VP, Armaments and Combat Division Previous Next DANIEL CHAUSSE VP, Armaments and Combat Division Daniel Chausse serves as the vice president of STC’s armaments and combat division. In this role, Daniel has been an advocate for the standardization and adoption of MBSE best practices in the acquisition processes for the Air and Space Forces, the Army, and the Navy to reduce ambiguity, improve timelines, enhance technical capabilities, minimize risk, and reduce costs across the Department of Defense. Before joining STC, Daniel worked as an MBSE team lead for Lockheed Martin on large acquisition programs. Prior to that, Daniel worked for the Engineer Research and Development Center in the U.S. Army Corps of Engineers as a member of the Institute of Systems Engineering Research. Daniel’s academic background includes a bachelor’s degree in mathematics from the University of Mississippi, and a master’s degrees in applied mathematics from the University of Mississippi.

Combination with Arcfield creates a leader in model-based systems engineering Previous Combination with Arcfield creates a leader in model-based systems engineering CHANTILLY, Va., Aug. 8, 2023 — Arcfield, a leading government services and mission support provider, today announced that it has completed its acquisition of Strategic Technology Consulting, LLC (STC), a highly differentiated provider of full-spectrum model-based systems engineering (MBSE) and digital engineering services and solutions. Post closing, STC continues to serve its breadth of commercial and government customers as a subsidiary of Arcfield. STC’s comprehensive suite of offerings includes highly complex modeling methodologies, digital twins and software tools that enable next-generation technology development. STC’s expert team of consultants delivers products and services that rapidly accelerate MBSE adoption throughout the lifecycle of a development platform, from conceptual design to operations and maintenance support. “As a decades-long leader in MBSE and digital twins, Arcfield has invested heavily in the development, refinement and advancement of our digital engineering and MBSE capabilities to support our customers in their shift from traditional SE&I to an all-digital model,” said Kevin Kelly, chairman and chief executive officer of Arcfield. “The acquisition of STC strengthens the capabilities and resources we deliver to our customers. We look forward to welcoming the STC team to the Arcfield family.” “Throughout our history, we have been delivering differentiated digital engineering solutions to our customers, enabling reduced cost and improved quality of next-generation technology systems,” said Daniel Reineke, president of STC. “Arcfield’s position as a prime contractor, reputation as a trusted government partner, and mission-first culture make it the ideal home for our people, products and portfolio of services and will enable us to expand our reach into new customers, capabilities and markets.” Latham & Watkins LLP and Covington & Burling LLP served as counsel to Arcfield. STC was advised by Raymond James and represented by law firm Miles & Stockbridge P.C. About Arcfield Arcfield was purpose-built to protect the nation and its allies through innovations in systems engineering and integration, space and mission launch assurance, cybersecurity, and conventional and hypersonic missile support. Headquartered in Chantilly, VA with 16 global offices, Arcfield employs more than 1,300 engineers, analysts, IT specialists, and other professionals with more than 60 years of collective proven experience supporting missions in cyber and space defense, hypersonic and nuclear deterrence, and warfighter readiness. Visit arcfield.com for more details. About STC STC is an industry leading solutions provider in digital engineering and model-based systems engineering. The company’s offerings include MBSE-as-a-Service, integrated digital engineering environment (IDEE) deployments, training, and software. STC’s customer base includes an array of commercial industry customers, U.S. defense agencies and defense prime contractors. STC has more than 110 employees and is headquartered in Toms River, NJ. Visit stechnologyconsulting.com for more details. Press Contact: Katerina Figurski Senior Director, Marketing Communications 571.401.2155 katerina.figurski@arcfield.com Next Aug 8, 2023 Arcfield Acquires Strategic Technology Consulting

