Ewing Irrigation & Landscape Supply

Ewing is the largest family-owned supplier of landscape and water management products in the country. Ewing offers commercial and residential irrigation supplies, water management solutions, landscape and turf products, hardscapes, landscape lighting, water features, erosion control, industry-leading seminars and more to professionals serving the landscaping, sports turf, golf, agricultural and industrial industries.

Environmental Quality Resources, LLC

The mission of Environmental Quality Resources, LLC is to preserve and protect our watersheds that lead to the Chesapeake Bay through environmental construction. Environmental Quality Resources, LLC is an environmental construction and landscape company specializing in stream restoration. EQR has created, mitigated, or restored over 1,000 acres of wetlands. We also do freshwater and tidal wetlands creation and mitigation, bioretention facilities construction, and water quality and quantity control devices such as storm water management ponds. EQR was founded in 1991, and has grown to over 225 trained and dedicated employees.

Etera Green Roof Plants

Etera® is the quality leader in the green roof plants marketplace.  Their unparalleled horticultural expertise means our customers have access to the highest quality plant material available in the industry.  Etera offers enormous capacity, a wide range of green roof plant varieties, a national distribution network and year-round availability. They offer standard plant mixes with proven performance as well as custom mixes including ornamental plugs. They also provide sedum bulk cuttings and sedum 72 cell plugs for green roof, green wall and on grade projects.

Downes Forest Products

Downes Forest Products LLC is a top soil company that specializes in delivering and installing soil, aggregates & mulch to commercial services in bulk to places where there is no access or where speed and efficiency is required. Downes experience and fleet of blower trucks and support equipment allows them to deliver bulk soils in very efficient timeframes.

Dialog Architecture & Planning

Dialog is comprised of passionate designers who believe in the power of built form to meaningfully improve the well-being of their communities and the environment we all share. DIALOG is a fully integrated multi-disciplinary design firm incorporating architectural, engineering, interior design, urban design and landscape architecture.

Conservation Technology

For over 25 years, Conservation Technology has been developing and manufacturing innovative products and systems across a range of disciplines in the built environment.  Their expertise ranges from rainwater harvesting systems and green roofs to energy efficient weather sealing and motion sensing ventilation thus providing a truly multidisciplinary approach.


Founded in 2005, Skyland USA, producer of rooflite soil products, has become known as the premier provider of high-quality green roof media in the industry. With a proven track record, they have provided rooflite soil for more than 1000 green roof projects across the U.S. and the Americas. Green roof media is all rooflite does, with a range of rooflite soil products, a blender network across North America, experience with complex logistics and top-notch customer service. Their products have supported successful green roof projects on vegetated rooftops covering more than 11 million square feet.

Nedlaw Living Walls

Nedlaw Living Walls is committed to the integration of biological systems into the built environment as a means of improving building sustainability and the well-being of their occupants. We provide complete services for the design, installation and maintenance of our patented Living Wall Biofilters. Nedlaw Living Walls has since rocketed to the forefront, being the North American premier designer and installer of active living wall systems with over 150 Living Wall installations and strong involvement in University and industrial research.

GSky Plant Systems, Inc

GSky Plant Systems, Inc. is the leading provider of indoor and outdoor vertical living garden systems in North America. Through innovative technologies that enable plants to grow in non-traditional environments, GSky green walls are transforming urban landscapes and enriching people’s lives. The company’s primary product is the Green Wall Panel system, the most sustainable and comprehensive green wall system in the industry. GSky works with a broad range of corporate, private, academic, and governmental clients, and the company’s green walls are seen on universities, hotels, grocery stores, corporate buildings, shopping centers, lobbies, airports, and homes across North America.

Hunter Industries

Hunter Industries is a global leader and manufacturer of irrigation, landscape lighting, and custom manufacturing products. Their product innovations have earned them the reputation and ability to do business in 125+ countries across the world creating innovative, high-quality solutions for the Irrigation, Outdoor Lighting, and Custom Manufacturing industries.

City of Washington D.C.

