Skil – aire, division of Tithe Corp is a wholly-owned subsidiary of Baltimore, Maryland based Tithe Corporation, an environmental control and air conditioning products and services company that delivers integrated product technologies for cooling and enthalpy control solutions.

St. John Properties, Inc.'s portfolio has grown to more than 22 million square feet of real estate consisting of class ‘A’ office, flex/R&D, retail, warehouse, and residential units. It continues to expand the portfolio, explore new markets and constantly evaluate new business opportunities.

Stulz-ATS is a globally renowned manufacturer of environmental control equipment including a full line of energy-efficient precision air conditioners, ultrasonic humidifiers, and desiccant dehumidifiers. They also provide cooling solutions and services for mission critical applications through the design and manufacture of highly energy efficient temperature and humidity control equipment for commercial and industrial applications.

Supreme Service Today is Baltimore’s trusted heating and cooling contractor and we are excited that you want to learn more about us. We have factory-trained, experienced, and qualified HVAC technicians to provide installation, repair, or maintenance services to any and all major brands of your cooling, heating, or geothermal equipment (including air conditioners, furnaces, heat pumps, and other HVAC systems).

The Whalen Company is the pioneering manufacturer of HVAC vertical stack riser heat-exchanger fan coil units and water-source heat pumps for hotels, apartments and other multi-story buildings. Our systems are distinctive in concept, performance, reliability and value.

Thos. Somerville Co. is a complete full line distributor of plumbing, heating, and air conditioning supplies.

Whisker Labs develops sensing and software technology for home intelligence. They develop energy management services to intelligently reduce home energy demand during peak load times to help communities and homes save energy and money. Their Connected Savings service is used by energy providers to help balance the grid and optimize residential thermostats for savings and comfort.