Environmental Engineering
Environmental Engineering is a privately held HVAC engineering and contracting firm, founded in 1969 in Milford, Connecticut, serving commercial, industrial, and institutional customers across the Northeast US with engineering design, installation, and recurring maintenance services.
- Company typePrivate
- Founded1969
- HeadquartersMilford, United States
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Environmental Engineering does
Environmental Engineering, Incorporated (EEI) is a privately held heating, ventilating, and air conditioning (HVAC) engineering and contracting firm founded in 1969 and headquartered in Milford, Connecticut. The firm serves commercial, industrial, and institutional customers across the Northeast United States with an integrated three-pillar offering: engineering design, construction and installation, and ongoing service and maintenance. Projects range from basic piping and ductwork renovations to sophisticated design/build applications for large buildings, process cooling installations, and wind tunnels.
EEI's core technical capability centers on temperature and humidity control for sensitive environments — including computer rooms, clean rooms, data centers, hospital operating rooms, and custom process applications — supported by Registered Professional Engineers and computer-aided design (CAD) workflows. The technical team includes multiple graduate engineers and licensed technicians, with the firm citing over 200 combined years of applied industry expertise. Leadership is provided by the Belfonti family, with John D. Belfonti, P.E. as CEO and John C. Belfonti, P.E. as President, and supplementary technical credentials including LEED certification held by at least one project engineer.
EEI generates revenue through three streams: project-based engineering and construction/installation work, recurring preventative maintenance contracts, and 24/7 emergency service fees. The firm operates a traditional B2B field-sales go-to-market with no digital-first or self-serve motion; all customer engagement occurs via phone or web contact form. EEI carries Connecticut contractor licenses (S1#302901 & SM1#3601) and is trusted to maintain tens of millions of dollars of mechanical and temperature control equipment on behalf of its customers, which forms the recurring-revenue backbone of the service segment.
Environmental Engineering firmographics
Firmographics- Name
- Environmental Engineering
- Legal name
- Environmental Engineering, Incorporated
- Website
- https://eei-hvac.com
- Company type
- Private
- Founded year
- 1969
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Environmental Engineering is a privately held HVAC engineering and contracting firm, founded in 1969 in Milford, Connecticut, serving commercial, industrial, and institutional customers across the Northeast US with engineering design, installation, and recurring maintenance services.
- Ownership category
- akta.pro rank
Environmental Engineering industry classification
Industry- Product category
- HVAC Engineering & Contracting Services
- NAICS
- Engineering Services (54133), Engineering Services (541330)
- SIC
- Services-Engineering Services (8711)
- akta.pro primary industry
- HVAC & Refrigeration Contracting (IMAFALAB)
- akta.pro secondary industries
- Building Thermal Controls & Building Management Systems (HVAC BMS) (IMAHAKAK), HVAC Equipment (Heating, Cooling & Air Handling) (IMAHAKAB)
Keywords
Where Environmental Engineering is headquartered
LocationHeadquarters
- HQ city
- Milford
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Environmental Engineering business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Supply Chain, Infrastructure
Revenue model
- Engineering Services: Professional engineering services including system design, new installations, retrofits, replacements, and consultation for HVAC systems.
- Construction/Installation: Installation of HVAC systems including piping, ductwork, and sophisticated design/build applications. One-time project-based revenue.
- Service and Maintenance: Preventative maintenance, repairs, retrofits, and 24-hour emergency service for heating, cooling, and temperature control systems. Recurring maintenance contracts and emergency service fees.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels2 records
Environmental Engineering product offering
Product offeringCore offering
Environmental Engineering is a heating, ventilating and air conditioning (HVAC) engineering and contracting firm providing integrated engineering design, construction/installation, and ongoing service and maintenance for commercial, industrial, and institutional buildings. The company specializes in temperature and humidity control for sensitive environments such as computer rooms, clean rooms, data centers, hospital operating rooms, and process cooling applications.
Product overview
Environmental Engineering is a heating, ventilating and air conditioning (HVAC) engineering and contracting firm offering integrated services across engineering design, construction/installation, and ongoing service/maintenance. The company was founded in 1969 and serves commercial, industrial, and institutional sectors. Their core offerings span Engineering Services (professional HVAC system design and computer-aided engineering), Construction Services (installation with pipefitting and sheet metal mechanics), and Service & Maintenance (preventative maintenance, repairs, retrofits, and 24/7 emergency service). The company specializes in Process Cooling, Indoor Air Quality, Clean Rooms, Computer Rooms, and Energy Management Systems, with particular expertise in temperature and humidity control for sensitive environments like computer rooms, data centers, and clean rooms. Projects range from simple piping and ductwork renovations to sophisticated design/build applications for large buildings, process cooling, and wind tunnels.
Differentiator
Problem solved
Functional benefit
Products and services
- Engineering Services Professional HVAC engineering and design services including computer-aided system designs (CAD), specializing in sophisticated heating, cooling and control systems for computer rooms, clean rooms, custom process applications, and hospital operating rooms. Targets commercial, industrial, and institutional clients needing engineered HVAC solutions.
