IT Solutions

Our solution experts are among the
best in the industry, specializing in cutting-edge technology.


Delivering information technology,
training, strategy, operations,
and transformation


Delivering the right staffing
resources when, where, and how
you need them

Marathon TS Continues Its Commitment to Quality Service

Marathon TS was appraised at Level 3 of the CMMI Institute’s Capability Maturity Model Integration. This is “proof of our commitment to providing superior service to our clients!” according to President Mark Krial. “We are extremely proud of achieving CMMI Level 3.”

Mark attributes the appraisal and, in fact, Marathon’s overall success to the company’s employees. “None of it would have been possible,” he says, “without our amazing team who have truly internalized the processes necessary to facilitate our continuing success.”

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Women Owned

Why Marathon TS

Marathon TS is a relationship-driven IT professional services firm identifying winning IT solutions for government, government contracting, and commercial clients by leveraging the power of people and technology.


Marathon TS understands that obtaining a challenging position with excellent pay and benefits is paramount. Also important is an enjoyable and fulfilling career experience. This is the reason that Marathon TS created an environment that rewards the performance of world-class IT professionals.

Our Clients

Marathon TS successfully provides services to leading systems integrators and to the federal government — including the Departments of State, Energy, and Homeland Security.

Our Satisfaction Guarantee

“Upon transferring to the DC area, I found Marathon TS to be my number one resource in building a new staff.”

Practice Areas

Custom Application Development

GIS Support/Development

IT Security


Intelligence Analysis

O&M Support

Employee Portal

Our Marathon TS Employee Portal opens up your world through quick and user-friendly access to the people, tools, and resources you need to complete your mission. Connect with other professionals to access and share in-depth information about every aspect of your work and ours. Marathon TS provides clients with world-class IT and professional services, which mean nothing without you.

A Very Special 12 Days of Christmas at Marathon TS

As we close in on the end of another year, we are so very grateful for the explosive growth we continue to experience here at Marathon TS. We are proud of the clients who support us and the work we do for them every day of the year. But, the holidays are a wonderful...

Andrew Tessier: A Marathon TS Success Story

Andrew Tessier started his career at Marathon TS as an intern during the winter of 2017-2018. He completed a second internship the following summer. In addition to helping the leadership team with their day-to-day responsibilities, Tessier used his time to begin...

UIC Foundation Benefit Golf Tournament

UIC Foundation Benefit Golf Tournament

Marathon TS proudly sponsored the 10th annual UIC Foundation Benefit Golf Tournament on September 23, 2021, at the Augustine Golf Club in Stafford, VA. The event raised funds for educational opportunities for qualified Alaskan natives and their descendants. The 2021...

Washington DC Metro

Marathon TS, Inc.
21145 Whitfield Place, Suite 106
Sterling, VA 20165
(703) 230-4200
(703) 230-4203 Fax

St. Louis

20 S Sarah St
St. Louis, MO 63108

San Diego

(858) 812-2057