We support public and private organizations

Our goal is straightforward – Share our ideas about general contracting and assist public and private companies in overcoming implementation obstacles, ultimately demonstrating how NDT can improve your bottom-line long-term..


Network Design Technologies, Inc is a certified 8a company

In the Beginning

As the name NDT implies, network design is our specialty. Founded as a sole proprietor in 1997, Network Design Technologies (NDT) has supported and empowered clients in various capacities over the years to help businesses reach technological goals and reduce hardware expenses. Joseph Ruffin is the founder and Chief Executive Officer of NDT. He started as a one-man IT specialist offering desktop support to primarily churches and local community action groups, also software/computer training, desktop and server support, and offsite data backup and storage management.

Data Backup and Storage

With the growing demand for businesses 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. Our team provided 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

Brezelle Bey

Sales Manager

Capabilities Statement

NDT is a full-service construction firm. We specialize in general contracting, specializing in electrical, Tele-Comm, and related intelligent systems and specialized material supply.

General Contracting

NDT offers full general contracting services. These include planning throughout project completion and closeout, and also using industry-standard project management systems. Our team works with each client to guarantee a unique customer experience. We maintain a positive working relationship with our subcontractor by sharing all information and responsibility for the overall success with each team member. NDT’s goal is to provide the best-in-class service teamwork for our client’s, design firm, subcontractors, and any other specialty trades to ensure that the project is delivered on time and on budget.

  • Cost Monitoring and Control
  • Schedule Development and Management
  • Subcontractor Management
  • Field Engineering and Design
  • Health And Safety Planning for the construction environment
  • Project Accounting
  • Change Management
  • Submittal Review
  • AHA and Planning
  • Quality Control Analysis
Joesph Ruffin at his home office in Nicetown. Photo Credit: Kimberly Paynter - WHYY

Joesph Ruffin at his home office in Philadelphia. Photo Credit: Kimberly Paynter – WHYY


Technical Consulting and Solution Providers

  • Design-Build
  • Preconstruction Services
  • General Construction
  • Interior and Exterior Power Distribution
  • Low Voltage Structured Cabling
  • Data Centers – Telecommunication Rooms

NDT is an 8A certified company headquarters in Wilmington, DE with satellite offices in Philadelphia, PA, and Baltimore, MD



  • CommScope Certified Installers
  • Belden Certified Installers
  • Authorized Seller for AccuTech from its GSA Contract 
  • Corning Product and Installation Certification
  • E-RATE
  • Fiber Optic Certification
  • Hubbell Certified Installers
  • Leviton Certified Installers

Socioeconomic Status

  • SBA 8A Certified
  • Minority Business Enterprise (MBE)
  • Disadvantaged Business Enterprise (DBE)

Our Location

Network Design Technologies
Wilmington, Delaware

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.


Connect With Us

Connect With Us