Brian Sylvester

Eden Ventures Ltd. (Eden Ventures) is a venture capital firm founded in 2001 by Mark Farner and Charles Grimsdale. The firm is headquartered in London, United Kingdom.

Brunswick Ltd. is a British company that leases and operates real estate properties. The private company is based in Plymouth, UK. The company was founded in 2006.

BH Holdings GP LLC engages in the provision of technology related services. The company is headquartered in Greenwich, CT.

Bullhorn, International Ltd. develops cloud-based customer relationship management solutions for companies in service-based industries. The company was founded by Papas Arthur and is headquartered in London, the United Kingdom.

Portfolio Science, Inc. provides risk analysis tools for hedge funds, prime brokers, fund admins, and execution providers. The private company is based in New York, NY. The company's RiskAPI system offers comprehensive and dynamic portfolio risk analysis for various asset classes, including equities, futures, FX, sovereign debt, corporate bonds, interest rate swaps, and credit default swaps.

Career Collaborative, Inc. provides social services. The non-profit company is based in Boston, MA. The company was founded by Susan Fox Schiro. Susan P. Yule has been the CEO of the company since 2016.

Bullhorn, Inc. provides cloud-based customer relationship management (CRM) and operations solutions for the staffing industry. It products include applicant tracking system, business intelligence, CRM, pulse, and VMS integration. The company was founded by Roger Colvin, Barrett B. Hinckley, and Arthur Papas in 1999 and is headquartered in Boston, MA.

VoiceVault Ltd. provides biometric verification security and identity management products. Its products include password reset, caller and web authentication, payment verification, and voice sign. The company was founded in 2005 and is headquartered in Melville, NY.

Sigma Systems (U.K.) Ltd. provides management enterprise software. The company was founded by Simon Muderack and Catherine Michel in October 2003 and is headquartered in London, the United Kingdom.

Truphone Ltd. provides cellular services. It offers Tru, a GSM SIM based service that helps international business by charging local rates and low cost international calls. The company was founded by James Peter Tagg, Alistair Campbell, and Alexander Straub on March 26, 2001 and is headquartered in London, the United Kingdom.

IPL Information Processing Ltd. operates as a British dormant company.

Apertio Ltd. provides subscriber-centric networks for mobile, fixed and converged telecommunications operators. Its software application suite, Apertio One, delivers a single, open, subscriber-centric architecture for current and new generation networks. The company was founded by Paul J. Magelli Jr., Geoffrey Phillips, Kevin Wakefield, Paul Donnelly, Wallace P. Ascham and Michael Welbourne in 2002 and is headquartered in Bristol, the United Kingdom.

NewVoiceMedia Ltd. provides cloud contact centre solutions. It offers mobile and home working, moving to the cloud, inbound call center, small business, and disaster recovery solutions. The company was founded by Ashley Unitt and Richard Pickering in 2000 and is headquartered in Basingstoke, the United Kingdom.

VISIONOSS, Inc. provides service delivery and management software. Its products includes VOSS-4-UC, M2UC, and VOSS Assurance. The company was founded by Henry Barton, Christopher May, Stefan Peters, Ian Middleton and Derek Lipscombe in 2003 and is headquartered in Richardson, TX.

Part of International Business Machines Corp., Metrica Systems Ltd. designs and makes management software for wireless networks. The company is based in London, UK. The British company was founded by Mark Farmer. Metrica Systems was acquired by Vallent Corp. from ADC Telecommunications, Inc. on February 28, 2006.

VisionOSS Ltd. develops solutions for businesses with IP telephony and unified communications requirements. It provides web-based administration, lifecycle and service management, business process orchestration, data abstraction, and communication architecture technologies. The company was founded by Stefan Peters, Ian Middleton, Derek Lipscombe, Christopher May and Henry Barton on March 19, 2003 and is headquartered in Reading, the United Kingdom.

Ontology-Partners Ltd. develops software solutions for the telecommunications industry. It offers Ontology 3, a semantic search product that finds and aligns business entities held across operational, business and infrastructure systems providing an enterprise-wide view of customers, services, and network assets. The firm also provides ontology intelligent applications, a suite of core applications for users in network operations, customer care, finance, sales and marketing. The company was founded by Benedict Enweani and Leo Zancani in 2005 and is headquartered in London, the United Kingdom.

Erevena Ltd. provides staffing and recruiting services. The private company is located in the UK.