About Us

We are a general contracting company that has the skills you need to provide a turnkey solution for your business.

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For more information please download our Capabilities Statement.



NDT offers both new construction and retrofitting configuration of existing data and VoIP networks, integration of telecommunications systems, and support and provisioning for PBX and LAN/WAN. We also accommodate other technical services including professional IT assessments and auditing services.

Management & Support

We support public and private organizations to operate at maximum performance so you remain competitive. Our goal is simple; share our ideas about technology and assist companies overcoming technical obstacles for business. Ultimately demonstrating how NDT can improve your bottom line longterm.


In the Beginning

As our name implies, network design is our speciality. Since 1997, Network Design Technologies (NDT) has supported and empowered clients in various capacities over the years to help businesses remain Sarbanes-Oxley compliance, reach technology goals and reduce hardware expenses. Joseph Ruffin founder and Chief Executive Officer of NDT started as a one man IT specialist offering desktop support, in home software/computer training, server support and offsite data backup and storage management.

Data Backup and Storage

With the growing demand for business to be HIPAA and Sarbanes-Oxley compliant, backup and storage quickly became a niche for the company. At its peak, NDT provided 3 separate server collocations, with built-in redundancies, to operate small data centers running 24/7. Providing essential services to small law offices and doctor offices well before the widespread acceptance of cloud-based computing and systems management.

The Team

Joseph Ruffin

Founder and Chief Executive Officer

Richard Austin

Chief Financial Officer/Business Manager

Capabilities Statement
ULP 2015 W Young Luncheon

Telecommunications Networking

Evolving with the changes in technology and understanding the local demand for network wiring in the Philadelphia tri-state area, NDT started to gain traction in a completely different IT sector: telecommunications. Shortly thereafter the company would employ several family members and contractors to keep up with pulling network, VoIP and fiber optic wires — all tested and tagged and NDT. The company would ultimately absorb the assets of failing competitors including their field technicians and client base marking the start of another growth transition.

Consulting and Solution Providers

Twenty years later, NDT has gradually expanded to operate a network of consultants and technicians in CT, DE, FL, GA, MD, ME, NC, NJ, NY, PA, SC, TX, VA and Washington, D.C. Our objective is to create a company which everyone is a hands-on contributor that feels comfortable sharing ideas and opinions while delivering state-of-the-art integration of technologies to customers.

NDT has headquarters in Wilmington, DE with satellite offices in Philadelphia, PA and Baltimore, MD.


  •   Corning Product and Installation Certification
  •   Disadvantaged Business Enterprise (DBE)
  •   E-RATE
  •   Fiber Optic Certification
  •   Hubbell Certified Installers
  •   Leviton Certified Installers
  •   Minority Business Enterprise (MBE)
  •   SBA 8A Certified

Our Location

Network Design Technologies
813 Tatnall Street
Wilmington, DE 19801

Phone: 610.991.2929
Fax: 302.654.5729

Work With Us

We are always looking for partners and skilled technicians. If you are interested in joining our team, contact us for more information.


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