LMB vs PWR

Limbach Holdings Inc.

Limbach Holdings, Inc. operates as an integrated building systems solutions company in the United States. It operates in two segments, Construction and Service. The company engages in the design, prefabrication, installation, management, and maintenance of mechanical, electrical, plumbing, and control systems, as well as heating, ventilation, air-conditioning (HVAC) system; and maintenance, and equipment upgradation, emergency service work, automatic temperature control, specialty contracting, and energy monitoring services. Its facility services comprise mechanical construction, HVAC service and maintenance, energy audits and retrofits, engineering and design build, constructability evaluation, equipment and materials selection, offsite/prefabrication construction, and sustainable building solutions and practices. The company serves research, acute care, and inpatient hospitals; public and private colleges, universities, research centers and K-12 facilities; sports arenas; entertainment facilities, and amusement rides; passenger terminals and maintenance facilities for rail and airports; government facilities comprising federal, state, and local agencies; hotels and resorts; office building and other commercial structures; multi-family apartments; data centers; and industrial manufacturing facilities. It operates in Florida, California, Massachusetts, New Jersey, Pennsylvania, Delaware, Maryland, Washington DC, Virginia, West Virginia, Ohio, and Michigan. The company was founded in 1901 and is headquartered in Pittsburgh, Pennsylvania.

Quanta Services Inc.

Quanta Services, Inc. provides specialty contracting services worldwide. The Electric Power Infrastructure Solutions segment engages in the design, construction, upgrade, repair, and maintenance of electric power transmission and distribution infrastructure and substation facilities; energized installation, maintenance, and upgrade of electric power infrastructure; installation of smart grid technologies on electric power networks; and design, installation, maintenance, and repair of commercial and industrial wirings. This segment also offers other engineering and technical services; emergency restoration services; engineering and construction services for the switchyards and transmission infrastructures; engineering and construction services related to micro-grids and battery storage; design and construction solutions to wireline and wireless communications companies and cable multi-system operators; aviation services; and training for electric workers, and gas distribution and communications industries. The Underground Utility and Infrastructure Solutions segment provides design, engineering, construction, upgrade repair, and maintenance services to customers involved in the transportation, distribution, storage and processing of natural gas, oil and other products; pipeline protection, integrity testing, rehabilitation and replacement; catalyst replacement, high-pressure and critical-path turnaround, instrumentation and electrical, and piping, and fabrication and storage tank services; engineering and construction services for pipeline systems, storage systems, and compressor and pump stations; fabrication of pipeline support systems and related structures and facilities; trenching, directional boring, and mechanized welding services; and construction services for the offshore energy market, as well as designs, installs, and maintains fueling systems and water and sewer infrastructure. The company was incorporated in 1997 and is headquartered in Houston, Texas.