President and GM, Strategic Technology Consulting Previous Next DANIEL REINEKE President and GM, Strategic Technology Consulting As general manager of the Strategic Technology Consulting (STC) sector, Dan Reineke leads a highly skilled team of model-based systems engineering (MBSE) and digital engineering (DE) experts that deliver a comprehensive suite of services and solutions, including highly complex modeling methodologies which provide fully integrated systems architecture models to enable next-generation technology development, as well as MBSE-as-a-service. Dan joins Arcfield following the company’s acquisition of STC in 2023, a company he founded in 2018. As founder and chief executive officer of STC Dan worked closely with customers to demonstrate the value of DE, while pushing the boundaries of next-generation systems engineering. With his deep expertise in MBSE and passion for DE, Dan is dedicated to helping organizations streamline their engineering processes and achieve success in their most complex projects. Prior to the launch of STC, Dan supported multiple defense industry startups and worked with commercial industry customers to automate manual business processes through the adoption of new technologies.

EVP of MBSE Services Previous Next DAVID MARTIN EVP of MBSE Services As executive vice president of MBSE services, David Martin leads a diverse set of engineering teams that contribute technically within the organization, working closely with clients to help them transition to innovative, digital engineering solutions. David joined STC in 2020 from G2 Ops where he served in a variety of systems engineering focused roles of increasing responsibility. Earlier in his career, David held engineering roles at both Northrup Grumman and Accenture. David earned his Master of Applied Studies in architecture-based enterprise systems engineering from the University of California, San Diego, and his Bachelor of Science in electrical engineering from San Diego State Univrsity. Outside of work, David enjoys playing basketball, hiking and spending quality time with his family.

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At STC our team of engineers and specialists are united in putting our customers’ needs first. STC is the type of workplace where you feel good about the work you’re doing. We provide advanced solutions in digital engineering and model-based systems engineering and integration in support of our customers’ most sophisticated technical challenges. At STC, you’re not just an engineer, you’re a solution provider, navigating technical complexity and delivering results WORKING AT STC At STC our team of engineers and specialists are united in putting our customers’ needs first. STC is the type of workplace where you feel good about the work you’re doing. We provide advanced solutions in digital engineering and model-based systems engineering and integration in support of our customers’ most sophisticated technical challenges. At STC, you’re not just an engineer, you’re a solution provider, navigating technical complexity and delivering results. A team of top talent From your first day on the job, you’ll find a team you are proud to stand shoulder to shoulder with. We are innovative thinkers that challenge the status quo. Our people are hard at work engineering original, rapidly deployable solutions in advanced analytics, cybersecurity and systems integration that increase the speed of technology to mission. And we make sure that our people have the best tools available to do so. LEARN MORE Enjoy a full range of benefits Through our parent company, Arcfield, STC offers a full suite of health care and total rewards options to fit every lifestyle and encourages all employees to maintain a healthy work-life balance. We also provide professional learning tools and resources—from career paths and individual development plans to online, in-classroom and certification training programs—to propel your career. LEARN MORE Discover your new career Our people make the difference, which is why we foster an environment where you can do your best work while helping our customers achieve program success. If you have a passion for technology and are driven by innovation and creativity, don’t wait—apply today! EXPLORE JOBS

