Dennis "Rusty" Sheppard


Rusty has an extensive background in several heavy construction markets including environmental remediation, demolition/salvage, and dismantling for mining, petroleum, railroad and heavy industrial clients. He has a long history of private and public corporate management, company start up and capitalization and strategic program development. Rusty leads the NASCO Board of Directors, and focuses on NASCO’s strategic growth in current markets, and expansion of corporate capabilities into new market areas.

Rick Luna

President & Chief Executive Officer

Mr. Rick L. Luna began his career with NASCO in 2007, currently serves as President, CEO, and Managing Director for NASCO, and has been a member of the Board of Directors since 2008. Prior to assuming his current position, Rick had served as NASCO’s Chief Financial Officer and Corporate Secretary. Since joining NASCO Rick has been instrumental in the merger and acquisition of multiple businesses, major contracts, and strategic partnerships. This has helped catapult NASCO’s national and international growth in Federal contracting, private construction, energy, and mining. He is responsible for the creation of NASCO’s energy program, and also serves as the President of NASCO Energy International (NEI), providing global EPC solutions and services. Prior to joining NASCO, Rick has had experience in private industry involved in venture capital, finance, and banking. In addition, Luna has been an entrepreneur in resort real estate, construction, and utilities. Rick is experienced in all aspects of market analysis, business acquisition, startup, operational management, diversification, and growth. Some of Luna’s additional strengths include due diligence, strategic partnering, legal and tactical matters, organizational planning, and corporate affairs. Rick graduated Magna Cum Laude with a Bachelor of Science in Business Administration (BSBA) degree in finance, with a minor in economics from Western Oregon University.

Gretchen Mann

Chief Financial Officer

Prior to working at NASCO, Gretchen worked as a Financial Advisor specializing in retirement and insurance planning as well as mutual fund investments. Gretchen graduated Cum Laude with a Bachelor of Science in Business Finance from the University of Idaho. As a Silver Valley Native she feels very blessed to have found her home with NASCO in 2009.  Gretchen has been instrumental in the development of NASCO’s internal financial reporting system, streamlining reporting processes, ensuring data integrity, preparing and presenting timely financial information. As CFO she is responsible for managing the financial risks to the corporation, managing the corporate treasury, as well as the financial reporting, planning, and record-keeping for NASCO, our respective business partners, and executive management.  Annually she works with NASCO’s external auditors to ensure NASCO reports their financials in compliance with Federal Contract Requirements as well as GAAP.  She also works with the President and COO to develop, establish, and manage the annual budget. Gretchen is responsible for managing the Corporate Business Unit as well as our Field Office Administrative Team. 

Jennifer Oertli

Chief Operations Officer

Jennifer is responsible for the overall Operations of NASCO and business development efforts with an emphasis on NASCO’s strategic growth. Her responsibilities for the overall operations of NASCO began in her role as Controller for NASCO. Jennifer also served as the Contracts Manager and the Director of Operations before assuming the responsibility of the COO. Jennifer attended the University of Idaho and attained her business degree from the University of Montana with an accounting emphasis. Having owned a successful construction business before her employment with NASCO, she understands and has experienced all facets of business operations. She also has a background in auditing, in which she helped companies increase their profitability by streamlining processes to increase overall efficiency and accuracy. As COO, Jennifer utilizes her knowledge gained through years of experience to enhance the operational management of NASCO, and encourage and empower staff through accountability and leadership.

Lee Nusser

General Manager – Mining Division

Lee Nusser is the new General Manager (GM) of the Mining Division of NASCO. Lee has over 10 years of experience in the mining industry, both in mining support products and services as well as in mining. Lee is responsible for developing the strategic plan(s) for the NASCO Mining Division by studying technological and financial opportunities; presenting assumptions; recommending and implementing objectives. In addition, Lee increases management’s overall effectiveness by recruiting, selecting, orienting, training, coaching, counselling, and mentoring managers; communicating values, strategies, and objectives; assigning accountabilities; planning, monitoring, and appraising job results; developing incentives; developing a climate for offering information and opinions; and providing educational opportunities for the NASCO Mining Division. Prior to joining NASCO, Lee has held Executive and Senior Sales and Operations positions with several International companies. His experience includes developing new technologies through extensive Research and Development, International Sales, and extensive Supply Chain Initiatives.


All of NASCO’s management and supervisory personnel are OSHA 30 certified and trained in CPR, First Aid, and AED.