What do Polymer and Prompt Security sell?

Polymer sells Polymer DSPM, Polymer DLP for AI and Polymer SecureRAG. Prompt Security sells Prompt Fuzzer.

Are Polymer and Prompt Security in the same category?

They share Workforce AI usage security. Polymer's primary category is Data security posture management and Prompt Security's is AI firewalls and guardrails.

When were Polymer and Prompt Security founded?

Prompt Security was founded in 2023.

Who owns Polymer and Prompt Security?

Prompt Security is owned by SentinelOne, since 2025.

Vendor comparison · 2 companies

Polymer vs Prompt Security

Polymer sells a platform to identify, analyze, and mitigate real-time security risks across AI and SaaS ecosystems. Prompt Security offers protection for both employee use of AI tools and the apps an organization builds. CISO Tribune files both under Workforce AI usage security. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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Polymer vs Prompt Security: Products, Customers and Funding Compared
What it sells
	PolymerPolymer sells a platform to identify, analyze, and mitigate real-time security risks across AI and SaaS ecosystems.polymerhq.io	Prompt SecurityPrompt Security offers protection for both employee use of AI tools and the apps an organization builds.prompt.security
What it sells	Polymer DSPMA platform that identifies, classifies and monitors sensitive data across SaaS and AI tools in motion and at rest. Polymer DLP for AIData loss prevention controls aimed at risks introduced by AI tools and agents handling company data. Polymer SecureRAG^[1]A tool described as AI-powered data security for deployment of LLM agents in enterprises.	Prompt Fuzzer^[4]An open source tool for AI vulnerability assessment.
Categories
Categories	Data security posture management (primary category) Data loss prevention SaaS security posture Workforce AI usage security	AI firewalls and guardrails (primary category) Workforce AI usage security AI model and agent security
Headquarters
Headquarters	Not stated on its pages	Not stated on its pages
Founded
Founded	Not stated on its pages	2023^[1]
Ownership and funding
Ownership and funding	Not stated on its pages	Owned by SentinelOne since 2025^{[3][7][8][10]}
Named customers
Named customers	Not stated on its pages	Not stated on its pages
Recent news
Recent news	Not stated on its pages	Not stated on its pages
G2 and Gartner Peer Insights
G2 and Gartner Peer Insights	G2: Not stated on its pages Gartner Peer Insights: Not stated on its pages	G2: listed, seen November 10, 2026^[10] Gartner Peer Insights: Not stated on its pages
Who it fits
Who it fits	Not written yet	Not written yet
Last verified
Last verified	October 28, 2026	September 27, 2026

Where they overlap

Polymer and Prompt Security are both filed under Workforce AI usage security.

Where they differ, field by field

Polymer's primary category is Data security posture management; Prompt Security's is AI firewalls and guardrails.
Polymer is also filed under Data loss prevention and SaaS security posture. Prompt Security is also filed under AI model and agent security.
Polymer lists Polymer DSPM, Polymer DLP for AI and Polymer SecureRAG. Prompt Security lists Prompt Fuzzer.
Prompt Security was founded in 2023.
Prompt Security is owned by SentinelOne, since 2025.

What it sells: Prompt Security

What Prompt Fuzzer does^[4]: Prompt Fuzzer is listed under AI Security Tools on the Prompt Security site. The site describes it as an open source tool for AI vulnerability assessment.

Questions about Polymer and Prompt Security

What do Polymer and Prompt Security sell?: Polymer sells Polymer DSPM, Polymer DLP for AI and Polymer SecureRAG. Prompt Security sells Prompt Fuzzer.
Are Polymer and Prompt Security in the same category?: They share Workforce AI usage security. Polymer's primary category is Data security posture management and Prompt Security's is AI firewalls and guardrails.
When were Polymer and Prompt Security founded?: Prompt Security was founded in 2023.
Who owns Polymer and Prompt Security?: Prompt Security is owned by SentinelOne, since 2025.

