CISO Tribune

Vendor comparison · 2 companies

Realm Security vs ThreatDefence

Realm Security sells a SOC-aware Security Data Pipeline Platform, abbreviated SDPP. ThreatDefence delivers a fully managed 24×7 SOC as a Service that combines its SecOps Platform with a team of cyber security experts who monitor, investigate and respond. CISO Tribune files both under SIEM. 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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  • Realm Security
  • ThreatDefence
Realm Security vs ThreatDefence: Products, Customers and Funding Compared
Realm SecurityRealm Security sells a SOC-aware Security Data Pipeline Platform, abbreviated SDPP.realm.securityThreatDefenceThreatDefence delivers a fully managed 24×7 SOC as a Service that combines its SecOps Platform with a team of cyber security experts who monitor, investigate and respond.threatdefence.com
What it sells
  • Realm Platform[1][2][3]A SOC-aware security data pipeline that connects any source and sends data to any destination.
  • Realm Clarity AI[1][5]Understands what each source produces and what each destination needs, then shapes the flow between them.
  • Detection Integrity[1][8]Proves that a data cut did not cost a detection.
  • Privacy Guard[1][8]Discovers and masks PII, PHI and PCI in transit.
  • SecOps Platform[2][3][4][5]A platform providing end-to-end coverage and threat detection, backed by an AI-enabled 24x7 SOC.
  • SOC as a Service[2]A fully managed 24×7 SOC that combines the SecOps Platform with a team of cyber security experts.
  • SIEM[1][5][6]A SIEM built for investigation that connects, enriches and keeps security events searchable.
  • Network Detection and Response[3]Network Detection and Response sensors and a deception toolset to discover lateral movement.
  • Compromise Assessment[8]A review of an environment to reveal existing or past intrusions and security weaknesses.
  • Cyber Risk Management[9]A solution that assists customers in proactively identifying security gaps in their environment.
  • Cyber Range[10]Cyber range solutions with simulations of cyber attacks for cyber security teams and students.
Categories
Headquarters
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Founded
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Ownership and funding
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Named customers
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Recent news
  • October 29, 2026Realm Security expanded its Realm Partner Program by adding Crush Security and ProCern Technology Solutions in North America.[11]
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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
Who it fits
Realm Security reports enterprise demand for vendor-neutral control over the telemetry feeding SIEMs, data lakes and AI agents in the security operations center. The company states that delivering value quickly for resource-constrained security defenders is at the core of its mission. Realm Security's partner program is aimed at resellers, MSSPs, technology advisors and cybersecurity consultancies. One partner type it names is an MSSP that integrates the Realm Platform into a fully managed data pipeline service.Not written yet
Last verified
November 5, 2026November 10, 2026

Where they overlap

  • Realm Security and ThreatDefence are both filed under SIEM.

Where they differ, field by field

  • Realm Security's primary category is Security data lakes and pipelines; ThreatDefence's is MDR and managed SOC.
  • Realm Security is also filed under Data security posture management. ThreatDefence is also filed under AI SOC analysts and Network detection and response.
  • Realm Security lists Realm Platform, Realm Clarity AI, Detection Integrity and Privacy Guard. ThreatDefence lists SecOps Platform, SOC as a Service, SIEM, Network Detection and Response, Compromise Assessment and 2 more.

What it sells: Realm Security

What Realm Platform does[1][2][3]
The Realm Platform is the SOC-aware security data pipeline. The Realm Platform connects any source and sends data to any destination. Realm manages the infrastructure while the customer's SOC owns the decisions.
What Realm Clarity AI does[1][5]
Clarity AI profiles every source at the field level and models what each destination can consume. Recommendations are shown with a match rate and run in a pending state against live data before they go active. Clarity AI does the analysis and the customer's team approves the changes.
What Detection Integrity does[1][8]
Detection Integrity proves that a data cut did not cost a detection. Realm checks every reduction against the customer's live detections.
What Privacy Guard does[1][8]
Privacy Guard masks sensitive data in transit without altering structure, so parsers and detection logic keep working. Authorized investigators can retrieve unredacted values from Data Haven.

