What Interstate Electrical Services Corp. does

Interstate Electrical Services Corporation is a privately held, family-owned electrical construction and services contractor founded in 1966 and headquartered in North Billerica, Massachusetts. It is the largest privately held electrical services company in greater New England, operating from eight offices across all six New England states with a workforce of more than 750 professionals and a fleet of more than 250 vehicles. Its technology stack is anchored by a 100,000 sq. ft. UL-certified prefabrication Operations Center in Tewksbury, Massachusetts, complemented by 3D BIM/VDC design on Revit, Trimble robotic laser positioning, point-cloud scanning, drone surveys, AR/VR reviews, thermal diagnostic imaging, and AI-assisted project planning — capabilities used to prefab power panels, in-wall outlets, ceiling utility panels, raceways, and lighting control assemblies for just-in-time delivery to job sites.

The company generates revenue on a project-based, quote-driven professional services model, with no publicly disclosed pricing tiers. Primary service lines include electrical construction and design-build engineering, 24/7 emergency service dispatch, building automation and process controls, fire alarm systems (UL certified), network and telecom systems, arc flash hazard analysis, and an expanding alternative energy practice covering EV charging, solar, wind, and hydro generation. Customer verticals span commercial/industrial, healthcare, life sciences, education, multi-unit residential, corporate, and municipal — with named enterprise clients such as Maine Medical Center ($59M project), Elliot Hospital, Endicott College, BXP, and the City of Meriden, CT.

Interstate's go-to-market is an enterprise field-sales motion with direct engagement of commercial customers, supported by referral and repeat business from general contractors and institutional owners. Distribution is concentrated regionally across Massachusetts, Connecticut, New Hampshire, Rhode Island, Maine, and Vermont; the company recently expanded its footprint via the December 2024 acquisition of Glynn Electric, which added more than 250 employees and capability in fire alarm, integrated security, telecom/data networking, and 24/7 emergency response across MA, RI, and NH. Ownership remains under multi-generational family control with Jim Alibrandi as President since 1996; the firm has no external private equity or public-market backing.

Name

Interstate Electrical Services Corp.

Legal name

Interstate Electrical Services Corporation

Website

https://iesc1.com

Company type

Private

Founded year

1966

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Interstate Electrical Services Corporation is the largest privately held electrical services company in greater New England, providing design-build electrical construction, UL-certified prefabrication, building automation, and 24/7 emergency services to commercial, healthcare, life-science, education, and industrial clients across all six New England states.

Ownership category

akta.pro rank

Product category

Electrical Construction Services

NAICS

Electrical Contractors and Other Wiring Installation Contractors (23821), Building Equipment Contractors (2382)

SIC

Electrical Work (1731)

akta.pro primary industry

Electrical Contracting & Wiring (IMAFALAA)

akta.pro secondary industries

Electrical Contracting (Commercial/Industrial) (IMAIABAC), Energy Services (Retrofits/Commissioning/Testing & Balancing) (IMAIABAI), Electrical Permitting, Inspection Preparation & Compliance Services (HSAOADAL)

Keywords

• Electrical construction services
• Commercial electrical contracting
• Electrical design build
• Electrical prefabrication
• Building automation systems

Headquarters

HQ city

North Billerica

HQ country

United States

HQ region

North America

Offices8 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Electrical Construction & Installation Services: Providing electrical installation, design-build engineering, and an array of electrical services for commercial customers across New England. Services are project-based, ranging from new construction to renovation and maintenance, delivered through a team of over 750 skilled professionals.
2. 24/7 Emergency Electrical Service: Round-the-clock emergency service dispatch providing trained service technicians for commercial facilities. With strategically located offices and a vast fleet throughout New England, technicians respond to emergency electrical situations 24/7.
3. Design-Build & Assist: Integrated design-build approach that brings owners, general contractors, and expert teams together from project inception, optimizing design, controlling costs, and managing the complete project lifecycle from concept to completion.
4. Building Automation & Process Controls: Specialized services for sensitive building automation and process control systems including process instrumentation, commissioning support, card access, fume hood controls, and industrial controls for diverse facility types.
5. Fire Alarm Systems (UL Certified): UL certified fire alarm services including new system installation, UL certified testing, alarm system maintenance, 24/7 emergency repair, and alarm system upgrades.
6. Network / Telecom Systems: Full range of telecom and network services including copper and fiber optic cabling, design, implementation, and maintenance, delivered by certified technicians.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

Interstate Electrical Services Corporation delivers commercial and industrial electrical construction services across New England, including new installation, design-build engineering, renovation, and 24/7 emergency service. A core differentiator is the company's 100,000 sq. ft. UL-certified Prefabrication Operations Center in Tewksbury, MA, which pre-assembles UL-stamped electrical components for just-in-time delivery to job sites. Services are supported by advanced 3D BIM/VDC, AI-powered planning, robotic laser positioning, drone surveys, and lean construction methodologies, with sector-specific offerings for healthcare, life science, industrial, corporate, education, multi-unit residential, and alternative energy customers.

