
ADDX Corporation
Alexandria, VATenacious by Nature
Service detail: Engineering Readiness and Lifecycle Support
Public engineering firm directory
Search engineering firm profiles built for buyers who need a shortlist, not a sales pitch.
29 results
Showing 1-24 of 29

Tenacious by Nature
Service detail: Engineering Readiness and Lifecycle Support
Leaders by Performance.
Service detail: Engineering and Analysis
ATCSI LLC delivers specialized services and technical solutions in air traffic control systems integration, shipboard systems, manned and unmanned air systems, and air traffic control procedures and policy development. It provides program management, task-based curriculum development, technical training, information analysis, digital data services, systems engineering, and strategic project planning. With a workforce of subject matter experts, the team supports complex aerospace, defense, and maritime programs.
Project: Naval Air Traffic Management Program Support
Built for speed. Engineered to deliver.
Project: Missile Defense Agency SHIELD IDIQ
Total Customer Satisfaction
Project: Mars 2020 Rover Heat Shield Ground Qualification Test
Information Technology Consulting
Service detail: Systems and Software Engineering

Tailored Solutions for Government and Industry Excellence
Project: OASIS+ Contract Bid Support

A Data Driven Company
Project: NOAA Radar Operations Center Mission Support Services

Engineering, programmatic, and technical support services for national security missions.
Project: Air Force Life Cycle Management Center Support

Training is not practice. It is perfection.
Project: JTAGSS Program
Epsilon Systems Solutions, Inc. is a defense engineering and technical services provider headquartered in San Diego, California, with facilities in Portsmouth, Virginia, Mayport, Florida, and Pearl Harbor, Hawaii. Epsilon Systems provides marine engineering and ship repair for all classes of U.S. Navy vessels, C5ISR systems engineering and intelligence support, manufacturing of advanced military and commercial products, and technical services including geospatial analysis, environmental compliance, and simulation training. Operating over 125,000 square feet of repair, modernization, and manufacturing facilities near major U.S. Navy homeports, Epsilon Systems holds SUBSAFE certification on all classes of submarines and serves the U.S. Navy, NAVAIR, NAVSEA, and the broader national security community.
Service detail: Navy Ship Repair and Modernization

Innovative engineering solutions in RF and optical communications, optical sensing, and digital processing
Service detail: Optical Engineering

Innovative Engineering and IT Solutions for National Security
Project: Professional Engineering and Logistics Support Services (PELSS-3)

Modeling, simulation, information technology, and audio-visual systems integration.
Project: NIFC Remote Automatic Weather Station Engineering Support

Actionable Data Science & Analytics
Service detail: Technical Services

The Global Leader In Air Traffic Flow Management
Project: ATFM Solution for 17 African Countries (ASECNA)

Innovative and Technology for Tomorrow's World
Project: NSWCPD Test Site Design and Engineering Support
For the Best of Reasons
Project: U.S. Navy Warship Modernization Engineering
Digital transformation, cybersecurity, and smart city solutions for government and commercial clients worldwide.
Project: Virginia Smart Community Testbed
Your Success | Our Mission
Project: F-35 Readiness Directorate Support
Software and Electronics Engineering
Service detail: FPGA Integration and Development

Your Success Is Our Honor
Service detail: Systems Engineering

Deliver Solutions for Complex Programs On Time and Within Budget
Service detail: Systems Engineering

Experts at Getting Things Done (Better)
Project: Joint All Domain Command and Control (JADC2) Capability Proliferation