S & R Technologies LLC

Shapiro & Duncan is the culmination of three generations of plumbers and mechanical contractors. In the mid-1930s Jake Shapiro started J. Shapiro Plumbing & Heating in Washington, D.C. After Jake retired, his son, David, a mechanical engineer, organized a mechanical contracting company in 1976 known as Shapiro & Duncan. In the early 90s, David s sons, Jerry and Sheldon, assumed operation of the company. Shapiro & Duncan continues to complete renovation projects but has added new construction, office buildings, government and industrial development projects to its portfolio. It has completed nearly 2,000 projects through the years. The main office in Rockville houses the management, including information technology, purchasing, education, safety, accounting and human resources and construction groups, including estimators, project managers and support personnel, the service department and design-build teams. The fabrication shop is in Beltsville, Md.

O'Connell & Lawrence Inc. is a multidisciplinary engineering and consulting firm established in 1994, specializing in construction consulting, project and program management, civil engineering, and surveying services. With a team of experienced engineers, surveyors, construction specialists, and claims analysts, the firm is dedicated to providing innovative solutions to complex problems for a diverse array of public and private sector clients. Renowned for its expertise in litigation support, O'Connell & Lawrence excels in areas such as scheduling analysis, dispute resolution, and construction management. The firm is committed to operational excellence, ensuring that safety and quality remain paramount in every project undertaken. Generated from the website

Wycliffe Enterprises, Incorporated is a certified 8 ( a ) Minority SDB, Woman-Owned, MDOT, WMATA Certified response solution contractor. We offer comprehensive facility management and maintenance, engineering, service/preventive maintenance and construction services.