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NYC FIRM DIRECTORY

See which firms are active in New York City construction, and who they work with.

Permit-backed profiles for architecture firms, engineering firms, general contractors, and specialty trades, built from the New York City filings where each firm appears.

9,948
searchable firms
151,601
tracked NYC projects
42,812
shared-project connections
Oct 4, 2026
Last NYC update
Architects & Engineers
3,375 profiles
Most active: Robert Derector Associates
Browse architects & engineers →
General contractors
3,731 profiles
Most active: SUNRUN INSTALLATION SVC
Browse contractors →
Active now · Design
Robert Derector Associates186Tom Petersen Architect172PARKER AND WEST ENGINEERING, PLLC169
Active now · Contractors
SUNRUN INSTALLATION SVC137KALE CONSTRUCTION INC130STRUCTURE TONE, LLC65
Active projects = projects with a filing in the last 90 days. Based on PermitPipeline’s tracked New York City filing window. Generation firmref_20261006T024141, computed Oct 6, 2026, filings through Oct 4, 2026.
Shared-project spotlight
PARKER AND WEST ENGINEERING, PLLC ↔ SUNRUN INSTALLATION SVC2205 shared projects
GREEN RIVER ENVIRONMENTAL ENGINEERI ↔ NYSS LLC1134 shared projects
NY Building Associates ↔ BROOKLYN SOLARWORKS LLC768 shared projects
Organizations appearing on shared permit filings - association, not a proven working relationship.

Public pages show aggregates and relationships. Project records, addresses, and contacts are part of the paid leads product.

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