commissioning

Diversitec is an infrastructure partner delivering lifecycle services for power systems, network hardware, and microwave and wireless infrastructure, from design and deployment to resale, replacement, and recycling. With over 30 years of experience, it serves network operators, utilities, data centers, and public-sector clients, and is an R2-certified partner.

asset recoverybattery testing and lifecycle servicescomponent-level testingDC power system design, installation, and maintenanceequipment sourcing and distributionload testingmicrowave and RF planning, design, and installationnetwork equipment repairpreventive maintenanceR2-certified electronics recyclingsite audits

DM Engineers PLLC is an engineering firm offering comprehensive MEP design services, including HVAC, building infrastructure, utility systems, power distribution, sustainable design, water, sewer, gas, compressed air, and specialized systems. It also provides Fire Protection and Life Safety services, Commissioning services, and Infrastructure Project Management across commercial, corporate, healthcare, residential, transportation, and international projects.

construction managementenergy auditsfire protection designHVAC designInfrastructure project managementlife safety designmechanical code inspectionsMEP designRetro-Commissioning

DMG HVAC is a full-service HVAC company with 55+ years in HVAC, offering a single point of contact for HVAC projects and maintenance. It provides equipment, controls, parts, service, air distribution, and industrial solutions, with divisions including ToroAire, MAPCO Hawaii, and Sharpe. It serves consulting engineers, contractors, architects, and developers across California, Nevada, and Hawaii.

controls integrationcustom fan assembly manufacturingdamper manufacturingengineering and designHVAC installationmaintenanceproject managementstart-uptechnical support

DB Engineering is an employee-owned professional services company founded in 1999 by Douglas Blome. It provides engineering and technology consulting for the Built Environment, starting as HVAC experts and now offering data-driven smart building solutions. The team of over 50 professionals specializes in mechanical engineering and technology solutions, serving as a technology-agnostic partner for complex real estate challenges.

BMS/OT control consultingdata analysisenergy optimizationfault detection and diagnosticsHVACMechanical Engineeringpeer reviewrefrigerationsmart building strategysustainability program designtechnical program managementthermal engineering

Downes Construction is a 100% Employee Stock Ownership Plan (ESOP) company with 90+ employee-owners that began as a family business in 1934. It provides construction management, general contracting, design/build, preconstruction, construction administration, and owner's project management services for corporations, hospitals, universities, museums, schools, and municipalities throughout Connecticut and Rhode Island.

budgeting and estimatingconstructability reviewsconstruction managementCPM schedulingdesign/buildgeneral contractinglaser scanning / BIMpreconstruction planningproject closeout and warrantyself-perform carpentrytrade coordinationvalue engineering

Dixon Process Automation Services Inc. (DPAS) is based in Lago Vista, Texas, and helps manufacturers and critical infrastructure operators modernize control systems, optimize processes, secure operational technology environments, and turn industrial data into measurable business results. Owner Pat Dixon is a licensed professional engineer in Texas, Colorado, Virginia, and Washington. DPAS is independent of any vendor in the process control industry.

advanced process controlconsultingcontrol system upgradescustom application developmentengineeringMulti-variable Predictive Control (MPC)procurementproject managementSystems Integration

D.P. Wolff, Inc. designs, installs and maintains commercial HVAC, plumbing and mechanical systems for businesses, hospitals, laboratories, data centers, college campuses and religious institutions. Serving Westchester, Putnam, Dutchess, Rockland and Orange counties and the New York Metro area since 1994, the company offers construction and service from one source, including preventive maintenance and 24/7 emergency service.

24/7 emergency servicebuilding automation/controlsHVAC constructionplumbing constructionpreventive maintenanceretrofit and replacement installationssystem and energy analysis

Drake Controls is an authorized Woodward distributor and factory service center, holding Woodward's Recognized Turbine Retrofitter (RTR) and Recognized Engine Retrofitter (RER) designations. Founded in 2002 and a Score Group company, it stocks, services, and retrofits Woodward control systems for refineries, power plants, and pipelines worldwide, with locations across the US and Mexico.

control panel fabricationengineeringfactory-certified repairfield serviceinstallationretrofit and upgradestraining

