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Industry Internet & Communications
Successor Pulsant
Founded 1996 (as edNET)
Headquarters Edinburgh
Key people
Mark Howling, Nigel Shaw, Matt Lovell, Graeme MacKenzie
Products Broadband, Server Hosting, Server Co-location, Private Cloud, Managed Hosted Applications, VoIP
Revenue £46.8m
Number of employees
Website Pulsant

Lumison was a UK Managed Services Provider based in Edinburgh, Scotland from 2004 to 2011. It was known as edNET from 1995 to 2004, and from 2011 now operates under the brand Pulsant.

They primarily offered fully managed network solutions and hosted products to SMEs.


Lumison was founded in Leith as edNET in 1996, where its head office remains. It rebranded to the name Lumison in August 2004, and opened a 10,000-square-foot (930 m2) dedicated datacentre on a greenfield site in Newbridge, Edinburgh in October 2004 and added a 15,000-square-foot (1,400 m2) London Datacentre in Croydon, South London in 2008. This enabled Lumison to provide additional rackspace for managed hosting, dedicated servers, virtualised servers and colocation (colo).

In October 2010, a majority stake in Lumison was acquired by Bridgepoint Development Capital in order to fuel growth from its existing position as a managed IT services provider into a mid-market IT services firm in the UK.[1] Further growth came through the acquisition in 2011 of three colocation services companies: Blue Square Data, DediPower and ScoLocate. The business has since rebranded as Pulsant. The company now has a turnover of approximately £30m with 130 staff across 5 UK locations. There are 8 data centres in UK and sites in United States, Amsterdam, and Hong Kong.


The Lumison network was based on a Juniper powered IP backbone and Cisco switching fabric in its datacentres and PoPs (see below). It operated a diverse core IP network (AS12703) which peers at LINX and LIPEX. Lumison maintained their own VoIP network which included a SS7 interconnect with BT (with voice traffic being terminated as SIP using Cisco hardware) as well as a new BT 21CN pure-IP interconnect. Lumison was a registered telecoms operator with Ofcom and operated several geographic and non-geographic number blocks in the UK.

Hosted Products[edit]

Lumison was a Microsoft Gold Certified Partner, providing managed applications, hosting and networks. Microsoft Exchange 2007 and OCS were provided on a Hyper-V virtualised platform enabling rapid provisioning and under-pinned by 24x7 support ensuring maximum service uptime and response. Microsoft Office Communication Server (OCS), BlackBerry Enterprise Server (BES), Microsoft Sharepoint, and Microsoft Dynamics CRM were also available.

Managed hosting services included Microsoft Windows 2008 and Red Hat Enterprise LAMP variants.

Broadband & Connectivity[edit]

Lumison provided standard BT Wholesale ADSL, ADSL2+ (21CN) and SDSL products for broadband access. It had also privately unbundled a handful of BT exchanges in Edinburgh & Glasgow. In these areas they offered low-contention 2Mbit/s SDSL and un-contended 5 and 10Mbit/s EFM. It also provided Internet access via multi-carrier leased line or MetroEthernet / LAN Extension.

Points of presence[edit]

Lumison operated their core network from their own datacentres in Edinburgh and Croydon as well as Telehouse East and Telehouse Metro in London's Docklands. It had an additional small presence in Manchester that services a transit connection to the USA.


  1. ^ "Bridgepoint Development Capital Invests to Fuel Growth For Lumison". Lumison. Archived from the original on 2011-08-09. Retrieved 2014-07-23. 

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