The late Engr. Delfin M. Wenceslao Sr. organized D.M. Wenceslao and Associates Inc. (DMWAI) as an individual proprietorship in 1960. It was then incorporated in 1965 and is currently licensed by the Philippine Licensing Board as Category "AAA" with classification as "General Engineering" and "General Building."

Over the years, the company has engaged in different projects expanding its experience in the field of construction. DMWAI has gained and maintained the necessary factors of production to implement various infrastructure works and has gained respect as one of the top construction companies in the Philippines.

In a span of more than 40 years, the company has remained competitive and is expanding to further improve the quality and distinction of its services. It has further enhanced its specialization to other businesses such as land banking, real estate development, land development and mass housing. These undertakings are geared towards providing people with the basic foundations for a better quality of life. Above all, quality and service to the people remain as DMWAI's top priorities.