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View Terraspec's top competitors like BMT, GSI Environnement Inc, and GeoScan.

Tetra Tech
Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end technical and engineering services for projects worldwide. With more than 25,000 employees working together, Tetra Tech provides clear solutions to complex problems by Leading with Science® to address the entire water cycle, protect and restore the environment, and design sustainable and resilient infrastructure. Tetra Tech est un chef de file mondial dans les domaines de l'eau, de l'environnement et des infrastructures durables, offrant des services techniques et d'ingénierie de qualité supérieure pour des projets à l'échelle mondiale. Grâce à ses 25 000 employés, Tetra Tech propose des solutions optimales aux problèmes les plus complexes en utilisant la science d’abord pour répondre aux besoins en matière de cycle de l'eau, en protection et restauration de l'environnement ainsi qu’en conception d’infrastructures durables et résilientes.
Pasadena, California, US
Public
$2.8B Revenue
http://www.tetratech.com
27.5K Employees
TTEK Ticker
Terracon
Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients. Since 1965, Terracon has evolved into a successful multi-discipline firm specializing in environmental, facilities, geotechnical, and materials services. Terracon has achieved significant expansion through both internal growth and acquisitions. Terracon currently has more than 8,000 employees in more than 200 locations nationwide. Additionally, we partner with our U.S. clients to serve their international needs. Terracon’s growth is due to dedicated employees who are responsive to clients, provide quality services, and take advantage of opportunities in the marketplace. Terracon provides services on thousands of projects each year. Our culture, systems, and structure enable us to excel at both small and large projects. By combining our national resources with specific local area expertise, we consistently overcome obstacles and deliver the results our clients expect. Terracon serves a diverse portfolio of private and public clients. By being responsive, resourceful, and reliable, we strive to exceed our clients’ expectations for service, solutions, quality, and speed of delivery. Based on a deep understanding of our clients’ needs, our commitment is centered around these key objectives. To view our LinkedIn page guidelines, please visit: http://www.terracon.com/social-media-rules/
Olathe, Kansas, US
Private
$1.3B Revenue
http://www.terracon.com
7K Employees
Geosyntec Consultants
Geosyntec is a consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure.
Boca Raton, Florida, US
Private
$549.5M Revenue
https://www.geosyntec.com
2.5K Employees

Top Terraspec 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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