Find engineering consulting firms by capability and location.

Energy by Design

Engineering The Future

Any Scale, Every Detail Handled.

MEP & Energy Consulting Engineering

CSI Engineering is an MEP/FP engineering design practice based in Portsmouth, New Hampshire. Founded in 1996, CSI Engineering began by supporting general and mechanical contractors with coordination drawings, as-built drawings, and design-build projects. In 2007, CSI Engineering expanded into full MEP/FP engineering services for architects, contractors, developers, municipalities, and the military. The three principal engineers are involved directly in every project, bringing construction-background perspective to building systems design. CSI Engineering's primary service area is New England, with completed projects extending to other US states and internationally.

Building Your Tomorrow!

Reliable Creative Engineering Solutions

Solving complex MEP/FP engineering challenges since 1961.

Innovative MEP design, commissioning, and consulting solutions across the Northeast

Innovative MEP/FP design and consulting engineering

We partner with architects and developers to deliver ambitious, sustainable, and enduring buildings through design-driven engineering.

Best-in-Class MEP/FP design firm

No Matter the Scope, KPI Has YOU Covered

MEP/FP Engineering, Commissioning, and Consulting

Engineering Excellence and Client Partnering

L. Naoum, P.E., P.C. (LNPC Consulting Engineers) specializes in mechanical, electrical, fire protection, and plumbing (MEP/FP) engineering services. Established in 2002, the practice offers design, analysis, and construction support to architects, building owners, and developers. Its capabilities span commercial, multi-family residential, education, healthcare, and religious facilities, supporting projects from initial programming and feasibility studies through design, construction management, and commissioning.

Building on a Legacy

P. Engineering PLLC, also operating as P. Max Engineering, is an engineering and construction practice providing professional engineering, pre-construction, and selective construction services. Headquartered in Buffalo, New York, with additional locations in New York City and San Antonio, Texas, it delivers design-build and turnkey project capabilities. The practice serves public, federal, municipal, and private clients on commissions ranging from minor installations to complex infrastructure upgrades across sectors including power and energy, facilities, education, and sports lighting.

MEP Engineering Excellence with a Focus on Quality, Attentiveness, and Transparency

Design | Engineering | Sustainability

Driving Tomorrow. Trusted Engineering.

Full-Service MEP/FP Engineering