as one of the largest architecture,[2] engineering and interior design firms in the United States, and is listed in BD World Architecture's top firms.

[citation needed] They work in design for the federal government, health care, aviation, and hospitality.

[4] Lockwood, Andrews & Newnam, Inc. (LAN) a subsidiary of Leo A. Daly Co., offers planning, engineering and program management services to a variety of client types.

Architect Golden J. Zenon Jr. worked as a designer at Leo A Daly Co. early in his career, starting in 1955.

[5] This article about a United States architect or architectural firm is a stub.