We are geotechnical engineering and construction problem solvers and solution providers.

We’ve been solving geotechnical construction and engineering problems and providing high-quality solutions for our clients and partners across the country for more than 65 years. We’re proud to be using our expertise to build the foundations of America’s infrastructure, including projects that focus on clean air and clean water.

Nicholson is the North American subsidiary of Soletanche Bachy, a France-based global leader in geotechnical and civil engineering construction.

Soletanche Bachy and its subsidiaries around the world serve a wide range of clients in the public and private sectors, including central and local governments, industrial, general building and civil engineering contractors, property developers and project promoters.

The company offers an extensive portfolio of geotechnical solutions, special foundations, underground construction, ground improvement and pollution treatment and control.

International Family
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Our Team is extremely passionate about the work that we do. To be good at this work, you really have to love every aspect—meeting the challenges when they present themselves, solving the problems and seeing the projects come to life. And we do —we love it all.

Senior Leader


Nicholson believes every incident is preventable, and is dedicated to achieving zero incidents on every project. We’re stepping up to make our job sites some of the safest in the country. Learn more about our safety practices and initiatives.


Our culture feels like family. We work hard, we laugh a lot and we look out for each other. Though we don’t always agree one everything, at the end of the day—we’re all in it together.

Join Our Team

Build a great career with a solid support system! Join a company that feels like family and learn from some of the best in the industry.

Women in Construction

We are committed to the forward progress of women in the construction industry and the development and success of the women in Nicholson.


As a company, and as part of the global Soletanche Bachy family, we are committed to initiatives that keep our planet thriving (and green!)for future generations. Our global family’s directive is to reduce our collective carbon footprint by 40% in 2030.

A history of innovation and pioneers in foundations and soil technologies.

Our history is made up of record breaking depths, first time applications and unique solutions for some of the country’s most complicated projects.

Highlights of more than six decades of geotechnical engineering.

Nicholson installed close to 1,000 micropiles in varying orientations and loading combinations through the century-old Prairie du Sac Dam in Wisconsin and constructed a reinforced concrete transfer beam as a means of permanently supporting the structure.


A private Pittsburgh-based client contracted Nicholson to install temporary support of excavation for a massive new medical facility’s basement foundations and underground parking. As the design-build geotechnical contractor on the job, the project required the excavation of a full city block near an active emergency room to which access could not be blocked.


Teamed up with sister company Soletanche Bachy Canada, Nicholson provided a design-build solution to stabilize part of the Canadian National Railway’s railbed that was affected by a relic landslide. Nicholson’s solution, a combination of micropiles and anchors, brought the previous efforts to stabilize the railbed to an end successfully.

Highlights of more than six decades of geotechnical engineering.

Post-tension anchors were selected to repair a 65-foot long by two-inch wide crack that spanned the length of one of Wanapum Dam’s monoliths. The entire drilling, grouting and anchor tensioning processes were performed with the assistance of divers using remote cameras to allow engineers at the surface to witness the underwater operations.


Nicholson was awarded the design-build contract to replace an existing force main from the Virginia Key Central District Wastewater Treatment Plant (CDWWTP) under Biscayne Bay Norris Cut to Fisher Island. The contract included the planning, engineering, design, permitting, procurement, construction / installation, testing and the start-up of the replacement force main.


After a massive fire destroyed everything but the exterior façade, the Church of Jesus Christ of Latter Day Saints decided to restore a historic Tabernacle in Provo, Utah, and convert it into a Temple in the process. Nicholson was tasked with developing and constructing an elaborate underpinning system so that two levels of basement could be constructed below the structure. The work also included the construction of a support of excavation system around the entire complex and a ground water and cutoff wall and dewater system.


Nicholson installed a mortar grout mix to fill voids in rock layer 7 ahead of the TBM operations in some of the most unpredictable ground conditions in the country for the Port Miami Tunnel Project (POMT.) Grout was installed onshore at Watson Island and Dodge Island using up to three drills and off shore on the Government Cut channel between the two islands with up to ten barges and leads, working 24 hour shifts around the active cruise ship schedule.


Approximately 154,000 square feet of diaphragm wall was constructed top-down to support Columbia University’s Manhattanville Development in Harlem, New York City.


Nicholson installed 14,000  linear feet of grout curtain around the McCook Reservoir for the combined sewer overflow (CSO) system. The entire grouting process was computerized through the use of GROUT I.T., a state-of-the-art computerized grouting control and data collection system developed by Nicholson’s parent company, Soletanche Bachy.  At the time, the McCook Reservoir project was the largest computerized grouting project in the country.


Nicholson constructed a 50-foot-high cantilevered retaining wall with barrettes for the Abingdon Heights Condominium Tower in Arlington, VA.  This is believed to be the tallest top-down cantilevered wall in the world.


Nicholson performed extensive geotechnical work at the World Trade Center Transportation Hub, including jet grouting and micropile installation through and under the active #1 Subway Line.


Nicholson constructed a diaphragm wall support of excavation system for the U.S. Capitol Visitor Center project in Washington, DC.


A Nicholson-led joint venture installed nearly 1,000 anchors to stabilize the World Trade Center bathtub and facilitate recovery efforts.

Highlights of more than six decades of geotechnical engineering.

Nicholson installed 536 micropiles at the Mandalay Bay Hotel & Casino in Las Vegas to stabilize the structure, which had settled as much as 18 inches prior to opening.


Nicholson installed 58-strand, 320-foot long anchors at Lake Lynn Dam in West Virginia.  At the time, these were the largest and longest anchors installed in the United States.


Nicholson installed 53-strand anchors at Shepaug Dam in Connecticut. At the time, these were the largest anchors in the United States.


Nicholson was founded by Arthur Nicholson in Pittsburgh, PA. Nicholson operated as a regional pile driving company before evolving into a full-service structural support geotechnical contractor in the late 1960s.

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