TWM provides Civil & Structural Engineering, Land Surveying and Planning services to public and private sector clients. With 65+ years in business, TWM provides services in Structures, Transportation, Land Development, Water / Wastewater and Surveying.

DEI is a multi-disciplined environmental consulting firm committed to serving governmental and private clients in meeting the challenges of increasingly complicated and rigorous environmental regulations.

CONSULTING ENGINEERS-STRUCTURAL, CIVIL, MECHANICAL, ELECTRICAL, CONSTRUCTION MANAGEMENT & SURVEYING.

Professional Engineering and Land Surveying services including: Boundary Surveys, Topographical Surveys, Mapping, GIS development, SDSFIE, Utility Inventories, Civil Engineering, Site Engineering, Roadways, Highways, Water and Sewers, Utility Engineering

public development, land development, hydrology and hydraulics analysis, Floodplain/Floodway studies, storm water drainage, erosion control, shore protection, land surveys, transportation, water, wastewater, construction inspections and GIS mapping.

Specializing in all aspects of land surveying. Boundary, Route and Topographical Surveying

Civil/ Transportation Services and Management, Surveying Services

design, specifications, cost estimating, drawings, hydaulics, water waste water treatment plants, public schools and construction observation

DESIGN & SUPERVISE CONSTRUCTION FOR FLOOD CONTROL WORK;DRAINAGE, WATER&SEWAGE WORK, HIGHWAYS, AIRPORTS, PARKS, RECREATIONAL FACILITIES, TOPOGRAPHICAL&LAND SURVEYS, PUMPING PLANTS, SUBDIVISIONS, ENVIRONMENTAL

Airborne lidar scanning, 3D laser scanning, 3D modeling, Imagery, Mobile Lidar, Mobile 3D laser surveying

CULTURAL RESOURCES MANAGEMENT: ANTHROPOLOGY, HISTORY, ART HISTORY, HISTORIC ARCHITECTURE, ETHNOLOGY, ORAL HISTORY; SERVICES: SURVEY, EXCAVATION , MANAGEMENT PLANS, RECORDS SEARCH, ARCHITECTURAL DESIGN AND CONSERVATION, NRHP ASSESSMENTS; MIDWEST, MIDSOUTH,

Arbor Green is dedicated to finding sound and practical solutions to environmental issues. We offer a full suite of natural resource management, contracting, and consulting services; as well as interpretive consulting and product development.

ENVIRONMENTAL CONSULTING & REMEDIATION DEMOLITION/EXCAVATION OVERSITE MANAGEMENT GEOTECHNICAL/CONSTRUCTION MATERIAL TESTING GEOPHYSICAL EMERGENCY RESPONSE

Flight Training Aircraft Ownership Assistance Aircraft Management Aircraft Maintenance Aircraft Rental & Charter Aircraft Storage Fuel, Oil & Oxygen Sales Pilot Merchandise Sales Property Development & Management Airport Maintenance & Service

MeritCorp is a small business providing civil engineering, land surveying, environmental and water resources services to large business, governmental agencies and private developers. The firm is located in Oswego, Illinois.

MARQ Consulting Group specializes in the planning, development, design, construction, fit-out, operation and support of training facilities and firing ranges for the Private Enthusiast, Commercial Range, Military and Law Enforcement.

Full service engineering. Ground penetrating radar (GPR) services for concrete and subsurface investigation (locate and 3D map of post tensioning, reinforcement, piping, USTs, utilities, archeological artifacts, environmental elements). 3D laser scanning.

Construction and Civil engineering consulting & design services for architectural, structural, surveying, geotechnical, design/build, site, transportation, traffic, bridge, environmental, water resources, value engineering, GIS projects

Pavement Management Systems (PMS) Pavement Design & Rehabilitation Pavement Testing Nondestructive Deflection Testing (NDT) Geographic Information Systems (GIS) Material Testing

Northwater is a water resources, geosciences and mapping company. Specialties include water quality, surface hydrology, watershed sciences/planning, hydrogeology, geomorphology, geology, mapping and natural area restoration.