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About Us

Environmental Assessment Services, LLC (EAS), located in Richland, Washington, provides high-quality environmental science, field technology, and other technical services to help our clients meet often-complex environmental regulations, policies, and other challenges while maintaining operational objectives. We are a small Alaska Native Corporation (ANC)-owned business certified under the Small Business Administration 8(a) program. Since 2005, we have served clients nationwide in a wide range of settings and operations. In 2015, EAS was acquired by KOMAN Holdings, LLC, a wholly owned subsidiary of Natives of Kodiak

EAS provides a highly skilled and experienced technical team dedicated to exceeding our clients’ expectations. Areas of expertise include

Our technical support staff includes specialists in operations, safety, finance, contracts, business administration, and communications, who help ensure our high standards are maintained.
Contact: Brett Tiller, CEO/Principal Scientist, (509) 948-5764;

EAS maintains the highest standards of ethical conduct at all times. We comply fully with all applicable federal, state, and local laws, regulations, and industry best practices. Along with helping others recognize and respond to environmental impacts, we are just as dedicated to our own environmental stewardship and waste minimization practices.

EAS is committed to the successful management of health, safety, environmental, and quality assurance values and objectives. As an environmental management company, we recognize the importance of ensuring environmental integrity and safe work conditions for all employees, clients, and the public. EAS actively promotes and implements systems and actions that reduce risks, foster safe and compliant work, and resolve environmental issues.

EAS Environmental Policy