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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

What Clients Have Said

Sigma Software Security is noted for providing good value for cost, particularly in achieving ISO and SOC certifications. Clients have expressed satisfaction with project management, timely delivery, and the ability to embed security into processes without retrofitting.

This summary is based on verified Clutch reviews.

Most Common Project Size

Confidential based on 2 reviews
< $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

Select a service to see pricing information

Overall Review Rating

5.0
  • Quality

    5.0 /5
  • Schedule

    5.0 /5
  • Cost

    5.0 /5
  • Willing to Refer

    5.0 /5
See all 2 Reviews

Sigma Software Security Reviews

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Compliance Consulting Services for Software Company

  • Business Continuity Management Compliance Consulting
  • Confidential
  • May 2024 - Mar. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"We are fully satisfied with the results provided."

Oct 15, 2026
CEO, CTO & Co-Founder, CIGen
Maryan Savka
Verified
  • Information technology
  • Lviv, Ukraine
  • 11-50 Employees
  • Online Review
  • Verified

Sigma Software Security provided ISO 27001 certification preparation, including a final certification audit for a software company. Deliverables included policies, assessments, a review document, and training.

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 1-2 of 2 Reviews

Verified means Clutch independently confirmed Sigma Software Security is a legally registered business,
financially sound (Creditsafe: Very Low Risk), and backed by 2 verified client reviews averaging 5.0 stars.

Learn More
Verified Client Reviews
2
Overall Review Rating
5
Source
Clutch
Last Updated
October 15, 2026

Business Entity

Business Entity Name Sigma Software Holding Ltd
Source Companies House
Jurisdiction of Formation England, UK
Date of Formation April 10, 2024
Status Active
Last Updated October 10, 2026
ID 15631718

Credit Report Results

International Credit Risk Assessment Very Low Risk
Source Creditsafe
Last Updated October 10, 2026
Learn More About The Clutch Verification Process

Locations (2)

41 Devonshire Street London, England W1G 7AJ

10 - 15

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