Our professionals are experienced at the various aspects of engineering and systems design, implementation, optimization and management. Areas of expertise include, environmental, mechanical, I&C, HVAC, Software and IT

We are certified through the city of Dayton as a SDB, FBE, and MBE. We are certified through the Ohio Department of Transportation as a DBE. We provide water, sewer and storm pipe as well as the accessories.

HA-m is an Environmental and Civil Engineering consulting firm specialized in hydraulic, hydrogeology, and geotechnical studies and designs.

For over 25 years, Continental Hydrodyne Systems has manufactured products for testing water. Patented, self-calibrating Colorimeters deliver the most accurate results available. Hydrodyne instruments carry a three year warranty.

Design and build waste water treatment systems. Retrofit older waste water treatment systems. Environmental remediation and soil remediation services.

Our focus is on surveying and mapping services with emphisis on geospatial framework data development and gps data collection, and data conversion services. We provide sales and training of GPS equipment and Software

DGL provides professional engineering and surveying services. Specialties consist of: roadways, bridges, drainage, parking lots, traffic operations, land subdivision, site development, industrial structural design and survey/mapping.

Flexible plastic fabricators providing liners for ponds, potable applications and secondary containment of hydrocarbons as well as clean rooms and other customized bags and bladders.

Environmental consulting & engineering services including: environmental due diligence, site investigation, soil & groundwater sampling, remediation design and implementation, permitting & compliance; O&M of wastewater & drinking water systems.

Water Treatment Chemicals Boiler & Cooling Tower service Reverse Osmosis Equipment

Landscape maintenance and installation. Large area mowing. Lawn sprinklers

We are a certified highway contractor in the State of Ohio, Michigan, Kentucky and West Virginia. We are a certified DBE contractor. We construct type I & II bridges; drainage structures, fencing, signage, and misc. concrete work.

Full service Commercial Diving company.

Special and Advanced Environmental Engineering and Science Services, based on 40 years of experience.

E3 Clean Technologies produces electrolyzers (the 'GreenBox') that clean up ammonia contamination in waste water and NOx emissions in diesel and power plant exhaust while producing fuel grade hydrogen as a free byproduct.

Manufacturers of made-to-order flexible plastic products for example pond liners, tank liners, custom-made bags and bladders, potable water liners for cisterns and rainwater harvesting systems, cleanrooms and flexible glove boxes and other items.

General Contracting, Masonry, Cabinetry (Commercial/Residential), Casework, Doors, Windows, Drywall, Painting, Hardscaping, Landscaping, Etc..,

Specializing in Chemical Treatment of Steam Boilers, Hot Water & Cooling Water & Process Water Systems. Services Include Chemical & Equipment Sales, Consulting, Service & Training

Sitework, earthwork, storm water, sanitary sewer, water lines, gas lines

Paving, asphalt, site, site work, concrete, roads, streets, alleys, road construction, storm sewer, sanitary sewer, waterlines, underground, utilities, excavation, embankment, subgrade, surface, intermediate, base