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Vendor comparison · 4 companies

Aurascape, Harmonic Security, Pluto Security and WitnessAI

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Aurascape, Harmonic Security, Pluto Security and WitnessAI Compared
AurascapeAurascape secures employee AI use, helps teams build agents safely, and protects AI agents running in production.aurascape.aiHarmonic SecurityHarmonic Security sells a workforce AI security platform that classifies AI tasks, discovers why employees and agents use them, and applies controls in real time.harmonic.securityPluto SecurityPluto Security sells security for what people build with AI.pluto.securityWitnessAIWitnessAI sells a platform that discovers AI applications, agents and MCP servers in use across an organization, governs what employees and AI agents can do, and applies runtime security controls against threats such as prompt injection and jailbreaks.witness.ai
What it sells
  • Aurascape AI Security PlatformAutomatically discovers AI applications in use and in development, and applies real-time data categorization and threat inspection with intent-based controls.
  • Harmonic ExploreDiscovers how an organization's workforce uses AI tools.
  • Harmonic GuideProvides real-time visibility and control across the browser and desktop for AI use.
  • Harmonic CommandUnifies governance of AI activity for both human employees and AI agents.
  • MCP Gateway[2]A locally installed gateway that intercepts Model Context Protocol traffic to give visibility and control over an organization's agentic AI ecosystem.
  • Explorer[1]Discovers and maps the AI tools, agents and extensions in use across an organization's endpoints, cloud and SaaS.
  • Risk radar[1]Evaluates discovered AI tools and agents against a risk database to triage them.
  • Space Shield[1]Applies and enforces policies that control what AI tools and agents are permitted to do based on context.
  • Marketspace[1]Offers a curated catalog of vetted AI add-ons that employees can adopt.
  • ObserveFinds and catalogs AI applications, agents and MCP servers, and visualizes AI conversations and agentic activity.
  • ControlGoverns what AI agents and employees can do, routes prompts to models based on risk or purpose, and generates audit trails.
  • ProtectApplies runtime security controls and content guardrails intended to block prompt injection and jailbreak attempts and filter harmful responses.
Categories
Headquarters
Santa Clara, United States[2]Not stated on its pagesNot stated on its pagesMountain View, United States[4]
Founded
Not stated on its pagesNot stated on its pagesNot stated on its pages2023[3]
Ownership and funding
Privately held[3][5]Privately heldPrivately heldPrivately held[2]
Named customers
Not stated on its pagesNot stated on its pagesNot stated on its pagesNot stated on its pages
Recent news
  • August 3, 2026Aurascape appointed Jim Walsh as Chief Revenue Officer.[8]
  • March 17, 2026Aurascape announced an expansion of its AI security platform aimed at helping organizations adopt AI agents securely.[9]
Not stated on its pages
  • October 13, 2026Pluto Security announced its emergence from stealth with $42 million in total funding and said it has over 40 enterprise customers.[7]
  • June 17, 2026Pluto Security launched Plutonium, a free, vendor-neutral security hub covering the AI assistant ecosystem.[6]
Not stated on its pages
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, the company sells mainly to enterprises and other organizations that want to adopt AI, covering both employee use and AI they build. Its governance page speaks to governance, security, and compliance teams. A customer case study describes a credit union in a regulated setting where audits call for proof of AI controls. That credit union rolled out in two phases, visibility first and protection second. Teams preparing copilots and embedded SaaS AI for rollout are also addressed.Not written yetFrom its own pages, Pluto Security sells mainly to security teams and CISOs who want to let employees use AI tools without blocking them. It names a Fortune 500 health insurance company among the kinds of customers quoted. Its about page describes protecting AI builders, developer tools, and business workspaces.From its own pages, the company sells mainly to enterprises, saying they need security and governance that extends from humans to agents. It addresses employee use of AI, citing risks around sensitive data, compliance, and shadow AI. It also addresses AI agents, which it describes as connecting to tools, accessing data, and taking actions on behalf of employees.
Last verified
September 27, 2026November 3, 2026October 16, 2026November 2, 2026

About Aurascape

Aurascape secures employee AI use, helps teams build agents safely, and protects AI agents running in production. The same page names real-time visibility, policy enforcement, and data protection. The product page says Aurascape gives enterprises real-time visibility, classification, and control over every AI interaction. It also says it helps organizations safely adopt AI without slowing the business down.[1][4]

Aurascape says it secures both AI consumption and AI development on one platform. Inline visibility and control cover AI apps, MCP tools, and custom agents. One product area automatically detects and risk-scores every AI application. A third gives visibility into how AI apps connect to tools and systems and governs all MCP activity with the Zero-Bypass MCP Gateway.