The Department of Energy & Environment (DOEE) is the leading authority on energy and environmental issues affecting the District of Columbia. Using a combination of regulations, outreach, education, and incentives, our agency administers programs and services to fulfill their mission. They work collaboratively with other government agencies, residents, businesses, and institutions to promote environmentally responsible behavior that will lead to a more sustainable urban environment.

World Green Infrastructure Network

The World Green Infrastructure Network (WGIN) is a non-profit organization that representing green infrastructure in cities outside North America. They seek to be a globally-important motivators of the use of green infrastructure in cities; to promote education of green infrastructure benefits; to promote green infrastructure research and expansion; and publicize the global environmental and cost-saving advantages of green infrastructure, especially those related to reducing climate change problems. 

Toronto & Region Conservation Authority

With more than 60 years of experience, the Toronto & Region Conservation Authority (TRCA) is one of 36 Conservation Authorities in Ontario. Working with municipalities and other partners to look after the watersheds of the Toronto region and its Lake Ontario waterfront, they help people understand, enjoy and look after the natural environment. Their vision is for The Living City®, where human settlement can flourish forever as part of nature’s beauty and diversity.

Sheridan Nurseries

For almost a century, Sheridan Nurseries has been providing superior products, services and helpful advice. They pride themselves on their selection and quality, exceptional guest service and knowledgeable staff who are trained to answer just about any gardening questions you may have. Sheridan Nurseries was founded in 1913 and has grown to 8 Garden Centres with over 900 acres of farmland. They are also a major supplier of goods to garden centres in eastern Canada and the U.S.A. Their nursery has also been responsible for several plant introductions including Green Gem and DeGroot’s Spire Cedar.

New York Green Roofs

New York Green Roofs is a full service green roofing firm that provides consultation, design assistance, project management, installation and maintenance services.  Partnering with owners, architects, landscape architects, engineers, community organizations, institutions and manufacturers, they redefine the skyline into a more livable, efficient and sustainable part of the city.  Their collaborative designs, thoughtful installations and programmed maintenance produce some of the city’s most iconic green roofs.

Oly Ola Edgings

For almost 4 decades, Oly-Ola has concentrated exclusively on producing the most complete line of high quality landscape edging products in the lawn and garden and green roof industries. From product specifications to shipping and delivery information, their staff is available to answer your questions, make recommendations, and assist in meeting your edging needs. To ensure your satisfaction and success, Oly-Ola will make certain that you get the right edging product, delivered to the right place, at the right time. The majority of their raw material comes from post-consumer plastics and is purchased from a consistent commercial supplier.


greenscreen® is a three-dimensional modular trellis system providing you with endless combinations for creating green facades, freestanding elements, shapes and fencing. greenscreen® can transform space or define it… act as a wall, change a facade or create an environment. greenscreen® is committed to providing the highest quality green wall products with the lowest environmental impact while advancing customer service, the unique contributions of each individual, a healthy work environment and a respect for diversity. As a member of the global community greenscreen® strives to be a part of the solution to our environmental challenges and a socially responsible model for others.

Emory Knoll Farms / Green Roof Plants

Emory Knoll Farms is the only nursery in the U.S. dedicated solely to the propagation of plants for the green roof industry.  Their wholesale nursery has been in operation since 1998, and their green roof plant business became incorporated in 2004. The first nursery in North America to focus on green roof plants, Emory Knoll Farms has been the nation’s leading supplier of plants and plant expertise for extensive green roof systems since 2000. They have significant first-hand experience working with a variety of roofing systems, soil mixes, manufacturers & designers, and climates. 

Eco-Roofs LLC

Eco-Roofs specializes in pre-grown, fully established green roof trays, plants, plugs, cuttings, vegetated mats, green walls and other supplies. Eco-Roofs has the most economical, highest quality, easiest to install pre-grown green roof trays on the market and available now. Eco-Roofs pre-grown trays come in several styles and depths beginning with our very affordable basic tray which can be enhanced with a biodegradable liner up to 6 inches deep.  These trays are designed for maximum savings on installation labor while providing immediate green roof benefits and aesthetic pleasure for an affordable price and years of productive use. Thousands of square feet are grown on speculation and maintained to save you even more time.