D'Onofrio General Contractors

What D'Onofrio General Contractors does

D'Onofrio General Contractors Corp. is a Brooklyn, New York-based heavy construction company operating since 1991, though the D'Onofrio family's construction trade dates to the 1950s when founder Jerry Sr. ran a concrete masonry business. The company is family-owned and operated by brothers Jerry, John, and Vincent D'Onofrio, alongside Harry D'Onofrio and Vincent Leone, and maintains 11–50 employees. It is organized into five service divisions: heavy infrastructure construction (power substations and generation plant modernization), marine contracting and development (harbor structures along the East Coast supported by an owned fleet of marine equipment including barge-mounted cranes), specialty roofing and building restoration (delivered as a certified applicator of Momentive Performance Materials chemical roofing products and sealants), general construction, and engineering and architecture.

The business model is project-based construction services sold through direct procurement and competitive bidding to enterprise utility and government clients, primarily Consolidated Edison of New York, US Power Generating Co., PSEG, and National Grid plc. Geographic scope spans New York, New Jersey, Pennsylvania, and Connecticut. Revenue is earned through one-time project contracts (no recurring license or subscription model), and pricing is not publicly disclosed. The company has no external parent, no institutional funding rounds, and operates without AI/ML-based product capabilities — it is a traditional services firm whose differentiation rests on multi-generational family expertise, owned marine equipment, supplier certifications, and entrenched relationships with major Northeast utilities.

Name

D'Onofrio General Contractors

Legal name

D'Onofrio General Contractors Corp.

Website

https://donofrio.biz

Company type

Private

Founded year

1991

Operating status

Operating

Headcount range

11–50 employees

Short description

D'Onofrio General Contractors Corp. is a Brooklyn-based, family-owned heavy construction firm (founded 1991) delivering power substation, generation plant, marine, and specialty roofing services to enterprise utility and government clients across the Northeast US.

Ownership category

akta.pro rank

Product category

Heavy Civil and Infrastructure Construction Services

NAICS

Other Heavy and Civil Engineering Construction (237990), Nonresidential Building Construction (2362)

SIC

Heavy Construction Other Than Bldg Const - Contractors (1600), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Public Works General Contracting (IMAFAAAG)

akta.pro secondary industry

Self-Performing General Contractors (IMAFAAAI)

Keywords

• Heavy infrastructure construction
• Marine construction services
• Power substation construction
• Commercial roofing services
• General contracting services

Headquarters

HQ city

Brooklyn

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Heavy Infrastructure Construction: Project-based construction contracts for power substations, generation plant modernization, and utility infrastructure. Revenue is earned through competitive bidding and direct procurement with utilities and municipalities.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

D'Onofrio General Contractors Corp. is a Brooklyn-based heavy construction company providing project-based construction services to utilities, government agencies, and commercial clients. Its offerings include power substation design and construction, power generation plant modernization, marine and harbor structure construction, specialty commercial roofing and building restoration, and general construction across New York, New Jersey, Pennsylvania, and Connecticut.

Product overview

D'Onofrio General Contractors Corp. is a Brooklyn-based heavy construction company operating since 1991, offering a diversified portfolio of construction services organized into distinct divisions: Marine Contracting & Development (harbor structures along the East Coast with proprietary barge-mounted crane fleet), Heavy Infrastructure Construction (power generation plant modernization and power substations), Specialty Roofing & Building Restoration (certified applicator of Momentive Performance Materials roofing products and sealants), General Construction, and Engineering & Architecture. These divisions are each led by members of the executive management team and serve clients including Consolidated Edison, US Power Generating Co., PSEG, and National Grid plc across New York, New Jersey, Pennsylvania, and Connecticut.

Differentiator

Problem solved

Functional benefit

Products and services

• Marine Contracting & Development Construction of marine and harbor structures, ferry terminals, and waterfront projects along the East Coast, using D'Onofrio's own fleet of marine construction equipment including barge-mounted cranes. Targeted at government entities, port authorities, and utilities requiring marine infrastructure development.
• Substation Construction Design and construction of power substations and transmission stations for electric utilities, including notable engagements such as the Mott Haven Substation (Bronx, NY), Astor Substation (New York, NY), and Newtown Substation. Targeted at regional utilities executing grid modernization and expansion.
• Heavy Infrastructure Construction Heavy infrastructure construction services for utility clients, including modernization of power generation plants and other large-scale energy infrastructure projects. Targeted at electric utilities such as Consolidated Edison of New York, US Power Generating Co., PSEG, and National Grid plc.
• Specialty Roofing & Building Restoration Certified roofing applicator services using chemical roofing products and construction sealants from Momentive Performance Materials (formerly known in the construction industry as GE Toshiba Silicones in Asia and GE Bayer Silicones in Europe). Targets large commercial roofs in the Northeast US, including commercial property owners and facility managers.
• General Construction General contracting services covering various construction disciplines in New York, New Jersey, Pennsylvania, and Connecticut, supporting commercial and infrastructure clients across the Northeast US.
• Engineering & Architecture Engineering and architectural services supporting infrastructure and construction projects across D'Onofrio's heavy infrastructure, marine, roofing, and general construction engagements.

Named customers4 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

Feature1 record

Partnerships

One partnership is on record.

• Momentive Performance MaterialscoreStrategic or Co-development PartnerD'Onofrio General Contractors is a certified roofing applicator working with a line of chemical roofing products and construction sealants from Momentive Performance Materials (formerly known in the construction industry as GE Toshiba Silicones in Asia and GE Bayer Silicones in Europe). This certification enables the company to perform large commercial roofing projects in its region.

Scale indicators2 records

Recent moves5 records

Expansion highlights5 records

Market position

Strengths3 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 D'Onofrio General Contractors