Insights

Strong Global Presence Thales operates in 148 countries with a large workforce of cybersecurity experts, providing ample opportunities for expanding sales efforts across diverse international markets and leveraging its established footprint to introduce tailored security solutions to multinational clients.

Recent Acquisition Momentum Following recent acquisitions including S21sec by Thales for $130M, there is a strategic emphasis on expanding cybersecurity capabilities; this ongoing M&A activity presents opportunities to offer complementary security services and innovative solutions to newly integrated clients.

Diverse Industry Focus S21sec serves critical sectors like transportation, aerospace, defense, government, and finance; targeting these high-security, regulation-heavy industries can enable sales teams to position advanced, compliance-driven cybersecurity products to organizations with urgent security needs.

Comprehensive Service Portfolio With offerings spanning consulting, risk assessment, technology integration, and 24/7 detection and response from multiple SOCs, there are opportunities to upsell or cross-sell specialized managed security services tailored to clients seeking end-to-end cybersecurity coverage.

Mid-Range Revenue Potential With annual revenues between $10M and $25M, S21sec presents a growth-stage client profile ideal for introducing scalable, flexible solutions that can grow with their expanding cybersecurity demands, especially in cloud security, compliance, and threat detection segments.

S21sec Tech Stack

S21sec uses 8 technology products and services including Ansible, Thales, Infoblox, and more. Explore S21sec's tech stack below.

  • Ansible
    Configuration Management
  • Thales
    Data Security
  • Infoblox
    Domain Name Services
  • Palo Alto Networks
    Network Security
  • PHP
    Programming Languages
  • Google
    Search Engines
  • Yoast SEO
    Search Engines
  • VMware
    Virtualisation Software

S21sec's Email Address Formats

S21sec uses at least 2 format(s):
S21sec Email FormatsExamplePercentage
FLast@s21sec.comJDoe@s21sec.com
91%
First@s21sec.comJohn@s21sec.com
4%
FirstLast@s21sec.comJohnDoe@s21sec.com
2%
FL@s21sec.comJD@s21sec.com
1%
First.Last@s21sec.comJohn.Doe@s21sec.com
1%
FMLast@s21sec.comJMDoe@s21sec.com
1%

Frequently Asked Questions

Where is S21sec's headquarters located?

Minus sign iconPlus sign icon
S21sec's main headquarters is located at 1 c. de Emilio Vargas Planta 2º Humanes de Madrid, Community of Madrid 28043 Spain. The company has employees across 4 continents, including EuropeNorth AmericaAsia.

What is S21sec's official website and social media links?

Minus sign iconPlus sign icon
S21sec's official website is cds.thalesgroup.com and has social profiles on LinkedInCrunchbase.

What is S21sec's NAICS code?

Minus sign iconPlus sign icon
S21sec's NAICS code is 5415 - Computer Systems Design and Related Services.

How many employees does S21sec have currently?

Minus sign iconPlus sign icon
As of March 2026, S21sec has approximately 318 employees across 4 continents, including EuropeNorth AmericaAsia. Key team members include Ceo: P. E.Cto: I. U. B.Chief Operating Officer: P. L.. Explore S21sec's employee directory with LeadIQ.

What industry does S21sec belong to?

Minus sign iconPlus sign icon
S21sec operates in the Computer and Network Security industry.

What technology does S21sec use?

Minus sign iconPlus sign icon
S21sec's tech stack includes AnsibleThalesInfobloxPalo Alto NetworksPHPGoogleYoast SEOVMware.

What is S21sec's email format?

Minus sign iconPlus sign icon
S21sec's email format typically follows the pattern of FLast@s21sec.com. Find more S21sec email formats with LeadIQ.

When was S21sec founded?

Minus sign iconPlus sign icon
S21sec was founded in 2000.

S21sec

Computer and Network SecurityCommunity of Madrid, Spain201-500 Employees

Thales delivers cybersecurity products and services that keep people and assets safe, giving organisations confidence in the security of their digital journeys. As organisations turn to cloud and SaaS-based technologies, they are searching for smarter ways of reinforcing trust and resilience in their processes and infrastructures.

Drawing on a global team of 6,000 cybersecurity experts and developers, we protect organisations by identifying, detecting and responding to the growing array of cyber threats. Our portfolio protects identities and data, along with all the paths that lead to it, encompassing services that include compliance and governance audits, threat detection and penetration tests. Thales is a global leader in cybersecurity - no.1 in data security - generating annual revenues in excess of €2 billion in this domain and operates in 148 countries worldwide. 

Building on this and on the expertise we have in industrial and critical systems, we deploy our service offering more specifically in the fields of transportation, aerospace, defence, government administrations, and finance in three operating models: 

• Cybersecurity Consulting and Architecture: Aimed at deploying a cybersecurity strategy adapted to the business and regulatory challenges of clients by taking the threat context (risk-based approach) into account: Security policies, audits, risk analyses, penetration tests, system certification. 

• Cybersecurity Solutions Integration: Aimed at deploying technologies adapted to the challenges of organisations and at protecting their assets: protection of data, industrial infrastructure, and information systems. 

• Detection and Response Services: Delivered from 8 Security Operations Centres (SOCs) around the world, these services detect attacks against monitored systems 24/7, and respond to them using our rapid intervention forces.

Section iconCompany Overview

Headquarters
1 c. de Emilio Vargas Planta 2º Humanes de Madrid, Community of Madrid 28043 Spain
NAICS Code
5415 - Computer Systems Design and Related Services
Founded
2000
Employees
201-500

Section iconFunding & Financials

  • $10M$25M

    S21sec's revenue is estimated to be in the range of $10M$25M

Section iconFunding & Financials

  • $10M$25M

    S21sec's revenue is estimated to be in the range of $10M$25M

Ready to create more pipeline?

Get a demo and discover why thousands of SDR and Sales teams trust
LeadIQ to help them build pipeline confidently.

© LeadIQ, Inc. All rights reserved.