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By Light Professional IT Services's Overview

Total employees666
HeadquartersMcLean
Founded2002

By Light Professional IT Services LLC is a rapidly growing IT and cybersecurity solutions provider, specializing in C5ISR (Command, Control, Communications, Computers, Cyber, Intelligence, Surveillance, and Reconnaissance), cloud services, modeling & simulation, and enterprise IT solutions. Founded in 2002, By Light serves U.S. Department of Defense, Intelligence Community, and federal civilian agencies, as well as commercial customers. The company is committed to delivering mission-critical solutions that enhance operational effectiveness and security, leveraging cutting-edge technology and a deep understanding of client needs.

Where is By Light Professional IT Services's Headquarters?

HQ Function

Serves as the central hub for corporate strategy, executive leadership, business development, and administrative operations, supporting By Light's nationwide and global service delivery.

Notable Features:

Modern office facilities located in a prominent business park, designed to foster collaboration and innovation. Proximity to key government clients and partners in the National Capital Region.

Work Culture:

A dynamic and mission-focused environment encouraging teamwork, continuous learning, and dedication to client success. Emphasis on innovation and technical excellence, with a strong commitment to supporting national security objectives.

HQ Significance:

Strategically positioned in the National Capital Region, facilitating close engagement with federal government clients and access to a rich talent pool. Key for managing By Light's growth and diverse portfolio of complex projects.

Values Reflected in HQ: The choice of a professional and accessible location reflects By Light's commitment to client service, operational excellence, and attracting top talent in the competitive tech and defense sectors.

Location:

By Light Professional IT Services primarily supports U.S. government and defense missions, which includes deploying personnel and solutions to various CONUS (Continental United States) and OCONUS (Outside Continental United States) locations as required by client engagements. While specific permanent international offices may be limited, their operational reach extends globally to support military and federal agency requirements worldwide, including IT infrastructure, cybersecurity, and C5ISR systems in diverse theaters of operation. This often involves embedding teams at government sites or deploying field service representatives to support critical missions.

Street Address:

8484 Westpark Drive, Suite 600

City:

McLean

State/Province:

VA

Country:

USA

By Light Professional IT Services's Global Presence

Colorado Springs, CO, USA

Address: 12700 Black Forest Road, Suite 200, Colorado Springs, CO 80908

Supports key U.S. Space Force, U.S. Northern Command, and other Department of Defense clients located in and around Colorado Springs. Serves as a center for technical talent and innovation in the Rocky Mountain region.

Augusta, GA, USA (Martinez)

Address: 4210 Columbia Road, Suite 3A, Martinez, GA 30907

Provides direct support and specialized expertise to critical cyber missions and initiatives in the Augusta/Fort Gordon area, a key center for U.S. cybersecurity.

San Antonio, TX, USA

Address: 1777 NE Loop 410, Suite 1250, San Antonio, TX 78217

Strategically located to serve Joint Base San Antonio and other significant military and government installations, providing localized expertise and rapid response capabilities.

Buying Intent Signals for By Light Professional IT Services

Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.

Notable news
Hiring actively
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
*Example signal, not calculated in real time

Executive Team of By Light Professional IT Services

As of April 2025, By Light Professional IT Services' leadership includes:

Bob Donahue Jr. - Founder and Chief Executive Officer
John Costello - Chief Operating Officer
Jean-Louis Taling Sfeir - Chief Financial Officer
Robert L. Smith - Chief Technology Officer
Mike Hatcher - Chief Revenue Officer
Mike Osborne - Chief People Officer
Tom Nixon - General Counsel

Investors of By Light Professional IT Services

By Light Professional IT Services has been backed by several prominent investors over the years, including:

Sagewind Capital

Executive New Hires/Exits in the Last 12 Months

Hire2
Exits0

By Light has strengthened its executive team over the past year with key appointments in human resources and legal departments, reflecting its continued growth and focus on strategic talent management and corporate governance. These additions support the company's expansion and commitment to operational excellence.

New Appointments:

Mike Osborne, Mike Osborne appointed as Chief People Officer to lead human resources strategy, talent acquisition, and employee development programs at By Light.
Tom Nixon, Tom Nixon appointed as General Counsel to oversee all legal affairs, corporate governance, and compliance for By Light.

Technology (Tech Stack) used by By Light Professional IT Services

Discover the tools By Light Professional IT Services uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.

By Light Professional IT Services Email Formats and Examples

By Light Professional IT Services typically utilizes common corporate email formats. The most prevalent patterns are likely [first initial][last name]@bylight.com (e.g., jdoe@bylight.com) and [first name].[last name]@bylight.com (e.g., jane.doe@bylight.com). Variations may exist depending on internal policies.

[first_initial][last]@bylight.com, [first].[last]@bylight.com

Format

jdoe@bylight.com, jane.doe@bylight.com

Example

75%

Success rate

News and media

By Light WebsiteNovember 1, 2023

By Light Appoints Mike Osborne as Chief People Officer

By Light Professional IT Services announced the appointment of Mike Osborne as its new Chief People Officer. Osborne will lead all aspects of By Light’s human resources strategy, including talent acquisition, leadership development, compensation and benefits, and employee engagement programs....more

By Light WebsiteAugust 1, 2023

By Light Appoints Tom Nixon as General Counsel

By Light Professional IT Services announced that Tom Nixon has joined the company as General Counsel. Nixon will be responsible for overseeing all legal matters for the company, including corporate governance, M&A, litigation, and compliance....more

GovConWireFebruary 1, 2023

By Light Awarded $49M DISA Contract for Joint Regional Security Stacks Operations and Maintenance

By Light Professional IT Services has secured a potential $49 million contract from the Defense Information Systems Agency (DISA) to provide operations and maintenance for Joint Regional Security Stacks (JRSS). The contract involves supporting the network security architecture that provides a common security baseline for the Department of Defense Information Network (DoDIN)....more

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