prefabrication

Limbach is a building systems solutions firm specializing in mission-critical HVAC, plumbing, and electrical systems. With 23 locations and 2,100+ experts, it provides design, prefabrication, installation, management, and maintenance of heating, ventilation, air-conditioning, mechanical, electrical, plumbing, and controls systems, backed by a national network.

designenergy auditsinstallationmaintenanceManagementprogram managementretrofit

HRTLND Companies is an ESOP-owned family of commercial construction companies headquartered in Des Moines, Iowa, with an additional office in Walford, Iowa. Founded as Heartland Companies in 2002 and rebranded to HRTLND in 2021, it provides full-service commercial construction, finishing, and interior/exterior solutions through its family of companies, including Heartland Finishes, Heartland Door & Frame, and DA Bunch Co.

drywall installationframingmetal door and frame fabricationmodular constructionpainting and finishingplasteringwood door and frame fabrication

Highland Park Technologies designs and produces affordable, customizable, high-performance cladding panels that improve buildings and reduce energy bills. The company was founded to make building energy improvements more affordable and accessible, pioneering advanced prefabrication and installation methods to provide high-performance building upgrades at accessible cost. Their process runs from 3D LIDAR survey and parametric digital design to robotic prefabrication and snap-in installation.

3D LIDAR surveycoatingcuttingparametric modelingrobotic manufacturingsnap-in installation

HPS Mechanical, Inc. began in 1959 as Harry's Plumbing Service, founded by Harry DenHerder with a single truck focused on service work. Les DenHerder purchased the business in 1976, and the company expanded into new construction, pipeline services, and engineering design. In 1985 the name changed to HPS Plumbing Service, Inc. and the company acquired Quality Backhoe, adding site work. In 2018 it became a third-generation family business under Les and Scott DenHerder, expanding into San Diego markets, and in 2024 added HVAC services in Bakersfield. It off

engineering & designHVAC serviceindustrial pipingnew constructionplumbingsewer camera inspectionsewer line replacementsite workwater heater installation

Huen Electric, Inc. is a commercial electrical contractor and licensed engineering firm founded in 1983, with offices in Chicago, New York, and New Jersey. It provides electrical construction, design-build, prefabrication, technology, and clean energy solutions for commercial and industrial projects, and is a subsidiary of MYR Group Inc.

BIMdesign-buildelectrical constructionElectrical EngineeringIPD project delivery

Hypower is a licensed Florida General Contractor, Florida Electrical Contractor and Florida Underground Utility and Excavation Contractor headquartered in Fort Lauderdale, Florida. Founded in 1991, it employs over 400 people and has completed over 1,500 projects valued at over $1.5 billion, licensed to operate in more than 30 states.

airfield lighting systems installation and design/buildelectrical constructiongeneral contractingtelecommunications infrastructure design-build and installationunderground transmission and distribution systemsutility and excavation contractingutility-scale BOS/EPC solar constructionvirtual design and construction

Ickler Electric Corporation is an electrical contractor and engineering firm based in Poway, California, entering its 35th year of service in San Diego. It specializes in servicing the Biotech, Electronics Tech and Mission Critical industries, and is led by an electrical engineer. The company offers registered electrical engineering, in-house VDC/BIM-Revit-3D CAD abilities, prefabrication departments, lean/green production methods, and service technicians.

arc flash analysiselectrical contractingElectrical Engineeringinfrared scanninglean/green production methodsprogrammable logic control serviceVDC/BIM-Revit-3D CAD

Intermountain Electric (IME) is an electrical contractor established in 1946 that installs and services power and lighting for complex projects and critical environments. It is a wholly-owned subsidiary of Quanta Services, Inc., which it joined in 1999. Headquartered in Denver, IME delivers work nationwide with offices in Colorado, Nevada, and Nebraska.

