטאפ הישראלי Apex Security דיווח רק בשנה שעברה על גיוס הון ראשון, כולל ממנכ"ל OpenAI, וכעת נרכש
growth-positive
The US cybersecurity company will pay about $100 million for the early stage AI cybersecurity company, sources tell "Globes."
Apex Security, an early-stage Israeli AI cybersecurity company, has been acquired by US-based Tenable for approximately $100 million. Founded two years ago, Apex Security had raised $7 million from investors including Sequoia, Index, and Sam Altman. The company specializes in modular security and AI, focusing on preventing model manipulation. Despite its short lifespan, the acquisition represents a significant return on investment. Apex Securitys technology is designed to secure AI models from exploitation, a growing concern as AI becomes more prevalent. The acquisition highlights the increasing importance of cybersecurity in the AI sector.
Acquired-by
growth-positive
The acquisition would strengthen Varonis' AI security capabilities. Apex denies the negotiations.
Varonis Systems is reportedly in advanced negotiations to acquire the Israeli cyber startup Apex Security for an estimated $30–40 million. Apex, founded by veterans of Unit 8200, has developed a security platform that provides comprehensive visibility of AI activity and enforces security policies. The acquisition would enhance Varonis AI security capabilities. Apex has raised $7 million in Seed funding from investors including Sam Altman, Sequoia, and Index. Despite Apexs denial of ongoing negotiations, the potential acquisition aligns with Varonis focus on protecting data from threats and complying with regulatory requirements.
Acquisition
| Sector | Cyber Security |
Funding
| Total funding | $7M |
| Last funding | $7M |
| Stage | Acquired |
| Rounds | 1 |
| Investors | 4 |
Team Members
3
Employees: 11-50
Web & Social Links
| Website | www.apexhq.ai/ |
Locations
Tel Aviv-Yafo, Israel
Photos & Videos
No files yet
Apex Security Business
Business models
B2B
Product stage
R&D
Employees
11-50
Sector
Cyber SecurityApplication & Website SecurityTarget Customer
Enterprise & Professional ServicesEnterprisesCore Technology
Artificial IntelligenceTags (2)
artificial-intelligencecyber-securityApex Security Financials
$7M
Total funding
Undisclosed
Capital raised
$7M
Last funding
Acquired
Funding stage
1
Total rounds
4
Investors
Cumulative Funding Raised Over Time ($)
$7.0MMay 2024
Private Equity Funding
Seed
May 2024
$7M
Sequoia Capital (Lead)
,
Sam Altman, Cerca Partners, Index Ventures
Public Offering / Exit
MNAEvent
May 2025
$105M
Apex Security Lifecycle
Cumulative Funding Raised Over Time
$7.0MMay 2024
All Events
Seed
May 2024
$7M
Sequoia Capital (Lead)
,
Sam Altman, Cerca Partners, Index Ventures
MNAEvent
May 2025
$105M
Apex Security News
7 articles
growth-positive
Tenable acquires Sam Altman-backed Apex for over $105 million to boost AI security | CTech
Tenable, an American cybersecurity company, is acquiring Israeli startup Apex Security for over $105 million. This acquisition marks Tenables sixth deal in Israel and aims to enhance its exposure management platform by integrating AI security capabilities. Apex Security, founded in 2023, has developed a platform that provides comprehensive visibility of AI activities within organizations, helping them enforce security policies and detect AI-related threats. Despite raising only $8.6 million, Apex is being acquired for a significant amount, highlighting its market leadership in AI security. The acquisition will also strengthen Tenables executive presence in Israel, aligning with its strategy to expand its cybersecurity capabilities.
Acquisition
growth-positive
חברת הסייבר האמריקאית טנאבל (Tenable) רוכשת את סטארט-אפ הסייבר הישראלי אייפקס סקיוריטי (Apex Security). החברה טרם הודיעה רשמית על הרכישה, אך צפויה לעשות זאת היו
Tenable, an American cybersecurity company, is acquiring the Israeli startup Apex Security. Apex, founded in 2023 by Matan Derman and Tomer Avni, has developed cybersecurity systems for AI and has raised $7 million from high-profile investors, including Sequoia Capital, Index Ventures, and Sam Altman. The acquisition marks Tenables sixth purchase in Israel since 2019, with the company employing around 250 people in the country. Tenable is publicly traded on Wall Street with a valuation of approximately $4 billion. The acquisition is expected to be officially announced soon.
