Sullivan & McLaughlin

What Sullivan & McLaughlin does

Sullivan & McLaughlin Companies, Inc. (d/b/a SullyMac) is New England's largest single-source electrical and technologies contracting company, headquartered in Boston, Massachusetts, with offices in Warwick, Rhode Island and a 35,000-square-foot prefabrication and shipping facility in Stoughton, Massachusetts. Founded circa 1970 by Bill 'Sully' Sullivan and John 'Mac' McLaughlin, the firm remains second-generation family-owned and now employs more than 500 professionals, primarily through IBEW locals 103, 223, 99, 96, and 7, executing roughly one million man-hours of work per year. Operations are organized in two divisions — the Electrical Construction Division and the Customer Solutions Division — and span eight product lines: electrical construction, structured cabling, electrical testing, control systems, network engineering/technologies (routing, switching, wireless, IoT), security integration (access control, video surveillance, intercom), fire alarm, and 24/7 electrical service/maintenance. Supporting capabilities include a 35,000 sq ft prefab shop (est. 2014), in-house BIM/CAD drafting on AutoCAD MEP/Navisworks/Bluebeam/Revit with Trimble Robotic Total Station field layout, and prefab-driven quality control with full "as-built" documentation. Revenue is generated under project-based construction contracts (fixed-price and T&M, with scope ranging from small service calls to hundreds-of-millions-of-dollars installations), supplemented by recurring 24/7 service and maintenance contracts at premiere commercial properties and direct-bill Massachusetts state procurement under contracts FAC64, ITC54, and ITT50. Customers span healthcare (Brigham & Women's, Mass General, Boston Medical, Spaulding), higher education (Harvard, MIT), commercial real estate (Amazon, Reebok, Wynn Boston Harbor), financial/legal (Santander, Goulston & Storrs), media (Boston Globe), transportation (Massport/Logan, American Airlines, Emirates), sports (Fenway Park), and government, with the deepest moat in mission-critical healthcare, research, and 24/7 commercial environments.

Name

Sullivan & McLaughlin

Legal name

Sullivan & McLaughlin Companies, Inc.

Website

https://sullymac.com

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

251–500 employees

Short description

Sullivan & McLaughlin is a Boston-headquartered, family-owned electrical and technologies contractor serving New England with 500+ unionized professionals, delivering electrical construction, structured cabling, building automation, security, fire alarm, and 24/7 service across healthcare, higher education, commercial, transportation, and government clients.

Ownership category

akta.pro rank

Product category

Electrical Contracting Services

NAICS

Security Systems Services (56162), Electronic and Precision Equipment Repair and Maintenance (8112), Professional, Scientific, and Technical Services (541)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540)

akta.pro primary industry

Low-Voltage & Security Systems Contracting (Access Control, CCTV, Intrusion) (IMAFALAF)

akta.pro secondary industry

Fire Protection Systems Contracting (Sprinklers, Alarms, Suppression) (IMAFALAD)

Keywords

• Electrical contracting services
• Structured cabling installation
• Building automation controls
• Fire alarm systems
• Electrical testing services

Headquarters

HQ city

Boston

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Project-Based Electrical Construction Services: Revenue generated through fixed-price and time-and-materials contracts for electrical construction projects across healthcare, commercial, residential, education, government, transportation, science & technology, and power generation sectors. Projects range from small service calls to major construction projects worth hundreds of millions of dollars.
2. Ongoing Maintenance and Service Contracts: 24-hour service coverage and service electricians providing maintenance, emergency repair, upgrades and retrofits, energy saving options, proactive prevention, and troubleshooting services. Revenue from state contracts (FAC64, ITC54, ITT50) enables direct procurement by government entities.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels3 records

Core offering

Sullivan & McLaughlin is a B2B electrical and technologies contracting company that designs, installs, services, and tests commercial electrical, structured cabling, network/IoT, building automation, security, and fire alarm systems for institutional, commercial, healthcare, education, government, transportation, and power-generation clients in New England. It operates two divisions — the Electrical Construction Division and the Customer Solutions Division — backed by a 35,000 sq ft prefabrication shop, a BIM/CAD/RTS design group, and 24/7 service coverage across Massachusetts, Rhode Island, Southern New Hampshire, and Southern Maine.

