McNeff Engineering & Consulting McNeff Engineering & Consulting specializes in structural engineering services. We are a Subchapter-S California Corporation, and operate as a full-service professional consulting firm, equipped with state-of-the-art design and analysis programs. We serve clients from San Diego, Orange, Los Angeles, and San Luis Obispo Counties. We have provided services for projects as far as Norfolk, VA and the Gulf of Mexico. Our firm prides itself on both our responsiveness to the changing needs of the client, and our sensitivity to contractor related issues such as production and schedule.