We are SII Concatel

At SII Concatel, we face the challenges of digital transformation and innovation together with our clients on a daily basis.

Our IT Services offer

For more than 40 years, at SII Concatel we have been responding to all types of industries and sectors through IT services and solutions. We offer a comprehensive value proposition to face digital transformation and innovation challenges.


We are a united team that has a common goal: to build a scenario where quality, innovation, experience, effort, teamwork and proactivity are a daily constant.


Our main added value: people

At SII Concatel we work every day to attract and retain the best talent and the best people. People who also share our vision of the world and feel aligned with our values ​​and our philosophy.

Proud to work with…

Why SII Concatel?

We are #ITWorldChangers

  • Reliable and committed IT provider
  • Quality IT Services and Solutions
  • Hundreds of satisfied national and international clients
  • Thousands of engineers around the world
  • Main Certifications: ISO 20.000, ISO 45001, ISO 27001, ISO 14001, ISO 9001
  • Own methodology: Hypercube
  • Experts in agile methodologies
  • Competitive prices in Spain
  • High responsiveness
  • Time-to-Market
  • Sustainable Commitment: Ecovadis Platinum Certification

Learn more about us

Look what’s happening at SII Concatel!

SII Concatel at Diada TICWhat´s new
24 de November de 2022

SII Concatel participates and sponsors the Diada TIC 2022

SII Concatel sponsors, for the fifth consecutive year, the Diada TIC, focused this year on "Metaverse and new realities". In addition, we have actively participated…
SII group growthWhat´s new
15 de November de 2022

SII Group consolidates its upward trend and growth targets

SII Group maintains the positive dynamics of recent years and, in the first half of fiscal year 2022/2023, continues to strengthen with a growth of…
SII Concatel realiza Speed Dating con estudiantes del Campus 42 de TelefónicaWhat´s new
7 de November de 2022

SII Concatel holds a Speed Dating session with students from Telefónica Campus 42

SII Concatel participates in a rapid interview workshop with students of the educational project Campus 42 of the Telefónica Foundation.
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