42 Software as a service (SaaS) services featuring software for connecting, checking, monitoring, managing and optimizing the operation of heating, ventilation and air-conditioning systems in buildings, and for connecting, checking, monitoring, managing and optimizing the operation of valves and pumps for regulating liquid and gas flow, boilers, heat exchangers and thermal and electrical power generation systems; Platform as a service (PaaS) featuring computer software platforms for connecting, checking, monitoring, managing and optimizing the operation of heating, ventilation and air-conditioning systems in buildings, and for connecting, checking, monitoring, managing and optimizing the operation of valves and pumps for regulating liquid and gas flow, boilers, heat exchangers and thermal and electrical power generation systems; Design and development of computer hardware and software, namely, design and development of computer hardware and software for connecting, monitoring, controlling, managing and optimizing the operation of heating, ventilation and air-conditioning systems in buildings, and for connecting, checking, monitoring, managing and optimizing the operation of valves and pumps for regulating liquid and gas flow, boilers, heat exchangers and thermal and electrical power generation systems; Maintenance of computer software for connecting, monitoring, controlling, managing and optimizing the operation of heating, ventilation and air-conditioning systems in buildings, and for connecting, checking, monitoring, managing and optimizing the operation of valves and pumps for regulating liquid and gas flow, boilers, heat exchangers and thermal and electrical power generation systems; Providing temporary use of non-downloadable cloud-based software for the connection, operation and management of networked devices for connecting, monitoring, controlling, managing and optimizing the operation of heating, ventilation and air-conditioning systems in buildings, and for connecting, checking, monitoring, managing and optimizing the operation of valves and pumps for regulating liquid and gas flow, boilers, heat exchangers and thermal and electrical power generation systems