Aurascape is listed as a Sample Vendor in the AI Usage Control category of the Gartner® Hype Cycle® for AI Governance Technologies, 2026.

The Police Credit Union deployed Aurascape in two phases, visibility first and protection second, to govern AI usage, protect member data, and align its security program with NCUA AI guidance and the NIST AI Risk Management Framework. Aurascape can enforce which apps, tenants, licenses, and models can be used with enterprise data on supported paths. It can also block or redirect risky actions before they complete in governed deployments.[1][4][6][7]

Aurascape on the record

Sources

Aurascape full record

  1. [1]Aurascape | The AI Security CompanyAurascape · undated page, accessed September 27, 2026 · Tier A
  2. [2]Aurascape launches from stealth with 50m in funding and an ai native security platform to enable businesses to innovate fearlesAurascape · aurascape.ai · published April 8, 2025 · Tier A
  3. [3]Product - Aurascape, Inc.Aurascape · undated page, accessed October 23, 2026 · Tier A
  4. [4]Case Study: How The Police Credit Union Safely Embraced AI with AurascapeAurascape · undated page, accessed October 23, 2026 · Tier A
  5. [5]Gartner Hype Cycle for AI Governance Technologies, 2026Aurascape · undated page, accessed October 23, 2026 · Tier A
  6. [6]The Police Credit Union AI Compliance Case Study | AurascapeAurascape · undated page, accessed October 23, 2026 · Tier A
  7. [7]AI Governance and Compliance Platform | AurascapeAurascape · undated page, accessed October 23, 2026 · Tier A
  8. [8]Aurascape Names Jim Walsh Chief Revenue Officer as Enterprise Demand for AI Security AcceleratesBusiness Wire · published August 3, 2026 · Tier A
  9. [9]Aurascape Unveils New Zero-Bypass MCP Gateway and Expands AI Security Platform for Enterprise Agents and Custom AI ApplicationsBusiness Wire · published March 17, 2026 · Tier A

Harmonic Security full record

  1. [1]harmonic.securityHarmonic Security · harmonic.security · undated page, accessed November 3, 2026 · Tier A
  2. [2]Harmonic Security Raises $50 Million Series B Enabling Safe AI Adoption for Millions More EmployeesBusiness Wire · businesswire.com · published October 14, 2026 · Tier A

Pluto Security full record

  1. [1]pluto.securityPluto Security · pluto.security · undated page, accessed October 16, 2026 · Tier A
  2. [2]About Us - Pluto SecurityPluto Security · undated page, accessed November 3, 2026 · Tier A
  3. [3]Enabling CISOs to say YES - Pluto SecurityPluto Security · undated page, accessed November 3, 2026 · Tier A
  4. [4]What Is AI Security Posture Management & What Does It Do? - Pluto SecurityPluto Security · undated page, accessed November 3, 2026 · Tier A
  5. [5]Webinar - Still saying no to AI tools because of security risks? - Pluto SecurityPluto Security · undated page, accessed November 3, 2026 · Tier A
  6. [6]Introducing PlutoniumPluto Security · published June 17, 2026 · Tier A
  7. [7]Pluto Security Emerges From Stealth With $42M in Funding to Help Enterprises Secure AI AdoptionFinanceWire (Markets Insider) · published October 13, 2026 · Tier B

WitnessAI full record

  1. [1]Unified AI Security and Governance Platform | WitnessAIWitnessAI · undated page, accessed September 27, 2026 · Tier A
  2. [2]Witnessai raises 58 million for global expansion and announces new ways to secure ai agents 302659319WitnessAI via PR Newswire · prnewswire.com · published January 13, 2026 · Tier A
  3. [3]Witnessai launches with guardrails for aiDark Reading · darkreading.com · published May 21, 2024 · Tier B
  4. [4]WitnessaiAppSec Santa · appsecsanta.com · published April 3, 2026 · Tier C

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