Carr & Duff

What Carr & Duff does

Carr & Duff is a specialty electrical construction contractor headquartered in Huntingdon Valley, Pennsylvania, founded in 1958 and operating as Carr & Duff, LLC. The company delivers a comprehensive portfolio of electrical construction services across low, medium, and high voltage systems, with specialized practices in transit electrification (automatic train control, catenary, DC power), substation construction up to 138 kV, overhead and underground transmission and distribution up to 69 kV/34 kV, solar array installation, and wireless communications infrastructure. It maintains four staffed regional offices in Huntingdon Valley, Philadelphia, Wilmington, and Cherry Hill to serve customers across the Tri-State area and East Coast.

The company services six primary customer segments — utilities, transportation, commercial and industrial, educational and institutional, healthcare and pharmaceutical, and telecommunications — through direct enterprise field sales and competitive bidding on public-sector projects. Its customer base includes SEPTA, Amtrak, the City of Philadelphia, Philadelphia International Airport, the Delaware River Port Authority, the Delaware River Joint Toll Bridge Commission, PennDOT, Children's Hospital of Philadelphia, the University of Pennsylvania, AT&T, and Parx Casino, among others. Approved-contractor status with PennDOT, NJDOT, DelDOT, and the City of Philadelphia constitutes a meaningful regulatory entry barrier.

Revenue is generated primarily through project-based construction contracts awarded via competitive bidding (one-time project licensing) alongside recurring maintenance, repair, inspection, and 24/7 emergency response work. Pricing is project-specific and quote-based; no tiered pricing is publicly disclosed. Since March 2022, the company has operated as a portfolio company of IMB Partners, a private equity firm specializing in utility and government services, with Gemspring Capital as minority co-investor and MidCap Financial providing senior debt; the founding Duff brothers (Bob, Eddie, and Jack) retained meaningful ownership. The company has collected multiple regional and national industry awards between 2023 and 2025, including GBCA Construction Excellence, NECA Penn-Del-Jersey, and Inc. Magazine Best in Business recognition.

Name

Carr & Duff

Legal name

Carr & Duff, LLC

Website

https://carrduff.com

Company type

Private

Founded year

1958

Operating status

Operating

Headcount range

251–500 employees

Short description

Carr & Duff is a 65-year-old specialty electrical construction contractor based in Huntingdon Valley, PA, delivering low to high voltage electrical, transit, substation, transmission, solar, and telecom infrastructure services to utilities, transportation agencies, and commercial, industrial, healthcare, and educational clients across the Mid-Atlantic and East Coast.

Ownership category

akta.pro rank

Product category

Electrical Construction Services

NAICS

Electrical Contractors and Other Wiring Installation Contractors (23821)

SIC

Electrical Work (1731), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Underground transmission & distribution cable EPC (civil + cable install) (EUADAKAB)

akta.pro secondary industries

Cable Installation & Construction Services (trenching, duct banks, HDD, pulling, cable laying) (EUADADAI), Underground Utility Duct Banks, Conduit & Vault Construction (IMAFAHAG)

Keywords

• Electrical construction services
• Utility infrastructure construction
• Substation construction services
• Transit electrical systems
• Commercial electrical contracting

Headquarters

HQ city

Huntingdon Valley

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Electrical Construction Services: Project-based electrical construction services including building electrical construction, highway/roadway systems, lighting systems, medium voltage distribution, overhead/underground distribution and transmission, substation construction, transit construction, and solar construction. Revenue generated through competitive bidding on public and private projects.
2. Maintenance, Repair & Inspection Services: Ongoing maintenance contracts and repair services for electrical systems including transformers, motor control centers, switchgears, and substations. Features 24/7/365 emergency response capability. Revenue from both contracted recurring maintenance and ad-hoc service calls.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Carr & Duff is a specialty electrical construction contractor providing low, medium, and high voltage electrical construction services for commercial, industrial, utility, transportation, healthcare, educational, and telecommunications customers. The company delivers end-to-end capabilities spanning utility service to final fixtures, including building electrical construction, substations up to 138 kV, transit/rail systems, overhead and underground transmission and distribution, solar installations, wireless communications, and 24/7 emergency maintenance and repair services.

