David Shillingford

Columbia Capital LLC (Columbia Capital) is a venture capital firm founded in 1989 by Dave P. Mixer. The firm is headquartered in Alexandria, Virginia.

Mpower Holding Corp. provides broadband data and voice communication services to business and wholesale customers. It offers local and long distance voice services, as well as internet access, voice over internet protocol telephony, data services, web hosting, and network access services. The company was founded in 1996 and is headquartered in Pittsford, NY.

MetroPCS Communications, Inc. provides facilities based wireless broadband mobile communications. Its products include voice services, data services, custom calling features and advanced handsets. The voice services allow customers to place voice calls and receive calls from any telephone in the world and its data services include text messaging services, multimedia messaging services, mobile Internet access, mobile instant messaging, location based services, social networking services, push e-mail, multimedia streaming and downloads. The custom calling features include caller ID, call waiting, three way calling and voicemail and the company also sells advanced handsets, including models that have cameras can browse the internet, play music, play streaming audio, display streaming videos and downloaded videos. The company was founded by Roger D. Linquist and Malcolm M. Lorang in 1994 and is headquartered in Richardson, TX.

Envysion, Inc. provides cloud-based video driven business intelligence solutions. It provides Web-based video management solutions to video surveillance markets. The company provides managed video as a service platform, a video management software that is hosted through the Internet. It serves restaurants, retail companies, financial service companies, hospitality, and convenience store operators in North America. Envysion was founded by Dan P. Caruso, Matt Steinfort and Robert Hagens in 2006 and is headquartered Louisville, CO.

Virtustream LLC provides information technology and cloud software services. It is a cloud innovator offering cloud solutions to enterprises, governments and service providers. The firm enables businesses to move complex production applications to the cloud whether private, public or hybrid while delivering the economic and business benefits of the cloud. The company was founded by Kevin Reid and Rodney J. Rogers in 2008 and is headquartered in Bethesda, MD.

Summit Infrastructure Group, Inc. provides custom network and bandwidth infrastructure services. It specializes in delivering dark fiber networks that support and extend data centers connectivity. The company was founded by Bill Cook in 2012 and is headquartered in Dulles, VA.

New Global Telecom, Inc. provides VoIP solutions and outsourced network management services. The company delivers VoIP services to carriers and service providers. The company was founded in 1996 and is headquartered in Lakewood, CO.

mindSHIFT Technologies, Inc. provides information technology outsourcing and cloud services. It offers managed IT Services, cloud, data center and professional services. The firm's clients include small and medium sized businesses, law firms, nonprofit associations, financial services and healthcare companies. The company was founded in by Michael P. Wheeler and Mark A. Moore in 1999 and is headquartered in Sterling, VA.

GTS Poland Sp zoo provides telecommunications services. The company was founded in 1997 and is headquartered in Warsaw, Poland.

Presidio Networked Solutions LLC provides information technology solutions, professional and managed services. The company was founded in 1998 and is headquartered in Reston, VA.

FMR LLC engages in the provision of financial and investment services. It offers financial planning and advice, wealth management, retirement plans, trading and brokerage services, and investment products. The company was founded by Edward C. Johnson II in 1946 and is headquartered in Boston, MA.

MegaPath Cloud Co. LLC provides cloud communications and connectivity services. It offers data, voice, security and hosted information technology services for small, medium, and enterprise businesses as well as wholesale solutions to the carrier and service-provider markets. The company was founded in 1996 and is headquartered in Pleasanton, CA.

Part of Zayo Group Holdings, Inc., Zayo Group LLC is a company that provides tailored connectivity and edge solutions. The company is based in Boulder, CO. Zayo Group was founded in 2007 by John Louis Scarano, Matthew Erickson, Daniel Philip Caruso, and Sandi Mays. The company's future-ready network spans over 17.5 million fiber miles and 142,500 route miles, enabling carriers, cloud providers, data centers, schools, and enterprises to deliver exceptional experiences from core to cloud to edge. Stephen Michael Smith has been the CEO of the company since 2020.

Fidelity Ventures, Inc. invests in growth technology, information technology, communications, systems, software and service companies. The company was founded in 1988 and is headquartered in Salt Lake, UT .

Telarus, Inc. provides software and services to data, voice, and cloud providers. It offers marketing, account management, project management, engineering, sales support, custom commission plans, and audits. The company was founded by Patrick K. Oborn and Adam V. Edwards in 2002 and is headquartered in Sandy, UT.

New Signature US, Inc. provides technology and web solutions. The firm’s services include cloud management for azure, cloud management for office 365, desktop experience, recovery experience, security managed services, system health and technology managed services, advanced analytics, application development, collaboration, identity and access, infrastructure, process and automation, strategy, training and change management, unified communications. The company was founded by Christopher Hertz and David Geevaratne in 2003 and is headquartered in Washington, DC.