Product overview

Interstate Electrical Services Corporation operates as an electrical services contractor offering a comprehensive portfolio of services centered around electrical installation, design-build engineering, and specialized electrical services. The core offerings include 24/7 Emergency Service, Arc Flash Hazard Analysis, Building Automation & Process Controls, Design Build & Assist, Fire Alarm Systems, Network Systems, and Alternative Energy Solutions. A key differentiator is the company's UL-certified 100,000 sq. ft. Prefabrication Operations Center in Tewksbury, MA, which enables pre-assembly of electrical components for just-in-time delivery. The company also operates Glynn Electric as an acquired division. Services span multiple sectors including Healthcare, Life Science, Industrial, Corporate, Multi-Unit Residential, Schools & Universities, and Alternative Energy. The company additionally offers apprenticeship programs for electrical and assembler training across all six New England states.

Differentiator

Problem solved

Functional benefit

Brands

• Glynn Electric: A division of Interstate Electrical Services providing advanced electrical services including 24/7 emergency response, electrical construction, fire alarm systems, integrated security, telecom/data networking, and electrical maintenance across Massachusetts, Rhode Island, and New Hampshire.

Products and services

• 24/7 Emergency Service Round-the-clock emergency electrical services with strategically located offices throughout New England and a vast fleet of fully stocked vehicles, ensuring help arrives within two hours anywhere in the region. Targeted at commercial facilities requiring immediate response to electrical failures or hazards.
• Arc Flash Hazard Analysis Comprehensive electrical engineering service that maps and documents entire electrical systems, including site audits, risk analysis, arc flash warning label development, and remedial awareness training. Delivered by in-house electrical engineers working with electricians and safety personnel for commercial customers with safety and compliance requirements.
• Building Automation & Process Controls Installation and maintenance of sensitive building automation and process control systems, including process instrumentation and verification, commissioning support, card access, fume hood controls, and industrial controls. Targeted at commercial facilities, laboratories, healthcare, and industrial environments needing specialized controls expertise.
• Design Build & Assist Integrated design-build electrical construction approach using advanced 3D design, BIM, VDC, and AI algorithms alongside licensed electrical engineers with PE credentials across all six New England states. Includes drone surveys and immersive 3D/AR/VR reviews to optimize design, control costs, and manage projects from concept to completion for owners and general contractors.
• Fire Alarm Systems UL Certified fire alarm installation, maintenance, and testing services including new system installation, alarm system maintenance, 24/7 emergency repair, and system upgrades. Targeted at commercial facilities requiring code-compliant life safety systems.
• Network Systems Full range of telecom and network services including copper and fiber optic cabling, design, implementation, and maintenance, delivered by certified technicians. For commercial facilities requiring structured cabling and network infrastructure.
• Alternative Energy Solutions Alternative energy project delivery including EV charger installation, solar, wind, and hydro powered generation systems, in partnership with leading integrators and suppliers throughout New England. For municipalities, commercial customers, and developers pursuing renewable energy and EV infrastructure.
• Thermal Diagnostic Imaging Infrared scanning and thermal imaging services for electrical systems to identify hot spots, loose connections, and potential failures using thermal scanner technology, performed by licensed electricians and thermographers. Supports predictive maintenance programs for commercial and industrial customers.
• Electrical Prefabrication UL-certified prefabrication services at the company's 100,000 sq. ft. Operations Center in Tewksbury, Massachusetts, pre-assembling electrical components including power panels, in-wall outlets, switches, ceiling utility panels (CUPs), surface mounted raceways, and prefabricated lighting control systems with just-in-time delivery to job sites. For general contractors and project owners seeking reduced field labor, faster install times, and improved quality.
• Healthcare Electrical Services Electrical installation and maintenance services for hospitals and healthcare facilities, ensuring critical electrical systems support life-saving operations with precision, reliability, and code compliance. Targeted at hospitals, health systems, and medical office building developers.
• Life Science Electrical Services Precision electrical engineering, construction, maintenance, and services for life science facilities including research labs, cleanrooms, and pharmaceutical manufacturing plants requiring 16–20 watts per square foot and specialized power systems (UPS, emergency generators). For biotech, pharmaceutical, and research organizations with strict compliance and accuracy requirements.
• Industrial Electrical Services Comprehensive electrical solutions for industrial environments including manufacturing, food processing, and wastewater treatment facilities with specialized knowledge, process controls integration, and safety protocols. For plant operators with high power demands and hazardous settings.
• Corporate Electrical Services Electrical services for corporate environments including new construction, large-scale renovation, and tenant fit-out projects creating functional, wellness-enhancing, and aesthetically pleasing workspaces. For commercial real estate owners, developers, and corporate tenants.
• Schools & Universities Electrical Services Electrical services for educational institutions including new construction, large-scale renovation, student housing, recreation facilities, classrooms, and lab spaces. For K-12 schools, colleges, and universities needing complex campus systems, EV charging integration, HVAC controls, and life safety.
• Multi-Unit Residential Electrical Services Electrical services for multi-unit residential projects from residential complexes to mixed-use downtown buildings, utilizing prefabrication capabilities for adaptability to scope and schedule changes. For residential developers and mixed-use property owners requiring substantial planning and coordination.

