Leading the Practice of Program Management
Custom Group, LLC is a full-service engineering firm founded in 1984, delivering program and construction management, general contracting, and real estate development across Puerto Rico and Florida. Over four decades, it has completed more than 300 projects and 10,000 units, delivered over $600 million in construction work, and managed more than $10 billion in grant-funded programs for residential, commercial, industrial, and government clients.
Ramon J. de LeonPresident
Fernando J. de LeonChief Operating Officer
Ramon C. de LeonSenior Counsel
Mark A. GonzalezProgram and Construction Management Services Director
Francisco J. SanchezConstruction Services Director
Alexei HernandezProgram Director, HUD Compliance Initiatives - Housing
Carlos RentasProgram Director, FEMA PA Compliance - Housing & Infrastructure
Strategic orchestration of multi-project construction programs with private and federal funding sources, delivering resource, cost, and schedule efficiencies across complex portfolios from planning through closeout.
General contracting and construction delivery for residential, commercial, and industrial projects, with specialized capability in highway construction, site operations management, field inspection, and professional estimating.
Award-winning community development spanning residential and mixed-use property types, combining in-house construction capabilities with decades of developer expertise to deliver innovative projects across Puerto Rico and Florida.
CDBG-DR, HUD, and FEMA PA-funded program management covering housing reconstruction, infrastructure recovery, federal compliance, grant administration, and labor regulatory compliance.
Residential · Multifamily Residential · Affordable Housing · Commercial · Hospitality · Government · Infrastructure · Industrial · Highways & Roads
Puerto Rico · Affordable Housing · Client: Puerto Rico Department of Housing (Departamento de la Vivienda)
Construction management for Puerto Rico's CDBG-DR-funded R3 Program, coordinating planning, design, and construction to deliver resilient housing for families affected by Hurricane Maria.