What it sells: ThreatDefence

What SOC as a Service does[2]
ThreatDefence continuously monitors customer environments across cloud, network, endpoints, identity and applications. ThreatDefence analysts conduct scheduled and intelligence-led hunts to identify indicators of compromise, lateral movement, credential misuse and living-off-the-land activity. ThreatDefence customers have access to a dedicated portal with real-time dashboards, incident timelines, analyst notes, reporting and service visibility.
What Network Detection and Response does[3]
ThreatDefence offers Network Detection and Response sensors and a deception toolset to discover lateral movement. ThreatDefence network detection covers lateral movement and insider threats using session evidence and packet analysis. ThreatDefence agents connect network findings with endpoint and identity activity, helping analysts assess the scope and prepare targeted containment.
What Compromise Assessment does[8]
ThreatDefence offers a Compromise Assessment that helps reveal existing or past intrusions, identify vulnerabilities or weaknesses, and detect malicious activity, policy violations and security misconfigurations. ThreatDefence deploys sensors to collect real-time data from endpoints, cloud and network. ThreatDefence inspects an environment over an extended period of time to identify dormant malware or covert threat actors.
What Cyber Risk Management does[9]
ThreatDefence offers a Cyber Risk Management solution that assists customers in proactively identifying security gaps in their environment. ThreatDefence provides automated weekly and monthly reporting based on operational and compliance needs. ThreatDefence pinpoints vulnerable, exploitable or misconfigured systems in a customer network.
What Cyber Range does[10]
ThreatDefence offers cyber range solutions that provide simulations of cyber attacks for cyber security teams and students. ThreatDefence runs simulations on virtual replicas of critical infrastructure networks including power grids, train control systems and water treatment plants. The platform of ThreatDefence organizes trainees into groups dedicated to specific missions and objectives.

Questions about Realm Security and ThreatDefence

What do Realm Security and ThreatDefence sell?
Realm Security sells Realm Platform, Realm Clarity AI, Detection Integrity and Privacy Guard. ThreatDefence sells SecOps Platform, SOC as a Service, SIEM, Network Detection and Response, Compromise Assessment and 2 more.
Are Realm Security and ThreatDefence in the same category?
They share SIEM. Realm Security's primary category is Security data lakes and pipelines and ThreatDefence's is MDR and managed SOC.
Who are Realm Security and ThreatDefence sold to?
Realm Security reports enterprise demand for vendor-neutral control over the telemetry feeding SIEMs, data lakes and AI agents in the security operations center.
What have Realm Security and ThreatDefence announced recently?
October 29, 2026: Realm Security expanded its Realm Partner Program by adding Crush Security and ProCern Technology Solutions in North America.

About Realm Security

Realm Security sells a SOC-aware Security Data Pipeline Platform, abbreviated SDPP. The Realm Platform is the company's SOC-aware security data pipeline. The Realm Platform connects any source and sends data to any destination. Realm Security gives security teams independent control over their telemetry before it reaches the SIEM, data lake, or AI agent. Realm Security sits upstream of the SIEM, data lake and AI agent, shaping telemetry before it reaches any of them. Realm Security is owned by no SIEM or destination, so customers can switch or consolidate downstream tools later without re-instrumenting.[1][2][3]

Realm Security describes legacy pipelines as shuttling raw data logs between tools, leaving analysts buried in irrelevant telemetry and budgets consumed by SIEM ingestion costs. Realm Security cites the 2025 SANS SOC Survey, which found that 42% of SOCs send all incoming data into a SIEM, often without a retrieval or management plan. Realm Security states that pipeline tools are increasingly being acquired by the SIEM vendors whose growth depends on volume flowing into their platforms.[6]

Realm Clarity AI understands what each source produces and what each destination needs, then shapes the flow between them. Clarity AI profiles every source at the field level and models what each destination can consume. Recommendations are shown with a match rate and run in a pending state against live data before they go active. Clarity AI does the analysis and the customer's team approves the changes. When Clarity AI is trained on a source, the customer receives source-specific, personalized reduction and redaction recommendations, vetted by Realm's security research team and shown with a match rate before the customer acts.

Realm Security reduces, enriches, redacts and transforms data on the rules a customer approved. Realm Security strips low-value, noisy telemetry before it reaches the SIEM. Realm Security injects context as logs pass through, so events arrive carrying the where and who. Realm Security normalizes disparate vendor formats into one schema, then shapes the same source differently for each destination. Privacy Guard discovers and masks PII, PHI, and PCI in transit without altering structure, so parsers and detection logic keep working. Authorized investigators can retrieve unredacted values from Data Haven. Data Haven keeps a complete, searchable copy and allows any event to be resupplied. Telemetry cut from the SIEM is retained in Data Haven as a complete, searchable copy. Detection Integrity proves that a data cut did not cost a detection. Realm checks every reduction against the customer's live detections.[1][3][8]

Realm Security ingests data across firewall, endpoint, identity, email and cloud sources. Any source that can deliver over a standard transport, such as syslog, an HTTP webhook, or S3, can connect using Custom CEF, JSON, or Syslog. For sources Realm pulls from, such as Salesforce, Realm manages the integration for the customer. A format-agnostic Collector and managed parsing onboard new sources without engineering on the customer's side. Schema drift detection catches source changes before they break parsing. Realm sends to Splunk, Microsoft Sentinel, Cortex XSIAM, CrowdStrike NG-SIEM and Sumo Logic, along with data lakes and archives.

