We are a certified small business
investing in growth

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and the NAICS codes we serve.

Company Overview

Strategic Technical Services, LLC, dba Strategic Tech Solutions (STS) is a small business specializing in Digital PLM Solutions, Model Based Systems Engineering, Custom Software Development expertise, Cloud Services, Data Engineering and Cybersecurity advisory services for a variety of federal and commercial customers. As our customer base evolved over the past decade, our support has become increasingly solutions-oriented, as opposed to isolated services. We are experts in PTC Windchill (WC) implementation and support, including Windchill Quality Solutions (WQS) to support Product Lifecycle Management solutions.

From our offices in Carmel, Indiana and Maryland, we manage a network of team members throughout the US that are positioned to provide either on-site or remote support. Our current customers extend from the Washington DC area to a selection of international customers and include some of the nation’s leading Aerospace and Defense entities.


Trusted partner to the clients of any size & any category and trusted workplace that brings the best out of the associates


• To become one of the leading digital transformation solutions providers.
• Be the first choice for offering world class solutions.
• Be the first choice to work with to reach career goals.

Core Values

• Client value creation
• Best people, technology, and practices
• Integrity
• Operational excellence

Engagement Methodology


Our Team

Swamy Senthil


Ph.D. in Applied Mechanics

24+ Years in Enterprise Applications Design, Build, Delivery & Customer Management

Rich Castellano


MBA International Business

30+ years with Lockheed

Jessica Eastman


10+ years in Financials & Accounting



STS is a strong believer that AFTER-SALES Service talks louder than PRE-SALES campaign. Following is a list of select number of our customers.

How can we help you?

Contact us for Digital Transformation of your manufacturing focused businesses. We specialize in US Government and Commercial projects.