David John Leftley

Bloc Ventures Ltd. (Block Ventures) is an Independent Private Equity firm founded in 2012 by David John Leftley and Bruce Nick Beckloff. The firm is headquartered in London.

Tether Technology Ltd. provides security services. It offers platform for managing all physical security devices and locations. The firm serves the retail and restaurant, housing accessories, healthcare, cctv rental, and ATM security. The company was founded by Roman Gaufman and Regina Shmerlin on August 4, 2009 and is headquartered in London, the United Kingdom.

Zeetta Networks Ltd. develops marketing open platform networking solutions. Its flagship product, NetOS, a Network Operating System which offers a "USB-like", plug-n-play management of all connected network devices and enables the construction of virtual “network slices” for the deployment of B2B or B2C services such as Ultra-HD video distribution, City-wide Wi-Fi, Internet of Things (IoT) and M2M deployments. The company was founded by Reza Nejabati, Vassilis Seferidis, Mayur Channegowda and Dimitra Simeonidou and is headquartered in Bristol, the United Kingdom.

Paytia Ltd. specializes in telephone payment processing. The company was ffounded by Curtis Gregory Nash in 2016 and is headquartered in London, the United Kingdom.

Marmalade Technologies Ltd. provides cross-platform software development kit and game engine services. Its products include Marmalade SDK enables developers to deploy code across multiple platforms and devices from a single code base in C++, Lua, HTML or Objective-C; Marmalade Juice a new tool that lets customer port an existing Objective-C codebase to Android; Marmalade Quick provides a fast, flexible and open RAD environment that lets customer use Lua and Cocos2d-x to build 2d games; and Web Marmalade supports the creation of hybrid apps, using HTML5, CSS and JavaScript and packaged as native app installers, ready for deployment to the relevant app stores. The company was founded by Edward David Gilchrist, Eben Upton and Bruce Nick Beckloff in 1998 and is headquartered in London, the United Kingdom.

Vodafone Ventures Ltd (Vodafone Ventures) is a Venture Capital firm, a subsidiary of Vodafone Group Plc founded in 2000. The firm is headquartered in Newbury.

Cognia Cloud Ltd. develops cloud voice and data solutions. It provides analytics and storage processes on demand, simplifying communications compliance and monitoring across mobile and distributed workforces. The company was founded by Curtis Gregory Nash and Lois Melanie Nash December 23, 2002 and is headquartered in London, the United Kingdom.