Fathom 4 has a simple mission: Engineering Freedom - for our country, our clients, and our employees. We delight our DoD clients by providing the best value engineering services. Fathom 4 employees are critical members of the DoD programs we support, by being highly professional, competent, industrious, and ethical. We are a Service Disabled Veteran-owned Small Business (SDVOSB) and an employee-centric company. Fathom 4 was founded on the belief that if we take care of our employees to the best of our ability, then they will do the same for Fathom 4’s clients.
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Fathom 4, LLC Questions
The Fathom 4, LLC annual revenue was $5.4 million in 2026.
Trisha Adam is the Human Resources Director of Fathom 4, LLC.
62 people are employed at Fathom 4, LLC.
Fathom 4, LLC is based in Charleston, South Carolina.
The NAICS codes for Fathom 4, LLC are [5413, 54133, 541, 54].
The SIC codes for Fathom 4, LLC are [871, 87].
Top Fathom 4, LLC Employees
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Andy Frazier
Configuration Management at Fathom 4, LLC
Charleston, SC, US25+ -
Trisha Adam
Human Resources Director at Fathom 4, LLC
South Carolina, United States13 -
Brian Burger
Co-Owner and Chief Engineer at Fathom 4, LLC
Mount Pleasant, SC, US23 -
Brian Baker
Engineer and Scientist 4 (Cyber) at Fathom 4, LLC
Charleston, SC, US11 -
Matthew Lepine
Software Developer at Fathom 4, LLC
Charleston, SC, US11 -
John Tumminelli
Software Developer at Fathom 4, LLC
Charleston, SC, US12 -
Christopher Day
Senior Computer Scientist at Fathom 4, LLC
Mount Pleasant, SC, US25+ -
Dennis Dougherty
Requirements Manager at Fathom 4, LLC
South Carolina, United States41 -
Lisa Perkins
Director of Contracts at Fathom 4, LLC
Charleston, SC, US1 -
John Pesavento
Project Manager at Fathom 4, LLC
Charleston, SC, US22
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