The American Council of Engineering Companies of North Dakota (ACEC/ND) is a nonprofit, voluntary, self-governing organization, incorporated under the laws of the state of North Dakota for the purpose of protecting the public interest and advancing the professional position of engineers in private practice.

All members of ACEC/ND are registered to practice professional engineering under the laws of North Dakota. Many also hold registration in other states. To qualify for membership in ACEC/ND, engineering firms must be established, owned, and managed by technically and legally qualified engineers with no other vocation or prejudicial business affiliations.