Colt provides network and voice services to thousands of businesses around the world, allowing them to focus on delivering their business goals instead of underlying infrastructure. Customers include 18 of the top 25 bank and financial groups and 19 out of the top 25 companies in both global media and telecoms.

Colt operates across Europe, Asia and North America with connections into over 200 cities globally.

Colt in Spain

Colt has been present in the Spanish market since 1998 and currently employs around 900 people in the country, about 20% of our total workforce. Colt has deployed over 3,600 km of long distance and metro fibre, connecting over 2,600 buildings centred in Madrid, Barcelona and Valencia. Colt also has two data centres in Madrid and Barcelona, and connects to 25 in total. This helps Colt to support over 2,400 customer in Spain in sectors such as Banking, Public Sector, Pharmaceutical, Media and Entertainment, Travel and Sport.


What we offer

Colt has a wide portfolio of network and voice services which are delivered with industry leading customer service and security.

Network Services

• Managed Network Services

• Bandwidth and Ethernet Services

• Fibre Infrastructure and Wavelength Services

• Dedicated Cloud Access

Voice Services

• Enterprise voice services

PSTN and SIP trunking access and outbound calls, UC solutions including Conferencing, Inbound Services and cloud-based Contact Centre Services

• Wholesale voice services

World-wide call termination via TDM and VoIP interconnection service, Reseller solutions and tools, White Labelled Services and Number Hosting

Capital Markets

Network services include managed networking and a range of Capital Markets specific propositions including ultra-low latency services, market access, broker access and client network access services, market access to 53 cross-asset class venues and Colt PrizmNet, our financial extranet service.

Market Recognition

Colt has been recognised by Gartner for four consecutive year in its ‘Critical Capabilities for Pan-European Network Services’ report. The world’s leading information technology research and advisory company marked all of Colt’s capabilities in the Excellent Category, among the industry’s leading vendors.

The Gartner report provides an excellent industry barometer and is a trusted benchmark of performance. Colt’s recognition by Gartner is just one in a series of recent recognition and awards. Colt has won MEF Ethernet excellence awards for eleven consecutive years, celebrating success in five categories. It was also awarded at the Global Carrier Awards at Capacity Europe 2015 in the ‘Best Asian Project” for DCNet, “Best voice service innovation – developed market” for VoiceYou, and “Special Recognition Award: Best Strategic Acquisition”.

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