Mechanical Engineering

Design Management Group is a consulting engineering firm located in northeastern Pennsylvania, serving contractors, architects, facilities, utilities, and other consulting engineers. The firm provides mechanical, electrical, plumbing, fire protection, technology, utility, and energy engineering services, including commissioning, energy audits, arc flash analysis, and substation and transmission line design.

3D modeling and analysisarc flash analysiscommissioningdesign-builddistribution OSP designElectrical Engineeringenergy auditsFire protection engineeringPlumbing Engineeringquality controlsubstation designtransmission line design

Design Systems, Inc. (DSI) is a multidisciplinary manufacturing engineering and consulting firm founded in 1983 that helps manufacturers design better facilities, improve production flow, and bring complex operations from concept through commissioning. With more than 225 engineers and professionals across North America, DSI provides engineering, program management, and consulting services to manufacturers worldwide.

3D laser scanningcommissioningdigital twinsElectrical Engineeringindustrial engineeringinstallation coordinationlean manufacturingMES consultingprocess optimizationproject managementsimulation

DEVSON Engineering LLC is a robotics, automation, and mechanical engineering company based in Winthrop, WA. Its engineers design, build, program, and install custom robotic, machine, and tooling systems, and provide mechanical, controls, and software engineering services. The company serves military and commercial aerospace applications and offers nationwide support.

automated trimming, milling, drilling, and fasteningmachine designmanufacturing automationrobot and CNC machine accuracy calibrationrobotics design and integrationsoftware and controls engineeringtooling design and installation

DG3A Design Group, PSC is an engineering and architectural firm based in San Juan, Puerto Rico, established in 1997. It specializes in design and project management services, delivering creative, practical solutions completed on time and within budget, with a commitment to quality and collaboration from concept to completion.

architectural designcivil engineeringconsultingearthworksElectrical Engineeringproject managementroad and highway designsite developmentstormwater managementstructural engineeringwater and wastewater systems

Diamond Precision Machine, Inc. is an AS9100 Aerospace Standard Compliant full service machine shop founded by Michael Squillante in 1990 and located in Palm Bay, Florida. It features state of the art CNC machines, a modern inspection system, and a fully equipped manual jobbing shop, and serves the aerospace, robotics, and hi-tech electronics industries as well as custom manufacturers from prototype to production.

CNC machininginspectionjig & fixture designmanual jobbing

DiClemente Siegel Design Inc. (DSD) is a multi-disciplinary engineering and architectural firm headquartered in Southfield, Michigan with a branch office in Burton, Michigan. Founded in 1969, DSD provides architectural, mechanical, and electrical design services and is a Veteran-Owned Business. The firm specializes in renovation work for markets including healthcare, commercial, automotive, K-12, higher education, religious, and government, and has many LEED Certified projects.

architectureConstruction documentsdesignElectrical EngineeringPlanningrenovation

Dieffenbach & Hritz (D&H) is a full-service engineering firm established in 2005, providing engineering and environmental services to the natural gas and coal mining industries, private developers, and public agencies in Pennsylvania, West Virginia, Ohio, Virginia, and North Carolina. The team includes civil engineers, surveyors, landscape architects, biologists, and construction technicians, with offices in three states.

3D laser scanningaerial mapping and remote sensingarchitecturecivil engineeringconstruction inspectiondrone flyoversEnvironmental ServicesGISland surveyingstructural engineeringtransportation engineeringvolume calculations

Dimensiontek provides quality workmanship, high-level service, and rapid turnaround, with over twenty years of experience configuring equipment for service in extreme environments such as oceanic and desert climates. The company offers custom services including research and development, CAD design, machining, fabrication, Faro Arm/3D surfacing training, conventional prototype builds, manufacturing cost reduction analysis, rapid prototyping, reverse engineering, COTS component adaptation, and mechanical engineering for the Department of Defense and VBSS.

