Penn Panel & Box

What Penn Panel & Box does

Penn Panel & Box Company is a fourth-generation, family-owned custom manufacturer of electrical power distribution equipment, founded in 1938 in Philadelphia and now headquartered in Collingdale, Pennsylvania. The company designs and builds UL-listed switchboards (up to 6000A and 200kAIC), panelboards (UL 67), termination boxes (UL 1773), metal-clad and metal-enclosed switchgear (ANSI C37.20.2 and C37.20.3), custom bus bars, and sheet metal enclosures for low-voltage (600V and below) and medium-voltage (2.4kV–38kV) applications. Manufacturing is concentrated at a single Collingdale facility equipped with AutoCAD design tools, CNC-controlled fabrication machinery, and a 12ft powdercoat finishing oven that supports both new-build production and retrofit work.

The company generates revenue through project-based custom quoting on switchgear, panels, enclosures, and retrofit kits, supplemented by a 24-hour emergency response service for damaged or burned-out equipment. Go-to-market is sales-led and relationship-driven, targeting electrical contractors, distributors, engineering/design firms, and institutional end users across the Northeast and Mid-Atlantic US. The customer base spans government (City of Philadelphia), healthcare (Friends Hospital), education (Delcastle Vo-Tech), food retail (SuperFresh), and industrial (Techneglass) end users, with direct project relationships to regional utilities including PECO Energy, PPL, PSE&G, FirstEnergy, and BGE. The business has remained privately held under continuous family ownership with no disclosed funding rounds, acquisitions, or public-market activity.

Name

Penn Panel & Box

Legal name

Penn Panel & Box Company

Website

https://pennpanel.com

Company type

Private

Founded year

1938

Operating status

Operating

Headcount range

11–50 employees

Short description

Penn Panel & Box Company is a fourth-generation, family-owned custom manufacturer of UL-listed electrical power distribution equipment — switchgear, panelboards, enclosures, and bus bars — serving contractors, utilities, and institutional end users across the Mid-Atlantic and Northeast US.

Ownership category

akta.pro rank

Product category

Custom Electrical Power Distribution Equipment

NAICS

Switchgear and Switchboard Apparatus Manufacturing (335313), Relay and Industrial Control Manufacturing (335314), Electrical Equipment Manufacturing (3353)

SIC

Switchgear & Switchboard Apparatus (3613), Electrical Industrial Apparatus (3620)

akta.pro primary industry

Industrial Control Panels & Enclosures (Panel Building, MCCs, Integration) (IMAGABAJ)

akta.pro secondary industries

Low-Voltage Switchboards & Panelboards (LV distribution panels, MCCs, switchboards) (IMAGAEAA), Industrial Control Cabinets & Power Distribution (Panels, Switchgear for Automation) (IMAHAHAK), Enclosures, Boxes & DIN-Rail Hardware (junction boxes, cabinets, panel enclosures, DIN rail, gland plates) (IMAGAEAH)

Keywords

• Custom electrical panels
• Power distribution equipment
• Switchgear manufacturing
• Electrical enclosures fabrication
• Bus bar fabrication

Headquarters

HQ city

Sharon Hill

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom Electrical Equipment Manufacturing: Design, build, and repair custom electric power equipment including switchgear, control panels, enclosures, substations and high voltage switches. Products are custom-designed for specific customer needs with pricing based on specifications.
2. Retrofit Equipment and Components: Replacement and upgrade services for existing equipment including retrofit circuit breakers, retrofit panelboards, and custom components designed to fit existing footprints
3. Emergency Parts and Services: 24-hour emergency response including metalwork fabrication, panelboard replacements, switch and fuse units (13,200V and 34,500V), and custom busbar replacement
4. Custom Sheet Metal Fabrication: Custom sheet metal fabrication services for control cabinets, panel trims, pull boxes, and other enclosures using various metals and finishing options including powder coating
5. Stock Components: Sale of stock components including power fuses (Cutler Hammer), potential transformer fuses, porcelain insulators, copper bus, epoxy compound insulation sheets, and miscellaneous switchboard components

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels5 records

Core offering

Penn Panel & Box Company is a custom manufacturer of electrical power distribution equipment. It designs, builds, and repairs low-voltage panelboards and switchboards, medium-voltage metal clad and metal enclosed switchgear, custom copper bus bars, termination boxes, utility service entrance and metering units, and custom sheet metal enclosures. It also produces retrofit components for existing equipment and operates a 24-hour emergency fabrication and replacement service.

