GREGORY W SMITH, SR
President
Mr Smith has over thirty years of experience in the landscape / maintenance and irrigation fields. His career has involved all aspects of production, sales and design. As an owner of HLS, Mr. Smith oversees all aspects of contract administration and customer service, as well as provides support to the HLS team.
DAVE WILDERMAN
Vice President of Operations
Mr Wilderman has been active in the landscape industry for over twenty years. His experience and personnel skills enable him to provide the leadership and oversight necessary to provide a quality, Class A service every time. Dave oversees all aspects of service for our Sterling location. Under Dave’s leadership the Sterling location has enjoyed positive growth each year that he has been a part of our team. His extensive knowledge is a great asset to all HLS projects.
ROBERT ALEXANDER
Vice President of Operations
DOUG SEVACHKO
Branch Manager, Prince William
CORY LANIER
Branch Manager, Stafford
Mr Lanier has over twenty years of landscape management experience. Cory is a graduate of Virginia Tech with a degree in Horticulture. He oversees all aspects of service for our Stafford office. Cory’s focus on job quality and training has been instrumental in establishing a culture of excellent customer service and on the job performance.
JOHN ALDEN
Business Development Manager
Mr Alden has over twenty years of experience in the landscape industry in all aspects of customer service, account management, and business development. His experience extends from landscape management to design / build and landscape construction. John is a graduate of George Mason University. He also provides support to the HLS team for any and all aspects of proposals, communication, budgets and special events.
DAVID BROWN
Business Development Management
David has been active in the landscape / maintenance industry for over fifteen years. He has a Bachelor of Science in Horticulture from Virginia Tech. David is a Certified Arborist (#MA-5947A) and Tree Risk Assessment Qualified (TRAQ). His background and knowledge of horticulture adds a unique element to the HLS team approach.
Patrick Smith
Business Development Management
Patrick is the Business Development Manager for Prince William County, Stafford County, and Fredericksburg. He has over sixteen years of experience in the landscape industry in all aspects of customer service, account management, and market development. His experience extends from landscape management to contract administration. Patrick attended George Mason University.
SARWET ABBASI
Controller
ROBERT WARREN
Safety Director
FERNANDA LASASSO
Human Resources
Sabrina Puffenberger
Contract Admin
AREA MANAGERS
Our area manager team has extensive experience in the landscape / enhancement / irrigation industry. They are our front line of communication with our clients and will make sure that you are always aware of the condition of your property. Their background and knowledge of horticulture help make sure that our customer’s needs are met and that our properties always show their best.
FRANK MARTIN
Area Manager, Sterling
OSCAR GONZALEZ
Area Manager, Sterling
ANDY DANNENBERG
Area Manager, Sterling
JORGE CORTEZ 
Area Manager, Stafford
DAVE RUSCH
Area Manager, Prince William
RON LEWIS
Area Manager, Prince William
SEAN SEVACHKO
Area Manager, Prince William
LANDSCAPE DESIGNERS
Our landscape design team has extensive experience in the landscape industry. They are the creative thinkers behind the award-winning designs for which HLS has been recognized. Their related knowledge of horticulture helps to ensure that the right plant finds the right place.
PROJECT / OPERATION MANAGERS
ISMAEL CERVANTES
Project Manager, Prince William
EDGAR DUBON
Project Manager, Sterling
JUAN HERNANDEZ
Project Manager, Sterling
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