Drake Integrations, LLC is a control systems engineering consulting firm based in Boise, Idaho, founded in September 2011. It provides expertise in the design and implementation of HVAC, building automation and energy management systems, offering commissioning, engineering and energy services to commercial, government, military, luxury residential, retail, higher education, K-12, bio-tech, data centers, hospitality and healthcare clients.

building automation system integrationcontrol systems engineeringdesign reviewenergy auditsEnergy Modelingmeasurement and verificationTitle 24 acceptance testing

DR Machinery is an industrial automation company and process diagnostician based in Anaheim, CA, founded in 2013. The company designs, builds, fixes and documents process equipment, from orbital-welded gas lines to PLC code, and hands over code, drawings, passwords and procedures. It serves industries including bioprocessing, aerospace and space, semiconductor, petrochemical, energy and manufacturing.

custom machineryfabricationHMI programmingleak testingorbital weldingPLC programmingpressure testingprocess diagnosticsrobot cellsSCADA integrationSOLIDWORKS 3D CADtube bendingwelding

DSC (Design Security Controls, LLC) is a Houston, Texas-based provider of complete low-voltage fire, security, and communications solutions for commercial and industrial facilities. Founded in Houston in 1978, DSC handles design, installation, inspections, testing, monitoring, and support of fire alarm, access control, video surveillance, intrusion detection, and structured cabling systems, partnering with general contractors, engineers, and architects.

24/7 monitoringaccess controlBDA systemsdesign-build and design-assistengineering coordinationfire alarm system design and installationinspections and testingintrusion detectionproject managementstructured cablingvideo surveillance

DTS America is an automation engineering company that designs and builds custom automation equipment for manufacturers, focused on product handling, robotics, conveyors, inspection, and controls. For nearly 30 years it has engineered mechanical, electrical, and software systems together, delivering custom-built, performance-focused solutions from concept through startup and commissioning.

auto gaugingcontrol systemsconveyor systemscustom automation system designend-of-arm toolinginspection systemspart handlingPLC and HMI developmentprecision fixturingrobotic integrationvision-based inspection

Dulohery Weeks is a professional consulting firm specializing in mechanical and electrical engineering, with extensive experience in government, commercial and institutional markets. Founded in Savannah, Georgia in 1972 as C. J. Dulohery, Jr. P.E., the firm became Dulohery & Weeks, Consulting Engineers, Inc. in 1974 and is now known as Dulohery Weeks. The firm focuses on sustainability and LEED principles in building design.

AutoCADBuilding Information Modeling (BIM)Electrical Engineeringenergy managementEnergy Modelingfire protection designHVAC designLEED consultingMicroStationplumbing designRevitSustainability consulting

DWD International designs, manufactures, installs and maintains custom explosion-proof, corrosion-resistant HVAC and pressurization systems for industrial, offshore and marine environments. Founded in 1974, the company serves the energy industry with systems operating in extreme temperatures from -40°C to 55°C, and pioneered a VFD pressurization unit in 1990. All work is performed in-house at a 60,000-square-foot facility in Houston, Texas.

coatingcustom designelectricalengineeringfabricationfactory acceptance testingmaintenanceMechanical assemblysteel fabrication

Dynamic Heating & Piping has been operating since 1968 as a mechanical contractor dedicated to serving the commercial, industrial, and institutional market sectors. It is a minority-owned business with a Cleanroom and Technology division, offering turn-key cleanroom solutions and ultra high purity piping. The company provides design/build services, project management, and service agreements in the Greater Chicago Market.

cleanroom constructiondesign/buildeddy current testingmechanical contractingprefabricationproject managementtemperature control retrofitsultra high purity pipingvibration analysis

Dynamic Systems, A Quanta Services Company (DSI) is a turnkey mechanical and process construction firm serving clients across the country, specializing in commercial HVAC and plumbing systems for healthcare, higher education, laboratories, hospitality, biopharmaceutical, and other specialty markets. The company provides 24/7 commercial HVAC and plumbing service and maintenance through hubs in Austin, Dallas, College Station, Houston, Lubbock, and San Antonio, Texas.

