building automation and controls

Advance Air & Heat Co., Inc. is a Certified Woman-Owned Business (WBE) and full-service provider of commercial HVAC services, refrigeration, and building automation solutions. Based in Marion, MA, it serves Southeastern Massachusetts, Cape Cod, and Rhode Island. Since 1986, it has worked with commercial, industrial, public, and non-profit clients.

24-hour emergency servicesboiler serviceschiller installation and repairductwork installation and repairHVAC maintenanceHVAC repairHVACR installation and replacementrefrigerationsheet metal fabrication

Air Handlers Service Group is a locally owned commercial mechanical contractor based in Auburn Hills, Michigan, serving Metro Detroit and Northern Ohio since 1985. It designs, installs, services and maintains commercial HVAC, heating and boilers, refrigeration and building controls, and offers 24/7 emergency service with an on-call technician paged directly.

24/7 emergency serviceboiler servicecrane and permit coordinationdesign-buildHVAC installationHVAC service and repairplanned maintenancerefrigeration serviceretrofitsstart-up and commissioning

Atigun Group, Inc. is a Georgia corporation established in 2004 by an Army veteran to meet a Federal need for asset management and technical equipment maintenance. It provides equipment management, logistics, supply chain and asset management, warehouse operations, facilities and grounds maintenance, and energy consulting services to government agencies and corporate clients worldwide. It is a Service Disabled Veteran Owned Small Business (SDVOSB) and HUBZone Certified.

asset managementCAD designelectrical workenergy auditingenergy managementequipment maintenancefacilities and grounds maintenanceHVAC maintenanceinfrared thermographyjanitoriallandscapinglogisticsPest controlplumbing and pipefittingRetro-CommissioningRFID equipment trackingspecialty fabricationSupply Chain Managementwarehouse operations

August Winter & Sons, Inc. is a mechanical contractor based in Appleton, Wisconsin, founded in 1929 by August Winter, a pipefitter, with his sons Roy and Wally. The company serves commercial, institutional, and industrial markets with mechanical contracting, HVAC, plumbing, industrial field services, water/wastewater, site utilities, and fabrication. It opened a Wausau branch in 1999 and offers 24-hour service.

3D laser scanningASME pressure vessel fabricationboiler repaircustom fabricationdesign-buildHVAC servicepipe fabricationplumbingpreventive and predictive maintenancerobotic layoutstainless steel fabricationtank fabricationvirtual construction

ENFRA develops, delivers, and sustains energy infrastructure for mission-critical organizations, with capabilities spanning engineering, construction, operations and maintenance, fabrication and modular construction, energy performance management, and Energy-as-a-Service. It reports more than 3,000 employees across 28 locations and over 100 years of delivering energy infrastructure solutions for healthcare, higher education, hospitality, industrial, and other mission-critical environments. The company rebranded as ENFRA in May 2025.

commissioningdesign-buildelectrical constructionElectrical Engineeringenergy auditsEnergy Modelingenergy system designfabricationfacility benchmarkingmechanical constructionMechanical Engineeringmodular constructionmonitoring-based commissioningperformance analyticsplumbing designpreventive maintenancestructural engineering

Brislin, Inc. is a third-generation, family-owned mechanical contracting company founded in 1956 in Columbus, Mississippi, serving the Golden Triangle region and North Mississippi. It provides complete mechanical systems for air conditioning, heating, plumbing, and process piping, and employs over 50 skilled professionals including pipefitters, plumbers, and sheet metal specialists. The company is the only Carrier Factory Authorized Dealer in the Golden Triangle region.

24x7 emergency servicedesign-build engineeringductwork and ventilation installationHVAC installation and replacementplumbing and pipingpreventive maintenanceprocess pipingsheet metal fabrication

Calcasieu Mechanical Contractors, Inc. (CMC) is a third-generation, family-owned commercial, military, and industrial HVAC contractor serving Louisiana and East Texas since 1988. The company provides HVAC construction and installation, preventative maintenance, repair, automation and control solutions, and metal fabrication, with 24/7 emergency service and locations in Lake Charles, Baton Rouge, Lafayette, and Beaumont, TX.

24/7 emergency servicedesign-build engineeringenergy servicesHVAC installationHVAC maintenanceHVAC repairmetal fabrication

Keystone HVAC & Climate Systems is a specialty MEP contractor based in Virginia Beach, VA, serving the Hampton Roads region. It provides full-scope mechanical and electrical contracting for commercial, government, and residential clients, self-performing mechanical, electrical, and controls work in-house as a design-build partner. The company is SWaM certified and EM-385 compliant.

commercial and residential electrical constructionconduit installation (EMT, Rigid, PVC)custom ductwork fabricationdata and network cablingequipment rigging and placementEV charging station installationfire alarm systemsHVAC installationHVAC repair and maintenancemechanical insulationSolar and renewable energy systems

