DeMatteis Organization

What DeMatteis Organization does

The DeMatteis Organization is a third-generation, family-owned group of construction, real estate development, and property management companies founded in 1918 and headquartered in Elmont, New York. The firm operates as a fully integrated, full-service enterprise through three core affiliates: Leon D. DeMatteis Construction Corp. (LDDCC), which provides construction management, general contracting, and design-build delivery; a real estate development arm that builds middle-income, luxury, and commercial office properties; and R/Y Management Co., Inc., which manages over 10,000 townhouses, rental apartments, cooperatives, and condominiums in the New York metropolitan area. A separate affiliate, DM Airport, LTD. (DMAL), operates the Morristown Municipal Airport under a 99-year lease/operating agreement, adding a long-duration infrastructure revenue stream.

The company's underlying technical capabilities center on integrated design-build delivery (with many employees certified by the Design-Build Institute of America), in-house registered architects and engineers enabling pre-construction involvement, and LEED-certified personnel supporting green building programs. Notable project credentials include the first Net Zero Energy School in the Northeast U.S. (P.S. 62), multiple LEED Gold and Silver certifications, and ENR Top 400 Contractor and ENR Top 100 Green Building Contractor recognition.

DeMatteis serves a mix of public-sector and private-sector clients, with the largest disclosed engagements including the NYC School Construction Authority, the Port Authority of New York & New Jersey, the NYC Department of Sanitation, St. John's University, NYU Langone, St. Francis Hospital, MetLife, and the U.S. Department of State. Revenue is generated through project-based construction contracts, real estate development fees and long-term property holdings, recurring third-party property management fees (R/Y Management), and airport concession/lease income (DMAL). Geographic reach is concentrated in the New York metropolitan area, with additional development activity in Virginia, Georgia, and Florida.

Name

DeMatteis Organization

Legal name

The DeMatteis Organization

Website

https://dematteisorg.com

Company type

Private

Founded year

1918

Operating status

Operating

Headcount range

101–250 employees

Short description

DeMatteis Organization is a 100+ year old, third-generation family-owned construction, real estate development, and property management firm headquartered in Elmont, NY, serving public agencies and private developers across the New York metropolitan area.

Ownership category

akta.pro rank

Product category

Construction and Real Estate Development Services

NAICS

New Housing For-Sale Builders (236117), Nonresidential Building Construction (2362), Land Subdivision (23721), Real Estate Property Managers (53131)

SIC

Operative Builders (1531), General Bldg Contractors - Nonresidential Bldgs (1540), General Bldg Contractors - Residential Bldgs (1520), Land Subdividers & Developers (No Cemeteries) (6552)

akta.pro primary industry

Residential General Contracting (New Build) (IMAFAAAB)

akta.pro secondary industries

Affordable & Subsidized Housing Property Management (LIHTC, Section 8) (BPAJAFAD), Residential Land Development & Subdivision Homebuilding (Build-to-Sell Communities) (IMAFABAL)

Keywords

• Commercial construction services
• Real estate development
• Design-build construction
• Property management services
• Construction management

Headquarters

HQ city

Elmont

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Infrastructure, Marketing or Sales, Technology or R&D

Revenue model

1. Construction Services: Leon D. DeMatteis Construction Corp. constructs all DeMatteis-sponsored projects, working with subcontractors to ensure milestones are met. Revenue generated through construction contracts for both public and private sector projects.
2. Real Estate Development: The company develops residential (middle income and luxury housing) and commercial office properties as owner and developer. Revenue from development fees, property sales, and long-term holdings.
3. Property Management: R/Y Management Co. manages over 10,000 townhouses, rental apartments, cooperatives and condominiums for DeMatteis affiliates and third-party owners, generating recurring management fees.
4. Airport Operations: DM Airport, LTD. operates Morristown Municipal Airport under a 99-year lease/operating agreement, responsible for all facets of the Airport's operation, management, and development.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

The DeMatteis Organization delivers integrated construction, real estate development, and property management services across the New York metropolitan area. Leon D. DeMatteis Construction Corp. (LDDCC) serves as the construction affiliate providing construction management, design-build, and general contracting for public and private sector projects. R/Y Management Co. provides property management for over 10,000 residential units, and DM Airport, LTD. operates the Morristown Municipal Airport under a 99-year lease.

Product overview

The DeMatteis Organization is a third-generation family-owned group of construction and real estate development companies operating as a fully integrated, full-service enterprise. The company is organized around its core construction and development affiliates, including Leon D. DeMatteis Construction Corp. (LDDCC) as the construction arm, along with real estate development services. Supporting operations include R/Y Management Co. for property management of over 10,000 residential units, and DM Airport, LTD. for airport operations at Morristown Municipal Airport. The company provides services across the full spectrum of construction and real estate development through Construction Management, Design Build (DBIA-certified), and Development, serving both private and public sectors in the New York metropolitan area.

