Josh is a seasoned financial strategist with over a decade of experience in the government contracting sector, specializing in the complexities of the Department of Defense (DoD) landscape. With a proven track record in financial operations, compliance, and risk management, he is poised to help clients navigate their financial challenges and achieve sustainable growth.

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Previously serving as the Chief Financial Officer at a leading cybersecurity firm, Josh oversaw financial operations where he developed strategic financial plans that drove profitability and operational efficiency. His expertise in Defense Contract Audit Agency (DCAA) regulations and managing multi-million-dollar budgets uniquely positions him to provide insightful guidance tailored to the specific needs of each client.

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One of his notable achievements includes leading the firm through a strategic merger and acquisition (M&A) transaction. In this capacity, Josh expertly managed all financial aspects of the deal, including valuation, due diligence, and integration planning, ensuring a seamless transition that positioned the firm for future success. He understands the importance of strong stakeholder relationships and is committed to implementing innovative financial solutions that drive strategic decision-making.

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With a background that also includes roles as Controller and Senior Tax Accountant, Josh brings a wealth of knowledge in full-cycle accounting, project financial management, and tax compliance. This diverse experience enables him to deliver comprehensive consulting services designed to optimize financial performance and foster growth.

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Armed with a Bachelor of Science in Accounting from George Mason University and a strong foundation in Business Administration, Josh is dedicated to empowering clients with the insights and strategies needed to thrive in today’s competitive landscape. He looks forward to collaborating with organizations seeking to enhance their financial health and achieve their goals.

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David brings over two decades of specialized expertise in government contracting accounting, financial operations, and strategic business growth. With a proven track record of building, scaling, and successfully exiting companies in the defense and technology sectors, including two major M&A transactions totaling hundreds of millions in value, he provides clients with battle-tested insights into creating sustainable, compliant, and highly valuable businesses.

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As Chief Financial Officer and founding member of an aerospace and defense company, David guided financial operations from 2012 through a successful exit in 2023 valued in the hundreds of millions of dollars. Over this decade-plus tenure, he built world-class financial infrastructure, managed complex government programs, and positioned the company for maximum valuation while maintaining rigorous DCAA compliance and operational excellence.

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Prior to this role, David served as Controller for a science, engineering, and technology company, where he was instrumental in scaling the business from $3M to $60M in revenue before its successful acquisition by a major defense contractor. Managing over 50 simultaneous government programs, he built the financial systems and controls necessary to support rapid growth while ensuring audit-readiness and regulatory compliance.

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David's M&A expertise encompasses the complete life cycle of building businesses for successful exit: establishing scalable financial infrastructure, maintaining impeccable DCAA and FAR compliance, developing accurate forecasting and indirect rate models, managing due diligence processes, and structuring deals that maximize value for all stakeholders. He understands that successful exits begin years before the transaction with disciplined financial management and strategic positioning.

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Currently serving on multiple boards of directors, David brings both operational CFO experience and strategic governance perspective to his clients. He specializes in helping companies navigate the financial complexities that determine success in the marketplace while building enterprise value.

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Armed with a Bachelor's degree from Baylor University and holding Top Secret/SCI clearance, David is committed to helping government contractors not only survive the rigors of federal compliance but thrive financially and position themselves for long-term success, whether that means sustainable growth, strategic partnerships, or successful exit transactions.

Isaac Johnson is a Certified Public Accountant and partner at NSJ, bringing over twelve years of experience in public accounting. He holds a Bachelor’s degree in Accounting from George Mason University and has built a career specializing in audit, tax, and advisory services for clients across a range of industries.

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Isaac especially enjoys working with fellow business owners—helping them navigate financial challenges, strengthen operations, and plan confidently for the future. Since joining NSJ as a partner in 2018, he has been committed to delivering practical, relationship-driven guidance rooted in technical expertise and a genuine interest in his clients’ success.

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Outside of the office, Isaac tries to stay active by playing pickup basketball and a variety of sports with his kids.

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Sonya joined our team in 2022, she is a graduate of Virginia Tech with experience in corporate finance, business development and non-profit management. She is a skilled Senior Accountant who is passionate about helping individuals and small businesses navigate the complexities of tax preparation and accounting. She specializes in providing personalized financial strategies and comprehensive accounting services designed to maximize efficiency and minimize tax liabilities for her clients.

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She enjoys working closely with small business owners, acting as a trusted advisor to ensure their financial records are accurate and compliant. Sonya's expertise includes small business accounting, tax planning, and tax return preparation for both individuals and small enterprises. Clients appreciate her approachable style and dedication to simplifying complex financial concepts, enabling them to make informed decisions and achieve their financial goals.

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Sonya is committed to delivering exceptional service and building lasting relationships based on trust and a deep understanding of her clients' unique needs. In her free time she enjoys running, hiking and spending time with her family.

A Manager with nearly 15 years ofregional firm experience, Stephen A. Greer, CPA specializes in non-profit andgovernment contracting audit and attestation. He is a firm believer thattechnical expertise is meaningless if it isn't accessible; he prides himself onmaking the most dense regulatory requirements sound simple to his clients.

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Stephen is known for his 'clutch'performance in high-pressure situations. He recently spearheaded a 14-dayturnaround for a multi-year consolidated review that was instrumental in aclient’s continued eligibility as a government contractor before the SBA.

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Beyond the ledger, Stephen is adedicated gravel cyclist and bike-packer. Whether he's training for an upcomingsummer race or discovering new hidden trails across Northern Virginia with hisson, he brings the same endurance to the trail that he brings to the financialservices industry. A Northern Virginia local, his favorite way to offset a longday of debits and credits is a quiet sunset at a local lake, or pond reading abook.

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