Realm Security is deployed in about a week and is run by the SOC team itself. Realm manages the infrastructure while the customer's SOC owns the decisions. Realm automates filtering rule creation, configuration, routing decisions, and much more. One customer connected FortiGate firewalls feeding Sumo Logic and let Clarity AI shape the stream for what the destination needed. A Fortune 500 materials science company selected Realm to reduce SIEM ingestion costs without sacrificing detection coverage and to prepare its data layer for AI-driven SOC workflows.[1][6][8]

Realm Security is headquartered in Boston. Realm Security was founded by Peter Martin, Jeff Kraemer and Sanket Choksey. The founders played roles in creating, launching and scaling technology solutions for Carbon Black, Rapid7, Confer Technologies and Cisco Systems. Realm Security, Inc. raised $5 million in seed funding from Accomplice and Glasswing Ventures, announced September 12, 2024. Realm Security announced a $15 million Series A funding round led by Jump Capital, with participation from Glasswing Ventures and Accomplice. Realm Security announced a $2M strategic investment from Presidio Ventures, the corporate venture arm of Japanese-headquartered Sumitomo Corporation. Realm Security plans to use the investment to accelerate its Asia-Pacific expansion through channel partners and strengthen its executive team. Realm Security expanded its Realm Partner Program with the addition of Crush Security and ProCern Technology Solutions in North America. Crush Security is a cybersecurity VAR, and ProCern is an MSSP that integrates the Realm Platform into a fully managed data pipeline service.[1][2][3][6][10]

Realm Security on the record

Sources

Realm Security full record

  1. [1]realm.securityRealm Security · realm.security · undated page, accessed November 5, 2026 · Tier A
  2. [2]Realm Expands Channel Program with Crush Security and ProCernRealm Security · published October 29, 2026 · Tier A
  3. [3]Realm Security | The SOC-Aware Security Data PipelineRealm Security · undated page, accessed November 10, 2026 · Tier A
  4. [4]Realm.Security Doubles Customers in Q1 2026 | Realm.SecurityRealm Security · published June 3, 2026 · Tier A
  5. [5]Integrations: Any Source to Any SIEM or Lake | RealmRealm Security · undated page, accessed November 10, 2026 · Tier A
  6. [6]Realm.Security Raises $15 Million in Series A Funding - Realm.SecurityRealm Security · published October 8, 2025 · Tier A
  7. [7]Realm.Security Emerges from Stealth, Raises $5M to Manage Explosion of Cyber Security DataRealm Security · published September 12, 2024 · Tier A
  8. [8]Realm Platform: The SOC-Aware Security Data PipelineRealm Security · undated page, accessed November 10, 2026 · Tier A
  9. [9]Realm.Security Caps 2025 with $2M Strategic Investment from Presidio Ventures - Realm.SecurityRealm Security · published December 11, 2025 · Tier A
  10. [10]About Realm Security | Built by Security Data ExpertsRealm Security · undated page, accessed November 10, 2026 · Tier A
  11. [11]Realm Security Expands Channel Program with Crush Security and ProCern as Demand for Independent Data Pipelines Accelerates in AI EraPRNewswire · published October 29, 2026 · Tier A

ThreatDefence full record

  1. [1]threatdefence.comThreatDefence · threatdefence.com · undated page, accessed November 10, 2026 · Tier A
  2. [2]24x7 SOC as a Service | Managed SOC Monitoring and ResponseThreatDefence · undated page, accessed November 11, 2026 · Tier A
  3. [3]Enterprise Security Operations Platform | 24x7 SOC and SIEMThreatDefence · undated page, accessed November 11, 2026 · Tier A
  4. [4]24x7 Security Operations Team | ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A
  5. [5]AI-Enabled Security Operations Platform and 24x7 SOC | ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A
  6. [6]SIEM as a Service | Next Generation Cloud SIEM | ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A
  7. [7]Industrial SecOps Platform for OT Security | ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A
  8. [8]Cyber Security Compromise Assessment | Breach Detection & Forensics - ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A
  9. [9]Cybersecurity Risk Management Services | Enterprise Risk Protection | ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A
  10. [10]Cyber Security Simulation & Attack Simulation Platform | ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A
  11. [11]Evidence-Based Security for Financial Services | ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A

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