Dagher Engineering, PLLC
Dagher Engineering is a New York City building systems engineering and sustainability consultancy providing MEP design, Passive House consulting, energy modeling, CFD analysis, commissioning, LEED advisory, and NYC Special & Progress Inspections to commercial and residential building owners, developers, and construction projects.
- Company typePrivate
- Founded2000
- HeadquartersNew York, United States
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Dagher Engineering, PLLC does
Dagher Engineering, PLLC is a New York City-based building systems engineering and sustainability consulting firm that, prior to its acquisition by Pennoni effective June 30, 2025, operated as a private professional services practice founded in 2000 with 11-50 employees headquartered at 29 Broadway in Manhattan. The firm delivers comprehensive MEP engineering — HVAC, electrical, plumbing, fire protection and alarm, and low-voltage systems — alongside a higher-margin layer of specialized services including Passive House consulting, energy modeling, computational fluid dynamics (CFD) analysis, LEED certification and sustainability consulting, commissioning and start-up services, and NYC-mandated Special & Progress Inspections.
The business model is straightforward B2B professional services: project-based engagements delivered directly to building owners, developers, and construction project stakeholders in the New York market, with revenue generated through consulting and engineering service fees rather than product or licensing revenue. No specific pricing model or contract structures are publicly disclosed. The firm serves two primary customer segments — building owners/developers and NYC construction and development projects — with horizontal segmentation across both commercial and residential real estate. The company's stated differentiators are its depth in high-performance building design and its credentialed ability to perform NYC-regulated Special & Progress Inspections, capabilities described as 'award-winning' though specific awards are not named.
Following the June 30, 2025 asset acquisition by Pennoni (a Philadelphia-based multidisciplinary engineering firm), Dagher Engineering operates as 'The Dagher Engineering Division of Pennoni,' with founder Elias Dagher, PE, LEED AP, CPHC retained as Senior Principal and the full staff joining the acquirer. Pennoni's existing Manhattan office at 130 West 29th Street remains the regional headquarters while Dagher's 29 Broadway location serves as a second Pennoni office. The transaction was initiated and advised by Morrissey Goodale, a management consulting firm focused on the A&E industry.
Dagher Engineering, PLLC firmographics
Firmographics- Name
- Dagher Engineering, PLLC
- Legal name
- Dagher Engineering, PLLC
- Website
- https://dagherengineering.com
- Company type
- Private
- Founded year
- 2000
- Operating status
- Acquired
- Headcount range
- 11–50 employees
- Short description
- Dagher Engineering is a New York City building systems engineering and sustainability consultancy providing MEP design, Passive House consulting, energy modeling, CFD analysis, commissioning, LEED advisory, and NYC Special & Progress Inspections to commercial and residential building owners, developers, and construction projects.
- Ownership category
- akta.pro rank
Dagher Engineering, PLLC industry classification
Industry- Product category
- Building Systems Engineering Services
- NAICS
- Engineering Services (541330), Architectural, Engineering, and Related Services (5413)
- akta.pro primary industry
- MEP (Mechanical, Electrical & Plumbing) Engineering Consulting (BPAHAIAE)
Keywords
Where Dagher Engineering, PLLC is headquartered
LocationHeadquarters
- HQ city
- New York
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Dagher Engineering, PLLC business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Others
Revenue model
- Engineering Consulting Services: Professional engineering consulting services including MEP design, sustainability consulting, and specialized building systems services delivered on a project basis
Go-to-market motion1 record
Distribution channels1 record
Dagher Engineering, PLLC product offering
Product offeringCore offering
Dagher Engineering, PLLC is an award-winning building systems engineering and sustainability consulting firm providing comprehensive mechanical, electrical, and plumbing (MEP) design for commercial and residential buildings. The firm integrates core building systems engineering (HVAC, electrical, plumbing, fire protection/alarm, low-voltage systems) with advanced high-performance services such as Passive House consulting, energy modeling, CFD analysis, commissioning, LEED certification, and NYC-mandated Special & Progress Inspections.
Product overview
Dagher Engineering, PLLC is an award-winning building systems engineering and sustainability consulting firm providing comprehensive MEP (mechanical, electrical, and plumbing) services combined with advanced high-performance building expertise. The company's portfolio includes core building systems engineering (HVAC, electrical, plumbing, fire protection, and low-voltage systems) integrated with specialized services such as Passive House consulting, energy modeling, computational fluid dynamics (CFD) analysis, commissioning, LEED certification, and NYC Special & Progress Inspections. Following the June 30, 2025 acquisition by Pennoni, the firm now operates as 'The Dagher Engineering Division of Pennoni' while maintaining its office at 29 Broadway in Manhattan.
Differentiator
Problem solved
Functional benefit
Products and services
- HVAC Systems Engineering Engineering design services for heating, ventilation, and air conditioning systems in commercial and residential buildings.
- Electrical Systems Engineering Electrical power distribution, lighting, and electrical infrastructure design services for commercial and residential buildings.
- Plumbing Systems Engineering Water supply, drainage, and plumbing infrastructure design services for buildings.
- Fire Protection and Alarm Systems Engineering Design of fire suppression systems, sprinklers, and fire alarm systems to meet building safety requirements.
- Low-Voltage Systems Engineering Engineering services for low-voltage systems including data, communications, and security infrastructure.
