Constant Source LLC, 507 N Main St, Port Chester, NY 10573, US

Ahearn Holtzman offers complete construction management services from preconstruction to project completion. Its preconstruction services include document review, cost estimates, construction scheduling, bid packages and contract awards. Its construction services include obtaining permits and licenses, coordination of contractors, quality control, change orders, cost accounting and field reports. Ahearn Holtzman utilizes remote project monitoring technology, which uses the Internet to send weekly updates, project photos and schedules to the company s clients. Ahearn Holtzman s clients include IBM, the New York Times, Chevron, Deloitte & Touche and Kraft Foods. Ahearn Holtzman is headquartered in Port Chester, N.Y.