About Polymer

Polymer sells a platform to identify, analyze, and mitigate real-time security risks across AI and SaaS ecosystems. Polymer describes the problem as one where AI agents work alongside employees in the tools they use every day.^[1][2]

Polymer secures data the moment AI or humans generate or access it. Polymer lets organizations create and manage context-driven security policies tailored to their own requirements and AI usage. Polymer groups human and non-human identities to control how they can interact with data.^[1][2]

Polymer monitors data in motion and at rest based on custom security policies. Polymer provides reports and risk scores that expose vulnerabilities such as shadow AI usage, insider threats, and misconfiguration. Polymer remediates violations at runtime by redacting sensitive data, revoking file access, and triggering custom workflows with or without human review.^[2]

Polymer generates audit logs mapped to regulatory frameworks such as HIPAA, SOC 2, CCPA, and GDPR. Polymer includes role-based access controls (RBAC) and is SOC 2 Type II compliant.^[1][2]

Polymer on the record

About Prompt Security

Prompt Security offers protection for both employee use of AI tools and the apps an organization builds. Prompt Security continuously tracks prompts per day in organizations of 500 to 1,000 employees.^[4][5]

Prompt Security holds that securing agentic AI is fundamentally different from securing traditional software. Prompt Security states that agents act autonomously, call tools and reason over untrusted input, so prompt injection, identity and runtime behavior have to be governed in real time and not only at the perimeter.

Prompt Security provides a security skill suite for OpenClaw, NanoClaw and Hermes agents.^[6]

Prompt Security provides a tool that tracks and analyzes OpenClaw deployments across an organization. Prompt Security provides a tool that tests and hardens a system prompt against dynamic LLM-based attacks.^[4][9]

Prompt Security publishes news, research, tools and analysis for security teams responding to AI threats. Prompt Security describes an AI gateway as a centralized layer between an organization's users or applications and the AI models or services they call. An AI gateway, as Prompt Security describes it, lets security teams monitor, control and secure that traffic from one place instead of instrumenting every application separately.^[4]

Prompt Security curates an interactive, continuously updated directory of 471 companies building security for agentic AI, organized across 14 functional categories. Both pure-play startups and dedicated AI-security lines from larger vendors are in scope for the Prompt Security directory. Entries in the Prompt Security directory are compiled from vendor websites, product documentation, funding announcements, public company registries and analyst coverage. Placement in the Prompt Security directory reflects publicly stated capabilities, not vendor marketing tiers. Category definitions and threat coverage in the Prompt Security directory are mapped against established, independent frameworks for AI and LLM security. The full dataset behind the Prompt Security directory is open and machine-readable.^{[2][4][5][6][9]}

Prompt Security on the record

Sources

Polymer full record

[1]polymerhq.ioPolymer · polymerhq.io · undated page, accessed October 28, 2026 · Tier A
[2]Polymer Runtime Data Security | Secure AI WorkflowsPolymer · undated page, accessed November 10, 2026 · Tier A

Prompt Security full record

[1]Prompt security partners with f5 to secure genai applications with a firewall for ai 302131373Prompt Security via PR Newswire · prnewswire.com · published April 30, 2024 · Tier A
[2]Securing ai promptSentinelOne · sentinelone.com · undated page, accessed September 27, 2026 · Tier A
[3]Sentinelone completes acquisition of prompt securitySentinelOne via The Globe and Mail · theglobeandmail.com · published September 5, 2025 · Tier A
[4]Prompt Security | From SentinelOnePrompt Security · undated page, accessed October 27, 2026 · Tier A
[5]AI Security | AI Glossary | Prompt SecurityPrompt Security · undated page, accessed October 27, 2026 · Tier A
[6]ClawSec: A Security Skill Suite for OpenClaw AgentsPrompt Security · undated page, accessed October 27, 2026 · Tier A
[7]AI Security Startups Map — Agentic AI Vendors by CategoryPrompt Security · undated page, accessed October 27, 2026 · Tier A
[8]About this Map & Methodology — AI Security Startups MapPrompt Security · undated page, accessed October 27, 2026 · Tier A
[9]OneClaw DashboardPrompt Security · undated page, accessed November 10, 2026 · Tier A
[10]Prompt Security Pros and Cons | User Likes & DislikesG2 · undated page, accessed November 10, 2026 · Tier C

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