Cannistraro

What Cannistraro does

Cannistraro (J.C. Cannistraro, LLC) is a private, family-owned mechanical construction firm founded in 1963 by John Cannistraro, Sr. and headquartered in Waltham, Massachusetts. The company self-performs HVAC, plumbing, and fire protection construction for commercial and institutional clients across Greater Boston and New England, supported by a 167,000+ square-foot in-house fabrication facility in Boston that produces prefabricated plumbing, HVAC pipe, HVAC sheet metal, and fire system assemblies. Cannistraro is recognized as Boston's largest mechanical construction firm, is ranked among the Top 50 mechanical contractors in the United States by ENR Magazine, and serves marquee healthcare (Massachusetts General Hospital, Brigham & Women's, Boston Children's, Dana Farber), life sciences (Amgen, Novartis, Vertex, Sanofi Genzyme, Broad Institute), higher education (Harvard, MIT, Boston University, Boston College, Tufts, Northeastern), commercial real estate (Boston Properties, Manulife), and government (Commonwealth of Massachusetts, correctional facilities) accounts.

The company's technology stack centers on Virtual Design and Construction (VDC/BIM), 3D laser scanning (capturing approximately 1 million data points per second), and a tablet-based real-time project management platform, all used to drive clash detection, as-built accuracy, and field-to-office synchronization. Cannistraro also operates a modular construction capability using lean manufacturing principles for mechanical rooms, ductwork, boiler infrastructure, piping, and fire protection assemblies, and holds the North American distribution rights for FireDos foam proportioners, supporting a higher-margin special-hazards fire protection offering.

Revenue is generated through project-based design-build construction contracts, recurring service and maintenance agreements (including a 24-hour emergency line with guaranteed two-hour response for contracted clients), and specialty fire protection distribution. Go-to-market is direct enterprise field sales with no public marketing funnel, targeting facility executives, property managers, developers, and institutional owners. The company operates a multi-state footprint with offices in Waltham (HQ), Boston (fabrication), Worcester (MA), Plainfield (CT), and Hooksett (NH), and is led by the second generation of the Cannistraro family: David G. Cannistraro (CEO), John C. Cannistraro, Jr. (President), and Joseph C. Cannistraro (CFO).

Name

Cannistraro

Legal name

J.C. Cannistraro, LLC

Website

https://cannistraro.com

Company type

Private

Founded year

1963

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Cannistraro is a private, family-owned mechanical contractor founded in 1963 and self-performing HVAC, plumbing, and fire protection design-build, fabrication, and 24-hour service for healthcare, life sciences, higher education, commercial, and government clients across New England from its 167,000+ sq. ft. fabrication facility.

Ownership category

akta.pro rank

Product category

Mechanical Construction Services

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (23822), Architectural, Engineering, and Related Services (5413)

akta.pro primary industry

Hard Services (MEP/HVAC, Electrical, Plumbing) (BPABAAAA)

akta.pro secondary industry

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

Keywords

• Mechanical construction services
• HVAC system installation
• Commercial plumbing services
• Fire protection systems
• Industrial mechanical contracting

Headquarters

HQ city

Watertown

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Mechanical Construction Services: Design-build mechanical construction for HVAC, plumbing, and fire protection systems. Projects range from complete system installations to emergency repairs. Revenue generated through project-based contracts for commercial and institutional clients.
2. Service & Maintenance Contracts: Ongoing service agreements with 24-hour emergency response and guaranteed two-hour technician response time. Preventative maintenance programs for HVAC, plumbing, and fire protection systems. Revenue recurring through annual service contracts.
3. Special Hazards Fire Protection: Design, installation, and maintenance of special hazards fire suppression systems including FireDos foam proportioners. North American FireDos distributor since 2019.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

Cannistraro is a self-performing mechanical construction contractor that designs, engineers, fabricates, installs, and services HVAC, plumbing, and fire protection systems for commercial and institutional clients. Its integrated offering covers preconstruction planning, virtual design and 3D laser scanning, modular fabrication at its 167,000+ sq. ft. facility, on-site installation, and recurring 24-hour service and preventative maintenance.

Product overview

Cannistraro is Boston's leading industrial mechanical contractor offering a comprehensive suite of mechanical construction solutions organized into three core service categories: Construction (HVAC Systems, Plumbing, Fire Protection Systems), Design Solutions (Preconstruction Services, Engineering, Virtual Design, 3D Laser Scanning, Technology Solutions, Fabrication, Modular Construction), and Service & Maintenance (24-Hour Emergency Service, Preventative Maintenance Programs, Utility Rebate Programs). The company operates an in-house fabrication facility (167,000+ sq ft) enabling self-performing solutions across plumbing fabrication, HVAC pipe fabrication, HVAC sheet metal fabrication, and fire system fabrication. Special hazards capabilities include FireDos foam proportioner systems (distributed since 2019), clean agent systems, waterless fire suppression, and early warning detection systems. The company serves diverse markets including healthcare (with notable partners like Massachusetts General Hospital, Brigham & Women's), life sciences (biotech and pharmaceutical facilities), education (Boston-area universities), commercial office, municipal government, multifamily residential, and mission-critical/utility operations.

