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View Gall Thomson's top competitors like Clemco Industries Corp., Containment Solutions, and Elastec.

WSP
WSP is one of the world’s leading engineering, science and infrastructure solutions firms, uniting its multidisciplinary expertise to shape communities to advance humanity. From local beginnings to a globe-spanning presence today, WSP operates in over 50 countries and employs approximately 83,000 professionals, known as Visioneers. Together they pioneer solutions and deliver innovative projects in the transportation, infrastructure, environment, building, energy, water, and mining and metals sectors. WSP is publicly listed on the Toronto Stock Exchange (TSX:WSP).
Montreal, CA
Private
$10.6B Revenue
http://wsp.com
73.8K Employees
Kleinfelder
At Kleinfelder, we have been connecting great people to the best work since 1961. We are engineers, scientists, and construction professionals providing solutions that improve our clients’ transportation, water, energy, and other private infrastructure. As an integrated, cross-disciplinary team of bright, curious, and innovative problem-solvers, we are dedicated to doing the right thing, every day, on every project.
San Diego, California, US
Private
$1.3B Revenue
https://www.kleinfelder.com
2.7K Employees
Foseco
FOSECO is the foundry technology brand of Vesuvius, supporting foundries worldwide with products, technologies and technical expertise that improve casting quality, productivity and sustainability. For more than a century, FOSECO has worked alongside foundries to solve process challenges across the casting value chain. Combining innovative products, application expertise and technical support, we help customers improve performance, reduce waste and adapt to the changing demands of modern manufacturing. More than a supplier, FOSECO is a partner, working with customers to tackle today's challenges and develop solutions for the future.
UK
Private
$25M Revenue
http://www.foseco.com
1.1K Employees
G2 Leader Summer 2026 G2 Best Est ROI Mid-Market Summer 2026 G2 Easiest Admin Mid-Market Summer 2026 G2 Most Implementable Summer 2026 G2 Best Results Mid-Market Summer 2026 G2 Lead Capture Mid-Market Summer 2026 Inc Fastest Growing Private Companies 2026 Inc Best Workplace 2026
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