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Prompt Security

Cybersecurity · New York City, United States · Founded 2023

Prompt Security empowers enterprises to leverage Generative AI, safeguarding against a comprehensive spectrum of risks to their applications, employees, and customers MoreLess

Prompt Security is a cutting-edge startup specializing in safeguarding organizations from the risks associated with Generative AI (GenAI). The company operates in the cybersecurity market, focusing on protecting businesses that use or develop applications powered by Large Language Models (LLMs). These models, while powerful, can pose significant risks such as data leaks, prompt injections (unauthorized commands), and shadow AI (unapproved AI usage).

Prompt Security serves a diverse range of clients, including enterprises, tech companies, and any organization integrating GenAI into their operations. The platform offers real-time threat detection and mitigation, ensuring that sensitive data remains secure and that AI applications behave predictably and safely. By providing instant visibility into all GenAI activities within an organization, Prompt Security helps clients maintain productivity while minimizing risks.

The business model of Prompt Security is based on a subscription service. Clients pay a recurring fee to access the platform, which includes continuous monitoring, threat detection, and mitigation services. This model ensures a steady revenue stream while providing clients with ongoing protection and updates.

Prompt Security makes money by offering tiered subscription plans, which vary based on the level of protection and features required by the client. Additional revenue streams may include consulting services and customized security solutions for larger enterprises with unique needs.

In summary, Prompt Security is a vital player in the cybersecurity market, offering a user-friendly platform that empowers organizations to safely embrace GenAI technology. By addressing key concerns such as data leaks, offensive content, and brand reputation, Prompt Security ensures that businesses can leverage AI advancements without compromising security.

Keywords: GenAI, cybersecurity, data protection, prompt injection, shadow AI, real-time monitoring, threat mitigation, subscription service, LLM security, brand protection.

Company overview

Prompt Security company information

The essential company record, classifications and operating signals in one place.

Status
Acquired
Founded
2023
Headquarters
New York City, United States
Employees
42
Open positions
None listed
Dealroom signal
62.0
client focusb2btechnologyArtificial Intelligencebusiness modelSaaSindustrySecuritysectorCore AIsectorCybersecuritysectorAI SecuritysectorGenerative AIsectorMLopssectorgenAI Operation Layer

Valuation & funding

Prompt Security funding history

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
ACQUISITIONExit Aug 2025 $250M $250M SentinelOne
SERIES AEquity / VC Nov 2024 $18M $72M Hetz Ventures · Jump Capital
SUPPORT PROGRAMOther financing Feb 2024 $0 AWS & CrowdStrike Cybersecurity Accelerator
SEEDEquity / VC Jan 2024 $5M $20M Four Rivers · Hetz Ventures
Showing 4 recorded eventsUnlock the complete deal history →

Financials

Workforce over time

Available workforce history. Financial fields without reported data are omitted.

YearEmployees
2026 43
2025 49
2024 33
Company filings, research estimates and Dealroom dataOpen the full financial model →

Growth signals

Prompt Security website traffic

Latest recorded traffic for Prompt Security is 24K monthly website visits, down 27.3% over the last three months. Prompt Security's team declined 14.3% over the past year.

Latest monthly visits24K 3-month web change-27.3% 1-year team growth-14.3%
Monthly website visits32 observations · Dec 2023–Jul 2026
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Hiring

Open positions at Prompt Security

Current openings linked to this company in Dealroom.

1 distinct opening shownExplore hiring signals →

Comparisons

Prompt Security compared with similar companies

Dealroom’s weighted taxonomy model identifies the closest operating peers. Company identity and context stay open; selected comparison metrics preview what is available in the platform.

Showing 8 of the closest matchesCompare every metric →

Talent graph

Prompt Security's talent

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Team profiled 13 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 3 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Investors

8 investors on Prompt Security's cap table

Sourced from Dealroom's funding and investor records.

Seed 2 investors entered at this stage
Hetz Ventures
Four Rivers
Series A 1 investor entered at this stage
Jump Capital
Other known 5 additional known investors
AWS & CrowdStrike Cybersecurity Accelerator
SentinelOne
Elron Ventures
Mandy Andress
Sam Murdoch

Global footprint

Where Prompt Security has talent and traffic

Workforce by country
5 countries with
team presence
🇮🇱 Israel40%
🇺🇸 United States24%
🇨🇦 Canada4%
🇳🇬 Nigeria4%
🇮🇪 Ireland4%
5 countries shown

In the news

Latest news about Prompt Security

Recent press, funding announcements, and product moves mentioning Prompt Security — open to read from the original sources.

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Market sentiment

What the market is saying about Prompt Security

An AI-synthesized read of the highest-engagement posts about Prompt Security on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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