37 Leasing of building machinery; Leasing of construction equipment; Maintenance of communications equipment; Maintenance of construction equipment; Rental of bulldozers; Rental of excavators; Road sealing and stripping; Road striping; Snow removal services; Street cleaning; Building construction; Construction equipment rental; Construction services, namely, grading; Construction services, namely, excavation; Crane rental and leasing for construction purposes; Custom construction of roads; Real estate development services in the field of development of oil and gas properties; real estate development; land development; Soil erosion control services; Waste cleaning services