Deltrian (Deltrian International) is specialized in the filtration field for over 50 years. Thanks to its experience, the company is an expert in the air-quality management in various fields such as food-processing, automotive, microelectronic and pharmaceutical industries, and also in hospitals.

Dennis’ Heating and Air Conditioning, Inc provides HVAC Installation, Retrofits, Service and Maintenance, as well as a full service sheet Metal Fabrication Shop. They are capable of fabricating almost anything, if customers can draw it, they can build it. The company is known for their knowledge, reliability, and incredible customer service.

DFW IT Partner is a Reliable IT Partner providing one-stop IT solutions in Dallas, Austin, Fortworth, Houston, and San Antonio, Texas, USA. They provide businesses with the expertise, resources, and support needed to drive innovation and stay ahead of the competition in today’s fast-paced digital landscape. By working with them, businesses can achieve their technology innovation goals more efficiently and effectively.

DG Cities, based in London, United Kingdom (UK), is at the forefront of urban innovation. They are an urban innovation company specializing in the integration of ‘smart city’ technologies and approaches to maximize their benefits for cities, and optimize the use of resources, infrastructure and services.

DHL Group is the world's pioneer logistic company. The DHL Group connects people and markets and is an enabler of global trade. It aspires to be the first choice for customers, employees and investors worldwide. To this end, the Group focuses on growth in its profitable core logistics businesses and accelerating the digital transformation in all business divisions.

Digital Twin Consortium is a global ecosystem of users ,who are driving best practices for digital twin usage and defining requirements for new digital twin standards. It coalesces industry, government and academia to drive consistency in vocabulary, architecture, security and interoperability of digital twin technology. It advances the use of digital twin technology from aerospace to natural resources.

Duct & Vent Cleaning of America, Inc. was founded in April of 1989 by Ron Eckman. As early as February of 1990, Duct & Vent Cleaning of America, Inc. joined NADCA, the HVAC Inspection, Maintenance and Restoration Association. In fact, they were the first company to be allowed membership that used portable hepa vacuums in the cleaning process.

For over 30 years, Duct Doctor USA has been providing quality air duct cleaning for both residential and commercial customers. Duct Doctor was founded by a board-certified allergist in 1985 with a mission to improve the air quality of homes and workplaces.

Dura Products, Inc is a state-of-the art Indiana based manufacturer of metering, pumping and dispensing systems for the DEF, AG, and turf Chemical industries. Founded by owners with decades of knowledge in farming and the chemical sales industry, Dura Products Inc goes beyond excellent design to incorporate innovative, versatile and durable transfer pump solutions with the end consumer always in mind.

Established in 1995, Dusty Ducts, Inc. is certified as a minority-woman-owned-small business. As a Michigan corporation we provide HVAC Restoration, Indoor Air Quality and Energy Conservation for clients throughout Michigan and across the Midwest United States.

Founded in 1859, the Deutscher Verein des Gas- und Wasserfaches is the German association for gas and water with headquarters in Bonn. Its official English translation is the German Technical and Scientific Association for Gas and Water.

Dwyer Instruments Inc. are manufacturers of multiple products from different markets like HVAC, building automation, valve automation, etc. Their products include gauges for pressure, flow, level and temperature.

E Instruments International by Sauermann designs, manufactures and markets a complete range of innovative instrumentation solutions encompassing Combustion Gas Analyzers, Emissions Analyzers, Indoor Air Quality, and Calibration equipment especially designed for the power, process, industrial, institutional, food, and HVAC markets.

The E.ON Group is one of Europe's largest operators of energy networks and energy infrastructure and a provider of innovative customer solutions for 50 million customers. Thus, they are decisively driving forward the energy transition in Europe and are committed to sustainability, climate protection, and the future of the planet.

EcoFlow Tech is a revolutionary mobile power company that is reinventing the way the world accesses energy. As makers of industry-first, smart and powerful mobile power products, EcoFlow’s mission is to harness new technologies to foster inclusion and help raise standards of living in areas of the world where power shortages stunt economic growth and development.

