In 1984, Vertical Market Software (VMS) opened its doors to provide an integrated accounting and job costing system to general contractors throughout the country. VMS provides service, construction, and accounting software to software to contractors nationwide. They also offer a complete enterprise solution for efficient business management and optimization.

Vesta.DS, Inc. was established in 2016 to promote condensing tankless water heaters, combination boilers and heating boilers specifically designed for North America The products are manufactured in South Korea by Datsun Celtic, a company founded in 1982 that introduced European-style gas boilers into the Korean market. Today, their energy efficient products are sold throughout the world. To better serve industry, Vesta has regional sales

Vigour Unity was founded in 2019. Since then, they have become the leading provider of efficient HVAC solutions in Egypt, using VRF technologies to deliver a wide range of HVAC solutions, including Suppling, Maintenance, Aftersales Services, Studying, Technical Support, and System Selection. Their experienced, committed, and innovative mechanical engineers are specialized in VRF Systems.

Waterman Group Plc is a multidisciplinary consultancy providing sustainable solutions to meet the planning, engineering design and project delivery needs of the property, infrastructure, environment and energy markets. Founded in 1952, the company has since grown into a leading engineering and environmental consultancy with offices throughout the UK, Australia and Europe.

With over 40 years of experience, they can handle any repairs, installations, replacements, and maintenance related to HVAC industry. Their technicians are extensively trained and continually educated, they offer financing options and specials, and they provide free in-person estimates.

William Tao & Associates, Inc. (WTA) is a multi-discipline engineering firm providing innovative services in engineering and energy-effective building systems. WTA provides a wide range of engineering services including mechanical, electrical, plumbing, fire protection, building automation, structural, civil, master planning, and commissioning

Wilson Energy Ltd is one of the UK's pioneering providers of fully integrated Heating, Metering, Pre-Payment, and Billing & Bureau Services for residential homes and commercial developments.

The Worshipful Company of Plumbers is a Livery Company that aims to support and make a difference within the ancient industry of plumbing. It assists and supports charities and trainees, partners with industry through affiliations, and works closely with the Lord Mayor and the City of London.