24/7 serviceBIMconceptual estimatingdesign assistdesign-bid-builddesign-buildelectrical constructionvalue engineering

International Mechanical Services, Inc. (IMS) is a Texas-based contractor specializing in HVAC and Plumbing. IMS offers a complete range of mechanical services such as HVAC, Piping, Sheet Metal, Plumbing, Gas Pipe install and design assist. IMS operates out of its San Antonio headquarters at 1914 Breeden Ave, with warehouses over 40,000sf and in-house sheet metal and piping fabrication.

3D/Imaging/CAD detailingcoil line fabricationdesign-buildHVAC installationmillwrightpipe fittingplumbingsheet metal fabricationwelding

Interstates provides engineering, construction, automation, and operational technology services for industrial manufacturing and processing facilities. For over 70 years, the company has designed, built, automated, maintained, and protected industrial processes, infrastructure, and electrical systems for clients across the globe.

3D laser scanning and modelingdesign-buildelectrical constructionElectrical EngineeringElectrical site auditsindustrial analyticsindustrial automationIndustrial cybersecurityMaintenance and Supportmodular constructionNetworking and virtualizationpower system studiesprocurement

Itzko Glass & Metal, Inc. (IGM) is a full-service commercial glazing contractor founded in 2010 by Colin Itzko, licensed in California, Nevada, and Idaho. The firm reviews, designs, engineers, fabricates, installs, and glazes aluminum storefront and curtain wall systems on commercial properties, serving markets including education, multi-family, healthcare, hospitality, industrial/logistics, mixed-use, office, and retail.

3D Modelingautomated fabricationconsultingdesigndraftingengineeringfabricationglazinginstallationLEED certification assistancestretchforming

JB Henderson Construction is a general and mechanical contractor and custom fabricator serving manufacturing, industrial, commercial, and institutional clients in the public and private sectors. Based in Albuquerque, New Mexico with offices in Arizona and Ohio, JBH performs architectural and mechanical work, constructs clean rooms, supplies pipe and sheet metal fabrications, and provides design/build and design/assist services and BIM development. It is an approved DOE Order 414.1D and NQA-1 supplier.

BIM developmentclean room constructiondesign/buildgeneral contractingmechanical contractingpipe fabricationprocess pipingproject managementsheet metal fabrication

Jackson & Blanc is a Southern California mechanical system solutions provider with more than 90 years of experience. The company offers design, engineering, construction, HVAC, plumbing, building automation, prefabrication, and facility maintenance services, managing projects of all sizes from conception to completion for commercial, industrial, life science, healthcare, and institutional clients.

building automation and DDC controlschiller serviceconstructiondesign and engineeringenergy managementHVAC installationmechanical retrofitsplumbingPreconstructionpreventive maintenancerepair and replacementvirtual design and construction (BIM)

Sauer Group is a fifth-generation, full-service mechanical contractor founded in 1876 and based in Columbus, Ohio. It specializes in HVAC systems, industrial piping, plumbing, building automation, and controls, serving commercial, industrial, aerospace, healthcare, pharmaceutical, and mission-critical facilities across Central Ohio and surrounding states.

BIM modelingcommissioningcontrol panel fabricationdesign and preconstructionHVAC installationmetal fabricationmillwright servicespipe fabricationpiping and plumbingsheet metal fabricationstructural steel erectionwelding

JE Dunn Construction is a national general contractor founded in 1924, providing general contracting, construction management, and design-build services. The company operates 26 offices across 17 states and serves 17 markets including advanced industries, aviation, healthcare, industrial and manufacturing, justice, life sciences and research, mission critical, and sports and recreation.

Capital Investmentconstruction managementdesignEquipment Solutionslow voltageoff-site manufacturingPreconstruction

Jesse Stutts, Inc. is a 100% employee owned and operated electrical contractor operating throughout the Southeast since 1977. JSI serves commercial, government, healthcare, industrial, and mission-critical facilities, and is licensed as an Electrical Contractor and General Contractor in most southeastern states.

