Air Management //

Perimeter Air Monitoring

Business Services //

Emergency Response


Oneida Total Integrated Enterprises (OTIE) is a Native American-owned, SBA-certified 8(a) small business.

Owned by the Oneida Tribe of Indians of Wisconsin, our mission is to preserve, restore, and enhance the environment for future generations through successful project delivery for our customers.

With the acquisition of T N & Associates, Inc. (TN&A), OTIE-TN&A offers technical skills and a mature business infrastructure developed through 20 years of experience providing environmental, remediation, construction, engineering, and emergency response services to federal, state, and local government agencies, as well as commercial customers in the United States and across the world.

OTIE-TN&A draws upon the knowledge and experience of nearly 200 employees. From our original office in Milwaukee, WI and offices located coast-to-coast, OTIE-TN&A integrates engineers, scientists, and construction managers for dedicated, cooperative, and businesslike delivery of services to enhance our customers' missions.

Our experts deliver timely, cost-effective and innovative solutions that provide sustainable benefits. We emphasize recycling and energy efficient construction, reducing life-cycle cost, and exceeding customer expectations.

To promote project success, we often enhance customer outreach with positive, productive communications with stakeholders using data visualization tools, customized graphics, site-specific websites, and informational materials to promote understanding, consensus, and community acceptance.