High-tech Telecom, Wireless, IT, Cloud, Intellectual Property Consultancy in the heart of Wall Street

Leadership and Key Staff

Our people are the key to our and your success.

Our people are the key to our and your success. Together these Senior Professionals with our Project Managers, Subject Matter Experts, design specialists and support personnel bring the necessary skill and experience to solve our clients’ challenges and deliver projects on–time and within budget.




Benedict Occhiogrosso


Mr. Occhiogrosso is a Co-Founder of DVI Communications.  He is a graduate of New York University Polytechnic School of Engineering.  Mr. Occhiogrosso’s experience encompasses a diverse suite of technical and managerial disciplines including sales, marketing, business development, team formation, systems development, program management, procurement and contract administration budgeting, scheduling, QA, technology operational and strategic planning. Read more

    Daniel Minoli

    Principal Consultant

    Mr. Minoli is a world-renowned researcher who has published 60 technical books, 300 papers, and made 85 conference presentations. He has many years of technical-hands-on and managerial experience in planning, designing, deploying, and operating secure IP/IPv6-, VoIP, telecom-, wireless-, satellite- and video networks for global Best-In-Class carriers and financial companies.  Previous roles in the past two decades have included Chief Technology Officer at Secure Enterprise Read more

      Andrzej Koltun

      Director Network Architecture and Senior Program Manager

      As DVI’s Director of Network & Systems Architecture, Mr. Koltun has technical responsibility for many of DVI’s projects, including aspects of: strategic planning, network and system design, and network implementation management.  Mr. Koltun is a Senior level network architect and experienced technical project manager.  He has designed and deployed large-scale Networks for over thirty –five (35) years supporting multiple missions –critical applications including Financial services, security and telemetry.  Read more


      Luis Bieyro

      Senior Project Manager & Relocation Practice

      Mr. Bieyro a Technology Infrastructure and Physical Security Specialist and has also served as a Project Manager, Telecommunications, Security and AV Design Consultant, Design Analyst and Estimator over the course of his 30+ year career.  Mr. Bieyro is experienced in the design, engineering and implementation management of Technology infrastructure including distribution cabling (inside and outside plant), design of data centers, IDF, and MDF rooms as well as digital video surveillance, access control systems and various AV systems for corporateRead more


      Wen Ning Hsieh, PhD

      Executive Vice-President

      Dr. Hsieh is a Co-founder and EVP of DVI Communications. He holds a PHD in mathematics from MIT.  Dr. Hsieh is responsible for Corporate Finance and Administration as part of day–to–day executive responsibilities.  Dr. Hsieh also exercises a Quality assurance over ongoing DVI projects from budget and schedule perspective to satisfy client objectives. Read more

        Eric Berry

        Director, Sales and Marketing

        Eric has over 15 years strategic sales and marketing experience with Telecommunications, Data Centers and Internet technology companies including Equinix, Abovenet and Zayo. He is thoroughly conversant with the gamut of telecom carrier services, co-location, outsourced IT and smart building technologies having provided innovative and scalable solutions to both domestic and global Fortune 100 clients.Read more

          Jim Gleason

          Director Business Development

          Jim Gleason is a seasoned professional with a rich background in sales, marketing and business development.  Jim is responsible for new business and market developmentJim enjoys a successful and proven track record of providing innovative technology solutions to customers across multiple mission critical industries such as Global Financial Services, Public Sector (including; State and Local Government, Federal, Health Care and Higher Ed) as well as major publishing industries.  Jim has over 20+ years of experience providing business and management consulting services encompassing leading edge technological innovation.



            Senior Project Managers and Practice-Heads


            Ms. Raisa Tubman

            Senior Project Manager

            Ms. Tubman is an expert in technology infrastructure and telecommunications distribution systems with over 25 years of industry experience. She specializes in the design, procurement and implementation of complex network infrastructure. Ms. Tubman has hands-on experience with infrastructure and cabling systems for Data Centers and Command Centers and Communication Rooms including cable tray, power, cooling, room layouts, access flooring, lighting and furnishings; Backbone Cabling SystemsRead more

              Anthony G. Trapini

              Senior Project Manager

              Anthony Trapini is a senior level, multi-disciplined, telecommunications design engineer and experienced technology project manager. He has functioned as a core-team design engineer and construction project manager for several large, technically challenging projects throughout the NYC tri-state area. Mr. Trapini has participated as a core team member in the planning, design, MEP coordination and construction project management for over 1,000,000 sq. ft. of data center and/or technology space. Read more

                Jeff Chang

                IT Systems Practice Head

                Jeff Chang is an IT Systems expert with extensive, in-depth knowledge of servers, LAN/WAN networking, VoIP, IP Video Surveillance, and IT security. He has planned, supported and managed major network/server/system rollouts, upgrades and provides on-going support for a number of DVI clients. Mr. Chang has also deployed, managed, operated and maintained complete IT infrastructure for small and medium DVI clients. He also performed applications software development and telecommunications systems analysis. Read more

                  Gregg Gerdau

                  Director, Strategic Innovation

                  Gregg is a seasoned entrepreneur, high technology executive and management advisor with significant experience in leadership, financial management and innovation development. He has been a member of C-level executive teams responsible for Organizational Development in technology driven companies worldwide. Gregg also founded Matador Advisors, was co-Founder and CEO of MotiveLogic, CIO for Assurz, Founder and CEO of Intelor, Chief Information Officer for Angara, SVP & CIO for Nvest Companies L.P. Read more

                    John G. Puma

                    Senior Project Manager and Energy Practice Consultant

                    Mr. Puma has supported Management Consulting and New Business Development by incubating, building and funding Start-up Companies in various industries including but not limited to Renewable Energy, Energy Efficiency and Conservation, Emerging Technologies, Real Estate. He is conversant in strategic planning, business and product development, start-up operations, marketing and national roll-out of new products, systems and services. Read more




                    Other Staff

                    DVI employs extensive technology- and industry-specific resources to support our broad range of technical initiatives.


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