Building Information Modeling (BIM)design assistdesign-buildelectrical constructionIn Field Electronic SurveyingInfrared scanning and thermal inspectionsPhenolic labels & device plate engravingpreventive maintenanceUL 50 and UL 50E electrical enclosure fabrication

Findorff is an employee-owned commercial construction firm established in 1890, providing construction management and general contractor services throughout Wisconsin and across the U.S. The company was named 2025 Builder of the Year and serves industries including healthcare, education, corporate, government, industrial, mission critical, and more.

ADA upgradesBuilding Information Modeling (BIM)carpentryconcrete workdemolitiondesign/buildfacility assessmentsmasonry work & restorationPreconstructionself-perform workspecialty equipment relocationtenant buildoutsvirtual design & construction

J-PEX Solutions Inc. is a premier electrical construction company serving commercial and industrial sectors, offering electrical construction, consultancy, and management services. The company emphasizes safety and quality, with roots in the early 1990s petrochemical refinery construction experience. Based in Bakersfield, California, it provides electrical and instrumentation expertise, prefabrication, staffing, and site management.

consultancyelectrical constructionelectrical & instrumentationproject managementsite managementstaffing

J. R. Pierce Plumbing Co. provides project engineering, plumbing design, and commercial and residential plumbing services to the construction industry. Founded in 1927, it has grown to four locations: a corporate office in Rocklin, California and regional facilities in Reno, Nevada, Fresno, California, and Modesto, California. It specializes in new construction of residential, multi-family units and commercial projects, using CAD and Internet technologies to design and track work from initial trenching through final installation, and offers 24-hour emerg

CAD designdrain cleaninghydro jettinginstallationplumbing designproject engineeringtrenchingvideo inspection

JRT Mechanical is a full mechanical plumbing, hydronics, HVAC, and electrical contractor and service company serving the Pacific Northwest, with an intense focus on commercial and industrial projects. The company has grown from a small residential plumbing company into a full mechanical contractor working on complex industrial systems, and provides plumbing, HVAC, and electrical services for commercial, residential, industrial, and public works clients.

electricalfabricationHVAChydronicsindustrial mechanical systemsplumbingproject management

J.W. Didado Electric is a full-service electrical contractor headquartered in Akron, Ohio, founded in 1958 as a one-man crew by John W. Didado. It provides high-performance electrical solutions to residential, commercial, industrial, institutional and large utility customers, serving customers in 23 states with more than 700 employees. It joined the Quanta Services family of companies in 2013.

arc flash analysiselectrical contractingEngineering Servicesgeneral contractinggenerator installationgrounding studiesnew constructionpower quality studiespower restorationpreventative maintenancerenovationssubstation constructiontransmission line repairvalue engineering

KABTech Corp is a supplier of industrial warehouse modifications, including in-plant offices, structural mezzanines, equipment platforms, modular buildings, and facility safety products. Located in Duncan, SC, it serves manufacturers, warehouses, and contractors nationwide, quoting 800+ projects annually across all 50 states and completing projects in Canada, Belgium, and Brazil. Its products meet or exceed OSHA standards.

custom designinstallationmodular constructionsoundproofing

Kilgore Industries is a Houston-based contractor providing integrated mechanical, electrical, and plumbing (MEP) solutions, along with in-house fabrication and service capabilities, for complex construction projects across Texas. It serves industrial and commercial projects in healthcare, multifamily, aviation, education, and mission-critical sectors, with offices in Houston, Austin, Arlington, and San Antonio.

design-buildductwork installationelectrical constructionequipment startup and commissioningfabricationHVAC installationLean constructionmechanical constructionpipefittingplumbing constructionsheet metal fabrication

Kirk Williams Company is a mechanical contractor founded in 1949 with 77+ years of experience and a 40,000+ SF fabrication facility in Central Ohio. It provides integrated mechanical construction services including design assist, BIM coordination, fabrication and field installation for complex projects across mission critical, healthcare, industrial, research, aviation and institutional markets.

BIM coordinationclash detectiondesign assistfabricationfabrication drawingsfield installationheadersinstallation drawingslaser field layoutpipe rackspipe spool fabricationsheet metal fabricationskidsspecialty fabrication