The intelligent model-based systems engineering (MBSE) tool harnesses the power of artificial intelligence (AI) to amplify the benefits of MBSE by securely adding speed, accuracy and automation to every process. Previous The intelligent model-based systems engineering (MBSE) tool harnesses the power of artificial intelligence (AI) to amplify the benefits of MBSE by securely adding speed, accuracy and automation to every process. CHANTILLY, Va., April 9, 2025 – Today, Strategic Technology Consulting (STC), a wholly owned subsidiary of Arcfield, announced an AI-enabled MBSE tool designed to transform the systems engineering process through the use of automation, large language models (LLM) and machine learning (ML). Intelligent MBSE™ is a cloud-agnostic tool that can be deployed online or on-premises, in both classified and unclassified environments, to securely deliver AI-built MBSE models and automated analysis of system designs. “STC was created out of a vision to optimize the systems engineering process for strategic defense programs,” said Dan Reineke, president and general manager, STC. “By infusing AI and automation into our proven MBSE approach, we are creating better requirements, removing redundancy and time-consuming tasks, and accelerating the systems engineering process for our mission partners like never before.” Currently built on a proven AI platform, Intelligent MBSE has the flexibility to be configured for any platform. The MBSE assistant automates digital thread analysis, generates engineering artifacts, and integrates seamlessly with all SysML versions, MBSE tools and digital engineering environments. Additionally, Intelligent MBSE features a modular and dynamic architecture that is fully customizable and scalable to accommodate future AI and ML techniques and LLMs. “As leaders in MBSE, we have delivered improved decision-making, long-term cost savings and accelerated mission success for our partners as they make the shift to digital engineering,” said Kevin Kelly, chairman and chief executive officer, Arcfield. “In keeping true to our promise to always deliver a technological advantage to our customers, with Intelligent MBSE we can amplify those benefits and uncover even greater efficiencies.” For more information about Intelligent MBSE , please visit intelligent-mbse.com . About STC, an Arcfield Company STC, a wholly owned subsidiary of Arcfield, was founded to do systems engineering differently. As an industry-leading solutions provider in digital engineering and model-based systems engineering (MBSE), the company delivers MBSE-as-a-Service, integrated digital engineering environment deployments, training and consulting to both commercial and public sector customers. Every day, STC’s team of expert engineers are unleashing the power of digital engineering to navigate complexity, increase understanding and inform decision-making. Learn more at stc.arcfield.com . Press Contact: Katerina Figurski Vice President, Chief Marketing Officer 571.401.2155 katerina.figurski@arcfield.com Next Apr 9, 2025 STC unveils Intelligent MBSE™: System-focused AI for digital engineering

Navigate complexity, enhance decision-making, and advance innovation through STC's digital engineering and MBSE expertise. UNLEASH THE POWER OF MODEL-BASED SYSTEMS ENGINEERING Navigate complexity, enhance decision-making and advance innovation through STC's digital engineering and MBSE expertise. Contact Us Submit the form below and a member of our team will be in touch! First name* Last name* Email* Phone Company Name Area of Inquiry* Message* SUBMIT About STC STC was founded to revolutionize systems engineering by harnessing the power of digital modeling to simplify complexity, improve understanding and support decision-making. Our team of expert MBSE and digital engineering professionals is committed to advancing innovation and ensuring mission success for both government and commercial clients. Through cutting-edge tools, services and training, we help organizations navigate today's multifaceted challenges while driving growth and empowering innovation. MBSE-AS-A-SERVICE STC’s industry-leading MBSE experts work as an extension of your team to provide proven knowledge throughout the systems development process. DIGITAL ENGINEERING ECOSYSTEM DE leverages digital, data-based tools, technologies and processes to design and analyze existing and future engineering systems. STC specializes in the design and implementation of full-scale DE ecosystems, leveraging a wide range of disciplines. MBSE FOR SPECIALTY ENGINEERING STC can extend your MBSE practices to include specialty engineering disciplines. Incorporating this information into the core of the system design to support critical decision-making and analyses. CUSTOM MBSE TOOLING STC can enhance your organization’s native digital engineering capabilities and boost efficiency by installing reusable custom automation tools. CONSULTING The transition to digital engineering or MBSE can be daunting. STC’s team of consultants has the experience and expertise to understand the benefits of the digital approach, how to implement it, and how to navigate the potential issues that you might face along the way. TRAINING At STC, we believe that the best way to learn is by doing. Our courses are designed to facilitate learning through hands-on practice to ultimately employ and enable participants to become MBSE practitioners. Our Services Proven Expertise STC’s MBSE and digital engineering specialists ensure mission success with tailored solutions. Custom Tooling Enhance your processes with reusable, custom-developed MBSE automation tools. Full Ecosystem Support STC designs and implements comprehensive digital engineering ecosystems. Specialty Services STC integrates critical disciplines like cybersecurity and reliability engineering into your systems. Why Partner with STC? STC News Model-based systems engineering (MBSE) enhances digital design of military communications and weapons The challenges facing the nation’s defense and intelligence agencies are daunting, but according to Dan Reineke, STC president and GM and MBSE expert, the advantages of MBSE can ensure the time, funding, and staff available operate as efficiently as possible to get cutting-edge systems into the hands of American warfighters as quickly as possible. MORE NEWS Driving digital innovation for U.S. Army’s next-gen programs STC plays a crucial role in advancing digital engineering on the U.S. Army's Titan program, using model-based systems engineering to streamline battlefield communications and operational capabilities. This collaboration highlights STC’s technical leadership and ongoing contributions to defense modernization efforts. MORE PRESS RELEASES Check out our latest playbook: A Roadmap to Exponentially Scale Engineering through AI DOWNLOAD THE PLAYBOOK CONTACT US

