Executive Management Team

Sullivan International Group, Inc. is a team driven organization. The company is built around service areas that generate independent products and services. All team members are responsible for the success of each of the respective areas and actively support the development of service area. Each member of the team utilizes each other and the appropriate technical resources and personnel to get the job done. Sullivan's team approach has yielded dramatic success.

Steven E. Sullivan
Chief Executive Officer
Chairman of the Board

Steven E. Sullivan has been Chief Executive Officer and Chairman of the Board of Sullivan International Group, Inc. since November 1998. As the original founder of Sullivan International Group he has been involved in the firm’s growth and success from the beginning, taking a small one man company to #7 on the Inc. 500 by the end of 2004. Today he is responsible for providing strategic direction and guidance for all Sullivan business units, including multiple joint ventures and other strategic partnerships. Mr. Sullivan served in the United States Naval Submarine Force from 1983 to 1999. He has a B.S. degree from Southern Illinois University and a Global MBA from Manchester Business School, Manchester, England and multiple professional certifications.

Mr. Sullivan has served on the boards of several small businesses and non-profits in various capacities to include the Sullivan Children's Foundation (SCF), a California 501(c)(3) non-profit he helped create in 2004. He has served as the President and on the Board of Directors of San Diego EarthWorks, a nationally affiliated environmental education organization, the CalTrans Small Business Council (CSBC), and President of the Small Environmental Business Advisory Council (SEBAC). Steve is also an individual member of the Association of Environmental Professionals (AEP), and a corporate member of the Armed Forces Communications and Electronics Association (AFCEA), the National Defense Industrial Association (NDIA), the Association for Unmanned Vehicles Systems Association (AUVSI) and the United States Navy League.

Bruce A. Quattrone
Executive Vice President
Managing Partner

Bruce A. Quattrone, as EVP of Sullivan International works with the CEO on all company operations to include both operations as well as corporate support services. Mr. Quattrone brings to Sullivan a strong financial background and exceptional leadership skills which he will use to lead the company to fulfill their mission of being a world class firm. Mr. Quattrone joins Sullivan after over 26 years of proven leadership in similar engineering and environmental firms. He will continue to focus the management team on project execution, communication amongst all staff, team building and staff morale.

Before joining Sullivan, Mr. Quattrone spent eleven years as the Chief Financial Officer of Jones & Stokes where he integrated six acquisitions into the existing business operations which included nineteen branch offices. His executive leadership led to record levels of both revenue and profits and his efforts to buy out the company ESOP saved the firm $10Million over seven years. Previous positions boast similar accomplishments. As Vice President of Operations and Finance at ATC Associates, he managed the financial performance of seventy five (75) field offices and integrated eleven acquisitions into existing operations. While at Balsam Environmental Consultants, Inc; as the President and COO, he grew business 40% per year for the first two years and as the CFO for EIP Associates he turned around a $75,000 loss to a gain of $870,000 in a twelve month period.

Mr. Quattrone holds a B.S. degree in Accounting from San Diego State University. In his spare time he enjoys spending time with his family and deep sea fishing. He lives with his wife and 2 children in San Diego, CA.


Mark E. Smith
Chief Operations Officer

Mark Smith joined Sullivan in 2014 as Chief Operations Officer (COO) and participates in the overall strategic leadership of the firm in coordination with the CEO and EVP. Mr. Smith is directly responsible for the management and oversight of the company’s day-to-day operating activities and the execution of the annual business plan. Mr. Smith is an accomplished leader with over 25 years of experience in designing and building high-performance professional organizations and directing them in the successful identification, pursuit, and performance of complex environmental programs and projects for a broad spectrum of government and commercial clients. He was most recently a Managing Partner at Rock Creek Environmental, a small Woman Owned Business, and prior to that he held a succession of leadership positions over his 23 years at Tetra Tech, Inc., most recently as Vice President, Northeast Regional Manager, where he was responsible for the financial, technical and administrative performance of the region’s 6 offices and 150 fulltime employees.  

Mr. Smith as a proven track record of success in operations and program management with an emphasis on technical and financial management. He has demonstrated success with a broad range of government and commercial clients including the Navy, Army, Air Force, Army Corps of Engineers, Coast Guard, NASA, and the Departments of Energy, Interior, and Agriculture. His commercial background is focused in the energy sector with clients including Dominion Energy, Chesapeake Energy/Access Midstream, Sunoco, Shell, El Paso Energy, Occidental Energy, and National Grid. Technically, his career has primarily focused on the assessment of environmental impacts of major federal programs and commercial energy generation, distribution, and transmission projects (wind, hydroelectric, coal, natural gas, and nuclear power) on marine, aquatic, terrestrial, avian, and wetland environments and species including threatened and endangered (T&E) and other special status species.  He is also experienced in the management of major government and commercial remediation programs and projects for clients including the Navy and the Lockheed Martin Corporation.

Mark has a BS in Civil Engineering from Carnegie Mellon University, Carnegie Institute of Technology and resides in Washington, DC.

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