Bohlen, Meyer, Gibson and Associates, or BMG, is an architectural firm based in Indianapolis, Indiana. It was founded in Indianapolis on April 10, 1853, as D. A. Bohlen, Architect by Diedrich A. Bohlen, German immigrant. In 1884, after Diedrich's son, Oscar D. Bohlen, joined the firm it was renamed D. A. Bohlen and Son. Four successive generations of Bohlen architects have worked at the firm: Diedrich A. Bohlen (its founder), Oscar D. Bohlen (Diedrich's son), August C. Bohlen (Diedrich's grandson), and Robert L. Bohlen (Diedrich's great-grandson). The firm specialized in institutional projects, especially civic, religious, and educational buildings. In 1971 Melvin B. G. Meyer acquired majority interest in the firm, which adopted its name in reference to its founder and its two principal ar