Quantifiable outcome

• 50% of electrical content for Maine Medical Center project was pre-built at Interstate's operations center and delivered just-in-time, significantly reducing on-site labor and waste.
• +4 more outcomes

Named customers5 records

Segments8 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Partnerships

One partnership is on record.

• Glynn ElectriccoreStrategic or Co-development Partner · 30 December 2024On December 30th, Interstate Electrical Services acquired Glynn Electric, a company that provided advanced electrical services for over 30 years with a reputation for quality and reliability. Glynn Electric maintained over 250 employees delivering 24/7 emergency response, electrical construction, fire alarm systems, integrated security, telecom/data networking, and electrical maintenance to customers across Massachusetts, Rhode Island, and New Hampshire. The acquisition expanded Interstate's workforce to 750+ employees, fleet to 250+ vehicles, and extended service coverage across all six New England states.

Scale indicators9 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• IES Holdings: IES Holdings is a publicly traded electrical and mechanical contractor providing commercial and industrial installation, prefab, and field services across the U.S. It is the most direct public comparable to Interstate given its electrical contracting focus, prefab operations, and commercial/industrial customer mix.
• Faith Technologies: Faith Technologies is a privately held electrical and specialty systems contractor serving commercial, industrial, and healthcare customers with significant prefab capabilities and a multi-state footprint. Its scale, prefab focus, and customer mix closely parallel Interstate's model.
• Rosendin Electric: Rosendin is one of the largest privately held electrical contractors in the U.S., with operations across the West Coast, Southwest, and Texas, serving commercial, data center, renewable energy, and healthcare markets. Comparable to Interstate as a large, privately held, prefab-enabled electrical contractor with similar vertical specialization.
• Cupertino Electric: Cupertino Electric is a privately held electrical engineering and construction firm with deep expertise in data centers, renewable energy, and commercial construction across the Western U.S. Its technical sophistication, design-build approach, and data center focus align closely with Interstate's high-end commercial capabilities.
• Helix Electric: Helix Electric is a privately held electrical contractor specializing in commercial, industrial, and renewable energy projects with offices across the Western and Southwestern U.S. Its scale and service mix make it a strong private-side comparable to Interstate.
• MMR Group: MMR Group is a privately held electrical and instrumentation contractor serving commercial, industrial, and power infrastructure markets across the U.S. Its industrial/process controls expertise and multi-state footprint parallel Interstate's building automation and process controls capabilities.
• Power Design: Power Design is one of the largest privately held electrical contractors in the U.S., specializing in multifamily residential and commercial construction with a national prefab model. Its prefab-driven, multi-unit residential focus overlaps with Interstate's multi-unit residential segment.

Broad incumbents

• EMCOR Group: EMCOR Group is the largest publicly traded electrical and mechanical construction services firm in the U.S., with national and international operations spanning commercial, industrial, utility, and institutional end markets. It is a broad incumbent competing with Interstate on larger commercial, healthcare, and data center projects but operating far beyond New England.

Regional players

• Hunt Electric: Hunt Electric is a privately held electrical contractor serving commercial, industrial, and healthcare customers primarily in the Upper Midwest. As a similarly scaled regional player with comparable vertical mix, it provides a relevant benchmark for Interstate's regional positioning.
• ERMCO: ERMCO is a privately held regional electrical and systems contractor serving commercial, healthcare, and institutional customers primarily in the Midwest. Its scale, vertical mix, and design-build approach make it a relevant regional comparable to Interstate's New England footprint.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks1 record

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/interstate-electrical-services-corp.

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries1 record

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 Interstate Electrical Services Corp.