Computerized Controls Company designs and builds next generation building automation and control systems that optimize comfort, lighting and fresh air ventilation, improving wellness and indoor air quality while reducing energy consumption. Founded in 1994, the firm's work ranges from large-scale residential homes to mechanical plants, tenant floors, commercial refits and new construction. It offers results-focused consulting services and is committed to the AIA 2030 Challenge.

consultingenergy performance optimizationmechanical design

Controlled Air, Inc. is a commercial HVAC and energy solutions provider serving commercial and industrial facilities in Connecticut, Massachusetts, and Rhode Island. Founded in 1980, the company offers design-build HVAC, building automation and controls, combined heat and power, gas heat pumps, microgrids, and energy efficiency services, along with service and preventative maintenance.

combined heat and powerenergy evaluationsHVAC design-buildmicrogridspreventative maintenancerefrigeration and gas pipingsheet metal fabrication

Since 1989, Digitrol has specialized in the heating, ventilation and air conditioning industry. The team provides 24-hour HVAC service to commercial and industrial companies, with certified technicians receiving factory training from Carrier, Trane, York and other equipment manufacturers. The company holds Mechanical Contractor Licenses in NC and SC and serves as a full service provider to design, install, maintain or replace HVAC equipment.

air balanceduct fabricationHVAC serviceinstallationmaintenancemechanical pipingpump repairsystem design

Efficient Home, LLC is a general contractor founded in 2006 that delivers energy efficiency services throughout the Mid-Atlantic area, including energy audits, energy modeling, commercial energy efficiency improvements, and multifamily property work. Headquartered in Burtonsville, Maryland, it serves residential, commercial, and industrial property owners and works with utilities such as Pepco, BGE, SMECO, Delmarva, and Potomac Edison.

air sealingappliance upgradesblower door testingcombustion testingenergy auditingenergy efficiency modelinggeneral contractingHVAC installationinfrared analysisinsulationlighting upgradeswater heater installationweatherizationwindow and door installation

Elliott-Lewis is the largest mechanical service contractor in the Delaware Valley, providing mechanical service, construction, design and installation, facilities management, and energy management. Its service force of over 80 technicians is supported by a digital operations center available 24/7, and it serves Eastern Pennsylvania, New Jersey, Delaware, and parts of Maryland.

air and water balancingdesign-builddrain and sewer cleaningeddy current testingenergy managementFacilities managementhigh pressure water jettingHVAC/R service and installationmechanical constructionoil analysisplumbingrefrigerant managementsystem commissioningvibration analysis

ElstonAire is a comprehensive air conditioning system sales, service and installation provider serving Texas since 1987. In business for over 30 years, the company offers both residential and commercial HVAC services, including green energy efficiency services, and designs custom systems integrating technologies like Smart Thermostats. It also provides construction and facilities management services.

constructioncustom system designFacilities managementHVAC installationHVAC service and maintenancewater treatment

Havtech is a commercial HVAC company serving the Mid-Atlantic (Maryland, D.C., Virginia, and Pennsylvania). It supports contractors, engineers, architects, and building owners across the full HVAC lifecycle, from design and equipment selection to installation support, service, and optimization. Havtech was established in 1983 and represents more than 230 manufacturers, with more than 180 engineers, specialists, and service experts.

air distributionengineering design supportHVAC equipment distributionparts and supplies warehousingsingle-source procurementstart-up and servicetraining and continuing education

Inspection Experts, Inc. (IEI) was established on May 28, 2004 and has grown from inspection and environmental services roots into a multidisciplinary organization delivering integrated facilities, environmental, construction, engineering, inspection, and technology solutions to government and institutional clients. IEI is an SBA-certified Woman-Owned Small Business (WOSB) and minority-owned, with work performed across 44 states and 90+ countries.

construction managementdesign-buildemergency restorationenvironmental compliancefacilities operations and maintenancehazardous materials abatementhousing inspectionsindustrial hygienemaster planningpredictive and preventive maintenancewater intrusion response

Design. Build. Maintain. Ivey Mechanical safely builds quality HVAC, plumbing and process piping systems. Our team is expertly trained, committed to our projects, and appreciated like family. Protect your investment by having the same team regularly maintain your building’s systems. How We Build Quality People. Quality Performance. We design, fabricate and build award-winning mechanical systems. View Our Work View Our Capabilities Client Testimonials: Bluntly, we have never had a fast-tracked project of this magnitude succeed mechanically to such a high standard. Rod L. Booze, AIA NCARB ACHA // Ascension Group Architects Ivey Mechanical has consistently staffed projects with individuals that are proactive, knowledgeable, straightforward. Stephan H. Kemp, P.E. // TLC-Engineering for Architecture Ivey did an outstanding job in completing this project within budget, with outstanding.

24/7 demand servicecommissioningfabricationHVAC installationplumbingPre-Constructionpreventive maintenanceprocess pipingspecial projectsVDC

Applying data from both inside buildings and beyond, our customers can now manage operations systemically.

design and buildenergy performance contractingfire protectionpredictive maintenanceremote diagnosticssecurity systemssystem integrationthermal management