CAD designconventional prototype buildsCOTS component adaptationfabricationFaro Arm/3D surfacing trainingmachiningmanufacturing cost reduction analysisrapid prototypingreverse engineering

Dirks Products and Services Inc. is a vertical farming and engineering design firm that combines professional mechanical engineering services with environmentally conscious vertical farming of Lemnoideae (Duckweed). The company aims to cleanse water streams, enrich soil, and reduce atmospheric CO2, operating two programs: Dirks Duckweed and Dirks Engineered Systems.

engineering & designvertical farming

DJG Inc is a versatile architectural engineering firm with offices in Williamsburg, VA and Raleigh, NC, consulting throughout the Mid-Atlantic. The firm offers architecture, interior design, plumbing, mechanical, and electrical engineering, sustainable design, and construction administration, with over 48 years of experience serving industries including higher education, housing authorities, military, private sector, and state & municipal.

architectureconstruction administrationElectrical EngineeringInterior DesignPlumbing EngineeringSustainable Design

Dome Technology is an international construction company with more than 50 years of experience in 30-plus countries, providing turnkey solutions for bulk storage, commercial construction, and more. The company has completed more than 700 projects and specializes in dome construction, engineering, and material-handling systems.

concrete work and repairconstruction managementdome constructionElectrical Engineeringexplosion protectionfabricationFEED engineeringgeneral contractinggeotechnical analysismaterial handling system designroofing and coatingssilo and tank repairstructural engineeringtunnel construction

Doron Precision Systems, Inc. is a developer, manufacturer, installer, and servicer of land vehicle driving simulation systems, founded in 1973 by acquiring the driving simulation product line from the Singer Link Company in Binghamton, NY. The company has been a world leader in driving simulators for over 50 years, serving CDL truck, bus, law enforcement, fire, EMS, military, airport ground vehicle, and novice driver training markets.

driving simulation system developmentelectrical/electronic engineeringinstallationmaintenance and servicemanufacturingmotion systemssoftware engineeringtechnical supporttraining and curriculum development

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 consultingcommissioningdata analysisenergy optimizationfault detection and diagnosticsHVACpeer reviewrefrigerationsmart building strategysustainability program designtechnical program managementthermal engineering

Doulos Engineers and Technical Consultants, LLC is a Veteran Owned Small engineering firm specializing in Counter Small Unmanned Aerial System operations and integration support. It provides mechanical and civil engineering services and RDTE, enabling warfighters, leaders, and managers with technical and tactical expertise, including maintaining or replacing existing infrastructure and developing CUAS force protection plans.

civil engineeringCounter Small Unmanned Aerial System operations and integration supportRDT&E

DPI Labs, Inc. is a global provider of integrated and component cabin management solutions for all types of aircraft, including business, commercial, military, and head of state. For over 40 years it has developed, manufactured, and supported switches and switch panels, lighting and air distribution systems, entertainment systems, and complete cabin management solutions. It is headquartered in La Verne, CA, and holds FAA Repair Station Number 7DPR851C.

CNC MachineryElectrical EngineeringEMI testingEnvironmental testingLight LaboratorymanufacturingRapid 3D Prototypingrapid prototypingSound LaboratorySystems Engineeringvibration testing

Dunham is an engineering firm founded in 1960 in Rapid City, SD, providing mechanical, electrical, and plumbing (MEP) engineering services across the U.S. and Canada. With over 130 professionals, the firm offers integrated teams specializing in sustainability, ICT, security, commissioning, and energy services for architects, building owners, and design partners.

advanced computer modelingBIM/Revit MEPbuilding commissioningCFD modelingElectrical EngineeringEnergy ModelingICT designplumbing designpower analysissecurity system designSustainability

DV7 Engineering is an East Hartford, Connecticut-based safety-critical engineering firm specializing in design, verification, and validation of mission-critical products. Its team of electrical, software, and mechanical engineers delivers scalable solutions for certified and non-certified industries, with an in-house Independent Verification & Validation (IV&V) team. The company supports complex systems from concept through certification, focusing on reliability, regulatory compliance, and disciplined engineering processes.

certification supportdocumentationElectrical Engineeringengineering & designIndependent Verification & Validation (IV&V)software engineeringtestingtest rig developmentverification and validation

