Sandra Troyano, J.D., PMP, President

Sandy has served as President since she joined the company in 2011. She is responsible for developing and executing strategy, building partnerships and broader business relationships, and guiding decisions on business and policy issues, human resources, and contracts. Sandy is also responsible for developing Toeroek’s environmental business.

Prior to Toeroek, Sandy was a Vice President with a Fortune 300 international consulting firm and General Manager and Corporate Counsel to an engineering and environmental consulting firm. She has over 25 years of experience working with government customers to develop solutions to issues of national significance.


GregoryGregory J. Hanna, P.E., Vice President, Commercial and National Security Services

As Vice President, Greg oversees execution of the company’s strategic plan and builds a culture of business development across all of Toeroek’s programs. Greg is also responsible for managing and developing Toeroek’s Commercial and National Security business lines.

Greg is a licensed Chemical Engineer with more than 30 years’ experience in government and commercial project work, business development, and strategic management.   He joined Toeroek in 2009, focusing on the growth of the business.


KevinKevin Geraci, Vice President, Environmental Services

Kevin is responsible for leading and developing the Environmental business line. As a long-term project and program manager, Kevin leads the company’s environmental services group in contract performance and business development. Kevin also builds corporate capabilities to align with clients’ needs and corporate strategy.

Kevin has over 20 years of experience leading contracts and teams in the delivery of environmental and national security services. Since joining Toeroek in 1999, he has held multiple positions with the company, including Program Manager for seven contracts and Director of Environmental and Records Programs.


MarianaMariana Tocheva, Vice President of Finance and Accounting

Mariana Tocheva is responsible for the overall financial management of the company. Mariana directs the company’s Contracts Management, Accounting and Project Controls Departments. She also oversees the design and maintenance of the company’s financial reporting structures and participates in strategy development.

Between 2001 and 2011, Mariana served as Toeroek’s Financial and Contracts Manager responsible for finance, accounting, contracts management, project controls, forecasting, cash management, billing, payroll, contracting and financial statements.