Perry Horner, President

Perry began studying wetland science and listed species with the U.S. Army Corps of Engineers (ACOE) in North Carolina in 1987. In 1991, he transferred to the ACOE Tampa Regulatory Field Office as an ecologist. His main responsibility in this position was the field inspection of federal jurisdictional delineations. In 1994, Mr. Horner resigned from the ACOE and established Horner Environmental Professionals, Inc. (HEP). HEP is a private consulting firm specializing in wetland delineation, permitting, mitigation design, planting, monitoring, and listed species surveys and management plans. 

Jeff Batten, Senior Ecologist

Jeff began his environmental career working on the Bay Area Regional Atmospheric Chemistry Experiment (BRACE) in the Tampa Bay area, studying air toxic compounds while a graduate student at the University of South Florida in 2001. He then worked with the Hillsborough Environmental Protection Commission (EPC) as an Environmental Specialist and contract employee before accepting a permanent position as an Environmental Scientist in 2003. His main responsibilities at EPC were permit review and compliance, jurisdictional determinations and Uniform Mitigation Assessment Method (UMAM) review. In 2006, Jeff joined HEP as the Senior Ecologist.

Through his 10-year tenure at HEP, Jeff has worked on numerous projects that include: project management, listed species surveying, wetland mitigation, permitting and design, wetland delineations, conflict/compliance resolution and restoration, expert witness and testimony and eminent domain process and strategy.

Jared Thompson, Ecologist, ISA Certified Arborist, GIS Analyst

Jared began his career in ecology shortly after graduating with a degree in biology from Western Kentucky University. For four years he worked on multiple avian projects ranging from trapping and banding migrating birds to population monitoring for several endangered species. After having spent that time in the field, he returned to school and received his Master's Degree in Environmental Science, with a concentration in GIS and wildlife and forest ecology. Jared's experience at HEP includes mitigation maintenance and monitoring, geospatial information collection and analysis, and tree and listed species permitting. 

Matt Gold, Aquatics Manager, Wetland Management

Matt has been working in the lake and wetland management field since 2003. His experience in herbicide application enables him to accurately assess vegetation concerns within waterways. Matt utilizes chemical, physical removal and biological methods for aquatic weed control and mosquito control to provide effective solutions for each clients' needs.

Cassi Mihokovich, Geographic Information Sciences Technician 

Cassi graduated from Florida State University in 2016 with a BS in Environmental Studies and Geography with concentrations in Spanish and Urban and Regional Planning. She returned to FSU the following semester to pursue a Masters in GIS degree. As a graduate student, she worked with Florida Natural Areas Inventory as a part-time GIS Technician. At FNAI, she worked on creating complete road networks for Florida's parks. After she graduated in 2017, she returned to her hometown of Tampa to accept a position at HEP as a GIS Technician. During her time at HEP, she has worked on making maps and figures for surveys, wetland mitigation projects, Phase I Environmental Site Assessments, FWC and SWFWMD permits, and more. 

Ryan Cummings, Ecologist

Ryan began working in the environmental field shortly after graduating from Florida State University with a BS in Environmental Studies and Geography.  Since graduating in 1999, he has worked for or been involved with various companies, organizations and/or programs (Florida Forever) that required the assessment, management and/or restoration of Florida’s native habitats and ecosystems.  The work that Ryan was primarily responsible for included the performance of a wide variety of natural resource assessments (due diligence assessments, wetland assessments, conservation management plans, baseline inventory assessments, water quality assessments, superficial hydrology assessments, prescribed fire plans, gopher tortoise surveys, vegetation monitoring, environmental resource permitting, asbestos inspections, soil/groundwater testing/remediation, emergency responses, etc.). His experience has been beneficial to many public and private land management organizations, helping them to acquire new conservation properties, develop better land management strategies, and identify possible threats or impacts to conservation lands, such as soil/groundwater contamination and/or the spread of invasive exotic vegetation. Ryan’s experience at HEP has included wetland mitigation maintenance and monitoring, listed species surveying and permitting, and Phase I & II ESA’s. 

Trey Thrailkill, Geologist

Trey graduated from the University of South Florida in 2011 with a B.S in Geology and quickly began work in the environmental field specializing in petroleum contaminated sites. Soon after he accepted a job in Alaska where he worked as a logging geologist in the oil and gas fields, primarily on the North Slope . In 2016 he grew tired of the commute and returned to Florida full time in the environmental field, once again working mainly on sites associated with the Petroleum Restoration Program with a heavy emphasis on remediation. In 2018 he accepted a position with HEP where he is once again focused on Phase II investigation and remediation while also assisting in wetland mitigation projects and general field data collection