Desay Battery’s business layout is mainly focused on the new energy lithium battery industry chain. The company’s subsidiary, Huizhou Desay Battery Co., Ltd., and its subsidiaries mainly specialize in small and medium-sized lithium batteries, integration of energy storage systems, and smart assembly. Hunan Desay Battery Co., Ltd. primarily specializes in energy storage cells and relevant peripheral businesses.

DRI is a global provider of products and systems for energy recovery, Indoor Air Quality , fresh air treatment, evaporative cooling, green buildings, dehumidification and pollution control. DRI has always been a technology driven company and is known for its expertise as a solution provider.

Design Electric, Inc. is an electrical contractor serving the Central and Western Virginia area. As such, they provide electrical construction and maintenance services, primarily for commercial, institutional and industrial clients.

Design Switchboards and Distribution is a reputable electrical manufacturing company that serves regions all over Australia from a comprehensively equipped and locally staffed workshop based on the Gold Coast, Queensland.

Deutsche Messe is an event organizer whose events and services have been bringing together exhibitors and visitors since 1947. Deutsche Messe has helped numerous small enterprises to become world market leaders, while at the same time supporting large-scale enterprises on their road to further expansion. Their expertise is as diverse as their portfolio and helping businesses is their passion.

Deutsche Post DHL Group is the world's pioneerlogistic company. The 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, Deutsche Post DHL Group is focusing on growth in its profitable core logistics businesses and accelerating the digital transformation in all business divisions.

DEUTZ has stood for pioneering spirit, passion and innovative power. From the time they first invented the internal combustion engine they‘ve been improving it day by day.

Devard's Air Conditioning & Heating, Plumbing and Electrical offers affordable, reliable, energy-efficient, commercial and residential plumbing, air conditioning, heating and air conditioning units for the Dallas - Ft. Worth area with their '100% customer satisfaction policy', which is their company motto and what has led to their success.

DCS has been certified as Siemens technology partner in Panels manufacturing with SIMOPRIME solution in medium voltage & SIVACON solution in low voltage as type test solutions according to IEEC.

Devidayal Solar Solutions focuses on design, development and sales of solutions in the distributed renewable energy (DRE) cold chain space. We believe in collaborating with different stakeholders and use of productive-use appliances like solar refrigerators to create and build livelihoods.

Diamond Electric Mfg. Corporation is recognized as a globally renowned company in safe, reliable and cost competitive automotive electrical components.

Diamond Energy is an Australian-based renewable energy generation and electricity retail company. They own and operate renewable generators across regional Australia and they deliver new renewables to the grid.

DICABS is India’s largest and truly integrated power equipment manufacturer of power cables (HV, LV & EHV) & transmission towers. DICABS’ state-of-the-art laboratory pioneers new technologies in the sector that has led to innovations.

For over 55 years, DID Electrical has been dedicated to delivering, installing, and demonstrating the latest home appliances and technology solutions to their valued customers. As an official guaranteed Irish member, they are committed to supporting local jobs and communities in Ireland for many years to come.

Since its founding in 1972, Digi-Key Electronics has been committed to offering the broadest selection of in-stock electronic components, as well as providing the best service possible to its customers, aiding engineers through the entire design process, from prototype to production.

Diliigent Power has set up a coal based power plant in the state of Chhattisgarh, through an SPV DB Power Ltd. The Project has been successfully commissioned in 2015. Power generated from this project is being sold under the combination of long term and short term PPAs to state owned/private distribution companies and industrial consumers.

Diodes Incorporated is a renowned global manufacturer and supplier of high-quality semiconductor products to the world’s major companies in the automotive, industrial, computing, consumer electronics, and communications markets. Their broad range of application-specific solutions and solutions-focused sales, coupled with worldwide operations of 32 sites, includes engineering, testing, manufacturing, and customer service,

Direct Energy gives customers choice, simplicity, and innovation where energy, data, and technology meet. They make energy work harder for home and business customers across North America. They empower customers with simple solutions to track, understand, and control the electricity and natural gas they use.

Since its launch in 1985, Direct Line’s aim has always been to put the customer first.

Direct Power offers electrical and electronic components targeted at Electrical Engineering customers comprising commercial and non-commercial belonging to any community because we believe diversity is the golden key to progress.

Dispel LLC is a developer and distributor of secure remote-access and operational-management solutions. Dispel products are designed to supercharge every aspect of the facility operations. The Dispel Zero Trust Engine will help them grow, secure systems, and deliver more units at a lower cost, with products that achieve goals even faster when used together.

Distec Ltd has over 29 years of experience in providing specialist technology solutions to the Manufacturing, digital signage, healthcare, and Retail sectors. Work with industry-pioneering vendors to provide our customers with world-class technology solutions to help increase efficiency, productivity and competitiveness.

Distributie Oltenia is the legal successor of Electrica Oltenia since March 15, 2007, continuing the exclusive activity of electricity distribution as the owner of the assets necessary to carry out the activity following the separation of activities imposed by European legal requirements. Distributie Oltenia aims to improve the level of safety in electricity distribution and reduce energy losses.

Dixie Electric Ltd. manufactures and remanufactures heavy duty starters and alternators for automotive, medium and heavy duty trucks, industrial, farm and marine applications. They are committed to a Management System that ensures continuous improvement, customer satisfaction, and integrity with our employees, customers and suppliers.

Electric cooperative serving over 38,000 accounts in 7 counties including Jones, Jasper, Forrest, Wayne, Perry, Covington, and Clarke. The association provides reliable and affordable electric power to its members. The association is governed by a seven-member board of directors and has 92 full-time employees.

DKD Electric has committed to providing the highest level of expertise to its customers. As a pioneer in the electrical contracting industry, they have set the standards with their highly skilled team and vast amount of experience.

DMEC is an accelerator for offshore renewable energy solutions. The mission is to advance the development, deployment & operation of innovative offshore renewable energy solutions promoting a sustainable energy future for all.

DMF brings a creative approach to lighting and offers industry-renowned technology that sets the bar for performance, quality, and flexibility. Its in-house Research and Development team designs products that provide exceptional aesthetics and are modular, which allows its lights to adapt easily to a future room redesign.

DMS are an independent supplier of metering and control solutions, principally operating within the Building Services, District Heating, Renewables, Utility and Distribution markets, with a proven track record for excellent customer service and support spanning over 20 years.

DNV - Maritime is the classification society and a recognized advisor for the maritime industry. They deliver world-renowned testing, certification, and technical advisory services to the energy value chain including renewables, oil and gas, and energy management. They are one of the certification bodies, helping businesses assure the performance of their organizations, products, people, facilities, and supply chains