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Expertise, Speed, Customer Focus

Sigma Software Security

Most security firms only know security. We know how systems are actually built - so our solutions fit your business, not the other way around. Sigma Security is a global team of security engineers, consultants, compliance managers, and pentesters, covering everything from a single pentest to full security transformation.

--What We Do--

We help software companies, SaaS platforms, manufacturers, and regulated businesses close security gaps and meet compliance obligations.

  • Min project size
    $5,000+
  • Hourly rate
    Undisclosed
  • Employees
    1,000 - 9,999
  • Locations
    London, England
  • Year founded
    Founded 2002

2 Locations

  • London , England
  • Warszawa , Poland

Service Lines
Compliance Consulting
35%
Industries
HVAC
25%
Medical
25%
Construction
15%
Financial services
15%
Manufacturing
15%
Energy & natural resources
5%
Clients
Midmarket ($10M - $1B)
60%
Small Business (<$10M)
30%
Enterprise (>$1B)
10%

Pricing Snapshot

Min. project size $5,000+
Avg. hourly rate Undisclosed
Rating for cost 5 /5

Most Common Project Size

Confidential based on 1 review
< $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

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Highly Rated Similar Providers

Overall Review Rating

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  • Quality

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  • Schedule

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  • Cost

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  • Willing to Refer

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Sigma Software Security Reviews

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Cloud & Compliance Consulting for Media Tech Company

  • Cloud Consulting & SI Compliance Consulting
  • Breach Detection & Incident Response Cloud Security Compliance Testing Cybersecurity Consulting GDPR Compliance Consulting HIPAA Compliance Consulting Performance Testing Regression Testing Stress Testing Vulnerability Management
  • Confidential
  • Sep. 2019 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They bring proactive ownership, anticipating risks and keeping our systems audit-ready year-round."

Sep 1, 2026
CIO & EVP, DanAds
Johan Liljelund
Verified
  • Information technology
  • Stockholm, Sweden
  • 51-200 Employees
  • Online Review
  • Verified

Sigma Software Security provides cloud and compliance consulting for a media tech company. The team has handled the client's AWS migration and assists in meeting ISO 27001 and SOC 2 certification requirements.

Showing 1-1 of 1 Reviews

Locations (2)

41 Devonshire Street LondonEngland W1G 7AJ

10 - 15

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