Product overview

Penn Panel & Box Company is a designer and manufacturer of custom electrical power distribution equipment founded in 1938. The company operates a single unified product portfolio centered on custom electric power equipment, with two main voltage categories: Low Voltage (600V and below) products including Panelboards (UL 67), Switchboards (UL 891), Termination Boxes (UL 1773), and Custom Bus Bar; and Medium Voltage (2400V to 38kV) products including Metal Clad Switchgear (ANSI C37.20.2) and Metal Enclosed Switchgear (ANSI C37.20.3). Supporting offerings include Retrofit Circuit Breakers, Retrofit Panelboards, Utility Service Entrance & Metering Units, Custom Sheet Metal Fabrication, Stock Components, and 24-Hour Emergency Services. The company specializes in custom solutions designed specifically for customer needs with fast delivery and long-term commitment after the sale.

Differentiator

Problem solved

Functional benefit

Products and services

• Panelboards (UL 67) UL 67 listed panelboards with Siemens or Cutler Hammer circuit breakers, available as retrofit packages that install new panel interiors into existing backboxes. Sold to electrical contractors, distributors, and end users.
• Retrofit Panelboards Upgrades for outdated panelboards and switchboards, providing new interiors and fronts to upgrade panels without disturbing existing back boxes and conduits. Sold to electrical contractors and end users needing modernization without full replacement.
• Retrofit Circuit Breakers New circuit breakers including air circuit breakers, insulated case, or molded case breakers supplied with complete retrofit kits containing all required ancillary hardware. Sold for upgrading existing electrical systems.
• Switchboards (UL 891) UL listed switchboards up to 6000A and 200kAIC, with options including service entrance switchgear, automatic transfer systems, and various breaker configurations. Sold to electrical contractors and end users across commercial, industrial, and institutional facilities.
• Termination Boxes (UL 1773) Termination boxes rated 600V or less consisting of bus bars to accommodate incoming and outgoing conductors, available as freestanding or wall mounted units built to UL 1773 specifications.
• Custom Bus Bar Custom fabricated busbars using high conductivity copper handling amperages up to 6000A, with options including silver-plated copper and heat shrink or sleeve insulation. Available from prototype to low-volume production.
• Metal Clad Switchgear (ANSI C37.20.2) Medium voltage switchgear suitable for applications with higher fault duty, featuring drawout circuit breakers with vacuum interrupters and fully insulated compartmentalized bus, available up to 38kV.
• Metal Enclosed Switchgear (ANSI C37.20.3) Metal-enclosed interrupter switchgear for indoor and outdoor applications with nominal voltage rating of 2400V through 38kV, designed and built to specific application requirements in accordance with UL, ANSI, IEEE, NEMA, and NEC standards, with a UL listing mark affixed to each 5kV and 15kV section.
• Utility Service Entrance and Metering Units Service entrance and metering equipment designed to meet various local utility company requirements including PECO Energy, PPL, PSE&G, FirstEnergy (Met-Ed, JCP&L), and BGE. Sold to electrical contractors and end users with utility coordination needs.
• Custom Sheet Metal Fabrication Custom sheet metal fabrication services using AutoCAD design and CNC machinery for constructing enclosures from carbon steel, galvanized steel, stainless steel, and aluminum (16 gauge to 3/16 inch), with powder coat finishing. Sold to contractors and end users needing simple or complex enclosures.
• Stock Components Inventory of power fuses (Cutler Hammer), potential transformer fuses, porcelain and low-voltage insulators, copper bus bars, epoxy compound insulation sheets, and miscellaneous switchboard components. Sold to electrical contractors and distributors.
• 24-Hour Emergency Services 24/7 emergency response for metalwork fabrication, panelboard replacements, switch and fuse units (13,200V and 34,500V), and custom busbar replacement for burned or damaged equipment. Sold to electrical contractors and end users facing urgent equipment failures.

Quantifiable outcome

• Emergency panelboards produced and shipped within 24 hours
• +2 more outcomes

Named customers11 records

Segments7 records

Ideal customer profiles8 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators3 records

Recent moves7 records

Expansion highlights3 records

Market position

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 Penn Panel & Box