Selecting the right tools and plugins for your organization’s MBSE programs isn’t always clear. Let us help you navigate the Dassault Systemes portfolio offerings and make the right selections for your needs. DASSAULT SYSTEMES RESELLER Since early 2022, STC has partnered with Dassault Systemes to provide customers the highest level of customer service and responsiveness when seeking Dassault Systemes software. We are committed to providing the most competitive pricing, quick turnaround times, and top-tier support for all Dassault Systemes products we represent—across all industries. STC provides critical, real-time support to our software customers, reducing program downtime due to software licensing and availability issues. Additionally, with expertise in Dassault Systemes programs, our agile team of subject matter experts can respond quickly to full-scale digital ecosystem infrastructure installs and liaise with Dassault Systemes on your behalf, providing the highest level of fidelity and accuracy in establishing digital linkages between digital engineering tools. In recognition of best-in-class performance in the 3DS ecosystem and for being highly aligned with 3DS business strategy, STC has been awarded Platinum Partner status by Dassault Systemes. DASSAULT SYSTEMES PRODUCTS MagicDraw Design complex object- oriented information systems Cameo Systems Modeler Define systems behavior, structure, and requirements Cameo Enterprise Architect Define operational missions of large-scale distributed systems PLUGINS Cameo Simulation Toolkit Execute and animate models of a system in a realistic context Cameo Data Hub Plugin Enables import/export and data synchronization with other tools and repositories Cameo Requirements Modeler Plugin Import and manage requirements within the model COLLABORATION Teamwork Cloud Central repository for storing models, allowing users to work collaboratively and concurrently Cameo Collaborator Web based access to present model data in a simplified form for stakeholders and reviewers CATIA No Magic Portfolio is for existing Dassault Systemes Customers and Department of Defense. For customers in other industries, please contact us for the CATIA Magic Portfolio Contact Us Submit the form below and a member of our team will be in touch! First name* Last name* Email* Phone Company Name Area of Inquiry* Message* SUBMIT MODELING

Quick and easy access to the Arcway for STC Arcfield Employees EMPLOYEE PORTAL The Arcway All enterprise applications are accessible via the Apps dropdown on The Arcway. Please note that Microsoft authentication will be required with your Arcfield credentials. ACCESS THE ARCWAY