Acquisition
הסטארטאפ הישראלי Apex Security דיווח רק בשנה שעברה על גיוס הון ראשון, כולל ממנכ"ל OpenAI, וכעת נרכש
growth-positive
The US cybersecurity company will pay about $100 million for the early stage AI cybersecurity company, sources tell "Globes."
Apex Security, an early-stage Israeli AI cybersecurity company, has been acquired by US-based Tenable for approximately $100 million. Founded two years ago, Apex Security had raised $7 million from investors including Sequoia, Index, and Sam Altman. The company specializes in modular security and AI, focusing on preventing model manipulation. Despite its short lifespan, the acquisition represents a significant return on investment. Apex Securitys technology is designed to secure AI models from exploitation, a growing concern as AI becomes more prevalent. The acquisition highlights the increasing importance of cybersecurity in the AI sector.
Acquired-by
growth-positive
The acquisition would strengthen Varonis' AI security capabilities. Apex denies the negotiations.
Varonis Systems is reportedly in advanced negotiations to acquire the Israeli cyber startup Apex Security for an estimated $30–40 million. Apex, founded by veterans of Unit 8200, has developed a security platform that provides comprehensive visibility of AI activity and enforces security policies. The acquisition would enhance Varonis AI security capabilities. Apex has raised $7 million in Seed funding from investors including Sam Altman, Sequoia, and Index. Despite Apexs denial of ongoing negotiations, the potential acquisition aligns with Varonis focus on protecting data from threats and complying with regulatory requirements.
Acquisition
growth-positive
ורוניס רוצה לרכוש את הסטארט-אפ הישראלי שסם אלטמן השקיע בו | כלכליסט
Varonis Systems, a cybersecurity company founded in Israel and traded on NASDAQ, is in advanced negotiations to acquire Apex Security, an Israeli cybersecurity startup. The deal is estimated to be valued between $30-40 million. Apex Security, founded by Matan Derman and Tomer Avni, develops AI security platforms that enable real-time detection, investigation, and rapid response to cyberattacks against AI systems. The company has raised $7 million in seed funding from investors including Sam Altman, Sequoia, and Index Ventures. Varonis focuses on protecting data from internal and external threats and is valued at approximately $5 billion. Apex denied the talks, and Varonis did not comment.
AcquisitionInvestment
growth-positive
Apex Emerges From Stealth With $7 Million in Seed Funding to Empower Secure AI Adoption
AI security company Apex has announced it has raised $7 million in seed funding. The round was led by Sequoia Capital and Index Ventures, with participation from angel investors. Apex provides real-time detection, investigation, and response to cyberattacks targeting AI platforms. The company was founded in 2023 by Matan Derman and Tomer Avni, who met at the elite intelligence unit 8200. Apex already caters to various Fortune 500 companies and plans to use the seed funding to accelerate product development, employee recruitment, and go-to-market efforts.
InvestmentCustomers
Apex Security Team
Employee Info
| Employees (range) | 11-50 |
| Exact count | 38 |
| Team members | 3 |
Similar Companies
Similar companies data is computed dynamically and not stored in the entity profile. This section requires implementing a similarity query (e.g. by classification overlap, sector, district).
This entity has 5 classification IDs that could be used for matching.
Apex Security Internal
Recent Updates
No update log entries.
Note: Free-text notes visible in the original Finder "Internal" tab are not present in the imported profile data. Only the update audit log is available.
Admin Info
| Confidence | 72/100 |
| Missing | sector, tags, video or image, markets, not claimed |
| BI Verification | Yanina Wainscheinker |
| Registrar ID | 516800216 |
| Creator | Jenny Sotnik-Talisman |
| Creator email | jenny.sotnik@sncentral.org |
| Last update | 2024-05-02T00:00:00.000Z |
| Created | 2024-05-02T00:00:00.000Z |
| Status detail | Acquired by Tenable on May, 2025 |