Product overview

Sullivan & McLaughlin (SullyMac) is New England's largest single-source electrical and technologies contracting company, operating two main divisions: the Electrical Construction Division and the Customer Solutions Division (CSD). The company offers a portfolio of interconnected service offerings: Electrical Construction (power distribution, lighting, site work) as the foundational service, complemented by Structured Cabling for voice/data/video infrastructure, Electrical Testing for power system maintenance, and Control Systems for building automation. The Technologies/Network Engineering group provides network, wireless, and IoT services that integrate with the cabling and control systems. Security Integration and Fire Alarm services operate as specialized verticals. Supporting these core offerings are Pre-Fabrication Services (35,000 sq ft shop for off-site assembly), BIM/CAD/RTS design services using AutoCAD MEP, Navisworks, Revit, and Trimble equipment, and Smart Building/IoT solutions for connected buildings. The company also holds Massachusetts state contracts (FAC64, ITC54, ITT50) enabling direct engagement with government agencies. All services are delivered by a workforce of 500+ professionals with 24-hour service coverage across Massachusetts, Rhode Island, Southern New Hampshire, and Southern Maine.

Differentiator

Problem solved

Functional benefit

Products and services

• Electrical Construction Comprehensive electrical construction services including power distribution systems, lighting installations, site work, utility work, and coordination with pre-fabrication capabilities for healthcare, commercial, residential, education, and other New England customers.
• Structured Cabling Design, installation, and servicing of structured cabling systems including voice, data, video, copper and fiber backbone, distributed antenna systems (DAS), data center cabling, outside plant cabling, paging systems, and sound masking systems.
• Electrical Testing Critical power system testing services including infrared electrical inspections, arc flash and coordination studies, circuit breaker testing, load bank testing, power quality studies, and preventative and acceptance testing to maintain electrical distribution efficiency.
• Control Systems Building automation and control systems for smart and connected buildings, including HVAC building automation, temperature controls, standalone systems, design-build, pneumatics, and maintenance and service for modern intelligent facilities.
• Technologies (Network Engineering) Comprehensive technology infrastructure services including network engineering (routing, switching, LAN, WAN, campus), wireless (WLAN, mesh, point-to-point, backhaul), IoT solutions (sensors, lighting, controls, traffic management, fleet management, analytics), and professional services for enterprise deployments.
• Security Integration Enterprise-wide security and management systems including credential management, asset tracking, video management systems, intrusion detection, access control, elevator control, optical turnstiles, and intercom and emergency phone systems for sensitive and secure facilities.
• Fire Alarm Life safety systems design, installation, monitoring, and maintenance including routine testing, central station monitoring, 24-hour service, installations, retrofits, barcode scanning, and online test reporting with vendor-agnostic advice.
• Electrical Services (24/7) 24-hour electrical service coverage across Massachusetts, Rhode Island, Southern New Hampshire, and Southern Maine, including maintenance, emergency repair, upgrades and retrofits, energy-saving options, proactive prevention, troubleshooting, and design-build services.
• Pre-Fabrication Services Off-site fabrication capabilities at a 35,000 square foot fabrication shop, including conduit rack assembly, threading (5" to 1/2" conduit), bending (5" to 1/2" EMT), MC cutting and coiling, temp testing, and a mock-up room for electric room builds to improve project schedules and quality control.
• BIM/CAD/RTS Services Advanced BIM and CAD design, planning, and project management using AutoCAD MEP, Navisworks, Bluebeam, and Revit, with in-house 3D drafting staff and Trimble Robotic Total Station for accurate field layout directly from CAD coordination files.

Quantifiable outcome

• Average 1 million man hours per year with Workers Compensation MOD Rate 15% better than industry average
• +2 more outcomes

Named customers18 records

Segments8 records

Ideal customer profiles7 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration59 records

Feature3 records

Partnerships

17 partnerships are on record, tiered minor and core.

