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About

Delivering Today What Tomorrow Requires.

National security, economic competition, and technological innovation no longer operate in separate lanes—they converge in a single contested landscape. Quantum Leap excels at that intersection. We understand how domains, technologies, and capabilities converge, allowing us to invest ahead of a defined need and perform at the speed required to deliver lasting, meaningful outcomes.

Our purpose is straightforward: protect our nation's strategic advantage by developing exceptional capabilities today for tomorrow's challenges.

Founded
2019
HQ
Leesburg, VA
Focus
Defense • Technology • Innovation
Differentiator
Capabilities Ahead of Need
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True to our name, Quantum Leap enables clients to move beyond incremental improvements and achieve quantum leaps in performance, readiness, and resilience.

LEADERSHIP

Executive Team
03

JIM MILLER

Founder & CEO
PERSONNEL FILE
NAME
JIM MILLER
Role
Founder & CEO
Expertise
Strategic Foresight • Transformational Visionary • Engineering Excellence • Outcome-Driven Execution
CREDENTIALS
25+ Years National Security Leadership • Founded & Scaled Four Defense Technology Companies • Technology Innovation with National-Level Programs

JUSTIN COOK

Chief Technology Officer
PERSONNEL FILE
NAME
JUSTIN COOK
Role
Chief Technology Officer
Expertise
Technical Ops • Cyber • PRC-Focused Counterintelligence • AI/GPU • Complex Integration
CREDENTIALS
National Intelligence Award • CJCS & Director CIA Honors for Generational Impact to National Security • Executive Leadership in Intelligence Operations, CI & Defense Tech

BRYAN MCCARTHY

Chief Operating Officer
PERSONNEL FILE
NAME
BRYAN MCCARTHY
Role
Chief Operating Officer
Expertise
Business Operations • Cross-Functional Team Management • Disciplined Execution at Scale
CREDENTIALS
U.S. Army Officer (Ret.) • Multiple Forward-Deployed Leadership Roles • Organizational Growth & Operational Alignment

ED RYAN

Chief Financial Officer
PERSONNEL FILE
NAME
ED RYAN
Role
Chief Financial Officer
Expertise
Corporate Finance • Governance & Compliance • Financial Discipline
CREDENTIALS
30+ Years Public Accounting • Founder & Managing Partner, CPA Firm • M&A Advisory

BRIAN SANDERS

Chief Information Officer
PERSONNEL FILE
NAME
BRIAN SANDERS
Role
Chief Information Officer
Expertise
Networking & DevOps • Enterprise Infrastructure • Automation at Scale
CREDENTIALS
Engineering Leadership • Built Technology & Engineering Infrastructure at Multiple Defense Technology Companies

JOHN YESCAVAGE

Chief Strategy Officer
PERSONNEL FILE
NAME
JOHN YESCAVAGE
Role
Chief Strategy Officer
Expertise
Business Strategy & Revenue Growth • Client Insight & Engagement • Solution Design & Innovation
CREDENTIALS
20+ Years National Defense Leadership • Accelerated Growth of Multiple Defense Technology Companies • Led Enterprise-Wide Transformation
Board of Directors
04

Jim Miller

Chairman of the Board

Dayne Baird

Board Member
Partner, The Carlyle Group

Gordon Burns

Board Member

Jack Kerrigan

Board Member
Managing Partner, Razor's Edge

Wil Langenstein

Board Member
Principal, The Carlyle Group

Larry Prior

Board Member
Operating Executive, The Carlyle Group
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newsroom
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LATEST UPDATES

News
October 8, 2026

QUANTUM LEAP CHOSEN AS RECIPIENT OF THE NORTHERN VIRGINIA TECHNOLOGY COUNCIL CYBER50 AWARD

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News
September 1, 2026

Quantum Leap Named to Washington Business Journal's 75 Fastest Growing Private Companies

Recognizing the region's most dynamic, high-growth private businesses.

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News
September 1, 2026

QUANTUM LEAP RANKED #10 AMONG GREATER WASHINGTON'S LARGEST CYBERSECURITY COMPANIES

An annual ranking spotlighting the region's leading cybersecurity firms.

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→
Read All news
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Community impact
004

Investing in the causes our team cares about

Believing in the values of our team members, we prioritize the causes for which they are most passionate.
Organizations we currently support include:
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HQ
940 Sycolin Rd, Suite 110

Leesburg, VA 20175
United States

© 2026 Quantum Leap Partners, LLC.

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