Differentiator

Problem solved

Functional benefit

Products and services

• HVAC Systems Comprehensive commercial HVAC system engineering, installation, commissioning, and maintenance services including hospital-grade chillers, air handlers, high-efficiency boilers, and cogeneration plants for commercial and institutional clients.
• Plumbing Full-service commercial plumbing including complete project management, in-house fabrication, modular capabilities, and 24-hour emergency repair services for commercial and institutional facilities.
• Fire Protection Systems Design, fabrication, installation, and maintenance of commercial fire protection systems including pre-action, deluge, wet, and foam sprinkler systems for buildings of all sizes.
• Design Solutions Comprehensive preconstruction and design services including preconstruction planning, engineering, virtual design, 3D laser scanning, technology integration, fabrication, and modular construction for mechanical projects.
• Fabrication In-house fabrication capabilities with over 167,000 square foot facility producing plumbing, HVAC pipe, HVAC sheet metal, and fire system fabrication using lean manufacturing principles.
• Modular Construction Modular component system design, fabrication, and installation using lean manufacturing principles for mechanical rooms, HVAC ductwork, boiler infrastructure, piping systems, and fire protection.
• Special Hazards Fire Protection Advanced fire suppression systems for facilities requiring extra protection beyond conventional systems, including clean agent, dry chemical, CO2, waterless, inert gas, and early warning detection systems for sensitive environments.
• FireDos Foam Proportioner Systems High-efficiency fire protection systems using FireDos proportioners for precise foam suppressant delivery, distributed by Cannistraro in North America since 2019.
• Service & Maintenance 24-hour mechanical facility service solutions including preventative maintenance, utility rebates, fire system maintenance, and a personalized client portal for HVAC, plumbing, and fire protection infrastructure.
• 24-Hour Emergency Service Round-the-clock emergency repair services for HVAC, plumbing, and fire protection with guaranteed two-hour technician response time for contracted clients.
• Preventative Maintenance Programs Customized preventative maintenance programs for HVAC, plumbing, and fire systems covering heating, ventilation, air conditioning, plumbing infrastructure, and fire protection testing and inspection to extend equipment lifetime and minimize downtime.
• Healthcare Mechanical Infrastructure Medical gas piping systems, HEPA air filtration systems, modular headwall units, and commercial air filtration engineered with rigorous quality standards for hospitals, surgery centers, medical offices, and rehabilitation facilities.
• Cleanroom Infrastructure Complete mechanical infrastructure for cleanroom environments including HVAC, plumbing, gas piping, and fire protection for biotechnology companies, pharmaceutical firms, research laboratories, and diagnostic facilities.

Quantifiable outcome

• 48% energy reduction and $2.5 million annual savings for Hogan Regional and Wrentham Developmental Centers
• +3 more outcomes

Named customers29 records

Segments7 records

Ideal customer profiles5 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.

• FireDoscoreTechnology or Integration · 1 January 2019Cannistraro has been the North American distributor for FireDos since 2019. FireDos provides industry-leading foam proportioners for fire protection systems, offering reduced pressure loss (up to 25%), compatibility with all foam suppressants, and sturdy compact design. Cannistraro engineers, installs, and maintains FireDos proportioner-based fire protection and special hazards systems.

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• APi Group: APi Group is a global leader in safety, specialty, and industrial services with a strong fire protection and life safety segment. It overlaps with Cannistraro's fire protection, special hazards, and service offerings while operating at much larger scale.
• EMCOR Group: EMCOR is the largest publicly traded mechanical and electrical construction services firm in the U.S. It competes directly with Cannistraro on hospital, university, commercial, and government mechanical projects but operates at materially greater scale across multiple geographies.
• Comfort Systems USA: Comfort Systems USA is a leading national HVAC mechanical contractor providing installation, renovation, service, and maintenance. It directly parallels Cannistraro's HVAC, plumbing, and service-contract model but with broader geographic reach and public-market capital access.

Direct peers

• Limbach Holdings: Limbach is a specialty mechanical contractor providing HVAC, plumbing, and building controls across the U.S., with a strong owner-direct model and recurring service revenue. Closely comparable to Cannistraro in scope of services and self-perform delivery model.
• Southland Industries: Southland is a national mechanical contractor with integrated design, fabrication, and installation across HVAC, plumbing, and process piping. Its in-house fabrication and modular approach mirror Cannistraro's self-perform strategy.

Regional players

• Binsky & Snyder: Binsky & Snyder is a New Jersey-based mechanical contractor providing HVAC, plumbing, and process piping services to commercial and institutional clients in the Mid-Atlantic. Closely comparable service mix to Cannistraro but on a different regional footprint.
• MAC Construction & Excavation / R.F. MacDonald Co. R.F. MacDonald Co. is a California-based specialty mechanical contractor focused on industrial, institutional, and energy projects. Comparable mechanical construction scope to Cannistraro with a regional/west-coast orientation.
• Tustin Mechanical: Tustin Mechanical Services is a Florida-based mechanical contractor providing HVAC, plumbing, and medical gas services. Comparable in service mix and healthcare specialization but geographically separate from Cannistraro.
• Haynes Mechanical Systems: Haynes Mechanical is a regional mechanical contractor serving commercial and industrial clients across the western U.S. with HVAC, plumbing, and process piping. Comparable service offering to Cannistraro but on a different regional footprint.
• MG McGrath: MG McGrath is a Midwest mechanical and architectural contractor with design-build capabilities across HVAC, plumbing, and structural systems. Comparable self-perform model and design-build orientation to Cannistraro but operating outside New England.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/jccannistraro
• YouTubeyoutube.com/channel/UCYGQSUjOF_DEOvgvf-_JZ7g
• Facebookfacebook.com/JCCannistraro
• LinkedInlinkedin.com/company/j-c--cannistraro-llc
• Instagraminstagram.com/jccannistraro/?hl=en

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 Cannistraro