• Fischbach & Moore (Affiliate)minorOthersAffiliate company operating under the same parent organization. Referenced on SullyMac website as a related company for electrical construction services.
• International Brotherhood of Electrical Workers (IBEW) - Local 103, 223, 99, 96, 7coreOthersProud member of IBEW with Local 103, Local 223, Local 99, Local 96, and Local 7. Union workforce provides trained electrical professionals through apprenticeship programs.
• CiscocoreTechnology or IntegrationTechnology partner for network engineering services including routing, switching, LAN, WAN, campus networks, and security solutions.
• Juniper NetworkscoreTechnology or IntegrationNetwork technology partner for enterprise routing, switching, and security solutions.
• Meraki (Cisco)coreTechnology or IntegrationWireless network solutions partner including WLAN, mesh, point-to-point, and backhaul technologies. Used for Wicked Free WiFi project and construction site WiFi solutions.
• Aruba NetworkscoreTechnology or IntegrationWireless network technology partner for WLAN and enterprise connectivity solutions.
• SiemenscoreTechnology or IntegrationBuilding automation and control systems partner for HVAC building automation, temperature control, and smart building solutions.
• Schneider ElectriccoreTechnology or IntegrationControl systems partner including power distribution, UPS, and building management solutions. Schneider Electric logo visible on project work.
• HoneywellcoreTechnology or IntegrationBuilding automation and control systems partner for HVAC controls and temperature management.
• TranecoreTechnology or IntegrationHVAC and building control systems partner for temperature control solutions.
• CorningcoreTechnology or IntegrationStructured cabling partner for fiber optic cabling systems and data center solutions.
• PanduitcoreTechnology or IntegrationStructured cabling and network infrastructure partner for copper and fiber solutions.
• UTC Lenel SystemscoreTechnology or IntegrationCertified Master Dealer for access control and security management systems.
• Axis CommunicationscoreTechnology or IntegrationNetwork camera partner for video surveillance systems. Used for CVS Health project with 300+ device replacements.
• Building PathwaysminorStrategic or Co-development PartnerBoston-based pre-apprentice program for underserved communities. SullyMac recognized as the largest employer of Building Pathways graduates. John McLaughlin serves on board.
• Cristo Rey BostonminorStrategic or Co-development PartnerCorporate Work Study Program partner. SullyMac contracts four students annually to perform entry level clerical jobs while learning about the corporate world.
• The Ballybreen-Drummaville TrustminorStrategic or Co-development PartnerMcLaughlin family-founded trust named after two family farms in Ireland. Enhances educational opportunities for underprivileged youth through scholarships.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Regional players

• R.G. Vanderweil Engineers: Boston-based MEP engineering and design firm with overlapping clients in healthcare, science & technology, and education — comparable to SullyMac's preconstruction/BIM and design-build capabilities on the same regional project set.
• Commodore Builders: Boston-based construction manager frequently engaging SullyMac as a preferred electrical subcontractor on regional projects — illustrates the local GC ecosystem SullyMac operates within and a regional competitive reference point.
• Lee Kennedy Company: Boston-area general contractor that works closely with SullyMac on healthcare, education, and commercial projects — a key regional channel partner and a comparable reference point for the Boston nonresidential construction market.

Direct peers

• Faith Technologies: Private electrical and specialty systems contractor with strong low-voltage, pre-fabrication, and smart-building capabilities — directly comparable to SullyMac on the Customer Solutions Division service mix.
• MYR Group: Public specialty contractor in electrical construction (commercial, industrial, transmission) with overlapping low-voltage and systems-integration capabilities — a direct comp for SullyMac's electrical construction and technologies work for commercial and institutional clients.
• IES Holdings: Public electrical and mechanical contractor providing commercial, industrial, and data center services across the U.S. — most directly comparable to SullyMac on electrical construction, low-voltage, and life-safety work for enterprise and institutional customers.
• Rosendin Electric: Large private employee-owned electrical contractor with significant low-voltage and prefabrication capabilities, competing for the same enterprise electrical and technology scopes as SullyMac.
• Helix Electric: Large private national electrical contractor with comparable low-voltage, structured cabling, and building technology capabilities, directly competing for the same enterprise and institutional projects SullyMac targets.

Broad incumbents

• EMCOR Group: Largest publicly-traded mechanical and electrical construction and facilities services company in the U.S., with a Fortune 500 footprint that competes with SullyMac for large New England electrical and low-voltage scopes as a much broader multi-trade platform.

Emerging players

• Triumph Construction: Regional electrical and low-voltage contractor with growing presence in the Boston market, increasingly competitive with SullyMac on commercial and institutional scopes at the mid-market level.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/teamsullymac
• LinkedInlinkedin.com/company/149185

Compliance11 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 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 Sullivan & McLaughlin