AGENCY LIST

Rule4

Boulder, Colorado, United States
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Security assessments, compliance audits, and incident response planning for regulated industries

Rule4, based in Boulder, Colorado, works across cybersecurity strategy, application security, cloud and network security, and incident response planning. Engagements extend into specialized areas including OT/ICS/SCADA assessments, medical device cybersecurity, and AI security assessment, alongside privacy controls assessment and data privacy strategy.

Compliance work spans CMMC and NIST 800-171, PCI DSS, HIPAA and healthcare/life sciences requirements, NIST 800-53 and FedRAMP, and ISO 27001, positioning the firm for clients in regulated sectors that need governance alongside technical security review. Rule4 states it has earned the trust of more than 250 organizations.

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SERVICES

Capabilities

Category

Cybersecurity

Services

What these services involve

Incident Response Planning
Incident Response Planning for cybersecurity buyers. Clear scope, measurable outcomes, and reliable delivery.
Penetration Testing
Penetration Testing for cybersecurity buyers. Clear scope, measurable outcomes, and reliable delivery.

Local service markets

How Rule4 scores 40 on Agency List

The Agency List Score rates each listing out of 100 across four equally weighted areas. It measures the strength of the agency's listing and public signals — not the quality of its work.

Presence & Maturity

22 / 25

How complete and how recently maintained this listing is.

  • Has a detailed written overview.
  • Has a tagline summarising what the agency does.
  • 6 of the core profile fields are filled in.
  • Profile details were updated recently.
  • No founding year on record.

Relevance & Capability

9 / 25

How clearly the agency's specialism and services are classified.

  • Assigned to a primary category.
  • No individual services listed.

Credibility & Trust

9 / 25

Contactability and verification signals that show a real business.

  • Listing ownership is not yet verified.
  • A working website is on record.
  • No contact address on record.
  • A phone number is on record.
  • Location is on record.

Authority & Proof

0 / 25

Independent proof of work: reviews, published projects and awards.

  • No published reviews yet.
  • No published project work yet.
  • No awards recorded.

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About this agency on Agency List

Rule4 is listed on Agency List as part of our global directory of professional agencies. Profiles are compiled using a combination of agency-submitted information, publicly available data, and Agency List classification systems.

This page reflects the most current information available for Rule4 and may evolve as additional data is verified or updated.

Local context

Rule4 operates in Boulder, Colorado, United States serving clients locally and beyond. Agency List organizes firms by geography to help buyers understand the distribution of agencies across regions and markets.

Service markets

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Country

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Data notes

Profile information is derived from agency submissions and public sources. Some attributes may be estimated and are updated over time as additional data becomes available.