DWG is a 100% employee-owned MEP engineering firm in coastal South Carolina that has served the Carolinas and the Southeast for over 50 years. It partners with architects, developers, and builders across markets including commercial, multi-family, hospitality, faith-based, municipal, federal, healthcare, higher education, and K-12 education.

arc flash studiescommissioning servicesElectrical EngineeringEnergy ModelingEV Charging DesignFire protection engineeringMedium Voltage Distribution DesignPlumbing EngineeringSolar Power Design

EBD Services is a Project Management & Consulting Engineering firm that delivers strategic planning, program & project management, and engineering design solutions in the built environment. It provides Electrical, Mechanical, and Technology Consulting Services for healthcare, aviation, commercial, multi-family/mixed-use, higher education, civic, and federal/military markets. Formed in April 2019, the company has delivered over 250 projects with construction costs in excess of $1.6 Billion.

consulting engineeringDesign & construction managementElectrical Engineeringfacility condition assessmentProject & program managementstrategic-planningSustainability & electrificationsystem commissioningtechnology consulting

Ecotope, Inc. is a partner-owned engineering and research firm in Seattle, Washington, dedicated to high-performance buildings, energy efficiency, and decarbonizing the built environment. Founded in 1976, it provides MEP design for new and existing buildings, pioneering all-electric technologies, real-world performance verification, and policy development. Its expertise spans site analysis, engineering design, building technology research, operating strategies, performance monitoring, and policy development.

building performance monitoringbuilding technology researchenergy efficiency designMEP designpolicy developmentSite Analysis

ECR Engineering, LLC is a privately held multidisciplinary engineering firm founded on March 26, 2012, headquartered in Guaynabo, Puerto Rico, with offices in Fort Lauderdale, Florida and St. Thomas, USVI. Licensed in Puerto Rico, Florida, the U.S., and the U.S. Virgin Islands, it has delivered more than 300 projects across the Caribbean, Latin America, and the U.S., including water and wastewater infrastructure and PRASA Capital Improvements Program management.

Building Information Modeling (BIM)civil & structural engineeringconstruction administrationDrafting & PermittingElectrical Engineeringenvironmental engineeringenvironmental impact assessmentsGeographic Information Systems (GIS)Project & program managementquality assurance/quality controlSeismic analysis and designstormwater managementwastewater treatment design

EDC, Inc. is an Alaskan owned professional corporation and design firm with over 30 years of multi-discipline engineering experience in Alaska. It provides electrical and mechanical consulting engineering services for municipal, industrial and commercial facilities, ranging from small water pump stations and commercial buildings to 100,000 square foot water and wastewater treatment and distribution facilities.

arc flash analysisConstruction Contract Administrationconstruction inspectioncoordination studiesElectrical EngineeringFacility Commissioningfire protection designHVAC designplumbing designprocess piping designSCADA controls and instrumentation

EDF Inc. is a Woman Owned Business located in Riviera Beach, Florida, established in 1978 to provide full-service engineering solutions to the aerospace propulsion test industry. EDF designs gas turbine jet engine test cells, rocket engine test stands and facilities, and data acquisition and control systems, and has completed over 10,000 projects related to gas turbine engine testing.

acoustic analysisarchitectural engineeringCivil/Structural Engineeringconstruction managementdata acquisition and control system design and installationdesign and draftingElectrical EngineeringengineeringHVACproject managementstructural analysisthermal analysisturnkey design buildwire harness and cable design and manufacturing

Edgewater Resources is a design and engineering consultancy based in the United States focused on mixed-use waterfront developments, marinas, coastal improvements, and harbor works. Its team practices architecture, planning, landscape architecture, development finance, and marine, civil, coastal, geotechnical, mechanical, and structural engineering, working as a single integrated team across offices in Michigan, Washington, Wisconsin, Illinois, New York, North Carolina, Canada, and South America.

architecturecivil engineeringcoastal engineeringdevelopment financedock, utility and facility designgeotechnical engineeringLandscape Architecturemarine engineeringstructural engineeringwaterfront planningWave modeling