Concert Technologies Leadership




setting the tempo for  success

Dennis Mazaris, President & CEO

Dennis Mazaris founded Concert Technologies in 1995 to revolutionize the loose and fragmented model that characterized multi-site, technology rollout services.  Mazaris' development of a comprehensive project and resource management model has enabled Concert Technologies to successfully deploy hundreds of thousands of infrastructure rollouts of voice, data, video and security networks, across diverse global environments.  A serial entrepreneur, prior to Concert Technologies Mazaris owned an Information Technology systems company in the Washington D.C. area, and was selected by SmartCEO magazine for the Smart100 list as one of the top CEOs in the Washington, DC area.

As an acknowledged thought leader within the industry, Mazaris has participated in standards body working and advisory groups, as well as authoring numerous industry technical articles, white papers, videos for publications, and industry training courses. A Registered Communications Distribution Designer (RCDD) and Telecommunications Project Manager (RTPM), Mazaris is also the holder of two US patents, considered a Renaissance Man by Cabling Installation Magazine, and been awarded the prestigious Harry J. Pfister Award for Excellence in the Telecom Industry by BICSI.

A believer in giving back to the industry, Mazaris created the Cabling Icon online competition for low-voltage installers, as well as supporting and promoting the BICSI CARES initiative, which strives to build a strong foundation for children's futures.

Andrew Crone, Vice President of Operations

As the Vice President of Operations and a BICSI-certified Registered Telecommunications Project Manager, Andrew Crone helps federal and commercial customers overcome the challenges they face today in telecommunications, data communications, and technological equipment modernization to better their businesses.  With his global perspective, Crone is a highly accomplished and recognized expert in project and program management related to the industry.

With over 17 years of experience in telecommunications, Crone’s career has focused on project optimization with a highlight on developing and upgrading technology that assists the customer in achieving the end goal.  His hands-on leadership style and managerial approach proves successful in large and ongoing global, multi-site rollouts.  He has managed numerous national rollouts including those for the United States Department of Agriculture, the Social Security Administration, and the United States Postal Service (USPS).  His work was recently recognized by the USPS when Concert Technologies was selected out of 20,000 providers as the recipient of the Supplier Excellence Award.

David Engelman, Operations Manager

David Engelman is an industry veteran who brings over 16 years of experience in Telecom and Structured Cabling to his role at Concert.  After starting in the industry in the Boston area, Engelman moved to DC as a Field Technician, working on high-profile projects at the Pentagon and GSA.  Since initially joining Concert as a Project Facilitator, Engelman has risen through the Concert Operations organization, achieving the Registered Telecommunications Project Manager (RTPM) credential.  He was first promoted to Project Manager with responsibility for thousands of rollouts for Federal Government and Commercial customers, then to Program Manager, overseeing all Project Management functions  at Concert.

Engelman's role at Concert was elevated to Operations Manager, where he leads pre-sales support, the 24/7 Helpdesk - including high-level support escalations, vendor relationships, and employee placement within the Concert Project Management Office (PMO).

Shanna Dick, Director of HR

As Director of Human Resources, Shanna Dick coaches Concert decision makers on employment legal compliance, talent planning and management, and human capital strategy. Prior to Concert, Dick was a Program Manager at the Federal Bureau of Investigation. Since joining Concert as the Trainer for the Registered Telecommunications Project Manager credential, Dick has become a BICSI Certified Trainer, delivering the BICSI Project Management course to students through Concert’s Authorized Design Training Provider.

Dick holds dual bachelor’s degrees from West Virginia University, a master’s degree from Texas A&M University, and a Doctorate in Business Administration – Human Resource Management from Northcentral University. Dick has earned the Society for Human Resource Management-Certified Professional (SHRM-CP), the Human Resources Certification Institute – Professional in Human Resources (PHR), and the Registered Telecommunications Project Manager (RTPM) certification.

Nathaniel Scott, DIRECTOR OF IT

Joining the company in 2000 after graduating from high school, Nathaniel Scott saw Concert Technologies as a land of opportunity. From data entry, to configuring routers and switches in the warehouse, to facilitating projects in a cubicle, the opportunities did not disappoint.

After earning a full scholarship from the University of Phoenix in 2009, Nathaniel earned his bachelor’s degree in Business Organization and Innovation, while working full-time and caring for a growing family. To develop and combine his interests of business, information technology, and processes, he earned the BICSI Registered Telecommunication Project Manager (RTPM) certification, as well as the PMI Project Manager Professional (PMP) certification in 2012.

Today, Nathaniel directs the IT department at Concert, as it continues to evolve the company’s proprietary management software.  He also manages a network spanning three offices, ensuring that Concert employees remain productive, efficient, and effective.  He also serves as the company’s Facility Security Officer, and is the Program Manager for the company’s first GSA prime contract, Connections II.