Founded in 1965, D&B Engineers and Architects (D&B) is committed to improving quality of life with innovative engineering solutions in sustainable, environmentally acceptable, cost-conscious applications. Recognized for wastewater management and drinking water quality expertise, D&B services public and private clients in multiple states from seven regional offices. We are guided by our directive ‘facing challenges, providing solutions’ and unified by an unwavering client-centric commitment to Total Customer Satisfaction.
Years in Business
% Client Satisfaction
D&B is an innovative and committed firm that strives for excellence. This is the core of our philosophy and is instilled in each team member as we provide clients with unparalleled quality, integrity and innovation.
D&B has a reputation for providing exceptional, proactive client service. We place the utmost emphasis on upholding this legacy and providing the same extraordinary level of service to each of our clients.
D&B ranks among the region’s leading engineering, environmental and architectural firms and we have been honored with many awards and accolades.
D&B’s team of over 250 architects, engineers, construction managers, environmental professionals and industry experts hails from engineering, scientific and environmental disciplines. See D&B’s principals & leadership.
With an exemplary degree of loyalty, diligence and dedication, we are individuals driven to produce high-quality work for our clients. Teamwork through commitment, culture and drive helps our firm flourish.
D&B Industry Involvement
D&B participates and holds leadership roles in many organizations and associations within the engineering, environmental and architectural industries.
William F. Cosulich Associates was founded in 1965 with four employees, a small office on Long Island and a focus on wastewater engineering. Two employees, Miroslav Dvirka and Nicholas Bartilucci, became partners in 1971 and renamed the firm Dvirka and Bartilucci Consulting Engineers (D&B).
Notable D&B Projects
Careers With D&B
Opportunity knocks regularly at D&B with competitive employee benefits, professional development, employee and professional engagement. We’re an ideal place to begin careers or explore senior positions.
D&B is Growing. Grow with Us!
D&B/Guarino Engineers, LLC
Established in 1980 and located in Trevose, PA, D&B/Guarino Engineers, LLC specializes in engineering services for water, wastewater, industrial waste and public works projects. D&B/Guarino’s extensive wastewater treatment and water pollution control design experience also includes operation of wastewater plants during major upgrades. Learn more about D&B/Guarino.
D&B Environmental Associates, LLC
D&B Environmental Associates, LLC was founded in 2005 to support a unique initiative to develop meaningful, effective, and practical solutions to improving Puerto Rico’s water quality. The initiative centers on the Río Grande de Loíza and Río La Plata watersheds that supply drinking water to approximately 40% of Puerto Rico’s population.