about our company

Tuba Group, Inc. was founded in February, 2002, is a small business and a CMMI® Level 3 Rated, ISO9001:2015 certified organization. Our firm was established as a small business with a primary focus in accounting and auditing service offerings. Through the years we have expanded our business and services to include accounting, financial, systems, technical, engineering, administrative, management, and subject matter expertise services. We currently have employees in 26 states and U.S. territories.

Our Mission

Our mission is to provide value added solutions that contribute to the success of government agencies, small businesses and independent professionals by leveraging the skill and talent of our most valuable resource – our people.


Our dedication to our principles of professionalism, responsiveness, and quality defines our corporate culture and allows us to provide superior service to our customers. Learn more about our values below.


We are one of the leading firms in the area.  Tuba Group is characterized by our expertise, experience and dedication of our staff and as a result each client receives personalized and professional attention.  Our high standards of excellence, knowledge and willingness to go the extra mile set our performance far above other firms.  We ensure that every client has access to the expertise of our entire firm.


We begin by listening to our clients, discovering their problems and providing the appropriate solutions.  We establish effective communications channels with our clients and use them to stay responsive, and provide innovative, value added solutions.  Through our hard work and quick turnaround time, we have earned the respect of our Federal, state/local government agency, commercial and nonprofit clients.


A professional services  firm endures and prospers only through its reputation for excellence. Consequently, our top priority is providing the highest quality service to our clients. Our firm's reputation reflects the high standards we demand of ourselves. Our people are our greatest resources. They shape our culture and our success.

We feel it is critical to foster an environment that encourages continuing professional education to improve our technical expertise and service to our clients.

Management bio
John Tuba, CPA MBA
President and Chief Executive Officer

John Tuba is the CEO and founder of Tuba Group. He is responsible for the firm’s strategic direction, business development, and successful delivery of client services, including oversight of project management, quality assurance, and final issuance of all deliverables and reports. With a desire to deliver customer focused technical solutions centered around an employee friendly work environment, John founded Tuba Group in 2002.

John has over 19 years of experience in public accounting, providing Federal Government audit, advisory, and accounting services. During his 19 year career, John has briefed senior corporate and government officials on financial matters. Prior to founding Tuba Group, John was employed with a “Big Four” accounting firm financial audits. John holds a Masters of Business Administration degrees from Georgetown University’s McDonough School, Washington DC and ESADE Business School, Barcelona Spain. John also holds a Bachelors of Science in accounting from Virginia Commonwealth University.

David Crooks, CPA

David has over 25 years of experience providing consulting and assurance services to the public and private sector. He is responsible for overseeing the firm’s delivery of audit and assurance services to governmental and private clients. David has a Bachelor of Business Administration Degree from the University of the District of Columbia and holds CPA licenses in Maryland and Virginia. David joined the Tuba Group in 2016.

Kazi A. Mamun, BSEE, MBA
Director of Energy and Engineering Services

Mr. Mamun comes with nearly three decades of energy services and engineering experience working in various energy leadership positions at fortune 100 utilities. He played a significant role in strategic business development and thought leadership roles at private environmental, engineering, and research firms with global breadth. Mr. Mamun’s experience includes working with small businesses providing resource efficiency and energy resiliency project development services to the Department of Defense as well as some of its service headquarters and installations.   Mr. Mamun was the top of his class at the Executive MBA at Pace University New York and has a Bachelor of Science in Electrical Engineering from the University of Idaho. He was the founder and President of Bangladesh Student Association while at the University of Idaho. Mr. Mamun contributed to discussions at the World Economic Forum and has held advisory roles at the Association of Energy Engineers. His lifetime contribution to the energy industry earned him the prestigious "Legend of Energy" recognition from AEE.  

Shirley Nelson
Human Resources Director

Shirley has over fifteen years of experience in the human resources profession that spans across all facets of human resources management; this includes the areas of strategy development, establishing and implementing human resources policies and practices, and talent management at several national companies. She believes a good human resources department is critical to the success of the organization.  In her most recent position, Shirley was the human resources manager for a regional CPA firm supporting the Federal government in Washington DC.

Hervey Tuba

Mr. Hervey Tuba guides Tuba Group’s Corporate Support functions, managing administrative and technical support functions. Mr. Hervey Tuba has over 13 years of varied experience supporting federal contractors as well as working directly with Federal agencies providing information system, information technology, administrative, and managerial support, and is a proud graduate of Virginia Tech, Blacksburg Virginia.

Our most valuable resources are our people.
Do you want to join our team?  We’re happy to hear from you!
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