Your Secure Network

With the average cost of a data breach reaching $3.92 million, and DDoS attacks increasing by 967% this year alone, there's never been a more important time to secure your network.

As a worldwide network and communications service, as well as a leader in the Cybersecurity space, we've mapped out some of the most common connections for a modern enterprise - showing why a holistic approach, with key vulnerability touchpoints, is an essential part of any IT security strategy:


Are you Colt connected?

Colt provides world-class network and communications services to information intensive businesses across Europe, Asia and North America. Read our story »

Our global network services are delivered on our highly available and secure network that spans four continents with Colt-owned infrastructure in 32 countries.

The Colt IQ Network is a 100Gbps optimised intelligent network distributed to 900+ data centres and carrier hotels around the world, providing best in class service and optimised for SDN, NFV and cloud services.

Talk to a Colt advisor about connecting your business to the award-winning Colt IQ Network.

Our IQ Network spans:


major cities around the world


dense metropolitan area networks


data centres


buildings with direct fibre connections

Fibre Availability Checker

Check your connectivity to the Colt IQ Network

What makes us different?

Colt is your one-stop shop for network and voice services.

  • We deliver a harmonised service portfolio, with a consistently excellent customer experience maintained across every country and service
  • We operate our own carrier-grade network - with automated processes and committed service levels
  • We offer a unique combination of technical, process and regulatory expertise in Europe

"The Colt infrastructure is robust, Colt controls it end-to-end, and we get excellent support from our account and service managers who really understand our business."

Amanda Thomas

VP Telecoms EMEA, Intercall

"The overall evaluation of the service received is positive in two ways: first, due to the technical quality of the product in terms of its strength, consistency and security, and second, in terms of the advice and assistance received during both the pre- and post-sales stages."

Javier Bartolome

Technology Director, IMSolutions

"Colt has been a real partner throughout the years we've been working together, always ensuring that its services have kept pace with growth in our business. The people I deal with directly at Colt understand my needs. We have a smooth, efficient relationship."

Marc Conte

SVP of IT, Louvre Hotels

"We know that Colt focuses on enabling its customers to meet their goals, rather than purely technological aspects of any project. This philosophy fits excellently with the service understanding of the [Berlinale] festival"

Dieter Kosslick

Director, Berlinale

Our partner ecosystem

Digital transformation is driving change across industries - particularly in the diverse new ways to manage information and data. Doing it well is a major challenge for many organisations.

To help our customers leverage this change, Colt has built a very strong ecosystem of partner organisations. Our Partner Network enables us to be disruptive in our capabilities and helps us drive high-bandwidth adoption for our customers - so they can work faster and in more locations.

PartnerEcosystem (1)
Featured blog

Laying the foundations for 5G and the IoT

5G promises much in terms of revenues and new use cases, but for this to be realised it will require an evolution in network architecture and this has significant implications for the access, metro and core network.

Featured case study

Case study – Alpargatas

Alpargatas turned to Colt to provide a Virtual Private Network (VPN) that would support their international growth in Europe and unify the communications between their head office and other office locations.

Featured solution
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ESMIG (T2-T2S consolidation)

Since 2012, SIA, in collaboration with Colt, has been the provider of Eurosystem infrastructure access services and boasts a robust track record in delivering mission critical services to the European financial community.