24/7 emergency response3D ModelingBuilding Information Modeling (BIM)HVAC installation and servicemechanical constructionoffsite fabricationpipefittingplumbingPreconstructionpreventative maintenanceprocess constructionsheet metal installationwelding

Dynamic Water Technologies (DWT) is a full-service water treatment company specializing in U.S. government tested and validated water saving technologies for cooling towers and other process water systems. DWT has developed a patented technology that utilizes controlled electrolysis to manage scaling, corrosion, and bio-contamination instead of using hazardous chemicals. The company remains independent and provides field service, maintenance, commissioning, and customer support for existing DSR installations.

biocontamination controlcontrolled electrolysis water treatmentcorrosion controlfield servicemaintenancePLC control systemsscale controlskid-mounted system design

Apicom Group (a company of Groupe ICM) is dedicated to the transportation industry, supplying and developing rotational test solutions to improve the quality and efficiency of products for manufacturers. Apicom was originally established in 1978 in Desio (Milan) and later moved its headquarters to Cento (Ferrara), expanding with locations in the UK, Germany and China. In 2016 Apicom became the main shareholder of Dynamometer Services Group Ltd, UK.

constructiondesignequipment rentalinstallationintegrationmaintenanceoverhaulingsoftware supportsupply

E3 is a construction and engineering firm in Texas providing design-build and job order contracting facility solutions. Its services include HVAC system upgrades and replacements, LED lighting upgrades, indoor air quality analysis and improvements, building automation system optimization and commissioning, energy auditing, water quality and conservation, and ongoing performance management. The company has consulted over 350 Texas clients and has three offices in Texas.

building automationdesign-buildenergy auditingHVAC installationin-house engineeringJob Order ContractingLED lighting upgrades

ECBCx LLC is an independent third-party commissioning firm with over 90 combined years of HVAC experience. The company provides commissioning, re-commissioning, and retro-commissioning services for healthcare facilities, schools, office buildings, military facilities, research and manufacturing facilities, and government buildings. ECBCx LLC is an SBA certified WOSB and a FL WBE, and is a registered entity with SAM.gov.

functional testingO&M proceduresre-commissioningRetro-Commissioningsystems start-uptroubleshooting

EcoEthic Solar is a licensed and insured North Carolina-based specialist in DC battery-based solar and off-grid energy systems, serving clients nationwide for RV systems and regional off-grid installations. They design, install, and program custom Victron-based systems for full-time RV travelers, off-grid homeowners, and remote properties, and are authorized dealers and installers for Victron Energy and EG4.

Equipment procurementinstallationinverter and battery programmingmonitoring integrationsystem designsystem upgradestroubleshooting

ecojiva, LLC is a turnkey commercial and industrial energy solutions provider headquartered in Bloomfield Hills, Michigan. It delivers commercial solar, battery energy storage, AI-driven energy management via its patented ecoSEMS platform, demand management, UPS, microgrids and EV charging. The company reports 800+ commercial solar systems installed across the US and is an NMSDC-certified Minority Business Enterprise.

AI demand managementbattery storage designEV charginginstallationmicrogridsmonitoring and O&Mpermittingsolar PV engineering and designutility interconnection

ECSI International, Inc. is a manufacturer and global provider of Entry Control, Access Control, Perimeter Intrusion Detection and interoperability technology solutions for US Departments of Defense, Energy, Homeland Security and Justice. Established in 1976, it operates as a small business entity, is a registered and verified vendor of the US Federal Contractor Registration Program, and maintains ISO 9001 certification. Its systems protect nuclear power stations, prisons, military bases, seaports, airports, and chemical, petrochemical, border protection

Design & Engineeringfactory acceptance testinginstallation supervisioninteroperability technology solutionsoperations procedures and maintenance trainingsite surveysSystems Integrationsystems manufacturingthreat vulnerability risk assessments

EcxTeam, LLC provides commissioning services, including Retro / Existing Building Commissioning, and is certified by the American Air Balancing Association Commissioning Group as an ACG Certified Commissioning Authority. The company holds NEBB certifications for Whole Building Systems Technical Commissioning and Testing, Adjusting and Balancing of Environmental Systems, and is a LEED Certified AP - O&M through the US Green Building Council.

Facility Training Plan & AgendaFume and Laboratory Hood TestingO&M System Manual DevelopmentRetro / Existing Building CommissioningTesting, Adjusting and Balancing of Environmental Systems