About Environmental and Energy Services

Sustainable Environmental Services Corp. strives to provide innovative, sustainable solutions to the energy and environmental needs of our clients, and to be a pioneer in operating the corporation in a sustainable manner. Toward those goals, SES seeks to partner with progressive clients that are leaders in sustainability. SES also runs a 100% wind-powered website, purchases carbon offsets for necessary travel and operations, buys green power for its offices, utilizes public transit, purchases Energy Star products where possible, buys fair trade products where possible, recycles most of its waste, and donates to environmental and sustainability charities annually.

SES is a fully established energy and environmental consulting S-corporation, founded in 2004. SES is a Certified Small, Disadvantaged, and Woman-owned Business with the Oregon Office of Minority, Women and Emerging Small Business. SES is an equal-opportunity, affirmative-action corporation committed to cultural diversity and compliance with the Americans with Disabilities Act.

Dresden Skees-Gregory is the Principal of Sustainable Environmental Services Corp (SES), and personally provides most services to clients. Dresden started SES in 2004, and now works full time as a Principal of the corporation. She holds a BS in Environmental Science, a MS in Environmental Science and Engineering specializing in water quality, and is a PhD student in Public Policy at Portland State University. She is a LEED Accredited Professional, and is registered as ISO Environmental, Energy, and Superior Energy Performance Management Systems Lead Auditors.

Dresden has nearly two decades of experience in a variety of sustainability and environmental fields and has worked all over the Pacific Northwest. Dresden has well over a decade of experience in a variety of sustainability and environmental fields. She spent five years in environmental regulatory compliance for high tech firms, handling all aspects of industrial environmental discharges and impacts, and achieving ISO 14001 certification for two facilities. She spent three years at Xerox working on green product design, certification, recycling, and end-of-life management. For 2 ½ years Dresden was the Sustainability Coordinator at Portland State University, working on all aspects of sustainable operations and building at the University. Most recently, she spent 2 years working on energy efficiency and management with a local consulting firm. She became a full-time Principal of SES in 2008.

Follow Us


About Sustainability

Sustainability means meeting the economic, social, and environmental needs of the present without compromising the similar needs of future generations.

Sustainable Energy

Sustainable energy is defined as energy which, in its production or consumption, has minimal negative impacts on human health and the healthy functioning of vital ecological systems, including the global environment, and that can be supplied continuously to future generations on earth.