BESSAC, a worldwide major tunneling and microtunneling contractor, presents 40 years of experience on tunnel and microtunnel projects. BESSAC masters all mechanized excavation techniques (microtunneling, EPB TBM, Slurry TBM, air pressurized TBM) and has over 100 km of microtunneling and tunneling experience in about 100 projects in last 5 years. These works were realized in 20 countries on five continents.
| Website | http://www.bessac.com |
| Revenue | $67.9 million |
| Employees | 202 (202 on RocketReach) |
| Founded | 1975 |
| Technologies |
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PHP
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| Industry | Tunneling contractor, Tunnel Boring Machine Manufacturer, Microtunneling contractor, Tunnel Boring Equipment Manufacturer |
| Keywords | Tunneling, Microtunneling, Tunnel Construction, Trenchless Technology, Underground Construction, Infrastructure Construction, Excavation, Civil Engineering, Heavy Civil Construction, Pipeline Installation, Utility Installation, Ground Improvement, Geotechnical Engineering |
| Competitors | WSP, AECOM, Stantec, Mott MacDonald, Tetra Tech, Ramboll, SNC-Lavalin, Geosyntec Consultants, Golder Peru S.A., ZÜBLIN +44 more (view full list) |
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BESSAC Questions
The BESSAC annual revenue was $67.9 million in 2026.
Dominique Mazzieri is the CEO of BESSAC.
202 people are employed at BESSAC.
Top BESSAC Employees
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Dominique Mazzieri
CEO at BESSAC
Toulouse, FR2 -
Julien Bruneton
Vice President of Bessac Inc at BESSAC
Denver, CO, US2 -
Romain Abbad
Construction Manager and Deputy Project Director at BESSAC
Toulouse, Occitanie, FR3 -
Mathieu Griselain
Project Director at BESSAC
Bayonne, FR31 -
Nicolas Willig
Project Director at BESSAC
Texas, United States2 -
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3
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3
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Rim Aouidet
Assistante RH and PAIE at BESSAC
Toulouse, FR2
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