Since 2007 Stephen has been an active member of the Illinois Association of School Business Officials (IASBO), and in 2013 was elected to serve on the Service Associate Advisory Committee (SAAC) for IASBO. In 2016, Steve was elected to serve as the Chairperson for the SAAC. In addition to IASBO, Steve is also an active member in Illinois Association of School Boards (IASB), the Illinois Associates of School Administrators (IASA) as well as the Suburban School Superintendents Association (SSSA). Before joining Green, Stephen served honorably for 8 years in the United States Marine Corps, and is a Veteran of Operation Iraqi Freedom II-2, and he brings that knowledge with him to Green and all of our clients. His anti-terrorism and safety and security expertise has helped numerous Districts prepare pragmatic Safety and Security plans. He also assists our clients with their community engagement and referendum assistance needs, and provides them with the support necessary to run a successful referendum campaign. When not working, you will most likely find him outdoors with his two kids, fishing, hiking, skiing or he’s somewhere on or under the water. “Helping our clients provide learning environments to students, where they can feel safe and secure no matter what else is going on around them, is one of the most rewarding things we can do in schools. This allows them to learn at a high level, open their minds, and develop the skills needed to become lifelong learners”.

Bill is a licensed architect having received his Bachelor of Architecture in Design from the University of Illinois, Chicago.  He is a member of the American Institute of Architects (AIA), and the Construction Specification Institute (CSI).  Bill is a senior project architect with the firm; assigning team members, coordinating with consultants and communicating with clients throughout design and construction. Bill takes pride in having his projects completed on time and within budget.  When he’s not busy cheering his Chicago Blackhawks to another Stanley Cup championship, Bill, a lifetime hockey enthusiast, puts on his pads and skates year round at his local park district rink.  During college, Bill participated in the University’s year-long study abroad program in Versailles France, where he had the opportunity to travel extensively.  While studying French and European architecture, he met his Swedish born wife Maria. Together they have two daughters.   “Architecture is the synthesis of art and science. An architect must use his knowledge of the building sciences to provide aesthetically pleasing, cost effective solutions that satisfy the client’s program, are responsive to the environment, and withstand the test of time.”

Andrew is a graduate of The University of Illinois at Chicago with a Bachelor of Architecture in Structures, a Licensed Architect in Illinois, holds Council Certification from the National Council of Architectural Registration Boards (NCARB) and is a member of the American Institute of Architects (AIA). He has spent his entire architectural career creating pre-kindergarten through twelfth-grade educational environments. When not pursuing his life’s dream of being an Architect; you can most likely find Andrew in the garage or behind the wheel of one of his “toys”. As an avid collector of special edition Camaros; Andrew, along with his wife Katie and two sons may be either tinkering under the hood, applying a fresh coat of wax, or traveling across country to various Camaro themed car shows. Andrew also enjoys performing D.I.Y. projects around the house. “As an architect specializing in school design, nothing is more thrilling than taking an idea or a mental image and seeing it grow from initial sketches into a physical educational environment for young aspiring minds to learn and be prepared for their future.”

Todd has served as project architect and designer on a wide variety of renovation and new construction projects for both K-12 and higher educational facilities, local municipalities, the Capital Development Board, state institutions and private business/ commercial clients.  He has served as project architect and designer on multi-million dollar school construction and renovation projects for public school districts in Springfield, Spring Valley, Eureka, Waverly, Casey, Shiloh and Shelbyville. Todd is a detail oriented individual who is intimately involved with each aspect and each phase of a project, from project inception through construction close-out.

​George Prosiliakos originally started at GreenAssociates as an intern during his college years and stayed with GA after graduation, developing his foundation and love for architecture. He received his Bachelor of Architecture in Design from the University of Illinois at Chicago. He is a licensed Architect, is a member of the American Institute of Architects, and is certified by the National Council of Architectural Registration Boards (NCARB).   For more than 22 years, George was the Principal of his own architecture firm working on a wide range of architectural projects throughout the Midwest. We are happy to have George back as Associate Principal, focusing his 25+ years of experience on our preK-12 educational clients. For George, spending time with family and friends in his parents’ native country of Greece is very important. Also important for George is spending time with his 4 children; all have played or are still playing competitive soccer, with George attending almost all of them. On one occasion, they visited Europe to play several matches in Frankfurt and Amsterdam.

Andrew's got a designer’s eye for aesthetics blended with an engineer’s technical precision. With over 28 years of experience, he is responsible for the day-to-day activities and coordination of projects. He works with internal resources and consultants, as well as maintaining communication with clients and answering any questions they may have regarding their projects. Since joining GreenAssociates in 2001, he has been a strong advocate for sustainable and efficient design.