Self-Hosted GRC Platforms: SimpleRisk vs MONARC vs Eramba — Open Source Governance, Risk & Compliance 2026

Managing governance, risk, and compliance (GRC) is a critical function for organizations of all sizes. From ISO 27001 certification to GDPR compliance, having a structured platform to track risks, manage controls, and document compliance activities streamlines audits and reduces exposure. While enterprise GRC suites like RSA Archer and ServiceNow GRC command six-figure price tags, the open-source ecosystem offers capable self-hosted alternatives that put you in control of your compliance data.

Why Self-Host Your GRC Platform?

GRC data is among the most sensitive information in any organization — it contains detailed records of vulnerabilities, security gaps, compliance failures, and risk assessments. Hosting this data on a third-party SaaS platform introduces supply chain risk: if the vendor is breached, your risk register becomes public. Self-hosting keeps your compliance data within your own infrastructure, under your own access controls.

Self-hosted GRC platforms also eliminate per-user licensing costs. As your organization grows and more stakeholders need access to risk dashboards and compliance reports, your costs remain flat — you pay only for the server resources. This is particularly valuable for consulting firms managing multiple clients or large enterprises with hundreds of audit participants.

For organizations already running self-hosted infrastructure, integrating a GRC tool into your existing monitoring stack creates a unified view of risk. Your vulnerability scanner can feed findings directly into the GRC platform, and your incident response playbooks can reference documented controls — all within a single self-managed ecosystem.

Comparison: SimpleRisk vs MONARC vs Eramba

SimpleRisk

SimpleRisk is a PHP-based GRC platform focused on practical risk management. It supports multiple compliance frameworks out of the box, including NIST 800-53, ISO 27001, GDPR, and HIPAA. The platform provides risk scoring, mitigation tracking, and automated review reminders. SimpleRisk can be deployed as a standalone web application and integrates with external authentication providers via LDAP and SAML.

Deploying SimpleRisk:

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# Clone the repository
git clone https://github.com/simplerisk/code.git simplerisk
cd simplerisk

# Start with Docker
docker run -d \
  --name simplerisk \
  -p 80:80 \
  -e DB_HOST=mysql \
  -e DB_NAME=simplerisk \
  -e DB_USER=simplerisk \
  -e DB_PASS=securepassword \
  simplerisk/simplerisk:latest

MONARC

MONARC (Method for an Optimised aNAlysis of Risks) was developed by the Luxembourg National Cybersecurity Competence Center (NC3). It implements the ISO 27005 risk management methodology with a unique approach to modeling information assets, their dependencies, and threat scenarios. MONARC’s strength lies in its structured asset-based threat modeling, making it particularly suitable for organizations that need detailed risk analysis rather than just a risk register.

Deploying MONARC:

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# Pull the official Docker image
docker pull monarc/monarc:latest

# Run MONARC
docker run -d \
  --name monarc \
  -p 8080:80 \
  -e DB_HOST=mysql \
  -e DB_NAME=monarc \
  -e DB_USER=monarc \
  -e DB_PASS=securepassword \
  monarc/monarc:latest

Eramba

Eramba is a web-based GRC application built with CakePHP. It provides an intuitive interface for managing compliance requirements, conducting risk assessments, and tracking security exceptions. Eramba ships with pre-built compliance packages for ISO 27001, PCI-DSS, and GDPR, allowing organizations to quickly map their controls to regulatory requirements. The Docker Compose deployment makes it the easiest to get started with among the three.

Deploying Eramba with Docker Compose:

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version: "3.8"
services:
  eramba:
    image: digitorus/eramba:latest
    ports:
      - "8080:80"
    environment:
      - DATABASE_URL=mysql://eramba:securepassword@mysql:3306/eramba
      - SECURITY_SALT=change-this-random-string
    depends_on:
      - mysql
    volumes:
      - eramba_data:/var/www/html/app/webroot/files

  mysql:
    image: mysql:8.0
    environment:
      - MYSQL_ROOT_PASSWORD=rootpassword
      - MYSQL_DATABASE=eramba
      - MYSQL_USER=eramba
      - MYSQL_PASSWORD=securepassword
    volumes:
      - mysql_data:/var/lib/mysql

volumes:
  eramba_data:
  mysql_data:

Choosing the Right GRC Platform

The choice between these platforms depends on your organization’s compliance maturity and methodology preferences. If you need broad compliance framework support with simple risk scoring, SimpleRisk provides the most accessible entry point. For organizations requiring rigorous, methodical risk analysis following ISO 27005, MONARC’s structured asset-based approach is unmatched. Eramba strikes a balance with its polished interface and pre-built compliance packages, making it ideal for teams that want to get started quickly without deep methodology expertise.