Differentiator

Problem solved

Functional benefit

Products and services

• Construction Services (Leon D. DeMatteis Construction Corp.)
• Construction Management Services Construction management services providing precise budget estimates and reliable project schedules, delivered from an owner/developer perspective with LEED certified personnel for green project requirements, for public and private sector clients.
• Design-Build Services Design-build delivery services following Design-Build Institute of America (DBIA) guiding principles, with in-house registered architects and engineers participating in pre-construction phases and DBIA-certified employees working on all aspects of the design-build process including contract negotiations.
• Real Estate Development Real estate development services for middle-income and luxury housing and office properties, as owner and developer, including Public-Private Partnership (P3) development initiatives, with over 3 million square feet developed across the New York metropolitan area, Virginia, Georgia, and Florida.
• Property Management (R/Y Management Co., Inc.) Property management services delivered by R/Y Management Co., Inc., a premier full-service property management company managing over 10,000 townhouses, rental apartments, cooperatives, and condominiums in the New York metropolitan area (including affordable residential units) for both DeMatteis affiliates and third-party owners.
• Airport Operations (DM Airport, LTD. / DMAL) Airport operations delivered by DM Airport, LTD. (DMAL) under a 99-year lease and operating agreement for Morristown Municipal Airport, responsible for all facets of the airport's operation, management, and development, with over 30 years of operation.

Quantifiable outcome

• First Net Zero Energy School in Northeast U.S. - P.S. 62, 68,068 SF
• +3 more outcomes

Named customers9 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Six partnerships are on record, tiered core and minor.

• R/Y Management Co., Inc.coreStrategic or Co-development PartnerAn affiliate of The DeMatteis Organization, R/Y Management Co., Inc. is one of the premier management companies in the New York metropolitan area. As a privately held, full service property management company, R/Y manages over 10,000 townhouses, rental apartments, cooperatives and condominiums.
• DM Airport, LTD. (DMAL)coreStrategic or Co-development PartnerA wholly owned affiliate that has operated the Morristown Municipal Airport for over thirty years. Under a unique ninety nine year lease/operating agreement, DMAL is responsible for all facets of the Airport's operation, management, and development.
• AGCNYS (Associated General Contractors of New York State)minorOthersIndustry association membership providing networking and advocacy resources.
• NYBC (New York Building Congress)minorOthersIndustry association membership supporting the building and real estate industry in New York.
• NY BCA (New York Building Contractors Association)minorOthersIndustry association membership for building contractors in New York.
• USGBC LI (U.S. Green Building Council Long Island Chapter)minorOthersUSGBC Long Island Chapter membership supporting sustainable building practices. Matthew Palladino serves on the board of directors.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Gilbane Building Company: Family-influenced, multi-generation U.S. general contractor with deep public-sector, education, and healthcare portfolios. Closely comparable to DeMatteis in terms of private family ownership, integrated development/construction, and emphasis on institutional clients.
• Skanska USA: International GC with a strong NYC office and a portfolio that overlaps with DeMatteis in healthcare, education, and government projects. Similar design-build, sustainable-construction credentials and ENR Top-tier ranking make it a directly comparable peer in size and capability.
• Plaza Construction: NYC-based general contractor focused on luxury residential, hospitality, and commercial development. Comparable to DeMatteis's residential and commercial development work with private developers across the New York metro.
• Hunter Roberts Construction Group: NYC-focused mid-sized GC specializing in commercial, residential, healthcare, and educational projects. Directly competes with DeMatteis for similar private developer and institutional clients in the New York metropolitan area at a comparable scale.
• Structure Tone: NYC-based commercial/interior general contractor with strong relationships to private developers and corporate clients. Comparable to DeMatteis's private-sector developer segment (Olshan, Cord Meyer, Albanese) and at similar scale in the New York market.
• Tishman Construction (AECOM Tishman): An iconic NYC-based general contractor known for major commercial, institutional, and government projects. Shares the same customer base (Port Authority, state agencies, healthcare systems) and design-build delivery model as DeMatteis, with comparable expertise in NYC public-sector work.
• Cauldwell Wingate Company: NYC-based general contractor with a long history serving public-sector and institutional clients, particularly NYC Housing Authority and city agencies. Directly comparable to DeMatteis in NYC public-sector general contracting and at comparable mid-tier scale.
• Turner Construction Company: One of the largest general contractors in the U.S. with a major NYC presence serving public agencies, healthcare, education, and commercial clients. Directly comparable to DeMatteis in serving NYC public-sector clients (SCA, Port Authority, state agencies) and offering design-build and construction management services, though at materially larger scale.

Broad incumbents

• Lendlease US: Global construction and development group with a significant NYC presence across commercial, residential, and mixed-use projects. Overlaps with DeMatteis in large-scale development and public/private partnerships, but operates at a much broader geographic and capability scale.

Emerging players

• The Albanese Organization: Long-time New York-area residential and mixed-use developer that works with DeMatteis as a development partner. Comparable vertical-integration pattern (development + property management) with significant overlap in luxury and middle-income housing in the NY metro.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/leon-d-dematteis-constr-corp/jobs

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about DeMatteis Organization