- Construction Services
- Service & Maintenance
- Process Cooling Systems
- Clean Room Climate Control
- Computer Room HVAC
- Energy Management Systems
Quantifiable outcome
- Proper maintenance extends equipment life and prevents premature capital replacement costs.
- +1 more outcomes
Companies that use Environmental Engineering
Customer profileSegments3 records
Ideal customer profiles3 records
Environmental Engineering technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Environmental Engineering partnerships and signals
Strategic signalScale indicators3 records
Recent moves4 records
Expansion highlights1 record
Environmental Engineering competitors and assessment
Company assessmentDirect peers
- Limbach Holdings: Limbach is a publicly traded specialty mechanical contractor delivering HVAC, plumbing, and building controls design, installation, and service to commercial, industrial, and institutional customers. It is the closest publicly known comparably-sized mechanical contracting peer to EEI, sharing the same integrated engineering-construction-services model.
- Service Logic: Service Logic is a national network of commercial HVAC, mechanical, and plumbing service providers with a decentralized regional-branch model. Its recurring service and energy-solutions orientation aligns closely with EEI's preventative maintenance and retrofit business.
- Comfort Systems USA: Comfort Systems USA is a leading national mechanical contracting firm providing HVAC installation, retrofit, and service to commercial and industrial customers. Its branch-network model competes head-to-head with EEI in the Northeast on commercial HVAC design/build and service work.
- IES Holdings: IES Holdings is a national provider of electrical and mechanical infrastructure solutions, including commercial HVAC, plumbing, and building services for industrial, commercial, and institutional customers. Its mechanical segment directly overlaps EEI's HVAC contracting and service offering.
Broad incumbents
- EMCOR Group: EMCOR Group is a Fortune 500 leader in mechanical and electrical construction, facilities services, and energy solutions serving commercial, industrial, and institutional clients nationwide. It is a broad incumbent that competes with EEI on larger Northeast design/build and service accounts while also addressing adjacent trades.
- Johnson Controls: Johnson Controls is a global building technology company combining HVAC equipment, building automation systems, and a large mechanical service network. Its OpenBlue building management and controls stack competes with EEI's energy management systems and sensitive-environment climate control capabilities.
- APi Group: APi Group is a global leader in safety, specialty, and industrial services with a large HVAC/life-safety and mechanical contracting portfolio. It competes indirectly with EEI for institutional and commercial building services contracts at a much larger scale and across multiple geographies.
- Trane Technologies: Trane Technologies is a global climate innovator manufacturing HVAC systems and operating a large service organization for commercial installations. While primarily an equipment OEM, its commercial service arm competes with independent contractors like EEI for high-end service contracts on installed equipment.
- Carrier Global: Carrier is a leading global HVAC and building automation manufacturer with a significant commercial service and controls business. Its installed-base service franchise competes directly with EEI for ongoing maintenance and retrofit work on HVAC equipment in commercial and institutional buildings.
Emerging players
- BGIS: BGIS is a global facilities management and real estate services company that bundles building operations, mechanical maintenance, and energy services under multi-year contracts. It represents an emerging competitive threat to EEI in managed HVAC service contracts for institutional and commercial clients.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat3 records
Key risks5 records
Key highlights7 records
Customer concentration
Environmental Engineering social profiles
Digital presenceEnvironmental Engineering financial estimates
Financial estimateRevenue estimate
Valuation estimate
Environmental Engineering leadership team
Management profileNumber of profiles
Profiles13 records
Environmental Engineering funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Environmental Engineering M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Environmental Engineering
What does Environmental Engineering do?
Environmental Engineering is a heating, ventilating and air conditioning (HVAC) engineering and contracting firm providing integrated engineering design, construction/installation, and ongoing service and maintenance for commercial, industrial, and institutional buildings. The company specializes in temperature and humidity control for sensitive environments such as computer rooms, clean rooms, data centers, hospital operating rooms, and process cooling applications.
Is Environmental Engineering a public or private company?
Environmental Engineering is a private company. It is classified as family owned and is currently operating.
When was Environmental Engineering founded?
Environmental Engineering was founded in 1969. It employs 11 to 50 people.
Where is Environmental Engineering based?
Environmental Engineering is headquartered in Milford, United States, in the North America region.
How does Environmental Engineering make money?
Three revenue lines are on record. Engineering Services are the primary driver. The others are construction/Installation and service and Maintenance.
Who are Environmental Engineering's main competitors?
Direct peers on record are Limbach Holdings, Service Logic, Comfort Systems USA and IES Holdings. Broad incumbents are EMCOR Group, Johnson Controls, APi Group, Trane Technologies and Carrier Global. BGIS is listed as an emerging player.
Does Environmental Engineering have an API?
No public API is recorded for Environmental Engineering.
What industry is Environmental Engineering in?
Environmental Engineering's product category is HVAC Engineering & Contracting Services. Its primary akta.pro industry code is IMAFALAB, HVAC & Refrigeration Contracting, with a secondary code of IMAHAKAK, Building Thermal Controls & Building Management Systems (HVAC BMS). Its NAICS code is 54133 and its SIC code is 8711.