All three platforms support multi-user collaboration, automated notifications, and report generation — the core features needed for a functional GRC program. For organizations in regulated industries, hosting these tools internally ensures sensitive risk data never leaves your network.

For related security and compliance tools, see our self-hosted vulnerability management guide and server security auditing comparison. For cloud security auditing across your managed infrastructure, our cloud security audit tools guide provides complementary tooling.

Deployment Security Best Practices

When self-hosting a GRC platform that contains your organization’s complete risk register and compliance evidence, security hardening is non-negotiable. Start by placing the application behind a reverse proxy with TLS termination — tools like Caddy or Nginx with Let’s Encrypt handle certificate management automatically. Enforce HTTPS-only access and configure HTTP Strict Transport Security (HSTS) headers to prevent downgrade attacks.

Database encryption at rest is essential. Use MySQL’s InnoDB tablespace encryption or PostgreSQL’s TDE extensions to ensure that even if the database files are compromised, the risk data remains unreadable. For SimpleRisk and MONARC, which use PHP sessions, configure Redis-backed session storage with encryption to prevent session hijacking. Eramba’s CakePHP framework supports encrypted cookie sessions out of the box.

Implement network segmentation by placing the GRC application and database on separate VLANs or using container network isolation. Restrict database access to only the application server’s IP address. Set up automated backups with encryption — a daily mysqldump encrypted with GPG and uploaded to an offsite location ensures you can recover from infrastructure failures without losing compliance evidence. Regular backup restoration tests are critical: an untested backup is not a backup.

Access control should follow the principle of least privilege. Integrate with your organization’s SSO provider (LDAP, SAML, or OIDC) rather than using local accounts. Configure role-based access so that risk assessors, control owners, and auditors see only the data relevant to their responsibilities. Enable audit logging to track who accessed which risk records and when — this is often a specific requirement during ISO 27001 and SOC 2 audits.

Regular penetration testing of the GRC application itself should be part of your security program — the platform that stores your vulnerabilities must not become one.

FAQ

Can these GRC platforms integrate with vulnerability scanners?

Yes, all three platforms support API-based integration or manual data import. SimpleRisk has the most mature API, allowing automated ingestion from tools like OpenVAS, Nessus, and OWASP ZAP. MONARC supports JSON import for external risk data. Eramba provides CSV import capabilities for bulk data loading from security tools.

How do these compare to enterprise GRC tools like RSA Archer?

Enterprise GRC suites offer more advanced workflow automation, board-level reporting, and out-of-the-box integrations with hundreds of tools. However, the open-source alternatives cover 80-90% of the functionality that most organizations actually use — risk registers, control mapping, assessment workflows, and compliance reporting — at zero licensing cost.

Do I need a dedicated server to run these?

A modest VPS with 2 GB RAM and 2 vCPUs is sufficient for teams of up to 50 users. All three platforms run on the LAMP stack (Linux, Apache/Nginx, MySQL, PHP) and have low resource requirements. For larger deployments, scaling the database and adding a reverse proxy cache is recommended.

Can these be used for SOC 2 or ISO 27001 audits?

Absolutely. All three platforms support the evidence collection, control documentation, and risk assessment workflows required for SOC 2 Type II and ISO 27001 certification. SimpleRisk and Eramba include specific compliance package templates for these standards.

What about backup and disaster recovery?

The critical data is stored in MySQL/MariaDB databases. Standard database backup procedures (mysqldump with cron, or database replication) are sufficient. For Eramba, also back up the file uploads volume. All three can be restored to a fresh deployment by restoring the database dump.

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