PEMDAS Technologies & Innovations

PEMDAS’ experts have spent decades leading the way in analysis, research and development of complex systems.

The PEMDAS Story

In 2008, Mary Lockhart, President and CEO of PEMDAS Technologies & Innovations, first identified the need for the Department of Defense, the Intelligence Community, civilian emergency response authorities and the private sector to integrate Environmental Intelligence (EI) into their most critical activities. She gathered a team of dedicated Subject Matter Experts to ensure PEMDAS client needs were met. Since then, PEMDAS has delivered on that vision, providing clients with unique services and insights to help them succeed.

Our Expertise

PEMDAS’ team of nationally recognized experts and highly skilled engineers – all of whom have a proven record of exceeding objectives – bring expertise to solve complex problems for our clients by using innovative approaches, strategic planning, the application of proven systems engineering methodologies and effective communication.

PEMDAS management includes senior leaders from the military, atmospheric science, systems engineering, risk assessment, lifecycle product development and high-end engineering services.

Our expertise crosses disciplines and application systems:

  • High spatial and temporal resolution rapid updating weather forecasting
  • Long range seasonal weather prediction
  • Real-time environmental alerts and warnings
  • Assimilation of disparate data sources into numerical weather predictions
  • Tailored applications for unique missions utilizing weather data
  • Business logic decision based weather products in five dimensions
  • OGC compliant web-service delivered data
  • “Big Data” analytics

Our Team

Combat, Test & Space Flight Hours
Years of Military Experience

Veterans Employed >


Advanced Degrees >


Past Performance >


The PEMDAS “Order of Operations”

  • P: Professional Engineering & Project Management
  • E: Environmental Situational Awareness Tools
  • M: Modeling and Simulation
  • D: Data Fusion Engineering
  • A: Atmospheric Sciences & Scientific Analysis
  • S: Systems Engineering, Sensor Technology, and Strategic Planning

Answer This Problem If You’re A Mathaholic

4 x 4 + 4 x 4 + 4 – 4 x 4 = ?

Hint: Remember, P.E.M.D.A.S.
(73% of people fail to answer this correctly)

Want the answer?

Click Here

(4 X 4) + (4 X 4) + 4 – (4 X 4)
(16 + 16 + 4) – 16
36 – 16


Client Experience

Department of Defense

PEMDAS is under contract with the United States Army, Air Force and Navy to analyze and develop solutions for improved Environmental Intelligence (EI) for Intelligence, Surveillance and Reconnaissance (ISR) operations, especially for unmanned platforms.

PEMDAS solutions close the environmental gaps with real-time sensing technologies and data fusion techniques to enable better decision making. PEMDAS’ environmental intelligence tools have been proven effective from the Arctic to the Tropics.


PEMDAS, as a member of the Unmanned Aircraft System Traffic Management (UTM) team, is helping NASA develop the concepts and regulations for the safe and efficient operation of unmanned platforms within America’s national airspace structure.


Through innovative research, PEMDAS is using atmospheric modernization research to improve operations and reduce costs for NOAA.

The UK Met Office

PEMDAS has a collaborative relationship and agreement with the United Kingdom Meteorological Office (Met Office), providing a forum for joint concept development for Open Geospatial Standards.

Executive Leadership Team


Mary Lockhart

President & Chief Executive Officer

Mary is the founder of PEMDAS Technologies & Innovations, a woman-owned, service-disabled veteran-owned small business focused on the integration of weather intelligence into C4I systems, sensor technology and engineering for the Department of Defense.  Mary is a nationally recognized and established leader in both aerospace and atmospheric science communities.  Her past leadership roles include serving as a Senior Aerospace Meteorologist at NASA and as the Acting Director of Air Force Weather, Headquarters, U.S. Air Force, Washington D.C.

Read More

Paul Lockhart

Director of Engineering

Paul Lockhart is Director of Engineering for PEMDAS Technologies. Previously, Paul was Senior Vice President for Space Systems and Services, Vencore. Paul came to Vencore in October 2008 from the Federal Government where his last position was as an Astronaut and Special Assistant for Program Management at Headquarters for the National Aeronautics and Space Administration (NASA). As the SVP at Vencore, he oversaw Vencore’s extensive range of operations supporting NASA and other agencies including the Department of Defense.

Read More

Partners & Affiliations

Science & Engineering Team

Connect With Us

Interested in our services or want more information about PEMDAS? Send a note to our Engineering Team and we will respond to your request.

Client Testimonials