Cory Ravnaas is a founding principal at Hyalite and has over twenty-five years of experience in a variety of engineered infrastructure projects throughout the northwestern United States. Cory is a Certified Floodplain Manager (CFM) and served on the Montana Association of Floodplain Managers board for two terms between 2003 and 2005. He is an experienced hydraulic modeler and has completed several floodplain delineation models in Montana and Colorado. Cory is currently the City Engineer for two small cities where he also serves as the floodplain administrator. Cory is a principal project manager on general municipal and infrastructure related projects and is familiar with a broad range of project types. Cory obtained a B.S. and a M. Engr. in civil engineering from the University of North Dakota, Grand Forks, ND in 1996 and 1997, respectively. He is professionally licensed in Montana, North Dakota, Minnestota, and South Dakota.

Shannon Marinko has been licensed in Montana since 2003 and Idaho and North Dakota since 2010 as a Professional Land Surveyor. Mr. Marinko graduated from Montana State University in 1995 with a B.S. in mechanical engineering technology. His primary efforts have been providing cadastral land surveying for both private and government clients. For the past 18 years Mr. Marinko has provided clients with not only project land surveyor skills, but also total project manager skills, as well as a depth of knowledge of cadastral surveys, construction surveys, subdivision and conventional surveys, and static GPS and RTK GPS survey methods. Mr. Marinko is also an active member of Montana Association of Land Surveyors, has served as the President for the local chapter of MARLS, and is currently is the Vice President of the state organization.

Brett Megaard is a civil project manager/engineer in the firm and has over nine years of experience in a variety of civil engineered infrastructure projects throughout Montana. He is familiar with all civil related aspects of municipal, residential, and commercial development projects. Brett is one of Hyalite's project managers on water, wastewater, and general land development projects. He was born and raised in Bozeman, graduating from both Bozeman High School and Montana State University with a B.S. in civil engineering.

Sarah Friederichs is a civil engineer in the firm and has been involved in all aspects of civil engineering projects including: water and wastewater design, storm water drainage, road design, site grading, permitting, and the preparation of construction plans and specifications. Sarah moved to Bozeman in 2009 from Minnesota to attend Montana State University where she graduated with a B.S. in civil engineering with a bio-resource emphasis. While at Montana State, Sarah was an active member of Engineers without Borders and traveled to Kenya twice to construct a rainwater catchment system and composting latrines. In her free time, she enjoys, fishing, hiking, and snowboarding.

Jon FIlius graduated Montana State University in 2011 with a M.A. in architecture and has been a part of the team at Hyalite since 2016. Jon has been involved in the drafting work for each of the working groups at Hyalite. His strong background in building information modeling (BIM) has been a key piece to the implementation of Revit software at Hyalite. In his spare time Jon enjoys playing hockey, woodworking, rafting and hunting.