Discover STC’s MBSE as a Service—scalable, cloud-based Model-Based Systems Engineering solutions designed for efficiency, collaboration, and digital transformation. MBSE-AS-A-SERVICE We work as an extension of your team to provide expert knowledge throughout the systems development process. Our STC subject matter experts build descriptive digital models to facilitate and communicate the specification and design of a system. MBSE-as-a-Service Fundamentals Model Development Create and maintain detailed models of your system, including functional, logical and physical models Analysis and Simulation Leverage advanced simulation tools to analyze and test system performance under varying conditions Model Integration Perform digital model integration, including requirements models, CAD, physics-based engineering models and more to create the full digital thread Model Verification Develop verification artifacts based on modeled test cases and establish end-to-end traceability Industry leading MBSE experts STC’s MBSE-as-a-Service offering drastically reduces costs, improves quality and boosts efficiency over legacy document-based systems engineering practices. Our services identify and resolve problems at the speed of relevance and offer repeatable processes that enable rapid scaling and new program transferability. CONTACT US Benefits of MBSE-as-a-Service IMPROVED COMMUNICATION MBSE provides a clear and concise way to communicate. It avoids misinterpretation and misunderstandings stemming from different terminologies and lexicons. ENHANCED COLLABORATION MBSE provides a collaborative environment where teams can work interactively on a single model. This leads to integrated and consistent engineering artifacts and a better overall understanding of the system. BETTER VISUALIZATION MBSE aids in the creation of visual representations of the system that can be easily understood and interpreted by stakeholders. Visualization supports a stakeholder’s ability to understand the system’s behavior and structure. EARLY ISSUE DETECTION MBSE increases the fidelity of the system design early in the development process, identifying potential issues earlier than traditional systems engineering. Resolution of errors is most cost effective early in the design process. IMRPOVED QUALITY MBSE provides a systematic and repeatable approach to system development, which improves the quality of the system. It reduces the risk of errors and omissions and ensures the system meets the desired specifications. TIME AND COST SAVINGS MBSE reduces the development time and cost by improving communication, collaboration and early detection of issues. MBSE reduces rework, reduces errors, and optimizes the system design process. Contact Us Submit the form below and a member of our team will be in touch! First name* Last name* Email* Phone Company Name Area of Inquiry* Message* SUBMIT

Learn about STC, an Arcfield company dedicated to transforming systems engineering through innovative digital and model-based solutions for complex challenges. ABOUT STC STC was founded to do systems engineering differently. Every day, we realize the power of formalized modeling to comprehend complexity, increase understanding and inform decision-making. Our expert team of model-based systems engineering and digital engineering practitioners are working tirelessly to ensure the success of advanced government and commercial systems through a premier set of services and solutions. Navigate Complexity Our mission is to make the complex understandable and to empower innovation that solves the multifaceted challenges of tomorrow. ADVANCE THE MISSION EMPOWER OUR PEOPLE GROW OUR BUSINESS MISSION | PEOPLE | BUSINESS This is our credo. We are unified in putting the mission first because the security of our nation is what’s at stake. But we know that we can’t do it without the diverse experience and unmatched skill set of our people. We believe by fostering an environment that is driven by innovation and empowers its people that we can accelerate mission success for our partners and ensure our longevity as a company. When Arcfield was established, we envisioned a company unlike any other. Our credo and values are unique to the people we hire and the work that we do and define who we are. Our code of conduct is an extension of our values and reflects our continued commitment to ethical business practices and regulatory compliance. YEARS OF INNOVATION 7 EXPERT MBSE ENGINEERS 200+ SECURITY-CLEARED WORKFORCE 100% REMOTE LOCATIONS 75+ NEXT-GEN PLATFORMS SUPPORTED 35+ ORGANIZATIONS SUPPORTED 100+ Our history About Arcfield Arcfield was purpose-built to protect the nation and its allies through innovations in systems engineering and integration, space and mission launch assurance, cybersecurity, and conventional and hypersonic missile support. Headquartered in Chantilly, VA with 17 global offices, Arcfield employs more than 1,500 engineers, analysts, IT specialists, and other professionals with more than 60 years of collective proven experience supporting missions in cyber and space defense, hypersonic and nuclear deterrence, and warfighter readiness. LEARN MORE AEROSPACE AND DEFENSE CONSUMER AND RETAIL HEALTHCARE PUBLIC SECTOR AUTOMOTIVE INFORMATION TECHNOLOGY MANUFACTURING Industries we serve From complex defense systems to household appliances, and from hypersonic missiles to electric vehicles, we have experience doing it all.