![]() Inrigo Inrigo is a provider of products and process solutions for water and environment, maritime, offshore and land-based industries. | ![]() Sigma Engineering Sigma Engineering is a company that provides solutions for the control and use of water. | ![]() Alliance Consulting Engineers Alliance Consulting Engineers is an engineering company specializing in solid waste management and wastewater services. | ![]() HMG Engineers HMG Engineers (also known as Henry, Meisenheimer, and Gende) is an engineering firm specializing in transportation and water infrastructure. | ||
Founding Date | Founding Date 2000 | Founding Date 2008 | Founding Date 1993 | Founding Date 2004 | Founding Date 1966 |
Type | Type Public | Type Private | Type Subsidiary | Type Private | Type Private |
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Locations | Locations Ballerup, DK HQ Hobro, DK Risskov, DK White Bear Lake, US | Locations Vanvikan, NO HQ Yaounde, CM Heimdal, NO | Locations Niagara Falls, CA HQ | Locations Columbia, US HQ Bluffton, US Charleston, US Charlotte, US Greenville, US Columbia, US | Locations Breese, US HQ Metropolis, US Murphysboro, US Troy, US |
Employees | Employees 105 | Employees 343% increase | Employees 20 | Employees 1193% increase | Employees 34 |

Inrigo is a provider of products and process solutions for water and environment, maritime, offshore and land-based industries.
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Sigma Engineering is a company that provides solutions for the control and use of water.
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Alliance Consulting Engineers is an engineering company specializing in solid waste management and wastewater services.
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HMG Engineers (also known as Henry, Meisenheimer, and Gende) is an engineering firm specializing in transportation and water infrastructure.
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