- Passive House Consulting Consulting services for Passive House building certification, focusing on ultra-low energy consumption building design.
- Energy Modeling Simulation and analysis of building energy consumption to optimize efficiency and sustainability.
- Computational Fluid Dynamics (CFD) Analysis Advanced airflow and thermal analysis using computational methods to optimize building comfort and systems performance.
- Commissioning and Start-Up Services Verification and testing services to ensure building systems are designed, installed, and perform as intended.
- LEED Certification and Sustainability Consulting Leadership in Energy and Environmental Design certification advisory and sustainability strategy services.
- Special and Progress Inspections Required inspection services for New York City construction projects to verify compliance with building codes.
Companies that use Dagher Engineering, PLLC
Customer profileSegments2 records
Ideal customer profiles1 record
Dagher Engineering, PLLC technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature6 records
Dagher Engineering, PLLC partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Morrissey GoodalecoreMorrissey Goodale, a specialized management consulting and research firm exclusively serving the architecture, engineering, and environmental consulting industries, initiated the transaction and advised Dagher Engineering in its acquisition by Pennoni.
Scale indicators1 record
Recent moves3 records
Expansion highlights4 records
Dagher Engineering, PLLC competitors and assessment
Company assessmentDirect peers
- Jaros, Baum & Bolles: Long-established NYC-based MEP engineering consulting firm serving building owners and developers. Directly comparable in service mix, project types, and geographic focus to Dagher Engineering.
- AKF Group: Mid-sized MEP and sustainability consulting firm with strong NYC presence. Overlaps directly with Dagher's HVAC, electrical, plumbing, and LEED/sustainability consulting offerings for commercial real estate clients.
- ME Engineers: MEP and lighting design consulting firm serving high-performance buildings across major U.S. markets including New York. Comparable business model and specialization in complex, sustainability-focused building projects.
- Syska Hennessy Group: National MEP and critical facilities engineering firm with a strong NYC office. Competes in similar commercial, healthcare, and mission-critical project segments.
- Cosentini Associates (a Tetra Tech company): NYC-headquartered MEP engineering consulting firm now part of Tetra Tech. Direct competitor for high-performance commercial and institutional building projects in the New York market.
- Atelier Ten: Specialist environmental design consultancy focused on high-performance, Passive House, and net-zero buildings. Closely comparable to Dagher's specialized sustainability, energy modeling, and CFD consulting services.
- Integral Group: Engineering firm specializing in MEP, energy modeling, commissioning, and net-zero building design. Strong overlap with Dagher's high-performance building and sustainability consulting offerings.
- PAE Consulting Engineers: MEP engineering firm with a strong sustainability and high-performance building focus. Comparable in service mix to Dagher with a similar size and project orientation.
Broad incumbents
- Buro Happold: Global engineering consultancy with strong sustainability, energy modeling, and building services practices. Competes with Dagher on high-performance and Passive House projects but at much greater scale and broader service portfolio.
- Arup: Global engineering and sustainability consultancy with deep NYC presence. Competes with Dagher on high-performance, sustainable building design and energy consulting but offers a much broader portfolio including structural and civil.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat2 records
Key risks5 records
Key highlights6 records
Customer concentration
Dagher Engineering, PLLC social profiles
Digital presenceDagher Engineering, PLLC financial estimates
Financial estimateRevenue estimate
Valuation estimate
Dagher Engineering, PLLC leadership team
Management profileNumber of profiles
Profiles1 record
Dagher Engineering, PLLC funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Dagher Engineering, PLLC 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 Dagher Engineering, PLLC
What does Dagher Engineering, PLLC do?
Dagher Engineering, PLLC is an award-winning building systems engineering and sustainability consulting firm providing comprehensive mechanical, electrical, and plumbing (MEP) design for commercial and residential buildings. The firm integrates core building systems engineering (HVAC, electrical, plumbing, fire protection/alarm, low-voltage systems) with advanced high-performance services such as Passive House consulting, energy modeling, CFD analysis, commissioning, LEED certification, and NYC-mandated Special & Progress Inspections.
Is Dagher Engineering, PLLC a public or private company?
Dagher Engineering, PLLC is a private company. It is classified as corporate owned and is currently acquired.
When was Dagher Engineering, PLLC founded?
Dagher Engineering, PLLC was founded in 2000. It employs 11 to 50 people.
Where is Dagher Engineering, PLLC based?
Dagher Engineering, PLLC is headquartered in New York, United States, in the North America region.
How does Dagher Engineering, PLLC make money?
One revenue line is on record: engineering Consulting Services.
Who are Dagher Engineering, PLLC's main competitors?
Direct peers on record are Jaros, Baum & Bolles, AKF Group, ME Engineers, Syska Hennessy Group, Cosentini Associates (a Tetra Tech company), Atelier Ten, Integral Group and PAE Consulting Engineers. Broad incumbents are Buro Happold and Arup.
Does Dagher Engineering, PLLC have an API?
No public API is recorded for Dagher Engineering, PLLC.
What industry is Dagher Engineering, PLLC in?
Dagher Engineering, PLLC's product category is Building Systems Engineering Services. Its primary akta.pro industry code is BPAHAIAE, MEP (Mechanical, Electrical & Plumbing) Engineering Consulting. Its NAICS code is 541330.