Cologix, Inc. provides network neutral interconnection and colocation services. It offers colocation, interconnection, cloud connect, continuity, and support solutions. The company was founded by Grant van Rooyen in December 2010 and is headquartered in Denver, CO.

Contino Holdings, Inc. engages in the provision of technology consulting services. The company was founded by Matthew Farmer and Benjamin Wootton in 2015 and is headquartered in Atlanta, GA.

Landways Management Ltd. leases real estate properties. The firm deliver services and accelerate returns for the owners of properties which are used by organizations such as fixed and wireless telecommunication companies; electricity, gas and other utilities; oil and gas pipelines; alternative energy providers; and the advertising industry for the long-term, supply of critical services. The company was founded by Christopher Smedley and Mike Ainger and is headquartered in London, the United Kingdom.

Lemongrass Holdings, Inc. operates as an investment holding company. The company is headquartered in Alexandria, VA.

euNetworks Group Ltd. provides bandwidth infrastructure services. It delivers scalable, fibre based products and solutions to wholesale, finance, content, media, data centre and enterprise segments. The firm?s solutions include dc connect, euSpectrum, euTrade, wavelength exress, cloud connect, managed optical, and remote peering. The company was founded by Noel Meaney in 2002 and is headquartered in London, the United Kingdom.

Nisos Holdings, Inc. engages in the provision of technology-enabled cyber security solutions. It offers security testing and investigation services. The company was founded in 2015 and is headquartered in Alexandria, VA.

Part of Vivacity Infrastructure Group LLC, eX² Technology LLC is a company based in Omaha, NE. The company provides a single source solution for those seeking to build, scale or upgrade their communications infrastructure. The company specializes in turnkey network design-build-maintain services, network asset commercialization and assisting its customers with unique project financing options. eX² Technology LLC was acquired by Vivacity Infrastructure Group LLC on December 31, 2019.

NearForm Ltd. is an enterprise software development company based in Waterford, Ireland. NearForm specializes in application modernization using leading technologies, development practices, and delivery processes to create future-ready enterprise solutions. The Irish company offers a range of software services including digital product development, DevOps & platform engineering, data engineering & analytics. The company's blog provides insights and perspectives on design, software development, business, and technology. NearForm's client stories and case studies showcase their expertise in digital transformations, capability building, software development, and modernization. The company is known for providing enterprise software development and capability building for top development teams. NearForm creates software solutions that accelerate enterprise success and contribute to the development of their open-source community. The company was founded by Cian Ó Maidín and he has been the CEO since incorporation.

TerraPact, Inc. provides infrastructure acquisitions and asset management services. The private company is based in Brentwood, TN. Benjamin S. Myers has been the CEO of the company since 2019.

Bluewave Technology Group LLC is an advisory and sourcing partner that specializes in modernizing IT and telecom infrastructure. The company is based in Parsippany, NJ and has subsidiaries in Ireland and the United States. The company's team of technology experts and analysts guides businesses of all sizes to make well-informed technology decisions. Bluewave partners with proven cloud, colocation, network, mobility, security, and CX providers to develop the best solution while maximizing technology investments and ensuring long-term success. The company was founded in 1998 by Seth Penland, who has been the CEO since then.

Bandwidth Infrastructure Group CA LLC provides dark fiber network solutions. The company is based in Sunnyvale, CA. The company was founded in 2019 by Jim Nolte. Bruce Garrison has been the CEO of the company since 2022.

Xenith IG is a dark fiber network infrastructure owner and operator that provides reliable, robust, and high-bandwidth connectivity solutions to hyperscalers, data center operators, content providers, carriers, and enterprises in the APAC region. The company is based in Singapore, Singapore, and has subsidiaries in Australia. The Singaporean company's leadership consists of fiber connectivity professionals with proven success building and maintaining large-scale data networks around the world. Xenith IG's networks are 100%% underground, providing reliable connections that can be activated and connected in days. The company strategically places its connections to minimize overlap and builds and operates custom network infrastructure for the most demanding client requirements. Xenith IG enables leading hyperscale companies by providing cost-effective interconnection. The CEO of the company is Clement Goh.

Vivacity Infrastructure Group LLC designs, develops, and deploys fiber optic and wireless network infrastructure. The company is based in Naperville, IL, and has subsidiaries in the United States. The company provides planning, design, construction, maintenance, and commercialization services for fiber optic and wireless infrastructure. The company works through outsourced contracts, public-private partnerships (P3), co-investments, and joint builds. The company's markets include FTTH, transportation, communication, and utilities. The company was founded in 2009, and the CEO is Lynn E. Refer.