EcoRebates is the industry’s largest product offer platform for Residential and Commercial products. They support energy efficient product categories, including Major Appliances, HVAC equipment, Water Heating, Boilers, Plumbing equipment, Smart Home products, Insulation and more.

EcoVadis is the world's most trusted provider of business sustainability ratings. Global supply chains, financial institutions, and public organizations rely on EcoVadis to monitor and improve the sustainability performance of their business and trading partners.

As Britain’s biggest generator of zero carbon electricity, EDF is working 24/7 to help the United Kingdom (UK) reach Net Zero carbon emissions. They are busy generating zero carbon electricity from wind, nuclear and solar to help cut UK carbon emissions to nothing.

Founded in 1914, the EDA is the trade association for electrical wholesale distributors in the UK. Wholesale distributors are the essential link between manufacturers of electro-technical products and the electricians and electrical contractors who install them. The EDA supports and represents UK wholesalers, who join as Members, with Affiliated Membership open to manufacturers and service providers.

Elektrotermex was founded in 1988. From the beginning of its existence to the present day, it has been 100% a company with Polish capital. The market activity was focused on heating services. They were the first in the country to start the production of compact heat distribution centers. They were very well received, as evidenced by medals and diplomas at trade fairs and exhibitions.

Since 1999, Elite Cooling, Heating & Plumbing has been serving Bradenton, Sarasota, and Manatee counties with top-quality HVAC and plumbing services. With more than 30 years of experience, their licensed and insured team provides quality work and great customer service every time.

Emizen is incorporate considering the rapidly evolving high technology sector in today’s world; to fulfill the needs of trade and industry using technology, to improve life, society and the environment applied in industrial, home, as well as office, leading industries in the world, need for operation of a society or enterprise or the services and facilities necessary for social activate, such as education, healthcare, economic development.

EMS Ice, Inc. provides a total cleaning solution for customers while meeting or exceeding quality standards at a competitive price. EMS Ice was founded and incorporated in 1996; providing an environmentally engineered solution for difficult cleaning, coatings removal, and surface preparation problems.

Deploying autonomous intelligence and analytics, Encycle improves commercial HVAC management, energy efficiency and building comfort to reduce operating costs and carbon footprint. As the only utility-endorsed HVAC optimization software, their patented machine learning solutions seamlessly integrate into maintenance workflows and enable multi-site companies to maximize energy efficiency, improve budgetary spend, and reach sustainability goals.

Eneko meets the needs of the sector with its effective and cost-efficient technology products complying with Turkish and European standards, while keeping up the quality on ventilation and heat/energy recovery systems.

Enerac is a manufacturer of portable emissions analyzers for stack testing for (O2, CO, NOx, So2, HC, Efficiency).

ENERGAIR is the sustainable compressed air management arm of CMC – the global experts in compressed air control, performance and monitoring solutions. Harnessing almost four decades of knowledge and experience, and tapping into CMC’s growing range of brands, products and technologies, ENERGAIR provides a fully integrated compressed air management service that focuses on helping customers reduce their compressed air-related carbon footprint.

Energy Market Solutions GmbH (EMS) supplement and optimize business models with electricity-based products and solutions and turn them into successful players in the energy markets of tomorrow. From billing to logistics, from analysis to bundling, when it comes to industry-specific solutions for the energy market of tomorrow, EMS are ready.

Energy Solutions is focused on creating large-scale environmental impacts by providing cost effective, market-based carbon, energy, and water management solutions. For over 25 years, they've been pioneering end-to-end, market-driven solutions that deliver reliable, large-scale and cost-effective energy savings and carbon reduction to their utility, government, and private sector clients across North America.

EnergyLabs offers a portfolio of energy-saving solutions to optimize and reduce the energy consumption in buildings, significantly lowering their carbon footprint. Energy Labs takes over the safe and smooth implementation of all software and hardware components. Its integrated monitoring and control solution enables a holistic and high-resolution data collection plus effective analysis, providing actionable energy saving insights on demand.