Product overview

Carr & Duff is a specialty electrical construction service provider offering a comprehensive portfolio of construction and maintenance services. The company operates as a single integrated service offering rather than a platform-plus-modules architecture. Core services include Building Electrical Construction (the backbone division handling utility service to final fixtures), complemented by utility-focused services (Overhead & Underground Distribution/Transmission, Medium Voltage Distribution, Substation Construction, Solar Construction), infrastructure services (Highway & Roadway Construction, Transit Construction, Wireless Communications), and specialized technical services (Lighting Systems, Low Voltage & Specialty Systems, Maintenance, Repair & Inspection). These services are offered to utilities, transportation providers, commercial, industrial, educational, and medical facilities throughout the Mid-Atlantic region and along the East Coast.

Differentiator

Problem solved

Functional benefit

Products and services

• Building Electrical Construction
• Highway & Roadway Construction
• Lighting Systems
• Low Voltage & Specialty Systems
• Maintenance, Repair & Inspection
• Medium Voltage Distribution Systems
• Overhead & Underground Distribution
• Overhead & Underground Transmission
• Solar Construction
• Substation Construction
• Transit Construction
• Wireless Communications / Telecommunications

Named customers14 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• LaFata Contract ServicesminorStrategic or Co-development Partner · 15 March 2022LaFata Contract Services is a project and construction management company that brings critical experience in the Philadelphia utility services market through its partnership with IMB Partners. While not directly partnered with Carr & Duff, this relationship provides IMB Partners with valuable operational expertise that benefits the portfolio company.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• EMCOR Group: Public diversified electrical and mechanical construction firm with building, industrial, and utility service lines. Comparable on the building electrical construction and low-voltage specialty systems work Carr & Duff performs for healthcare, education, and institutional clients.
• MasTec: Public infrastructure construction firm with substantial electrical T&D, communications (5G/wireless), and renewable energy (solar) service lines. Direct overlap with Carr & Duff's transit construction, wireless/DAS, and solar construction capabilities, though at vastly larger scale.
• Quanta Services: The largest pure-play electric power infrastructure services firm in North America, providing utility T&D, substation, and telecom construction at national scale. Carr & Duff is effectively a regional microcosm of Quanta's go-to-market, especially via Quanta's PAR Electrical Contractors subsidiary.
• MYR Group: Public electrical construction services firm specializing in T&D, commercial, and industrial work through subsidiaries including The L.E. Myers Co. and Sturgeon Electric. Closest direct comparable on the public-market side for revenue mix, bonding strategy, and high-voltage capability.

Direct peers

• Henkels & McCoy: Mid-Atlantic-headquartered infrastructure services contractor with overlapping capabilities in T&D, gas distribution, and communications construction. Carr & Duff competes for similar utility, transportation, and DOT work along the East Coast with comparable bonding and regional depth.
• PAR Electrical Contractors: Quanta-owned electrical contractor focused exclusively on overhead and underground electrical T&D construction across multiple regions. Direct functional peer for Carr & Duff's distribution and transmission service lines and a likely competitor on Tri-State utility bids.
• The Newtron Group: Private specialty electrical contractor focused on utility transmission, distribution, and substation projects across the Gulf Coast and broader U.S. Head-to-head comparable on high-voltage construction services up through 138 kV class work.
• Miller Pipeline: Utility infrastructure contractor (now part of IMB Partners, the same PE sponsor backing Carr & Duff) providing gas, electric, telecom, and water construction. Operationally and structurally analogous: PE-backed infrastructure services firm in adjacent utility verticals.
• Faith Technologies: Mid-sized private electrical contractor focused on utility, commercial, industrial, and renewable customers with similar specialty capabilities in substation and transmission work. PE-backed (private ownership has historically supported M&A-led growth) and operationally comparable in scale.

Regional players

• Irby Utilities: Utility distribution and electrical construction services firm with deep concentration in the Mid-South and Gulf regions. Comparable for utility-focused electrical contracting services but operates in a different geography than Carr & Duff's PA/NJ/DE base.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/885669
• Instagraminstagram.com/carr_and_duff_electric

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Funding overview

Funding rounds1 record

Investors1 record

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 Carr & Duff